CN109637331B - Large-scale solar simulator horizontal ignition lamp unit array and arrangement and support method thereof - Google Patents
Large-scale solar simulator horizontal ignition lamp unit array and arrangement and support method thereof Download PDFInfo
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- CN109637331B CN109637331B CN201910001376.7A CN201910001376A CN109637331B CN 109637331 B CN109637331 B CN 109637331B CN 201910001376 A CN201910001376 A CN 201910001376A CN 109637331 B CN109637331 B CN 109637331B
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Abstract
The invention discloses a horizontal ignition lamp unit array of a large-scale solar simulator and an arrangement and support method thereof, wherein the horizontal ignition lamp unit array of the large-scale solar simulator consists of a ball socket and a plurality of lamp units, the lamp units are fixed in the ball socket through a lamp unit support mechanism, a plurality of condenser lens mounting surfaces are uniformly arranged in the ball socket, the condenser lens mounting surfaces are planes, and the vertical distances from all the condenser lens mounting surfaces to the ball center of the ball socket are equal; a plurality of light through holes are distributed on the ball sealing head at equal intervals, and the central lines of all the light through holes are perpendicular to the condenser lens mounting surface and are converged at one point, namely the center of the ball, so that the problems of arrangement, positioning, supporting, mutual noninterference and the like of the horizontal ignition lamp unit array of the large-scale solar simulator are solved, and the safe and reliable operation of the large-scale solar simulator is ensured.
Description
Technical Field
The invention belongs to the technical field of space environment simulation, and particularly relates to an arrangement and support method for a horizontal ignition lamp unit array of a simulated space solar simulator.
Background
When the spacecraft runs in space, the severe space environment poses a great threat to the normal work of the spacecraft. The influence of the solar irradiation environment, the cold black environment and the vacuum environment is the most serious, and the thermal performance, the electrical performance, the mechanical performance and the effective load performance of the spacecraft are influenced, wherein the influence of the solar irradiation is the largest. The solar simulator can simulate the collimation, the space irradiation uniformity and the spectral characteristics of solar irradiation, and has high simulation precision. Therefore, with the development of the aerospace industry, the demand for large-caliber solar simulators and high-irradiation solar simulators is increasing, and the design of using several or even dozens of lamp unit arrays is also increasing.
The KM6 solar simulator is a project of development and guarantee conditions in the third month of exploring, is an off-axis collimation type solar simulator which is equipped on a KM6 space environment simulator and has the irradiation surface with the diameter of 5000mm, horizontally ignited xenon lamps and horizontally incident, and is the first large-scale solar simulator which applies dozens of lamp units in China. In the aspect of the arrangement of the lamp units of the solar simulator, the technical problem to be solved by the invention is how to realize the arrangement and support of the lamp unit arrays to simultaneously meet the requirements of supporting the xenon lamp, supporting the condensing lens and supporting the xenon lamp, and ensure that light emitted by the xenon lamp is converged in the light-passing caliber of the integrator after being reflected by the condensing lens without mutual interference among the arrays so as to ensure the safe and reliable operation of the large-scale solar simulator.
The lamp units are arranged and comprise a xenon lamp horizontal ignition mode and a xenon lamp vertical ignition mode. If a xenon lamp is used to ignite the horizontal incidence vertically, a mirror must be added to reflect the vertical beam into a horizontal beam, adding cost and complexity to the device. If the xenon lamp is ignited horizontally, the distance between the lamp units is too small, which causes mutual interference between the lamp units, and if the distance between the lamp units is too large, the size of the ball sealing head is too large, the weight is too heavy, and the cost and the construction difficulty are increased.
The lamp unit array disclosed in the prior art is not effectively optimized, the specific arrangement mode cannot accurately guarantee the interference between the lamps, the lamp unit array is effectively optimized at this time, the distance between the lamp units is determined (wherein, the distance between the condensing lenses does not refer to the central distance of the condensing lenses but refers to the distance between the large-end opening edges of the condensing lenses due to the influence of the sizes of the condensing lenses), and the coordinates of the centers of the lamp units are specifically defined, so that the lamp units are independently supported, independently disassembled and assembled and do not interfere with each other, and the diameter of the spherical end socket is not too large, the weight is too heavy, and extra cost and burden are caused.
