阅读说明：本技术 一种高集成度大功率有源相控阵雷达阵面汇流条装置 (High-integration-level high-power active phased array radar array surface bus bar device ) 是由 明文华 张永杭 王月 廖攀攀 邵宗科 何庆庆 胡文超 张哲� 于 2021-08-06 设计创作，主要内容包括：本发明提供了一种大功率雷达阵面汇流条装置,包括绝缘体(1)、500V+汇流条(2)、500V-汇流条(3)、固定装置(4),绝缘体(1)前后两端封闭,中间开设有贯穿前后和左右的两层槽(12),500V+汇流条(2)和500V-汇流条(3)分别放置在两层槽(12)中,固定装置(4)将500V+汇流条(2)、500V-汇流条(3)和绝缘体(1)固定在一起,每根500V+汇流条(2)或500V-汇流条(3)的额定电流为300A,额定电压为DC500V。通过该种设计,从而满足走线空间要求,长度足够,覆盖整个列骨架空间,绝缘性好,保证人身安全,散热性好,保证设备安全。(The invention provides a high-power radar front bus bar device which comprises an insulator (1), 500V + bus bars (2), 500V-bus bars (3) and a fixing device (4), wherein the front end and the rear end of the insulator (1) are closed, the middle of the insulator (1) is provided with a front layer groove (12), a rear layer groove (12) and a left layer groove (12) are arranged in the middle of the insulator, the front layer groove and the right layer groove penetrate through the insulator, the 500V + bus bars (2) and the 500V-bus bars (3) are respectively arranged in the two layers of grooves (12), the fixing device (4) fixes the 500V + bus bars (2), the 500V-bus bars (3) and the insulator (1) together, the rated current of each 500V + bus bar (2) or 500V-bus bar (3) is 300A, and the rated voltage is DC 500V. Through this kind of design to satisfy and walk the line space requirement, length is enough, covers whole skeleton space that is listed as, insulating nature is good, guarantees personal safety, and good heat dissipation guarantees equipment safety.)

1. A high-power radar front plane bus bar device is characterized in that: the novel bus bar comprises an insulator (1), 500V + bus bars (2), 500V-bus bars (3) and a fixing device (4), wherein the front end and the rear end of the insulator (1) are sealed, two layers of grooves (12) penetrating through the front and the rear and the left and the right are formed in the middle of the insulator (1), the 500V + bus bars (2) and the 500V-bus bars (3) are respectively placed in the two layers of grooves (12), the 500V + bus bars (2), the 500V-bus bars (3) and the insulator (1) are fixed together by the fixing device (4), the rated current of each 500V + bus bar (2) or 500V-bus bar (3) is 300A, and the rated voltage is DC 500V.

2. The high power radar front plane bar arrangement according to claim 1, wherein: a plurality of 500V-bus bars (3) are placed in a groove (12) on the upper layer of an insulator (1), a plurality of 500V + bus bars (2) are placed in a groove (12) on the lower layer of the insulator (1), and leading-out terminal mounting terminals of the 500V + bus bars (2) and the 500V-bus bars (3) are placed at left and right intervals.

3. The high power radar front plane bar arrangement according to claim 2, wherein: the positive leading-out end (22) of the 500V + bus bar (2) and the main structure of the 500V + bus bar (2) are positioned on the same plane, the negative leading-out end (322) of the 500V-bus bar (3) is bent downwards, namely, a first plane (322) extends out of the main structure of the 500V-bus bar (3), the front end of the first plane (322) is vertically bent downwards to form a bent surface (324), the lower end of the bent surface (324) is bent forwards to form a negative leading-out end (322), and the negative leading-out end (322) and the positive leading-out end (22) of the 500V + bus bar (2) are positioned on the same plane.

4. The high power radar front plane bar arrangement according to claim 3, wherein: the first plane (322) and the bending surface (324) as well as the bending part of the bending surface (324) and the negative electrode leading-out end (322) are designed to be inner fillets, the thicknesses of the first plane (322), the bending surface (324) and the negative electrode leading-out end (322) are the same, and the inner fillets are 1 time of the thickness of the plate.

