CN210781629U - High spectral load electric cabinet system suitable for space environment - Google Patents
High spectral load electric cabinet system suitable for space environment Download PDFInfo
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- CN210781629U CN210781629U CN201921091568.3U CN201921091568U CN210781629U CN 210781629 U CN210781629 U CN 210781629U CN 201921091568 U CN201921091568 U CN 201921091568U CN 210781629 U CN210781629 U CN 210781629U
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Abstract
The utility model provides a high spectrum load electric cabinet system suitable for space environment solves current space electric cabinet bulky, the quality is heavier, electromagnetic shielding performance is poor, and the problem that the technology is complicated when changing circuit board components and parts or sheet frame structure in the electric cabinet cavity. The system comprises a box body, a control bus motherboard and a plurality of drawer type circuit units; one end of the box body is provided with a plurality of insertion holes from top to bottom, a control bus motherboard is arranged in the box body at the other end, and a connector is arranged on the control bus motherboard at a position corresponding to each insertion hole; the drawer type circuit unit is arranged between the insertion opening and the connector; the drawer type circuit unit comprises a fixed frame, a circuit board functional module arranged on the fixed frame, an electric connector and an electric connector, wherein the electric connector and the electric connector are arranged on the circuit board functional module; the circuit board functional module is connected with the connector through an electric connector, and is connected with external equipment through the electric connector; the fixed frame is connected with the inner walls of the two side plates of the box body through a sliding assembly.
Description
Technical Field
The utility model belongs to an electric cabinet, concretely relates to high spectrum load electric cabinet system suitable for space environment.
Background
In recent years, with the development of aerospace technology, the space optical load is more and more emphasized. In an optical load system, a corresponding circuit board is arranged through an electric cabinet to realize related photoelectric functions, and the electric cabinet with various styles and types exists according to different design states.
The electric cabinet of traditional space load adopts square box structure or range upon range of tandem structure form mostly, and the electric cabinet of this kind of structural style is bulky, the quality is heavier. The conventional electric cabinet adopts a single-cavity closed structure, the circuit board in the cavity is provided with an opening on the cavity wall, the installation is connected with the outside by the outer connector, the opening on the outer connector and the cavity wall is in small clearance fit, and the magnetic leakage phenomenon also exists in the outer connector, so that the closed cavity is not closed, and the electromagnetic shielding performance is poor. The external connector and the circuit board are generally connected in a flexible wire welding mode, the flexible wire needs to be desoldered when the circuit board is partially changed and disassembled when components or a plate frame structure of the circuit board is replaced, and the process is complex.
Because the space electric cabinet is subjected to a severe mechanical environment during launching and needs to be subjected to mechanical environments such as vibration, impact, overload and the like with larger magnitude in the rocket launching process, the design of the space electric cabinet not only needs to consider the requirements of structural strength, light weight, reliability, thermal environment adaptability, electromagnetic compatibility and the like, but also needs to fully consider the influence of the mechanical environment, and can meet the examination of a vibration environment test.
Due to the complexity of the space environment, various high-energy particles and space rays are easy to have adverse effects on the circuit board in the electric cabinet cavity of the optical load, especially on electronic components in the circuit board, so that various abnormal phenomena are caused. Meanwhile, the electric control box and other electric control equipment are easy to mutually cause electromagnetic interference, so that the electric control function is damaged.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem that the current space electric cabinet is bulky, the quality is heavier, electromagnetic shielding performance is poor, and the technology is complicated when changing circuit board components and parts or sheet frame structure in the electric cabinet cavity, the utility model provides a high spectrum load electric cabinet system suitable for space environment.
In order to achieve the above purpose, the utility model provides a technical scheme is:
a high spectral load electric cabinet system suitable for space environment, its special character lies in: the device comprises a box body, a control bus motherboard and a plurality of drawer type circuit units; a plurality of insertion holes are formed in one end of the box body from top to bottom, the control bus motherboard is arranged in the box body at the other end, and a connector is arranged on the control bus motherboard in a position opposite to each insertion hole; the drawer-type circuit units are matched with the insertion ports in number and are in one-to-one correspondence, and the drawer-type circuit units are arranged between the insertion ports and the connectors; the drawer type circuit unit comprises a fixed frame, a circuit board functional module, an electric connector and an electric connector; the circuit board functional module is arranged on the fixed frame, and the electric connector are arranged on the circuit board functional module; the circuit board functional module is connected with the connector through an electric connector, and is connected with external equipment through an electric connector; the fixed frame is connected with the inner walls of the two side plates of the box body through a sliding assembly.