Disclosure of Invention
The invention aims to provide a horizontal ignition lamp unit array of a large-scale solar simulator and an arrangement and support method thereof, which solve the problems of arrangement, positioning, support, mutual noninterference and the like of the horizontal ignition lamp unit array of the large-scale solar simulator and ensure the safe and reliable operation of the large-scale solar simulator.
In order to achieve the purpose, the invention adopts the following technical scheme:
the horizontal ignition lamp unit array of the large-scale solar simulator comprises a ball socket and a plurality of lamp units, wherein the lamp units are fixed in the ball socket through a lamp unit supporting mechanism and comprise an anode terminal, a condenser, a xenon lamp, a three-dimensional adjusting mechanism, a Z-shaped support, a cathode support and an anode support, wherein the anode terminal is electrically connected with an anode of the xenon lamp, the xenon lamp is fixed in the middle of the condenser, the anode in the xenon lamp is fixedly connected on the anode support, the cathode in the xenon lamp, which is arranged opposite to the anode, is supported on the cathode support, the top of the three-dimensional adjusting mechanism is supported with a first horizontal plane at one side of the Z-shaped support, the first horizontal plane is fixedly provided with the cathode support through a vertical rod, a second horizontal plane at the other side of the Z-shaped support is fixedly provided with the anode support, and the lamp unit supporting mechanism is of a frame structure, four support rods penetrate through the condenser lens and are fixed on the ball sealing head, and the bottom surface of a frame of the support structure is in threaded connection with a fixed plate of the three-dimensional adjusting mechanism so as to install the three-dimensional adjusting mechanism; the three-dimensional adjusting mechanism can adjust the three-dimensional direction and drive the xenon lamp to move in a three-dimensional position;
the method is characterized in that: a plurality of collecting lens mounting surfaces are uniformly arranged in the ball end socket, the collecting lens mounting surfaces are planes, and the vertical distances from all the collecting lens mounting surfaces to the ball center of the ball end socket are equal; a plurality of light through holes are distributed on the ball sealing head at equal intervals, and the central lines of all the light through holes are perpendicular to the condenser lens mounting surface and converged at one point, namely the center of the ball.
Further, the six sides of the condenser lens are chamfered to define the outer contour of the condenser lens within a regular hexagon, so that the interval between the condenser lenses in all the arrangements is reduced to 30 mm.
Further, the height of the regular hexagon is 480 mm.
Wherein, the centre of a plurality of condensing lens installation faces is a lamp unit, and the second circle lamp unit that uses it as the centre of a circle is 6, and the analogize expands outwards in proper order, and every lamp unit equals with adjacent lamp unit's interval, all is 30 mm.
The coordinate definition of the central point of each condenser lens installation surface is as follows: a sphere center O of the spherical end socket is used as a coordinate origin, and a connecting line of a central point O1 of the mounting surface of the central condenser lens and the sphere center O is used as a Z axis to establish a three-dimensional coordinate system as follows.
In the formula:
l is the distance from the center point M of the mounting surface of the ith condenser to the center point O1 of the mounting surface of the central condenser;
f is the vertical distance from the point O of the sphere center to the mounting surface of the ith condenser lens;
φithe projection of the central point M of the mounting surface of the ith condenser ON the XY plane is N, and the included angle between ON and the X axis. Thus, (f, θ)i,φi) The arrangement coordinates of the lamp units on the ball seal are defined, and the arrangement method of the lamp units is determined.
Wherein, when the total number of the condenser lenses is 37, the vertical distance f from the installation surface of each condenser lens to the sphere center is 6799mm, and thetai,φiAs shown in the following table:
the horizontal ignition lamp unit includes a xenon lamp, a condenser lens, and a xenon lamp adjusting mechanism (mentioned in the patent application No. 2013106311368). The lamp unit comprises an anode wiring terminal, a condenser lens, a xenon lamp, a three-dimensional adjusting mechanism, a Z-shaped support, a cathode support and an anode support, wherein the cathode support and the anode support are respectively arranged at two ends of the Z-shaped support, and the xenon lamp is arranged between the cathode support and the anode support. A xenon lamp three-dimensional adjusting mechanism is installed below the Z-shaped support, and three-dimensional adjustment of the xenon lamp can be achieved through the three-dimensional adjusting mechanism.