5. The high power radar front plane bar arrangement according to claim 1, wherein: the insulation distance between the upper part and the lower part of the 500V + bus bar (2) and the 500V-bus bar (3) is 6mm, the air insulation distance between the leading-out ends of the 500V + bus bar (2) and the 500V-bus bar (3) is 20mm, namely the distance between the leading-out ends of the 500V + bus bar (2) and the 500V-bus bar (3) and the adjacent conductor is 20 mm.

6. The high power radar front plane bar arrangement according to claim 1, wherein: the fixing device (4) comprises a fixing clamp (42) and a fixing lower plate (46), the fixing clamp (42) comprises a top plate (422) and side plates (424) formed by bending downwards along two ends of the top plate (422), the bottom ends of the side plates (424) on two sides respectively extend outwards to form two fixing upper plates (426), at least 2 through holes are formed in the fixing upper plates (426), the top plate (422) and the two side plates (424) just wrap the top end and the left and right sides of the insulator (1), the height of the two side plates (424) is equal to or slightly less than the height of the insulator (1) needing to be fixed, the fixing lower plate (46) is placed at the bottom of the insulator (1) and extends out of the left and right sides of the insulator (1), through holes or screw holes are formed in the parts extending out of the left and right sides of the insulator (1) corresponding to the through holes of the fixing plate (426), the through holes for fixing the upper plate (426) and the screw holes for fixing the fixing lower plate (46) are screwed in through screws, the 500V + bus bar (2) and the 500V-bus bar (3) are fixed in the insulator (1), and the whole high-power radar array plane bus bar device is fixed on the antenna framework through the screw passing through the through hole of the fixed upper plate (426), the through hole of the fixed lower plate (46) and the through hole on the antenna framework and the matching of nuts.

7. The high power radar front plane bar arrangement according to claim 6, wherein: the insulation clamp is characterized by further comprising a limiting block (5), wherein the limiting block (5) is positioned between the two side plates (424) of the fixing clamp (42) and the left side surface and the right side surface of the insulation body (1), one surface, facing the side plates (424), of the limiting block (5) is provided with a limiting groove, and the width of the limiting groove can just accommodate the side plates (424);

still include clamp plate (6), be located between roof (422) of fixation clamp (42) and the top surface of insulator (1), spacing groove has been seted up towards the one side of roof (422) in clamp plate (6), and the width of spacing groove can hold roof (422) just.

8. The high power radar front bus bar arrangement according to any one of claims 1 to 7, wherein: the whole high-power radar front bus bar device is designed in a sectional mode and is divided into 3 sections, the sections are connected through the clamp (100), the 500V + bus bar (2) and the 500V-bus bar (3) are divided into three sections, butt joints of the sections are connected through friction stir welding, the insulator (1) is divided into three sections, and the sections are connected through the clamp (100).

9. The high power radar front plane bar arrangement according to claim 8, wherein: the clamp (100) comprises an upper clamping block (102), a lower clamping block (104) and a screw piece (106), the upper clamping block (102) is of an inverted U-shaped structure, the lower clamping block (104) is of a U-shaped structure corresponding to the upper clamping block (102), the upper clamping block (102) and the lower clamping block (104) are connected through the screw piece (106) to clamp the insulator (1), the left side and the right side of the lower clamping block (104) are respectively provided with two fixing holes (1042), the insulators (1) on two sides of the subsection of the insulator (1) are correspondingly provided with through holes, the fixing holes (1042) on one side of the lower clamping block (104), the corresponding through holes on the insulator (1) and the fixing holes (1042) on the other side of the lower clamping block (104) are sequentially screwed through the screw piece (106), and therefore the insulator (1) and the clamp (100) are fixed together.

10. The high power radar front plane bar arrangement according to claim 8, wherein: 500V + busbar (2) and 500V-busbar (3) of the high-power radar array face busbar device of 500V respectively stretch out 8 and connect the end, wherein 1 group is the input, 7 groups are the output, the input of 500V + busbar (2) and 500V-busbar (3) inserts a set of terminal, 3 fixed orificess of every design of end of drawing forth, a terminal can be installed respectively to every fixed orifices both sides.

