CN213586814U - High-power heat radiation structure of protectiveness closed-loop control - Google Patents
High-power heat radiation structure of protectiveness closed-loop control Download PDFInfo
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- CN213586814U CN213586814U CN202121189529.4U CN202121189529U CN213586814U CN 213586814 U CN213586814 U CN 213586814U CN 202121189529 U CN202121189529 U CN 202121189529U CN 213586814 U CN213586814 U CN 213586814U
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Abstract
The utility model discloses a protective closed-loop control high-power heat dissipation structure, which belongs to the field of radar heat dissipation and comprises a radar host cavity and a plurality of heat sources, wherein the plurality of heat sources are distributed in the radar host cavity in an interval array manner; independent fin air channels are arranged between two adjacent heat sources and outside the two heat sources positioned at the outermost two sides of the array; the independent fin air duct is internally provided with fins extending from the air inlet to the air outlet; heat pipes are embedded in two opposite outer side walls of the independent fin air duct, and exposed surfaces of the heat pipes embedded in the outer side walls of the independent fin air duct are flush with the outer side walls of the independent fin air duct; the air inlet end of the radar host cavity is provided with an air inlet fan and an air inlet guide plate, and the air outlet end is provided with an air outlet fan and an air outlet guide plate. The integrated distributed independent air channels are adopted, limited space among the antenna array elements is utilized for array arrangement, independent heat dissipation is carried out on the independent units, heat concentration and mutual influence are avoided, and quick temperature equalization and quick heat dissipation are achieved.
Description
Technical Field
The utility model belongs to the technical field of the radar heat dissipation, concretely relates to high-power heat radiation structure of protection nature closed-loop control.
Background
The TR component is a transmitting and receiving component of the radar apparatus, and is a main heat source in the radar apparatus. Many radar equipment structure size are compact, for example phased array radar because of the spacing restriction of antenna array element, heat is concentrated saturation easily in the compact space, is difficult to the dissipation. Especially for phased array radars with large single-channel transmitting power, the design of high-power heat dissipation in a small space is extremely difficult.
Under the conditions of high temperature environment and strong solar radiation, liquid cooling heat dissipation is often adopted for high-power heat dissipation, but the placement of a liquid cooling internal and external machine occupies a large space, and meanwhile, the cost is very high. The liquid cooling heat dissipation needs auxiliary heating and can not be powered off under the low temperature condition, and if the liquid is frozen and frozen, the liquid cooling pipeline can be burst, so that permanent damage is caused. And the conventional penetrable air cooling design can destroy the self dustproof and waterproof grade of the radar equipment or increase the connector switching interconnection complexity.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high-power heat radiation structure of protectiveness closed-loop control to solve the intensive high-power heat dissipation problem of concentrating in the radar equipment small-size space.
For realizing the purpose of the utility model, the technical proposal adopted is that: a protective closed-loop control high-power heat dissipation structure comprises a radar host cavity and a plurality of heat sources, wherein the heat sources are distributed in the radar host cavity in an interval array manner; the heat source array is characterized in that independent fin air ducts are arranged between two adjacent heat sources and outside the two heat sources positioned at the outermost two sides of the array; the two ends of the independent fin air duct are respectively provided with an air inlet and an air outlet, fins extending from the air inlet to the air outlet are arranged inside the independent fin air duct, and the fins are distributed at intervals; heat pipes are embedded in two opposite outer side walls of the independent fin air channel, exposed surfaces of the heat pipes embedded in the outer side walls of the independent fin air channel are flush with the outer side walls of the independent fin air channel, and the exposed surfaces of the heat pipes and the outer side walls of the independent fin air channel are both contacted with adjacent heat sources; the two ends of the radar host cavity are an air inlet end and an air outlet end which correspond to the air inlet and the air outlet respectively, the air inlet end is provided with an air inlet fan and an air inlet guide plate which corresponds to the air inlet fan, and the air outlet end is provided with an air outlet fan and an air outlet guide plate which corresponds to the air outlet fan.