The lamp unit supporting mechanism is of a frame structure, four supporting rods penetrate through the collecting lens and are fixed on the ball sealing head, and the bottom surface of the frame of the supporting structure is provided with a fixing plate of the three-dimensional adjusting mechanism and supports the xenon lamp and the three-dimensional adjusting mechanism of the xenon lamp.
The invention satisfactorily solves the problems of arrangement and support of a plurality of even dozens of lamp unit arrays of the large-scale solar simulator, and has the following advantages:
1. the device has the advantages of compact structure, high light-gathering efficiency and small occupied space;
2. each lamp unit is mutually independent, and the independent installation, the independent debugging, the independent maintenance and the like of each lamp unit are ensured;
3. the problems of light, machine and electricity of the solar simulator lamp unit are solved. Light refers to the problem of light condensation of a xenon lamp, mechanical refers to the problem of support and arrangement of a lamp unit, and electricity refers to the problem of power supply of the xenon lamp.
Drawings
FIG. 1a is a front view of a ball seal in a large solar simulator condenser array of the present invention;
FIG. 1b is a side view of a ball seal in a large solar simulator condenser array of the present invention;
fig. 2 is a schematic coordinate diagram of the central point of the condenser lens mounting surface.
FIG. 3a is a front view of a light unit configuration used in a large solar simulator condenser array of the present invention;
FIG. 3b is a side view of a light unit configuration used in a large solar simulator condenser array of the present invention;
FIG. 4a is a front view of a large solar simulator condenser array of the present invention;
FIG. 4b is a top view of a large solar simulator condenser array of the present invention;
wherein: 1. the device comprises an anode terminal, 2, a condenser lens, 3, a lamp unit supporting structure, 4, a xenon lamp, 5, a three-dimensional adjusting mechanism, 6, a Z-shaped bracket, 7, a ball sealing head, 41 and a ball sealing head; 42. a lamp unit.
FIG. 5a is a schematic diagram of a cross section of the edge of a collector in a large solar simulator collector array of the present invention forming a regular hexagon;
fig. 5b is a schematic diagram of the distribution of the holes in the condenser array of the large solar simulator condenser array of the present invention.
Detailed Description
The following is a description of the present invention, which is further illustrated by the following embodiments. The following detailed description, of course, is merely illustrative of various aspects of the invention and is not to be construed as limiting the scope of the invention. According to the optical design parameters of the solar simulator, the radius of the ball seal head, the opening diameter of the ball seal head, the diameter of the light through hole and the distance between the lamp units are determined, and the thickness of the ball seal head is determined according to the strength and rigidity analysis of the ball seal head. The ball end socket is used as the standard for installing the horizontal ignition lamp unit array, and the coordinates of the central point of the installation surface of each condenser lens are strictly defined. The ball sealing head meets the following requirements: firstly, all condenser lens mounting surfaces are planes, and the vertical distances from all the mounting surfaces to the center of a sphere are equal; the central lines of all the light through holes are vertical to the condenser lens mounting surface and converged at one point, namely the spherical center; and thirdly, all the light through holes are distributed at equal intervals.
Fig. 1a and 1b are a front view and a side view, respectively, of a ball seal in a large solar simulator collector array of the present invention. The spherical end socket is a large-caliber spherical end socket, is one of important parts in a condenser lens array, and bears a large number of lamp units. The ball sealing head has high precision and good rigidity, and ensures high-efficiency light condensation of a large number of lamp units.
Fig. 2 is a schematic diagram of coordinates of the center point of the condenser mounting surface, the coordinates of the center point of each condenser mounting surface defining: a sphere center O of the spherical end socket is used as a coordinate origin, and a connecting line of a central point O1 of the mounting surface of the central condenser lens and the sphere center O is used as a Z axis to establish a three-dimensional coordinate system as follows.