Technical Field

The invention relates to a radar power supply technology, in particular to a high-power active phased array radar array surface bus bar device.

Background

Along with the high-speed development of modern battlefield reconnaissance monitoring equipment, the demand for improving the radar detection power is continuously improved, the radar detection power is generally improved by two ways of increasing the size of an antenna and increasing the radar transmitting power in engineering, but the increase of the size of the radar antenna is limited by maneuverability and has certain limitation, so the increase of the radar transmitting power also becomes a necessary choice. At present, the transmitting power of a large-scale mobile radar can reach hundreds of kilowatts, and due to the harsh requirements of the active phased array radar in various aspects such as high integration level and the like, the power supply wiring of the radar system becomes difficult point increasingly along with the continuous improvement of the transmitting power. The traditional radar adopts a wiring mode of adding a cable to a connector, is limited by wiring space and weight, is difficult to meet the requirements of high reliability and environmental adaptability, and is difficult to solve the problems of safety design, high-efficiency transmission and the like under the condition of high power.

Patent document CN112448245A discloses a light and small shielding bus bar for airborne radar and a manufacturing method thereof, the light and small shielding bus bar of the radar comprises a cover plate, a bus bar, an insulator, a shell, a plurality of pairs of input leads and a plurality of pairs of output leads, wherein the bus bar is provided with second through holes which are in one-to-one correspondence with the positions of the first through holes on the cover plate, the insulator is provided with a groove, the bus bar is embedded in the groove of the insulator, the input leads sequentially pass through the first through holes on the cover plate and the second through holes on the bus bar, the input leads are electrically connected with the bus bar, the output leads sequentially pass through the second through holes on the bus bar and the first through holes on the cover plate, the output leads are electrically connected with the bus bar, the insulator is embedded in the shell, the cover plate is fixedly connected with an opening surface of the shell, the technical scheme disclosed by the patent document solves the problems of space and weight limitation of power supply wiring of an airborne radar system.

The radar front DAM (digital array module) power supply sometimes needs high voltage and high power, such as 500V high voltage and high power, and is usually realized by a thicker insulated power cable. However, the routing space of the radar array surface is usually small, the routing cannot be achieved by engineering by adopting a conventional cable mode, and the structure of the bus bar cannot achieve 500V high-voltage high-power transmission. Under all this kind of applied scenes, the problem that needs to solve is that the section will satisfy the line space requirement for a short time, and length will be enough to cover whole row skeleton space, and personal safety is guaranteed to insulating nature will be good, and equipment safety is guaranteed to the thermal diffusivity will be good.

Disclosure of Invention

The technical problem to be solved by the invention is how to realize the high-voltage and high-power supply requirement of the DAM with the high integration level of the active phased array radar.

The invention solves the technical problems through the following technical means: the utility model provides a high-power radar front bus bar device, including insulator (1), 500V + busbar (2), 500V-busbar (3), fixing device (4), both ends are sealed around insulator (1), two-layer groove (12) of running through around and left and right sides are seted up to the centre, 500V + busbar (2) and 500V-busbar (3) are placed respectively in two-layer groove (12), fixing device (4) are together fixed with 500V + busbar (2), 500V-busbar (3) and insulator (1), the rated current of every 500V + busbar (2) or 500V-busbar (3) is 300A, rated voltage is DC 500V.

Through this kind of design to satisfy and walk the line space requirement, length is enough, covers whole skeleton space that is listed as, insulating nature is good, guarantees personal safety, and good heat dissipation guarantees equipment safety.

As an optimized technical scheme, a plurality of 500V-bus bars (3) are placed in a groove (12) on the upper layer of an insulator (1), a plurality of 500V + bus bars (2) are placed in a groove (12) on the lower layer of the insulator (1), and leading-out end mounting terminals of the 500V + bus bars (2) and the 500V-bus bars (3) are placed at left and right intervals.

