CN111224306A

CN111224306A - IP68 protection level pressure-bearing type laser lamp box

Info

Publication number: CN111224306A
Application number: CN201811426717.7A
Authority: CN
Inventors: 陈永茂; 黄轲琴; 宗明; 孙凯; 任玉振
Original assignee: Second Branch Of Xi'an Mingdu Optoelectronics Technology Co ltd
Current assignee: Second Branch Of Xi'an Mingdu Optoelectronics Technology Co ltd
Priority date: 2018-11-27
Filing date: 2018-11-27
Publication date: 2020-06-02

Abstract

The invention provides an IP68 protection stage pressure-bearing type laser lamp box which comprises a laser and a laser power supply which are electrically connected, and further comprises a laser radiator, a laser power supply radiator and a case which is formed by connecting the peripheral side walls end to end and is communicated up and down, wherein the laser radiator and the laser power supply radiator are respectively used as a bottom plate and a top cover of the case and are connected with the case to form a closed cavity, and the laser power supply are arranged in the cavity. The laser power supply radiating fin and the top cover of the case are integrated into a whole, the optical platform, the laser radiating fin and the bottom plate of the case are integrated into a whole, and the laser radiating fin and the laser power supply radiating fin are directly exposed in the air, so that the radiating efficiency is improved, the weight of the laser lamp is reduced, the sealing performance and the bearing performance of the IP68 protection-level pressure-bearing type laser lamp box are improved, air and water vapor are prevented from entering the pressure-bearing type laser lamp box, and the service life of the laser lamp is prolonged.

Description

IP68 protection level pressure-bearing type laser lamp box

Technical Field

The invention belongs to the technical field of laser heat dissipation, and particularly relates to an IP68 protection-level pressure-bearing type laser lamp box.

Background

The laser lamp is also called a laser performance system, and refers to a laser device which is formed by taking a laser as a light source, installing the laser device on an optical platform and additionally installing a scanning system and an auxiliary system. The method is mainly applied to the fields of stage performance, fountain waterscape, illumination brightening and the like.

The heat dissipation system of the laser lamp has great influence on the improvement of the energy conversion efficiency of the laser lamp, and in the operation process of a laser device, if the heat generated by the working gas can be timely removed, the temperature of the working gas can be rapidly kept stable, so that the high-efficiency RF electro-optic conversion efficiency is obtained, and the laser and the stable laser output power are improved. The heat dissipation mode of the existing laser lamp is mainly wind cooling and water cooling.

For water-cooled heat dissipation, this results in excessive weight and volume of the laser lamp system and a high failure rate. Therefore, it is not suitable for the environment with strict requirements on volume and weight.

Air-cooled heat dissipation generally takes gas as a heat transfer medium, and the gas is forced to flow rapidly by a fan, so that heat generated when the laser lamp works is taken away in a convection mode. Compared with a water-cooling heat dissipation system, the air-cooling heat dissipation system has the advantages of small volume, light weight, simple structure and the like, is widely applied and becomes a heat dissipation mode commonly used by laser lamps.

The machine case of the laser lamp that adopts the forced air cooling heat dissipation mode at present is open-type machine case, and the fin of laser lamp fin and other accessories is all installed in quick-witted incasement portion, combines the fan to force the heat dissipation, and such heat radiation structure makes quick-witted case unable sealed, and then can't avoid air, dust and steam to get into inside the equipment to cause oxidation, the corruption to laser lamp and auxiliary, the light path is polluted, makes the trouble of laser lamp increase, and the light decay increases, life-span receives the influence.

Disclosure of Invention

The invention aims to solve the problems of oxidation, corrosion, light path pollution, faults and the like of a laser and other auxiliary parts caused by the fact that air, dust and water vapor easily enter a case because the existing laser lamp heat dissipation structures are all arranged in the case and the case is provided with an opening.

Therefore, the invention provides an IP68 protection pressure-bearing type laser lamp box which comprises a laser and a laser power supply which are electrically connected, and further comprises a laser radiator, a laser power supply radiator and a vertically through case which is formed by connecting the peripheral side walls end to end, wherein the laser radiator and the laser power supply radiator are respectively used as a bottom plate and a top cover of the case and are connected with the case to form a closed cavity, and the laser power supply are arranged in the cavity.

Furthermore, the laser and the laser radiator are arranged in a back-to-back manner and are in close contact with each other, and the laser power supply radiator are arranged in a back-to-back manner and are in close contact with each other.