In the formula: l is the distance from the center point M of the mounting surface of the ith condenser to the center point O1 of the mounting surface of the central condenser; f-sphere center O to ith spotlightThe vertical distance of the mirror mounting surface; phi is aiThe projection of the central point M of the mounting surface of the ith condenser ON the XY plane is N, and the included angle between ON and the X axis. Thus, (f, θ)i,φi) The arrangement coordinates of the lamp units on the ball seal are defined, and the arrangement method of the lamp units is determined.
Wherein, in a preferred embodiment, the device comprises 37 collecting mirrors, the vertical distance f from the mounting surface of each collecting mirror to the sphere center is 6799mm, and thetai,φiAs shown in the following table:
fig. 3a and 3b are front and side views, respectively, of a lamp unit structure used in a large solar simulator condenser array of the present invention, the lamp unit structure including: the xenon lamp comprises an anode terminal 1, a condenser 2, a lamp unit supporting mechanism 3, a xenon lamp 4, a three-dimensional adjusting mechanism 5, a Z-shaped bracket 6, a cathode support, an anode support and the like, wherein the anode terminal 1 is electrically connected with an anode of the xenon lamp 4, the xenon lamp 4 is fixed in the middle of the condenser 2, the anode of the xenon lamp 4 is fixedly connected with the anode support, the cathode of the xenon lamp 4, which is arranged opposite to the anode, is supported on the cathode support, the top of the three-dimensional adjusting mechanism 5 is supported with a horizontal plane I on one side of the Z-shaped bracket 6, the horizontal plane I is fixedly provided with the cathode support through a vertical rod, the horizontal plane II on the other side of the Z-shaped bracket 6 is fixedly provided with the anode support, the lamp unit supporting mechanism is of a frame structure, four supporting rods penetrate through the condenser 2 to be fixed on a ball seal head, the bottom surface of the frame of the supporting structure is screwed with a fixing plate of the three-dimensional adjusting mechanism 5 to install the three-dimensional adjusting mechanism 5, the three-dimensional adjusting mechanism 5 can adjust in a three-dimensional direction and drive the anode, the cathode and the xenon lamp to move in a three-dimensional position.
The xenon lamp horizontal ignition lamp unit support structure is of a frame type, as shown in fig. 3 a. Simultaneously four angle departments spiro union have 4 long screw rods, 4 mounting holes and the ball head on 4 mounting holes position coincidence on 4 long screw rod's the position and the condensing lens, the purpose of design like this when installing lamp unit bearing structure on the ball head, has consolidated the installation of condensing lens on the ball head. The bottom surface of the frame type supporting structure is provided with an installation plate for installing a three-dimensional adjusting mechanism of the xenon lamp.
Fig. 4a and 4b are front and top views of a large solar simulator condenser array of the present invention. The large solar simulator condenser array is composed of a ball seal head 41 and more than 37 lamp units 42, and the more than 37 lamp units 42 are fixed on the ball seal head 41. Each lamp unit is fixed on the ball sealing head 42 through 2 bolts, 4 supporting rods and 6 nuts, wherein the adjusting mechanism, the condenser lens and the ball sealing head of the lamp unit are fixed together through the 4 supporting rods and the 2 nuts. The condensing lens array of the large-scale solar simulator effectively solves the problems of high-efficiency condensation, positioning, adjustment, cooling and the like of a high-power xenon lamp, and ensures the safe and reliable operation of the condensing lens array of the large-scale solar simulator. In order to efficiently condense light of a large solar simulator condenser array, the surface type, structure, ball seal and the like of the condenser are also required to be optimally designed.
Referring to fig. 5a, fig. 5a shows a schematic view of the edge cross-section of the concentrator in the large solar simulator concentrator array of the present invention forming a regular hexagon; as can be seen, the mounting surface of the condenser lens is in the shape of a ring with an outer diameter of 506mm and an inner diameter of 460mm, and the single-sided radial dimension of the ring is 23 mm. If the collecting lenses are arranged side by side, the distance between the collecting lenses is 46mm, and considering the distance of 46mm, the size and weight of the ball sealing head are increased. Therefore, the six sides of the condenser lens are chamfered, and the outer contour of the condenser lens is defined within a regular hexagon with a height of 480mm, so that the interval between the condenser lenses can be reduced to 30 mm. Not only ensures the installation space, but also does not interfere with each other. According to design experience, 30mm is the minimum distance between the condensing lenses when the lamp units are arranged in an array. If less than 30mm, mutual interference between the lamp units may be caused.