As an optimized technical scheme, a positive leading-out end (22) of a 500V + bus bar (2) and a main structure of the 500V + bus bar (2) are positioned on the same plane, a negative leading-out end (322) of the 500V-bus bar (3) is bent downwards, namely, a first plane (322) extends out of the main body of the 500V-bus bar (3), the front end of the first plane (322) is vertically bent downwards to form a bent surface (324), the lower end of the bent surface (324) is bent forwards to form a negative leading-out end (322), and the negative leading-out end (322) and the positive leading-out end (22) of the 500V + bus bar (2) are positioned on the same plane.

As an optimized technical scheme, the bending positions of the first plane (322) and the bending plane (324) and the negative electrode leading-out end (322) are designed to be fillets, the thicknesses of the first plane (322), the bending plane (324) and the negative electrode leading-out end (322) are the same, and the fillet is 1 time of the thickness of the plate.

As an optimized technical scheme, the insulation distance between the upper part and the lower part of the 500V + bus bar (2) and the 500V-bus bar (3) is 6mm, the air insulation distance between the leading-out ends of the 500V + bus bar (2) and the 500V-bus bar (3) is 20mm, namely the distance between the leading-out ends of the 500V + bus bar (2) and the 500V-bus bar (3) and the adjacent conductor is 20 mm.

As an optimized technical scheme, the fixing device (4) comprises a fixing clamp (42) and a fixing lower plate (46), the fixing clamp (42) comprises a top plate (422) and side plates (424) formed by bending the two ends of the top plate (422) downwards, the bottom ends of the side plates (424) at the two sides respectively extend outwards to form two fixing upper plates (426), at least 2 through holes are formed in the fixing upper plates (426), the top plate (422) and the two side plates (424) just wrap the top end and the left and right sides of the insulator (1), the height of the two side plates (424) is equal to or slightly smaller than the height of the insulator (1) at the position needing to be fixed, the fixing lower plate (46) is placed at the bottom of the insulator (1) and extends out of the left and right sides of the insulator (1), through holes or screw holes are formed in the parts extending out of the left and right sides of the insulator (1) corresponding to the through holes of the fixing plate (426), and the through holes of the fixing upper plate (426) and the screw holes of the fixing lower plate (46) are screwed in, the 500V + bus bar (2) and the 500V-bus bar (3) are fixed in the insulator (1), and the whole high-power radar array plane bus bar device is fixed on the antenna framework through the screw passing through the through hole of the fixed upper plate (426), the through hole of the fixed lower plate (46) and the through hole on the antenna framework and the matching of nuts.

As an optimized technical scheme, the high-power radar front bus bar device further comprises a limiting block (5) which is positioned between the two side plates (424) of the fixing clamp (42) and the left side surface and the right side surface of the insulator (1), one surface, facing the side plates (424), of the limiting block (5) is provided with a limiting groove, and the width of the limiting groove can just accommodate the side plates (424);

still include clamp plate (6), be located between roof (422) of fixation clamp (42) and the top surface of insulator (1), spacing groove has been seted up towards the one side of roof (422) in clamp plate (6), and the width of spacing groove can hold roof (422) just.

As an optimized technical scheme, the whole high-power radar front bus bar device is designed in a sectional mode and divided into 3 sections, the sections are connected through a hoop (100), wherein the 500V + bus bar (2) and the 500V-bus bar (3) are divided into three sections, butt joints of the sections are connected through friction stir welding, the insulator (1) is divided into three sections, and the sections are connected through the hoop (100).

As an optimized technical scheme, the clamp (100) comprises an upper clamping block (102), a lower clamping block (104) and a screw piece (106), wherein the upper clamping block (102) is of an inverted U-shaped structure, the lower clamping block (104) is of a U-shaped structure corresponding to the upper clamping block (102), the upper clamping block (102) and the lower clamping block (104) are connected through the screw piece (106) to clamp the insulator (1), the left side and the right side of the lower clamping block (104) are respectively provided with two fixing holes (1042), the insulators (1) at the two sides of the subsection of the insulator (1) are correspondingly provided with through holes, and the screw piece (106) is sequentially screwed into the fixing hole (1042) at one side of the lower clamping block (104), the through hole corresponding to the insulator (1), and the fixing hole (1042) at the other side of the lower clamping block (104), so that the insulator (1) and the clamp (100) are fixed together.

