CN-224229944-U - Plasma light source radiator

Abstract

The utility model discloses a plasma light source radiator, which relates to the technical field of plasma light sources, and specifically adopts the technical scheme that the inside of a light source body penetrates through a flow guide channel, the outside of the light source body is sleeved with a high-heat-conductivity radiating shell, the surface of the shell is integrally formed with dense radiating fins, a fan and a temperature sensor are arranged at the top of the light source body.

Inventors

• LI HANGUO

Assignees

• 合肥中科微波科技有限公司

Dates

Publication Date

20260512

Application Date

20250429

Claims (7)

1. 1. A plasma light source heat sink, comprising: a plasma light source (1) with a diversion channel (11) penetrating through the interior; The heat dissipation shell (2) is covered outside the plasma light source (1), an opening (23) is formed in the top of the heat dissipation shell (2), and an air inlet is formed in the bottom of the heat dissipation shell; A fan (3) which is arranged at the top of the heat dissipation shell (2) and is used for guiding air flow in from the air inlet and guiding out through the diversion channel (11) and the opening (23); the temperature sensor (4) is arranged at the top of the heat dissipation shell (2) and the detection end extends into the diversion channel (11).
2. 2. The plasma light source radiator according to claim 1, wherein the surface of the radiating shell (2) is integrally connected with a plurality of radiating fins (21) which are uniformly distributed, and the radiating shell (2) and the radiating fins (21) are made of aluminum or copper.
3. 3. A plasma light source radiator according to claim 1, characterized in that a channel is reserved between the top of the plasma light source (1) and the inner side of the radiator housing (2) for air to flow through the guide channel (11) and then be discharged through the opening (23).
4. 4. The plasma light source radiator according to claim 1, wherein a plurality of screw holes (12) are reserved at the upper part of the plasma light source (1), a plurality of through holes (25) are correspondingly formed in the top of the radiating shell (2), and the assembly of the plasma light source (1) and the radiating shell (2) is realized by sequentially penetrating the through holes (25) and the connecting screw holes (12) through screws (5).
5. 5. The plasma light source radiator according to claim 1, wherein a mounting hole (24) is formed in the top of the radiating shell (2), and the temperature sensor (4) is connected in the mounting hole (24) through threads.
6. 6. A plasma light source radiator according to claim 1, characterized in that the top of the radiator housing (2) is provided with a reserved area (22), and the fan (3) is mounted in the reserved area (22).
7. 7. A plasma light source radiator according to claim 1, wherein the periphery of the plasma light source (1) is closely attached to the inner side of the heat dissipation case (2) after being assembled with the heat dissipation case (2) to form a heat conduction path.

Description

Plasma light source radiator Technical Field The utility model relates to the technical field of plasma light sources, in particular to a plasma light source radiator. Background In the prior art, a traditional plasma light source heat dissipation scheme (such as a plasma lamp light source structure with a publication number of CN 201556604U) mostly adopts a single passive heat dissipation structure, and heat conduction is realized by arranging metal heat dissipation fins outside a light source and utilizing natural convection of the surfaces of the fins and air. When the design is used for dealing with a low-power light source, the heat balance can be maintained by virtue of the heat dissipation area expanded by the fins, however, with the breakthrough of the semiconductor laser excitation technology, the high-frequency pulse power supply and other technologies, the power density of the modern plasma light source is improved by 3-5 times compared with that of the traditional scheme, and the single-fin heat dissipation scheme has obvious limitations, and is particularly as follows: 1. when the temperature gradient of the surface of the light source is increased suddenly under high power and only depends on metal heat conduction to the root of the fin, the local heat flux density exceeds the heat conduction limit of the material, so that heat is accumulated in the light source matrix; 2. Natural convection heat dissipation efficiency is positively related to temperature difference, and the temperature difference between the surface temperature of the fins and air is reduced in a high-power scene, so that the convection heat exchange coefficient is reduced, and heat dissipation capacity is exponentially attenuated; 3. The heat flow can not be dynamically regulated by passive heat dissipation, and when the power of the light source suddenly increases, the fins can recover heat balance after long-time heat accumulation, so that transient thermal shock is easily caused. Disclosure of utility model Aiming at the defects of the prior art, the utility model provides a plasma light source radiator, which solves the problems proposed by the background technology. In order to achieve the above purpose, the utility model is realized by the following technical scheme that the plasma light source radiator comprises: the plasma light source is internally provided with a diversion channel in a penetrating way; The heat dissipation shell is covered outside the plasma light source, the top of the heat dissipation shell is provided with an opening, and the bottom of the heat dissipation shell is provided with an air inlet; The fan is arranged at the top of the heat dissipation shell and used for guiding air flow in from the air inlet and guiding the air flow out through the diversion channel and the opening; the temperature sensor is arranged at the top of the heat dissipation shell, and the detection end extends into the diversion channel. Further, the surface of the heat dissipation shell is integrally connected with a plurality of heat dissipation fins which are uniformly distributed, and the heat dissipation shell and the heat dissipation fins are made of aluminum or copper. Further, a channel is reserved between the top of the plasma light source and the inner side of the heat dissipation shell, so that air is discharged through an opening after flowing through the diversion channel. Further, a plurality of screw holes are reserved at the upper part of the plasma light source, a plurality of through holes are correspondingly formed in the top of the heat dissipation shell, and the plasma light source and the heat dissipation shell are assembled by sequentially penetrating the through holes and connecting the screw holes through screws. Further, the top of the heat dissipation shell is provided with a mounting hole, and the temperature sensor is connected into the mounting hole through threads. Further, a reserved area is arranged at the top of the heat dissipation shell, and the fan is arranged in the reserved area. Further, after the plasma light source is assembled with the heat dissipation shell, the periphery of the plasma light source is tightly attached to the inner side of the heat dissipation shell so as to form a heat conduction path. The utility model provides a plasma light source radiator. Compared with the prior art, the device has the following The beneficial effects are that: According to the plasma light source radiator, the diversion channel is additionally arranged in the light source and is matched with the active fan to force airflow to flow, so that the airflow accurately penetrates through the core heating area, and heat is taken away rapidly. Meanwhile, the temperature sensor is linked with the start and stop of the fan, and is automatically switched to the pure fin for heat dissipation in low load, so that the energy-saving requirement is met, the use requirement of the existing high-power plasma