Further, IP68 protection level pressure-bearing formula laser lamp house still includes the optics platform that supports and place the quick-witted case, the upper surface of optics platform is regarded as to the laser radiator, and optics platform and cavity form integral type overall structure.

Further, the laser radiator and the laser power supply radiator are both radiating fins.

Furthermore, the radiating fins cover the upper through hole and the lower through hole of the case along the length direction of the case, the radiating fins are hermetically connected and attached to the side portions of the peripheral side walls of the case, and the length of the radiating fins is consistent with that of the case.

Further, heat conducting layers containing graphene are respectively arranged between the laser radiator and the laser and between the laser power supply radiator and the laser power supply.

The bottom plate or the top cover and the case are integrally formed, cast or welded;

further, the cavity is filled with positive pressure inert gas.

Further, the inert gas is helium or nitrogen.

The invention has the beneficial effects that: according to the IP68 protection stage pressure-bearing type laser lamp box provided by the invention, the laser power supply radiating fin and the top cover of the case are integrated into a whole, the laser radiating fin, the optical platform and the bottom plate of the case are integrated into a whole, the laser radiating fin and the laser power supply radiating fin are directly exposed in the air, the radiating efficiency is improved, the weight of the laser lamp is reduced, meanwhile, the laser radiating fin, the laser power supply radiating fin and the case form a sealed cavity, the sealing performance of the laser lamp box is improved, air, dust and water vapor are prevented from entering the interior of the laser lamp box, and the service life of the laser lamp is prolonged.

The IP68 protection-level pressure-bearing type laser lamp box adopts a box body which is integrally cast or welded and an upper cover sealing cover to form a sealed and sealed case, has no glue seal, can isolate the entrance of air, dust and water vapor, further avoids the corrosion, oxidation and pollution of the water vapor, the air and the dust to the laser lamp and accessories thereof, and prolongs the service life of the laser lamp; in addition, the sealed case is filled with positive pressure inert gas, original air in the case is replaced to serve as protective gas, the laser lamp and auxiliary parts of the laser lamp are comprehensively protected, the case of the laser lamp can bear high pressure even if the case is underwater, and the laser lamp cannot be damaged.

The present invention will be described in further detail below with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic diagram of the whole structure of an IP68 protection-stage pressure-bearing type laser lamp box.

Fig. 2 is a schematic view of a laser lamp box without heat sink.

Description of reference numerals: 1. a chassis; 2. a laser; 3. a laser heat sink; 4. a laser power supply; 5. a laser power supply radiator; 6. an optical platform; 7. a cavity; 8. an inflation inlet.

Detailed Description

Example 1:

the laser lamp heat dissipation structure aims at solving the problems that the existing laser lamp heat dissipation structure is arranged in a case, and an opening is formed in the case, so that dust, air and water vapor easily enter the case, and the laser and other auxiliary parts are oxidized, corroded, broken down and the like. The embodiment provides an IP68 protection pressure-bearing type laser lamp box, as shown in FIG. 1, including laser 2 and laser power supply 4 of electricity connection, still include laser radiator 3, laser power supply radiator 5 to and by the upper and lower quick-witted case 1 that link up that the lateral wall end to end constitutes all around, laser radiator 3 and laser power supply radiator 5 are regarded as the bottom plate and the top cap of quick-witted case 1 respectively, are connected with quick-witted case 1 and constitute confined cavity 7, and laser 2 and laser power supply 4 are arranged in this cavity 7.

Specifically, the laser 2 and the laser power supply 4 are both closely mounted on the inner wall of the cavity 7.

Different from the traditional water-cooling heat dissipation, the laser radiator 3 and the laser power radiator 5 in the embodiment are both installed outside the case 1, and the case 1, the laser radiator 3 and the laser power radiator 5 form a sealed structure. The laser radiator 3 and the laser power supply radiator 5 are both arranged outside the case 1, so that the weight of the laser lamp is reduced; in other words, the laser radiator 3 and the laser power supply radiator 5 are both arranged on the outer wall of the case 1 and directly exposed in the air, so that the heat dissipation efficiency is improved, and the carrying and the transportation are convenient; the case 1, the laser radiator 3 and the laser power supply radiator 5 form a sealed structure, so that dust, air and water vapor can be prevented from entering the interior of the equipment, the laser and accessories are oxidized, corroded and polluted, the faults of the laser lamp are increased, the light attenuation is increased, and the service life is influenced.