As an optimized technical scheme, a 500V + bus bar (2) and a 500V-bus bar (3) of a 500V high-power radar array surface bus bar device respectively extend out of 8 groups of input ends, wherein 1 group is input, 7 groups are output, the input ends of the 500V + bus bar (2) and the 500V-bus bar (3) are connected into a group of terminals, each leading-out end is provided with 3 fixing holes, and one terminal can be respectively installed on two sides of each fixing hole.

The invention has the advantages that: the bus bar has a small section, thereby meeting the wiring space requirement, has enough length, covers the whole column framework space, has good insulation property, ensures personal safety, has good heat dissipation property and ensures equipment safety.

Through three special processes, the high-power radar array surface bus bar device is slender in appearance: the length is close to 4 meters, the rated voltage is high: DC500V, high rated current: 300A, the insulating protection requires highly, and this special bus bar device satisfies the power supply demand of special scene, and through verifying, the result of use is good in actual equipment.

Drawings

FIG. 1 is a schematic structural diagram of a high power radar front bus bar arrangement in an embodiment of the invention, showing the output end of the bus bar exit;

FIG. 2 is a schematic view of an embodiment of the present invention from an opposite perspective to that of FIG. 1, showing the input end of the bus bar terminal;

FIG. 3 is a schematic view of a section of a high power radar front bar arrangement in an embodiment of the invention, wherein the end fixing means is shown exploded;

FIG. 4 is a schematic diagram of the overall structure of a segmented high power radar front bus bar arrangement in an embodiment of the present invention;

FIGS. 5 and 6 are schematic views showing insulation intervals of respective portions of a bus bar in the embodiment of the present invention;

FIG. 7 is a structural view of a 500V + bus bar in the embodiment of the present invention;

FIG. 8 is a structural view of a 500V-bus bar in the embodiment of the present invention;

FIG. 9 is a schematic view of an insulator and clip configuration of a segmented high power radar front bus bar arrangement in accordance with an embodiment of the present invention;

FIG. 10 is a schematic view of a partial segment of a segmented high power radar front bus bar arrangement according to an embodiment of the present invention, wherein the yoke is shown exploded;

FIG. 11 shows an embodiment of the present invention with 500V bus bar input;

FIG. 12 shows the 500V bus bar output according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1 to 3, a high power radar front bus bar device of the present invention includes an insulator 1, 500V + bus bars 2, 500V-bus bars 3, and a fixing device 4, wherein each 500V + bus bar 2 or 500V-bus bar 3 has a rated current of 300A.

The front and rear ends of the insulator 1 are closed, and two layers of grooves 12 penetrating through the front and rear and the left and right are formed in the middle of the insulator.

The 500V + bus bars 2 and the 500V-bus bars 3 are respectively placed in the two-layer grooves 12, and in this embodiment, a plurality of 500V-bus bars 3 are placed in the grooves 12 located at the upper layer of the insulator 1, and a plurality of 500V + bus bars 2 are placed in the grooves 12 located at the lower layer of the insulator 1, as shown in fig. 4, the outlet mounting terminals of the 500V + bus bars 2 and the 500V-bus bars 3 are placed at intervals from left to right. In order to meet the requirements of 500V bus bar insulation and voltage resistance, as shown in FIG. 5, the insulation distance between the 500V + bus bar 2 and the 500V-bus bar 3 is 6mm, namely, the distance between the 500V + bus bar 2 and the 500V-bus bar 3 is 6mm, as shown in FIG. 6, the leading end air insulation distance between the 500V + bus bar 2 and the 500V-bus bar 3 is 20mm, namely, the leading end of the 500V + bus bar 2 and the 500V-bus bar 3 is 20mm away from the adjacent conductor, so that the requirements of the 500V bus bar on insulation and voltage resistance are met. The fixture 4 shown in fig. 6 is a conductor, and therefore, the distance between the adjacent 500V + bus bar 2 and 500V-bus bar 3 is 20mm, and the distance between the 500V-bus bar 3 and the fixture 4 is 20mm, and similarly, the distance between the 500V + bus bar 2 and the fixture 4 is 20 mm.