As a further alternative, waterproof end covers are arranged between the air inlet guide plate and the independent fin air channels and between the air outlet guide plate and the independent fin air channels, and air channel openings corresponding to the independent fin air channels are formed in the waterproof end covers; waterproof grooves are formed in two end faces of the independent fin air duct and two end faces of the radar host cavity, end face waterproof rubber strips are embedded into the waterproof grooves, and the waterproof end covers simultaneously abut against the end face waterproof rubber strips in the waterproof grooves and are connected with the radar host cavity through screws.
As a further alternative, high-heat-conductivity silicone grease is coated between the heat source and the contact surfaces of the heat pipe and the independent fin air duct.
As a further alternative, the air inlet and the air outlet are both in a flaring shape with a small inside and a large outside.
As a further alternative, the upper end of the cavity of the radar host is connected with a cavity cover plate through a screw, and a cavity waterproof rubber strip is arranged between the cavity of the radar host and the cavity cover plate.
As a further alternative, the air inlet fan and the air outlet fan are both dustproof and waterproof high-pressure axial fans.
As a further alternative, the radar host cavity is provided with a waterproof breather valve.
As a further alternative, a dust hood located outside the air inlet fan is arranged at the air inlet end of the radar host cavity, and the dust hood is connected with the radar host cavity through screws.
As a further alternative, a control system, a temperature sensor and a humidity sensor are further arranged in the radar host cavity, the temperature sensor and the humidity sensor are respectively and electrically connected with an input end of the control system, and the air inlet fan and the air outlet fan are respectively and electrically connected with an output end of the control system.
The utility model has the advantages that:
1. the cooling system adopts forced air cooling for heat dissipation, simplifies cooling equipment, reduces cost, and simultaneously widens the general applicability of the cooling system in a low-temperature environment; an integrated distributed independent air duct is designed, array arrangement is carried out by utilizing limited space among antenna array elements, independent heat dissipation is carried out on independent units in a targeted manner, heat concentration and mutual influence are avoided, and quick temperature equalization and quick heat dissipation are realized;
2. the distributed independent heat dissipation is carried out on the intensive and concentrated high-heat source, the structure is simplified, and the heat dissipation efficiency and the light weight of the assembly are improved; the heat dissipation structure has high heat dissipation efficiency, good heat dissipation performance and capabilities of prolonging the service life of a heat source component and improving the reliability of a whole system;
3. the wind beam flow path and the contact position between the structural members are protected, so that the dustproof and waterproof performance of the system is ensured;
4. the design does not increase the interconnection and switching level of the connector, simplifies the interconnection among modules, has an independent air duct and does not destroy the integral dustproof and waterproof grade;
5. can combine sensor and control system to carry out closed-loop monitoring control, to heat and moisture information real-time supervision, carry out effectual regulation and protection to the system after real-time analysis handles, promote security, intellectuality and the radiating efficiency of system.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings required for the description of the embodiments will be briefly introduced below, it should be understood that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is an exploded view of a protective closed-loop control high-power heat dissipation structure provided by an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a heat source and an independent fin air duct array in the protective closed-loop control high-power heat dissipation structure provided by the embodiment of the present invention;
fig. 3 is a schematic structural diagram of an independent fin air duct in a protective closed-loop control high-power heat dissipation structure provided by an embodiment of the present invention;
FIG. 4 is a side view of the freestanding fin pack of FIG. 3;