And when arranging the aquatic in, in order to have better pressure-bearing and sealed effect, form bottom plate and quick-witted case, top cap and 1 homogeneous molding casting or welding of quick-witted case in this embodiment, and replace traditional splice plate structure, can ensure the sealing performance of quick-witted case, improve the sealed pressure-bearing performance of quick-witted case, prolong the life of quick-witted case, and then just also prolonged the life of laser lamp.

When the IP68 protection-stage pressure-bearing laser lamp box of the present embodiment is installed in the air for use, the cabinet 1 made of aluminum alloy material is preferably selected; when the IP68 protection-class pressure-bearing type laser lamp box is installed and used underwater, a stainless steel cabinet is preferred.

Meanwhile, positive pressure inert gas (such as nitrogen or helium with the pressure of 0.12MPa to 0.2 MPa) is filled in the cavity 7, so that the pressure bearing capacity of the case is ensured, and meanwhile, the oxidation can be prevented. The inert gas includes 6 gases of helium, neon, argon, krypton, xenon and radon, which are chemically inert and do not easily react with other substances, and thus serve as a shielding gas of the laser lamp in this embodiment. In this embodiment, helium or nitrogen is preferably filled in accordance with general usage habits. The cavity 7 of the case is filled with inert gas with positive pressure (original air in the cavity of the case is replaced), so that the case can bear water pressure with certain pressure when the laser lamp works underwater, the case is prevented from being damaged by the water pressure, and the laser lamp is further protected.

It should be particularly noted that, in order to facilitate the filling of the positive pressure inert gas, a charging port 8 (see fig. 2) for filling the positive pressure inert gas into the chassis body 1 is formed on the chassis.

Specifically, after the components of the laser lamp are placed in the lamp box, the upper cover is covered on the upper portion of the lamp box and sealed through the O-shaped sealing ring, positive pressure inert gas is pumped into the lamp box through the inflation inlet 8 by using a pump, and after inflation is completed, the inflation inlet 8 is sealed, so that the inert gas in the lamp box is prevented from leaking, and the sealing performance of the case is further improved.

Particularly, on the basis of the inert gas, the whole case in the embodiment is of a sealed and closed structure, so that dust, air and water vapor can be prevented from entering the case body 1, and through tests, the fully sealed case of the embodiment with the inside filled with the inert gas reaches the protection level of IP 68.

It should be noted that IP is an abbreviation of Ingress Protection, and IP68 level is a Protection level against the intrusion of foreign matter into the electrical equipment enclosure. IP68 indicates that the equipment can be completely protected from dust ingress and, under pressure, can be flooded for long periods of time without damaging the equipment.

Therefore, the sealed laser lamp box provided by the embodiment completely prevents dust from entering, the light path system and the optical accessories in the system always work in a dust-free environment, and the light loss is lower and more stable; the water vapor is completely rejected from entering, the optical system and the circuit part are no longer threatened by condensation and are always in a dry environment, the operation is more stable, and the failure rate is lower; the air is completely prevented from entering, positive pressure inert gas is filled, the circuit board and the control part take the harm of oxidation away from the situation, the work is more stable, and the service life is longer; under the protection, the embodiment can further provide a laser with higher end, the quality of the light beam is better, the quality of the light beam is improved, and higher scanning speed and larger scanning angle are brought. The picture is more stable and the projection is farther.

Example 2:

the embodiment provides an IP68 protection pressure-bearing type laser lamp box, as shown in FIG. 1, including laser 2 and the laser power supply 4 of electricity connection, still include laser radiator 3, laser power supply radiator 5 to and by the upper and lower quick-witted case 1 that link up that all around lateral wall end to end constitutes, laser radiator 3 and laser power supply radiator 5 regard as quick-witted case 1's bottom plate and top cap respectively, are connected with quick-witted case 1 and constitute confined cavity 7, laser 2 and laser power supply 4 are arranged in this cavity 7.

As a further optimization, as shown in fig. 1, the laser 2 is disposed opposite to the laser heat sink 3 and in close contact therewith, and the laser power source 4 is disposed opposite to the laser power source heat sink 5 and in close contact therewith.