As shown in fig. 7 and 8, the structure diagrams of the 500V + bus bar 2 and the 500V-bus bar 3 are respectively, the 500V + bus bar 2 is a flat plate structure as a whole, the leading-out end 22 of the 500V + bus bar 2 and the main structure of the 500V + bus bar 2 are in a plane, a screw head and a nut can extend out after the cold pressing of the bus bar leading-out end, the leading-out end 32 of the 500V-bus bar 3 is bent downwards in consideration of the insulation and voltage resistance requirements between a terminal mounting screw and a frame and a DAM case, that is, a first plane 322 extends out from the main body of the 500V-bus bar 3, the front end of the first plane 322 is vertically bent downwards to form a bending surface 324, the leading-out end 32 is bent forwards along the lower end of the bending surface 324, in order to ensure that no crack is generated at the bending position, the bending is designed as an inner fillet, that is the bending positions of the first plane 322 and the bending surface 324 and the leading-out end 32 are designed as inner fillets, the thicknesses of the first plane 322, the bending plane 324 and the leading-out end 32 are the same, the leading-out end 32 and the leading-out end 22 of the 500V + bus bar 2 are located on the same plane through bending, as shown in fig. 5, the distances between the upper surface and the lower surface of the framework of the whole high-power radar front plane bus bar device and the distances between the upper surface and the lower surface of the framework of the whole high-power radar front plane bus bar device are respectively 6.4mm and 9.2mm after the cold-pressed terminals are installed on the 500V + bus bar 2 and the 500V-bus bar 3, and the requirements for insulation and voltage resistance between the terminal fixing screw and the framework are met.

The fixing device 4 is used for fixing the 500V + bus bar 2, the 500V-bus bar 3 and the insulator 1 and fixing the whole high-power radar array plane bus bar device on the antenna framework, referring to fig. 3, the fixing device 4 comprises a fixing clamp 42 and a fixing lower plate 46, the fixing clamp 42 is of a plate-shaped structure and comprises a top plate 422 and side plates 424 bent downwards along two ends of the top plate 422, the bottom ends of the side plates 424 on two sides respectively extend outwards to form two fixing upper plates 426, and at least 2 through holes are formed in the fixing upper plates 426. The top plate 422 and the two side plates 424 are just wrapped on the top end and the left and right sides of the insulator 1, the height of the two side plates 424 is equal to or slightly less than the height of the insulator 1 to be fixed, the fixed lower plate 46 is placed at the bottom of the insulator 1 and extends out of the left and right sides of the insulator 1, through holes or screw holes are formed in the parts of the fixed lower plate 426, which extend out of the left and right sides of the insulator 1, through holes or screw holes are formed in the through holes corresponding to the fixed lower plate 426, the fixed upper plate 426 and the fixed lower plate 46 are screwed in through screws, so that the 500V + bus bar 2 and the 500V-bus bar 3 are fixed in the insulator 1, the screws penetrate through holes of the fixed upper plate 426, the through holes of the fixed lower plate 46 and the through holes in the antenna framework, and are matched with nuts, so that the whole high-power radar array plane bus bar device is fixed on the antenna framework.

In order to ensure the fixed position of the lower fixing plate 46, the lower fixing plate 46 is provided with a positioning groove 14 at the bottom of the insulator 1 above the lower fixing plate 46, and the depth of the positioning groove 14 is the same as the thickness of the lower fixing plate 46.

The fixing clip 42 is made of a metal material (such as stainless steel, 5a 06O state aluminum alloy or 6 series aluminum alloy, etc.) with good bending performance, and the strength and rigidity of the fixing device 4 are ensured by the design.