Fig. 5b is a schematic distribution diagram of the holes in the collecting mirror array of the large solar simulator according to the present invention. The middle lamp unit is 6, the 2 nd circle is analogized in turn, and the distance between each lamp unit and the adjacent lamp unit is equal and is 30 mm. Specifically, the arrangement of a plurality of central lamp units is explained, a hole with the diameter of 460mm is a light through hole, a hole with the diameter of 40mm is a wall through hole of the anode terminal 1, a square hole with the diameter of 62mmX25mm is a wall through hole of the Z-shaped bracket 6, and 6 holes with the diameter of 11mm are installation holes of the condenser and the lamp unit supporting structure.
When the xenon lamp adjusting mechanism is installed, the collecting lens is firstly installed on the collecting lens installation surface of the ball seal head and is fixed by an upper bolt and a lower bolt, and then the frame type lamp unit supporting structure provided with the xenon lamp adjusting mechanism is installed on the ball seal head. The lamp unit support structure may serve several purposes: firstly, four long screws of the lamp unit supporting structure penetrate through a condenser lens mounting hole and then penetrate through a ball end socket mounting hole and are fastened by nuts. By utilizing the consistency of the 4 mounting holes on the collecting lens and the mounting holes on the ball sealing head, the lamp unit supporting structure is provided with a rooting part on the ball sealing head, and the collecting lens is reinforced. And the xenon lamp and the three-dimensional adjusting mechanism are arranged on the lamp unit supporting structure. The mounting of the individual lamp units is done by means of the lamp unit support structure, and then the support of all horizontally ignited lamp units is done in this manner.
The specific installation process comprises the following steps:
firstly, the central axis of the ball seal head is adjusted to coincide with the optical axis of the solar simulator system, and then the position of the ball seal head is fixed.
The embodiment of a single lamp unit is as follows:
1) the xenon lamp three-dimensional adjusting mechanism (the anode supporting rod is removed, and the anode supporting rod is installed after the lamp unit supporting structure and the ball sealing head are installed) is installed on the lamp unit supporting structure.
2) And a condenser lens is arranged on the ball sealing head, and the condenser lens and the ball sealing head are fixed by an upper bolt and a lower bolt.
3) 4 long screws of a lamp unit supporting structure provided with the xenon lamp three-dimensional adjusting mechanism sequentially penetrate through a collecting lens mounting hole and a ball sealing head mounting hole and are fastened by nuts.
4) And installing an anode support rod of the xenon lamp.
5) And (5) installing a xenon lamp.
The installation of a single lamp unit is completed in the above 5 steps, and the installation of the remaining lamp units is performed in this manner until the installation of all the lamp units is completed, and the installation of one array of lamp units is completed.
Although particular embodiments of the present invention have been described and illustrated in detail, it should be noted that various changes and modifications could be made to the above-described embodiments without departing from the spirit of the invention and the scope of the appended claims.