reference numerals: 1-an air outlet fan; 2-an air outlet guide plate; 3-waterproof end cap; 4-air duct openings; 5-end face waterproof adhesive tape; 6-cavity waterproof adhesive tape; 7-a heat source; 8-a heat pipe; 9-a fin; 10-independent fin air ducts; 11-a cavity cover plate; 12-waterproof vent valve; 13-a control system; 14-radar host cavity; 15-an air intake fan; 16-an intake air deflector; 17-dust shield.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention. It is to be understood that the drawings are designed solely for the purposes of illustration and description and not as a definition of the limits of the invention. The connection relationships shown in the drawings are for clarity of description only and do not limit the manner of connection.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
Fig. 1 to 4 show a protective closed-loop control high-power heat dissipation structure provided by the present invention, which includes a radar host cavity 14 and a plurality of heat sources 7, wherein the plurality of heat sources 7 are distributed in the radar host cavity 14 in an interval array; independent fin air ducts 10 are arranged between two adjacent heat sources 7 and outside the two heat sources 7 positioned at the outermost two sides of the array; the two ends of the independent fin air duct 10 are respectively provided with an air inlet and an air outlet, fins 9 extending from the air inlet to the air outlet are arranged inside the independent fin air duct 10, and the fins 9 are distributed at intervals; heat pipes 8 are embedded in two opposite outer side walls of the independent fin air duct 10, exposed surfaces of the heat pipes 8 embedded in the outer side walls of the independent fin air duct 10 are flush with the outer side walls of the independent fin air duct 10, and the exposed surfaces of the heat pipes 8 and the outer side walls of the independent fin air duct 10 are both in contact with adjacent heat sources 7; the two ends of the radar host cavity 14 are an air inlet end and an air outlet end corresponding to the air inlet and the air outlet respectively, the air inlet end is provided with an air inlet fan 15 and an air inlet guide plate 16 corresponding to the air inlet fan 15, and the air outlet end is provided with an air outlet fan 1 and an air outlet guide plate 2 corresponding to the air outlet fan 1.
The heat source in the radar equipment is a T/R module which is widely used for various phased array radars, each T/R module forms an independent transceiving unit, and the parameters of the electromagnetic waves transmitted by the T/R module are changed by changing the phase of internal current.
The structure can be suitable for heat dissipation of a high-power heat source in a compact space of protective equipment, such as the arrangement condition of a phased array radar brick type T/R module along with an array element array. The hot surface of the brick type T/R module is arranged on the large side wall, the heat pipe 8 and the independent fin air duct 10 are welded and integrated to contact the hot surface of the T/R module, and therefore rapid heat conduction and temperature equalization are achieved. The heat pipes 8 are embedded on two sides of the independent fin air duct 10, so that heat sources are distributed on two sides in a crossed manner, and mutual influence and uneven heat distribution on two sides caused by heat source accumulation are avoided.
Air flows through the independent fin air channel 10 and the fins 9 after passing through the air inlet fan 15 and the air inlet guide plate 16, heat stored in the heat capacity of the air channel is taken away, and heat exchange airflow in the air channel is extracted out by the air outlet fan 1 through the air outlet guide plate 2, so that the temperature of the heat concentration part of the radar system tends to be stable. And the modules interconnected with the T/R module in the radar equipment can be arranged and fixed above the independent fin air duct 10, and the interconnection connector can be directly inserted or connected nearby without increasing the switching level, so that the radar equipment is short in stroke, low in loss and simple in assembly.
The heat pipe 8 is embedded into the outer side wall of the independent fin air duct 10 and welded into a whole, so that the contact thermal resistance is reduced as much as possible, and the heat dissipation efficiency is improved. High-heat-conductivity silicone grease is coated between the contact surfaces of the heat source 7, the heat pipe 8 and the independent fin air duct 10, and gaps between the contact surfaces are filled to reduce the thermal surface conduction contact resistance.
Waterproof end covers 3 are arranged between the air inlet guide plate 16 and the independent fin air channels 10 and between the air outlet guide plate 2 and the independent fin air channels 10, and air channel openings 4 corresponding to the independent fin air channels 10 are formed in the waterproof end covers 3; waterproof grooves are formed in two end faces of the independent fin air duct 10 and two end faces of the radar host cavity 14, end face waterproof rubber strips 5 are embedded into the waterproof grooves of the two, and the waterproof end covers 3 simultaneously abut against the end face waterproof rubber strips 5 in the waterproof grooves of the two and are in screw connection with the radar host cavity 14.