In order to ensure that the bus bar cannot be separated from the groove 12 of the insulator 1, a limiting block 5 is designed, the limiting block 5 is positioned between two side plates 424 of the fixing clamp 42 and the left side surface and the right side surface of the insulator 1 to limit the bus bar, and an epoxy glass plate is selected as the material of the limiting block 5. The contact surface of stopper 5 and fixation clamp 42 also carries on spacingly through the spacing groove, and the spacing groove has been seted up towards the one side of curb plate 424 to stopper 5 promptly, and the width of spacing groove can hold curb plate 424 just. In order to ensure that the fixing clamp 42 is in good contact with the insulator 1, the pressing plate 6 is designed, the pressing plate 6 is located between the top plate 422 of the fixing clamp 42 and the top surface of the insulator 1, the pressing plate 6 and the fixing clamp 42 are limited by the limiting groove, namely, the limiting groove is formed in one surface, facing the top plate 422, of the pressing plate 6, and the top plate 422 can be just accommodated in the width of the limiting groove. Through the design of the limiting block 5, the relative positions of the fixing plate 46, the fixing clamp 42, the limiting block 5, the bus bar and the insulator 1 are ensured, and the position accuracy of the mounting hole of the bus bar device of the high-power radar array surface is also met.

The two ends of the insulator 1 are respectively provided with a fixing device 4, and at least one group of fixing devices 4 is added in the middle of the insulator 1, so that the positions of the bus bars in the insulator groove 1 can be ensured to be unchanged.

Five surfaces of the main body part of the bus bar device with the high-power radar array surface can be insulated through the insulator 1, but one side of the leading-out terminal is still contacted with air, so that the heat dissipation requirement of the bus bar device is comprehensively considered in order to meet the insulation protection requirement of the main body part of the bus bar device, and the device is encapsulated. GRE6128 epoxy pouring sealant is selected as the pouring material, and the main performance parameters are shown in Table 1.

TABLE 1 GRE6128 epoxy pouring sealant main performance parameter table

Serial number	Performance designation	Test value (numerical value)
			1	Tensile strength MPa	15
2	Hardness HA	80
			3	Volume resistivity omega cm	1×1013
4	Dielectric constant (1MHz)	4.8
			5	Breakdown strength KV/mm	26
6	Thermal conductivity W/(m.K)	0.6
			7	Working temperature range (. degree.C.)	-50～120

Each 500V + bus bar 2 or 500V-bus bar 3 is designed to have a rated current of 300A, and the material is cold-rolled pure copper plate T2(Y), which has high electrical conductivity, thermal conductivity and special physical and corrosion resistance, is commonly used for manufacturing conductive parts and parts requiring excellent thermal conductivity and corrosion resistance.

The bus bar layers are electrically isolated from one another by polytetrafluoroethylene insulators, the conducting layers (500V + bus bars or 500V-bus bars) and the insulating layers (polytetrafluoroethylene insulation) are made into a whole by a laminated busbar process, opposite currents flow through adjacent conducting layers due to the proximity effect, magnetic fields of products of the conducting layers and the insulating layers offset one another, distributed inductance in a circuit is greatly reduced, and in addition, due to the flat appearance characteristic, the heat dissipation area of the circuit is greatly increased, so that the improvement of current-carrying capacity is facilitated.

According to the requirements of the service environment of the bus bar, polytetrafluoroethylene is selected as an insulating shell of the bus bar, and the polytetrafluoroethylene mainly has the following advantages:

a) high temperature resistance, and the use temperature can reach 250 ℃ at most;

b) low temperature resistance, good mechanical toughness, and good toughness maintained even at-190 ℃;

c) corrosion resistance, inertia to most chemicals and solvents, acid-base water resistance and various organic solvents resistance;

d) electrical insulation, which can resist 1500V high voltage;

e) aging resistance, irradiation resistance and low permeability, and the surface and performance of the material remain unchanged after long-term exposure to the atmosphere.

In this embodiment, the bus bar device with the high-power radar array surface adopts the structural style of the laminated busbar, the 500V + bus bar 2 and the 500V-bus bar 3 are positioned in the groove 12 of the insulator 1, the 500V + bus bar 2 and the 500V-bus bar 3 are limited through the limiting block 5 and are fixed through the fixing device 4 and the pressing plate 6, and after the assembly, the filling and sealing treatment is carried out, so that the electric insulation property is ensured, and the requirement of the environment adaptability of the internal bus bar is improved.