Furthermore, each circuit board functional module is provided with an L-shaped heat dissipation plate, and the heat dissipation plate is made of T2 copper alloy.
Further, the fixed frame is made of 6061 hard aluminum alloy and comprises a left side plate, a right side plate, a front side plate and a rear side plate; threaded holes are formed in the left side plate and the right side plate, and after screws sequentially penetrate through the circuit board functional module and the threaded holes, the circuit board functional module is fixed on the fixed frame; the front side plate is provided with a mounting hole for mounting an electric connector.
Furthermore, two side plates of the box body are both plate-fin heat exchange structures.
Further, reinforcing ribs are arranged between the left side plate and the right side plate and between the front side plate and the rear side plate.
Furthermore, the circuit board function module is an analog quantity acquisition board assembly, a lower computer control board assembly, a calibration power supply control board assembly, a motion driving control board assembly or an imaging circuit power on/off control board assembly.
Further, the sliding assembly comprises linear guide rails respectively arranged on the outer walls of the left side plate and the right side plate, and guide grooves which are arranged on the inner walls of the two side plates of the box body and matched with the linear guide rails.
Further, the material of the linear guide rail is 6061 hard aluminum alloy.
Furthermore, a grounding pile is arranged on the box body and is made of T2 copper alloy; and carrying out surface gold plating treatment on the grounding pile.
Compared with the prior art, the utility model has the advantages that:
1. the utility model discloses electric cabinet system carries out the range upon range of drawer type equipment with a plurality of drawer type circuit units in the box, through drawer type circuit unit's immigration and shift out the box, realizes that circuit board function module and control bus motherboard connect by plugging in, and then realizes the exchange and the communication of signal, and every circuit board function module designs into an independent constitutional unit alone, can realize the communication of a plurality of circuit board function modules in a box; the mounting layout, miniaturization and lightweight design of the hyperspectral imager electric control system are met; the circuit board functional modules are all arranged in one box body, and the electromagnetic shielding performance is good;
this application electric cabinet system is modular design, and the control bus motherboard is installed alone in the box, through the fault phenomenon and to the test of control bus motherboard signal, fixes a position the trouble comparatively easily, confirms specifically that certain layer circuit board functional module breaks down, shifts out this layer trouble circuit board functional module and maintains the change operation, and this change process can not relate to other layer circuit board functional module, maintains and changes simple process, convenient operation.
2. The utility model discloses can be equipped with L shape heating panel on circuit board functional module, have higher heat conductivility, can be fast with the last components and parts heat conduction to fixed frame of circuit board functional module.
3. The fixing frame of the utility model can be made of 6061 hard aluminum alloy, so as to increase the rigidity; by adopting the frame structure, the circuit board fixing device not only can fix the circuit board functional module and prevent vibration damage, but also can be used as a heat dissipation path of the circuit board functional module.
4. The utility model discloses the both sides board of box adopts plate-fin heat transfer structure, is connected with the outside refrigeration source and forms circulation circuit, improves the radiating efficiency.
5. Because the components on the circuit board functional module are densely distributed, in order to improve the structural strength of the drawer type circuit unit, the fixed frame is provided with the reinforcing ribs.
6. The utility model discloses the immigration and shifting out of the relative box of every layer of drawer type circuit unit are realized to the cooperation of guide way on the linear guide of accessible fixed frame both sides board surface and the inboard wall of box both sides, guarantee sealing performance, the electromagnetic shield of hookup location, also increase structural mechanics stability simultaneously.
7. In order to improve the safety and reliability of the electric cabinet system, the box body is provided with a grounding pile.
Drawings
FIG. 1 is a schematic structural view of a hyperspectral load electric cabinet system suitable for a space environment of the utility model;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3 is a first schematic structural diagram of a fixed frame in the hyperspectral load electric cabinet system applicable to the space environment of the utility model;
fig. 4 is the utility model is a fixed frame's structural schematic diagram two in space environment's the high spectrum load electric cabinet system.
Wherein the reference numbers are as follows:
1-box body, 11-insertion opening, 12-quick-connection plug, 13-refrigerating flow pipe, 14-rear plate, 15-upper plate, 16-front plate, 17-bottom plate, 2-control bus mother board, 21-connector, 3-drawer type circuit unit, 30-fixed frame, 31-left side plate, 32-right side plate, 34-front side plate and 35-rear side plate; 311-threaded hole, 312-linear groove, 313-linear guide rail, 314-lateral connecting fixing hole, 321-mounting hole, 33-reinforcing rib, 4-circuit board functional module, 41-electric connector, 42-electric connector, 5-L-shaped heat dissipation plate, 6-analog quantity acquisition board component, 7-lower computer control board component, 8-calibration power supply control board component, 9-motion driving control board component, 10-imaging circuit power on-off control board component and 22-grounding pile.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments.