Claims (5)
1. The horizontal ignition lamp unit array of the large-scale solar simulator comprises a ball socket and a plurality of lamp units, wherein the lamp units are fixed in the ball socket through a lamp unit supporting mechanism and comprise an anode terminal, a condenser, a xenon lamp, a three-dimensional adjusting mechanism, a Z-shaped support, a cathode support and an anode support, wherein the anode terminal is electrically connected with an anode of the xenon lamp, the xenon lamp is fixed in the middle of the condenser, the anode in the xenon lamp is fixedly connected on the anode support, the cathode in the xenon lamp, which is arranged opposite to the anode, is supported on the cathode support, the top of the three-dimensional adjusting mechanism is supported with a first horizontal plane at one side of the Z-shaped support, the first horizontal plane is fixedly provided with the cathode support through a vertical rod, a second horizontal plane at the other side of the Z-shaped support is fixedly provided with the anode support, and the lamp unit supporting mechanism is of a frame structure, four support rods penetrate through the condenser lens and are fixed on the ball sealing head, and the bottom surface of a frame of the support structure is in threaded connection with a fixed plate of the three-dimensional adjusting mechanism so as to install the three-dimensional adjusting mechanism; the three-dimensional adjusting mechanism can adjust in three-dimensional directions and drive the xenon lamp to move in three-dimensional positions, the large-scale solar simulator is a KM6 solar simulator, and is an off-axis collimation type solar simulator which is equipped on a KM6 space environment simulator, has an irradiation surface with the diameter of 5000mm, is horizontally ignited by the xenon lamp and horizontally enters;
the method is characterized in that: a plurality of collecting lens mounting surfaces are uniformly arranged in the ball end socket, the collecting lens mounting surfaces are planes, and the vertical distances from all the collecting lens mounting surfaces to the ball center of the ball end socket are equal; a plurality of light through holes are distributed on the ball sealing head at equal intervals, and the central lines of all the light through holes are perpendicular to the condenser lens mounting surface and converged at one point, namely the center of the ball;
the coordinate definition of the central point of each condenser lens installation surface is as follows: taking the sphere center O of the spherical end socket as a coordinate origin, taking a connecting line of the central point O1 of the mounting surface of the central condenser lens and the sphere center O as a Z axis, and establishing a three-dimensional coordinate system as follows:
in the formula:
l is the distance from the center point M of the mounting surface of the ith condenser to the center point O1 of the mounting surface of the central condenser;
f is the vertical distance from the point O of the sphere center to the mounting surface of the ith condenser lens;
φithe projection of the central point M of the mounting surface of the ith condenser ON the XY plane is N, the included angle between ON and the X axis, (f, theta)i,φi) The arrangement coordinates of the lamp units on the ball seal head are defined;
wherein, the total number of the collecting lenses is 37, the vertical distance f from the installation surface of each collecting lens to the sphere center is 6799mm, and thetai,φiRespectively as follows:
2. the array of horizontally lighted lamp units for large solar simulators as claimed in claim 1, wherein six sides of the collecting lenses are chamfered to define the outer contour of the collecting lenses within a regular hexagon, so that the spacing between the collecting lenses in all the arrangements is reduced to 30 mm.
3. The large solar simulator horizontally burning light unit array as claimed in claim 1, wherein the height of the regular hexagon is 480 mm.
4. The horizontally lighted lamp unit array for a large solar simulator as defined in claim 1, wherein there is one lamp unit in the middle of the installation surface of the plurality of condensing lenses, 6 lamp units in the second circle around the center of the installation surface, and the like, and the distance between each lamp unit and the adjacent lamp unit is equal and is 30 mm.
5. A method of supporting a large solar simulator horizontal array of burning light units as claimed in any one of claims 1 to 4, comprising the steps of:
firstly, adjusting the central axis of the ball socket head to coincide with the optical axis of the solar simulator system, then fixing the position of the ball socket head, and then installing a single lamp unit, wherein the implementation mode of the single lamp unit is as follows:
1) firstly, removing an anode support rod, and installing a xenon lamp three-dimensional adjusting mechanism on a lamp unit support structure;
2) installing a condenser lens on the ball sealing head, and fixing the condenser lens and the ball sealing head by using an upper bolt and a lower bolt;
3) sequentially penetrating 4 long screws of a lamp unit supporting structure provided with a xenon lamp three-dimensional adjusting mechanism through a condenser lens mounting hole and a ball sealing head mounting hole, and fastening the long screws by nuts, wherein six sides of the condenser lens are subjected to edging treatment, and the outline of the condenser lens is defined in a regular hexagon, so that the distance between the condenser lenses in all arrangement is reduced to 30 mm;
4) installing an anode support rod of the xenon lamp;
5) installing a xenon lamp;
the installation of a single lamp unit is completed in the above 5 steps, and the installation of the remaining lamp units is performed in this manner until the installation of all the lamp units is completed, and the installation of one array of lamp units is completed.
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