Specifically, to illustrate the specific structure of the IP68 protection-stage pressure-bearing type laser lamp box provided in this embodiment, preferably, the housing 1 is a rectangular box with four sides (not limited to this shape), and its peripheral side walls are connected end to form a barrier structure that penetrates up and down, that is, the housing 1 is without top and bottom, the laser power heat sink 5 covers the upper through opening of the housing 1 as a top cover, and the laser heat sink 3 covers the lower through opening of the housing 1 as a bottom plate, that is, the laser heat sink 3, the laser power heat sink 5 and the four side walls constitute a sealed cavity 7 for accommodating the laser 2 and the laser power source 4. In other words, the laser radiator 3 is a radiator and is also a bottom plate of the chassis, and the laser power supply radiator 5 is a radiator and is also a top cover of the chassis 1, which is also a special point of the "integral" laser radiator in this embodiment.

In the structure, the laser radiator 3 has two functions of a chassis bottom plate and heat radiation, so that the weight of equipment can be reduced, the heat radiation efficiency is improved, and sealing protection is facilitated; similarly, the laser power supply radiator 5 has two functions of a top cover of the case and heat dissipation, so that the weight of the equipment can be reduced, the heat dissipation efficiency can be improved, and sealing protection is facilitated.

As shown in fig. 1, since the space inside the cabinet 1 is limited and the laser lamp is complicated, the laser 2 and the laser power source 4 are arranged to face each other in the vertical direction as an optimum layout for saving space.

In particular, the present embodiment preferably arranges the laser 2 and the laser power source 4 on the top cover inner wall and the bottom plate inner wall of the cavity 7, which are opposite to each other, but the present invention is not limited thereto, and may be modified accordingly to suit the field application according to the actual application.

Example 3:

on the basis of embodiment 2, the IP68 protection-stage pressure-bearing type laser lamp box further comprises an optical platform 6 for supporting and placing the case 1, the laser radiator 3 is used as the upper surface of the optical platform 6, and the optical platform 6 and the cavity 7 form an integrated integral structure. The upper part and the lower part of the case 1 are respectively connected with the laser power supply radiator 5 and the laser radiator 3, and the laser radiator 3 is used as the upper surface of the optical platform 6 to be connected with the optical platform 6, so the heat dissipation device has an integral structure.

It is worth mentioning that, in this embodiment, the laser radiator 3 has three functions of an optical platform, a chassis base plate and heat dissipation, and only one laser radiator 3 is needed, so that the functions of the optical platform and the chassis base plate can be realized, and the optical platform upper surface and the chassis base plate do not need to be additionally added, therefore, the IP68 protection-level pressure-bearing type laser lamp box reduces the weight of the laser lamp equipment, and meanwhile, because the radiators are directly exposed in the air, the heat dissipation efficiency is also improved, and because the design of the traditional open chassis is cancelled, the IP68 protection-level pressure-bearing type laser lamp box of this embodiment is more favorable for sealing protection.

Example 4:

in addition to embodiment 2 or embodiment 3, preferably, both the laser radiator 3 and the laser power supply radiator 5 are heat radiating fins. Other air-cooled heat dissipation structures are also possible.

Example 5:

the embodiment provides an IP68 protection pressure-bearing type laser lamp box, as shown in FIG. 1, including laser 2 and laser power supply 4 of electricity connection, still include laser radiator 3, laser power supply radiator 5 to and by the upper and lower quick-witted case 1 that link up that all around lateral wall end to end constitutes, laser radiator 3 and laser power supply radiator 5 are regarded as the bottom plate and the top cap of quick-witted case 1 respectively, are connected with quick-witted case 1 and constitute confined cavity 7, laser 2 and laser power supply 4 are arranged in this cavity 7.

As a further optimization, as shown in fig. 1, the laser 2 is disposed opposite to the laser heat sink 3 and in close contact therewith, and the laser power source 4 is disposed opposite to the laser power source heat sink 5 and in close contact therewith. The laser radiator 3 and the laser power supply radiator 5 are both traditional radiating fins and are generally made of aluminum materials.

Particularly, in order to improve the heat dissipation efficiency and increase the heat dissipation area, the heat dissipation fins cover the upper and lower through holes of the chassis 1 along the length direction of the chassis 1, the heat dissipation fins are hermetically connected and attached to the side portions of the peripheral side walls of the chassis 1, and the length of the heat dissipation fins is consistent with that of the chassis 1.