The radiation of the space environment can cause adverse effects on the electric control system, and an effective method for preventing damage is space separation. Therefore, how to reasonably support and protect the electronic control system of the space optical load structurally becomes the key of whether the instrument can normally work in the space environment.
When replacing circuit board components or plate frame structures in the existing box cavity, the process is complex, a certain circuit board or a certain component has problems, when replacing, the internal structure needs to be disassembled, and the operation and maintenance process is complex. Based on the shortcoming of traditional electric cabinet, this application has proposed the design of the double-deck isolation structure electric cabinet of modular concatenation push-and-pull frame-type, and this structure has greatly strengthened the electromagnetic shield ability of electric cabinet when guaranteeing electric cabinet mechanical stability, has strengthened the reliability of electric cabinet. And meanwhile, the disassembly and assembly process of the electric cabinet is simplified.
As shown in fig. 1 and 2, a hyperspectral load electric cabinet system suitable for a space environment comprises a cabinet 1, a control bus motherboard 2 and a plurality of drawer type circuit units 3; one end of the box body 1 is provided with a plurality of insertion holes 11 from top to bottom, the other end of the box body 1 is internally provided with the control bus motherboard 2, and the position of the control bus motherboard 2 opposite to each insertion hole 11 is provided with a connector 21; the number of the drawer-type circuit units 3 is matched with the number of the insertion openings 11, and the drawer-type circuit units 3 are arranged between the insertion openings 11 and the connectors 21.
Each drawer type circuit unit 3 comprises a fixed frame 30, a circuit board functional module 4, an electric connector 41 and an electric connector 42; the circuit board functional module 4 is arranged on the fixed frame 30, and the electric connectors 41 and the electric connectors 42 are arranged on the circuit board functional module 4; the circuit board functional module 4 is connected with the connector 21 through an electric connector 41, and the circuit board functional module 4 is connected with external equipment through an electric connector 42; the fixed frame 30 is connected with the inner walls of the two side plates of the box body 1 through a sliding component.
This application is modular design, and control bus mother board 2 is installed alone at the back plate 14 positions of box 1, through the test to control bus mother board 2 signals, fixes a position the trouble comparatively easily, confirms specifically that which layer of circuit board functional module 4 breaks down, can simply extract this layer of drawer type circuit unit maintain the change operation can, this change process can not relate to other normal circuit board functional module 4, maintains simple process, convenient operation. The utility model discloses an electric cabinet system realizes that each layer of circuit board functional module 4 connects with control bus mother board 2 by the immigration and the shift-out box 1 of drawer type circuit unit, exchanges and communicates signals, and each circuit board functional module 4 is designed into an independent structural unit alone, can realize the communication of a plurality of circuit board functional modules 4 in one box 1, realizes the communication between each layer of functional module in the control bus mother board 2; the mounting layout, miniaturization and lightweight design of the hyperspectral imager electric control system are met; a plurality of circuit board functional modules 4 are all installed in a box 1, and its electromagnetic shielding performance is good.
The electric cabinet system of the embodiment comprises 5 drawer type circuit units 3, correspondingly, 5 inserting holes 11 are arranged at one end of a box body 1 in parallel from top to bottom, the 5 drawer type circuit units 3 are arranged in the 5 inserting holes 11, circuit board function modules 4 arranged on the 5 drawer type circuit units 3 sequentially comprise an analog quantity acquisition board assembly 6, a lower computer control board assembly 7, a calibration power supply control board assembly 8, a motion driving control board assembly 9 and an imaging circuit power on/off control board assembly 10 from top to bottom, a fixed frame 30 is inserted into or inserted out of inner walls of two side plates of the box body 1 through a sliding assembly, then the 5 circuit board function modules 4 are connected with a control bus motherboard 2 in an inserting mode to exchange signals and communicate, the 5 circuit board function modules 4 are modularly designed in structure, each layer of function circuit board module is independently designed into an independent structure unit, each circuit board functional module 4 is designed with an independent fixed frame for fixed installation, and the 5-layer functional circuit board module is designed with a laminated structure. And (3) carrying out stacked drawer type assembly according to the connection relation of each layer of circuit board functional module 4, and fastening and mounting each layer and the side plates on the periphery of the box body to finally reach each technical requirement of the interface data list and meet the use condition of the space environment.