Example two

The difference between this embodiment and the first embodiment is that, referring to fig. 4, the whole high-power radar front bus bar device is of a segmented design, in this embodiment, the bus bar device is divided into 3 segments, the bus bar conductor segments are connected by friction stir welding, and the insulator segments are connected by clips 100.

Referring to fig. 9 and 10, in order to meet the power distribution requirement of the ultra-long front, the 500V + bus bar 2 and the 500V-bus bar 3 are also designed into three sections, and the butt joints between the sections are connected through friction stir welding, so that the connection strength is ensured. Friction stir welding is mainly used for nonferrous metals with low melting temperature, such as alloys of aluminum, copper and the like, is widely applied to the industrial fields of aviation, spaceflight, ships, automobiles, electric power, electronics and the like in China at present, and has high reliability.

In fig. 9 and 10, the total length of the insulator of the 500V high power radar front bus bar arrangement is 3958 mm. The integral forming has high requirements on equipment, so that the insulator 1 is designed into three sections, each section is connected through the hoop 100, and each section is processed respectively, so that the processing efficiency can be improved, and the requirements on the equipment are reduced.

Referring to fig. 10, the clip 100 includes an upper clip block 102, a lower clip block 104, and a screw 106, the upper clip block 102 is in an inverted U-shaped structure, the lower clip block 104 is in a U-shaped structure corresponding to the upper clip block 102, the upper clip block 102 and the lower clip block 104 are connected by the screw 106 to clip the insulator 1, the screw can be screwed into the through hole and the screw hole as shown in fig. 10, or can be connected by a screw-nut fit method, in order to further prevent the insulator 1 from moving back and forth to cause looseness, two fixing holes 1042 are respectively formed at the left and right sides of the lower clip block 104, through holes are correspondingly formed at the insulators 1 at the two sides of the insulator 1 at the section, the fixing holes 1042 at one side of the lower clip block 104, the through hole corresponding to the insulator 1, and the fixing hole 1042 at the other side of the lower clip block 104 are sequentially screwed by the screw 106 to fix the insulator 1 and the clip 100 together, preventing the insulator 1 from being displaced up and down and preventing the insulator 1 from moving back and forth.

In the sectional structure form of the insulator 1, in order to ensure the continuity of the insulating property of the insulator 1, the process design is to coat G0-1700-1 silicon rubber with excellent insulating property on the splicing surface of the insulator 1 (the main parameters are shown in Table 2).

TABLE 2G 0-1700-1 Silicone rubber Main Performance parameter Table

Serial number	Performance designation	Test value
			1	Surface drying time min	5
2	Shore hardness A	45
			3	Tensile strength at break MPa	2
4	Volume resistance omega cm	5*1014
			5	Flame retardant rating	V0
6	Working temperature (. degree.C.)	-60～200
			7	Breakdown strength KV/mm	18

Regarding the design of the electrical interface:

the 500V + bus bar 2 and the 500V-bus bar 3 of the 500V high-power radar front plane bus bar device respectively extend out of 8 groups of input terminals, wherein 1 group is input, and 7 groups are output, and the figure 4 shows. The input end is connected with a group of terminals. Considering that each connecting hole is provided with at most two terminals, fig. 11 shows a bus bar input end, fig. 12 shows a bus bar output end, each leading-out end of the 500V + bus bar 2 and the 500V-bus bar 3 is provided with 3 fixing holes, and two sides of each fixing hole can be respectively provided with one terminal, so that the function of simultaneously meeting the access of 6 terminals to realize power transmission of multiple groups of array surface equipment can be realized. The bus bar voltage is 500V, thus printing a "500V hazard" at each set of outputs and inputs.

Through the three-stage special process of the embodiment, the high-power radar front plane bus bar device is slender in shape: the length is close to 4 meters, the rated voltage is high: DC500V, high rated current: 300A, the insulating protection requires highly, and this special bus bar device satisfies the power supply demand of special scene, and through verifying, the result of use is good in actual equipment.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.