Namely, a waterproof structure is arranged between each part of the gas inflow and outflow path so as to improve the protection reliability. Waterproof grooves are formed in two end faces of each independent fin air duct 10 and are embedded into end face waterproof rubber strips 5, and the waterproof end covers 3 are driven by the screw locking force of the waterproof end covers 3 to deform through linear or surface contact extrusion rubber strips, so that gaps of the waterproof grooves are filled, and moisture or dust brought in by air of wind beams is blocked. The waterproof groove of the radar host cavity 14 at the position of the fan is also embedded into the end face waterproof rubber strip 5, and the screw locking force of the waterproof end cover 3 is also utilized to drive the waterproof end cover 3 to contact and extrude the rubber strip to deform and fill the gap in the groove, so that the intrusion of moisture and dust in the external environment from the gap and the joint is blocked.
The upper end of the radar host cavity 14 is connected with a cavity cover plate 11 through a screw, and a cavity waterproof rubber strip 6 is arranged between the radar host cavity 14 and the cavity cover plate 11. Specifically, the cavity waterproof rubber strip 6 can be installed on the upper end face of the radar host cavity 14, the cavity cover plate 11 is driven to be in line or surface contact with the cavity waterproof rubber strip 6 by the aid of the screw locking force of the cavity cover plate 11, cavity sealing is completed, and environment moisture, dust or rainwater scouring is isolated to prevent water from entering the whole radar host.
The air inlet and the air outlet are both in a flaring shape with a small inside and a big outside. Dense fins are arranged inside the independent fin air duct 10 to increase the heat dissipation area, and the flaring shape of the air inlet and the air outlet forms a guide inclined plane to facilitate the air to be filled and flow out. The cross-section of independent fin wind channel 10 is the rectangle, and the long limit of rectangle corresponds the broad face of independent fin wind channel 10 promptly, and the minor face corresponds the narrow face of independent fin wind channel 10 promptly, and heat pipe 8 sets up on its broad face, and heat conduction area of contact is big, and the wall thickness of independent fin wind channel 10 of narrow face department is greater than the wall thickness of independent fin wind channel 10 of broad face department, such suitable thickening in order to increase the installation position and improve the wind channel heat capacity.
The air inlet end of the radar host cavity 14 is provided with a dust hood 17 located outside the air inlet fan 15, the dust hood 17 is in screw connection with the radar host cavity 14, wind resistance is reduced, water flow is easy to dredge, and sand accumulation and blockage of the air path are avoided. A waterproof vent valve 12 is arranged in the cavity 14 of the radar main machine, the inside of the cavity of the whole machine is communicated with outside gas, and internal condensation caused by alternating temperature difference is avoided. The protection grade of the whole machine can be more than or equal to IP 67.
The air inlet fan 15 and the air outlet fan 1 are both dustproof and waterproof high-pressure axial fans, so that the fans can work normally in a harsh environment.
The radar host cavity 14 is also internally provided with a control system 13, a temperature sensor and a humidity sensor, the temperature sensor and the humidity sensor are respectively and electrically connected with the input end of the control system 13, and the air inlet fan 15 and the air outlet fan 1 are respectively and electrically connected with the output end of the control system 13.
Temperature sensors can be distributed at multiple points to monitor the temperature conditions of the main heat source and the heat dissipation part at any time, the temperature sensors feed temperature information back to the control system 13, and the control system 13 analyzes and sends out program instructions to adjust and control the working state of each fan, so that the system can be intelligently adjusted along with the environment and quickly reach a stable state. The humidity sensor feeds back the humidity and moisture condition in the radar host cavity 14 to the control system 13, the control system 13 makes pre-judgment early warning or power-off protection according to the condition after analysis, and controls the current on-off state of each part such as a fan and the like, so that equipment is prevented from being damaged by short circuit. The control system 13 may be communicatively coupled to a server that is communicatively coupled to a display to facilitate the understanding of the state of the system at any time.
Through simulation verification simulation, the size of the cavity of the analysis model is about L500 multiplied by W400 multiplied by H130, the array spacing of the T/R module is 22mm, the height of the T/R module is 75mm, the heating pure heat of the T/R module is 1500W, and the ambient temperature is 55 ℃. The sample is seen to be a high heat intensive concentrated heat dissipation in a compact space. 8038 high-pressure axial-flow fan is selected. After the system reaches a steady state, the lowest temperature rise is about 7 ℃, the maximum temperature rise is about 16 ℃, the temperature uniformity of the system is better, and the heat exchange coefficient is better.