In the structural design, the circuit board functional module 4 comprises a circuit board arranged on the fixed frame 30 and a functional module arranged on the circuit board, and the functional module comprises components; by reasonably arranging the components on the circuit board functional module 4, the components with larger mass and the components needing structural heat dissipation are arranged at the edge area which is close to the circuit board and has smaller vibration deformation as much as possible.
The fixed frame 30 is made of 6061 hard aluminum alloy and comprises a left side plate 31, a right side plate 32, a front side plate 34 and a rear side plate 35; threaded holes 311 are formed in the left side plate 31, the right side plate 32, the front side plate 34 and the rear side plate 35, and after screws sequentially penetrate through the circuit board and the threaded holes 311, the circuit board is fixed on the fixed frame 30; the front plate 34 is provided with a mounting hole 321 of the connector 21 for connecting and fixing the connector 21.
Preferably, linear grooves are formed in the upper surfaces of the left side plate 31 and the right side plate 32, two ends of the circuit board are located on the two linear grooves 312, the two linear grooves 312 form an installation surface of the circuit board, and the left side plate and the right side plate have a limiting effect on the circuit board; the fixing frame 30 and the circuit board made of hard aluminum alloy material are connected into a whole through 15M 3 screws so as to increase rigidity. The circuit board is large in area and dense in component layout. The fixed frame structure is designed with reinforcing ribs 33 which are distributed in a cross shape to further ensure the structural rigidity. Each circuit board is inserted into the two side plate linear grooves 312 of the fixing frame, and the circuit board and the rectangular frame body are connected by 4M 3 screws at the front end face of the fixing frame and 6M 3 screws at the side plate position.
The electric cabinet system internal 5-layer circuit board functional module 4 can be designed with 14 external electric connectors 42, and each electric connector 42 is directly welded on the circuit board through pins and is precisely controlled through a component dimension chain. The size of a box body 1 of the electric cabinet system is as follows: 290mm by 200mm by 150 mm.
Through reasonable design of the fixed frame, the side plates on the periphery of the fixed frame and the mounting panel of the electric connector, the supporting rigidity and the matching precision of each layer of drawer type circuit unit are ensured, and the mounting is convenient. Because the electric cabinet system is a structural system for supporting and protecting the circuit, the interference between components of the circuit system and the fixed frame needs to be avoided, and safe displacement allowance is reserved according to the design of the circuit system. In the structural design, the layers are independently designed, but each layer of fixed frame 30 is fixed with the peripheral side plates of the box body 1 in a drawer type, and each layer of fixed frame 30 is in a thin-wall frame structure, so that the matching precision and matching length of the fixed frame and the side wall of the box body 1 need to be ensured, and the convenience and the smoothness of drawing and pushing of each layer of drawer type circuit unit 3 are ensured. The influence of accumulated errors after the five layers of drawer type circuit units 3 are installed is avoided, the drawer type circuit units 3 on each layer and the side plates on the periphery adopt a combined processing design method, the drawer type circuit units 3 on each layer are assembled after being processed, the combined processing is completed, and the influence of the accumulated errors on the installation is eliminated. Because the product is used in the aerospace environment, the environmental adaptability of the structural system needs to be analyzed, and a reasonable and effective fixing mode is adopted, so that the control box is ensured to have good mechanical environment adaptability.
Design of thermal properties
The thermal design of the electric cabinet system mainly comprises a natural cooling design, a forced air cooling design, a liquid cooling design, an evaporative cooling design, a cold plate design, a thermoelectric refrigerator design, a heat pipe heat transfer design and the like. The principle is to control the temperature of all electronic components in the product to be lower than the highest temperature required by stable operation under the working condition so as to ensure the safety of normal operation and the reliability of long-term operation of the product.