Therefore, the upper radiating fins (the laser radiator 3) and the lower radiating fins (the laser power radiator 5) are respectively used as the bottom plate and the top cover of the case 1 to form a closed cavity 7 with the case 1, in the embodiment, the radiating fins are hermetically connected and attached to the edge portions of the peripheral side walls of the case 1, the length of the radiating fins is consistent with that of the case 1, air, dust and water vapor are isolated from entering the cavity 7, and the sealing performance of the cavity 1 is further improved.

Example 6:

on the basis of embodiment 2, a layer of graphene with a thickness of 0.1mm is coated between the laser radiator 3 and the laser 2 and between the laser power supply radiator 5 and the laser power supply 4 respectively.

Particularly, graphene is a two-dimensional carbon nanomaterial with a hexagonal honeycomb lattice formed by sp hybridized orbits of carbon atoms, has very good heat conduction performance, and is coated between the laser radiator 3 and the laser 2 and between the laser power supply radiator 5 and the laser power supply 4, so that the heat dissipation efficiency can be improved, and the heat generated by the laser 2 and the laser power supply 4 is rapidly conducted to the external environment through the graphene.

In order to ensure the sealing performance and make the graphene have better heat conductivity, through multiple debugging tests, the embodiment obtains that the graphene with the thickness of 0.1mm or the heat conduction layer containing the graphene is the optimal heat conduction scheme.

In summary, according to the IP68 protection pressure-bearing type laser lamp box provided by the invention, the laser power supply radiating fin and the top cover of the case are integrated into a whole, the optical platform, the laser radiating fin and the bottom plate of the case are integrated into a whole, and the laser radiating fin and the laser power supply radiating fin are both directly exposed in the air, so that the radiating efficiency is improved, the weight of the laser lamp is reduced, the sealing performance of the IP68 protection pressure-bearing type laser lamp box is improved, air, dust and water vapor are prevented from entering the case part, the inside of the laser lamp box is ensured to be clean, dustless, dry and water vapor-free, and positive pressure inert gas is filled in the sealed case to prevent the oxidation of devices in the case, thereby prolonging the service life of the laser lamp.

The above examples are merely illustrative of the present invention and should not be construed as limiting the scope of the invention, which is intended to be covered by the claims and any design similar or equivalent to the scope of the invention. The components and structures of the present embodiments that are not described in detail are well known in the art and do not constitute essential structural elements or elements.

Claims

1. The utility model provides a IP68 protection pressure-bearing formula laser lamp house, includes laser instrument (2) and the laser power supply (4) of electricity connection, its characterized in that: still include laser instrument radiator (3), laser power supply radiator (5) to and by all around lateral wall end to end the constitution about link up quick-witted case (1), laser instrument radiator (3) and laser power supply radiator (5) are connected with quick-witted case (1) and are constituteed confined cavity (7) as the bottom plate and the top cap of quick-witted case (1) respectively, laser instrument (2) and laser power supply (4) are arranged in this cavity (7).

2. The IP68 protection-class pressure-bearing laser lamp box of claim 1, wherein: the laser (2) and the laser radiator (3) are arranged back to back and are in close contact, and the laser power supply (4) and the laser power supply radiator (5) are arranged back to back and are in close contact.

3. The IP68 protection-class pressure-bearing laser lamp box of claim 2, wherein: the laser radiator is characterized by further comprising an optical platform (6) for supporting and placing the case (1), the laser radiator (3) serves as the upper surface of the optical platform (6), and the optical platform (6) and the cavity (7) form an integrated integral structure.

4. The IP68 protection-class pressure-bearing laser lamp box of claim 2 or 3, wherein: the laser radiator (3) and the laser power supply radiator (5) are radiating fins.

5. The IP68 protection-class pressure-bearing laser lamp box of claim 4, wherein: the radiating fins cover the upper through hole and the lower through hole of the case (1) along the length direction of the case (1), the radiating fins are hermetically connected and attached to the side portions of the peripheral side walls of the case (1), and the length of the radiating fins is consistent with that of the case (1).

6. The IP68 protection-class pressure-bearing laser lamp box of claim 2, wherein: and heat conduction layers containing graphene are respectively arranged between the laser radiator (3) and the laser (2) and between the laser power supply radiator (5) and the laser power supply (4).

7. The IP68 protection-class pressure-bearing laser lamp box of claim 1, wherein: the bottom plate or the top cover and the case (1) are integrally formed, cast or welded;

the cavity (7) is filled with positive pressure inert gas.

8. The IP68 protection-class pressure-bearing laser lamp box of claim 7, wherein: the inert gas is helium or nitrogen.