The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.
Claims (9)
1. A protective closed-loop control high-power heat dissipation structure comprises a radar host cavity and a plurality of heat sources, wherein the heat sources are distributed in the radar host cavity in an interval array manner; the heat source array is characterized in that independent fin air ducts are arranged between two adjacent heat sources and outside the two heat sources positioned at the outermost two sides of the array; the two ends of the independent fin air duct are respectively provided with an air inlet and an air outlet, fins extending from the air inlet to the air outlet are arranged inside the independent fin air duct, and the fins are distributed at intervals; heat pipes are embedded in two opposite outer side walls of the independent fin air channel, exposed surfaces of the heat pipes embedded in the outer side walls of the independent fin air channel are flush with the outer side walls of the independent fin air channel, and the exposed surfaces of the heat pipes and the outer side walls of the independent fin air channel are both contacted with adjacent heat sources; the two ends of the radar host cavity are an air inlet end and an air outlet end which correspond to the air inlet and the air outlet respectively, the air inlet end is provided with an air inlet fan and an air inlet guide plate which corresponds to the air inlet fan, and the air outlet end is provided with an air outlet fan and an air outlet guide plate which corresponds to the air outlet fan.
2. The protective closed-loop control high-power heat dissipation structure of claim 1, wherein waterproof end caps are arranged between the air inlet guide plate and the independent fin air ducts and between the air outlet guide plate and the independent fin air ducts, and air duct openings corresponding to the independent fin air ducts are formed in the waterproof end caps; waterproof grooves are formed in two end faces of the independent fin air duct and two end faces of the radar host cavity, end face waterproof rubber strips are embedded into the waterproof grooves, and the waterproof end covers simultaneously abut against the end face waterproof rubber strips in the waterproof grooves and are connected with the radar host cavity through screws.
3. The protective closed-loop control high-power heat dissipation structure as recited in claim 1, wherein high thermal conductivity silicone grease is applied between the heat source and the contact surfaces of the heat pipe and the independent fin air duct.
4. The protective closed-loop control high-power heat dissipation structure as recited in claim 1, wherein the air inlet and the air outlet are both flared with a small inside and a large outside.
5. The protective closed-loop control high-power heat dissipation structure as recited in claim 1, wherein a cavity cover plate is connected to an upper end of the radar host cavity through a screw, and a cavity waterproof rubber strip is arranged between the radar host cavity and the cavity cover plate.
6. The protective closed-loop control high-power heat dissipation structure of claim 1, wherein the inlet fan and the outlet fan are both dustproof and waterproof high-pressure axial fans.
7. The protective closed-loop control high-power heat dissipation structure according to claim 1, wherein the radar host cavity is provided with a waterproof vent valve.
8. The protective closed-loop control high-power heat dissipation structure as recited in claim 1, wherein a dust hood is disposed at the air inlet end of the radar host cavity and located outside the air inlet fan, and the dust hood is connected with the radar host cavity through screws.
9. The protective closed-loop control high-power heat dissipation structure of claim 1, wherein a control system, a temperature sensor and a humidity sensor are further arranged in the radar host cavity, the temperature sensor and the humidity sensor are respectively and electrically connected with an input end of the control system, and the air inlet fan and the air outlet fan are respectively and electrically connected with an output end of the control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121189529.4U CN213586814U (en) | 2021-05-31 | 2021-05-31 | High-power heat radiation structure of protectiveness closed-loop control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121189529.4U CN213586814U (en) | 2021-05-31 | 2021-05-31 | High-power heat radiation structure of protectiveness closed-loop control |
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| CN213586814U true CN213586814U (en) | 2021-06-29 |
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| CN202121189529.4U Active CN213586814U (en) | 2021-05-31 | 2021-05-31 | High-power heat radiation structure of protectiveness closed-loop control |
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2021
- 2021-05-31 CN CN202121189529.4U patent/CN213586814U/en active Active
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