According to the design result of the electric cabinet system, the thermal power consumption of the high-power device of the circuit board is 85W. In order to ensure the normal operation of the electric cabinet in orbit, the high-power device of the circuit board is placed on the frame body position close to the fixed frame as much as possible so as to shorten the heat conduction path, and the circuit board is quickly conducted onto the box body 1 through the heat conduction plate and then is radiated by the satellite warehouse board. The fixing frame 30 not only serves to fix the circuit board and prevent vibration damage, but also serves as a heat dissipation path for the circuit board. The fixing frame 30 is fixed with the circuit board through screws, an L-shaped heat dissipation plate 5 is designed between the fixing frame 30 and a high-power device of the circuit board, the material is T2 copper alloy, the heat conduction performance is high, and the heat of the device can be quickly conducted to the fixing frame body. On the one hand, the heating panel is in contact with components and parts through heat conduction silicone grease to with circuit board fix with screw, on the other hand the heating panel carries out good installation fixedly through the structure of curb plate, with the heat conduction of components and parts production to 1 curb plate of box, dispel the heat to the outside, guarantee that the normal operating needs of devices can be satisfied to the thermal environment of 1 inside of box. The heat dissipation plate is used as an extension part of a mounting area of the high-power chip on the circuit board, and heat generated by the high-power chip can be dissipated along a heat conduction path of the device → the circuit board → the L-shaped heat dissipation plate → the fixed frame 30 → the side plate of the box body 1, so that the sensitive chip on the circuit board is prevented from being influenced by temperature rise.
On the other hand, an active refrigerating system is designed for rapidly dissipating heat of a high-power device. 1 both sides board of box is plate-fin heat transfer structure and dispels the heat, and the both sides board of box 1 can form a circulation liquid matter refrigeration mode respectively alone, also can carry out to establish ties the both sides board, is connected the whole circulation liquid matter refrigeration mode that forms, cooling system theory of operation with outside refrigeration source: the external refrigeration source enters from the inlet of the outer wall of the side plate, flows through the inner plate fin type of the side plate and then flows out from the outlet, and the plate fin type heat exchange mechanism is characterized in that: the heat transfer efficiency is high, the structure is compact, and the adaptability is strong; the fins are important elements in the side plates of the box body 1, and the heat transfer process is mainly completed through heat conduction of the fins and heat convection between the fins and fluid. Therefore, the heat exchanger fins are selected from various types, and commonly used fins include rectangular fins, triangular fins, zigzag fins, louver fins, corrugated fins, pin-shaped fins, porous fins and the like. Triangular fins and rectangular fins are beneficial to enhancing heat transfer due to small equivalent diameter. The porous fins are perforated to break the heat boundary layer continuously, so that the turbulent flow transition is promoted, and the heat transfer of a transition region and a turbulent flow region is obviously enhanced. The corrugated fin induces boundary layer separation by changing the geometric shape of the channel to form secondary flow of a cooling working medium to enhance heat exchange. The louver type fin and the zigzag fin both belong to the surface of an interrupted type fin, and are characterized in that the wall surface is interrupted, so that a thick boundary layer cannot appear, and each interrupted part is in uniform development type flow (generally from a high-flow region to a low-turbulence region), so that the heat exchange capacity of the louver type fin and the zigzag fin is greatly improved. Under the condition of the same fin spacing, the surface heat transfer coefficient of the fin is 2-3 times larger than that of the triangular fin and the rectangular fin. Due to the fact that the cold plate is large in flow resistance margin, the louver type fins and the zigzag fins with good heat exchange effect are selected, and the zigzag fins are preferred.
The two side plates of the box body 1 are used as supporting side plates, refrigeration design is conducted simultaneously, active refrigeration is conducted while mechanical stability is met, an L-shaped passive heat dissipation plate is designed inside each circuit board functional module 4, heat dissipation efficiency of internal heat is greatly improved, and good thermal environment is guaranteed to exist when an electronic system works.
The supporting plates on two sides of the box body are both designed to be plate-fin type refrigerating plates, and an L-shaped heat dissipation plate is designed on each layer of circuit board, so that efficient heat dissipation combining active heat dissipation and passive heat dissipation is realized.
Electromagnetic compatibility design
In a complex space environment, besides good electromagnetic compatibility of an electric control system, the electric control box for supporting the electric control system is required to have good electromagnetic sealing property. Therefore, electromagnetic shielding is carried out between the components in the electric cabinet in a lap joint mode, measures such as reasonably setting the distance between the fasteners and clamping the lap joint with enough pressure are taken, the connection surface is guaranteed to be in good contact under severe environmental conditions such as impact and vibration, and large influence is not generated on the electromagnetic shielding effect and the structural stability of the whole box body 1.
In terms of the electromagnetic shielding function, each circuit board functional module 4 employs a double-layer isolation structure. In each layer of control board assembly, the circuit board is arranged inside the fixed frame, the periphery of the fixed frame is all aluminum alloy structural members, the wall thickness is 3mm, and a first layer of closed peripheral shielding body is formed after the circuit board is assembled. The upper linear guide rails 313 of the left side plate and the right side plate of the fixed frame are matched with guide grooves on the inner walls of the two side plates of the box body 1 to realize the insertion and the extraction of the drawer type circuit unit relative to the box body 1, the lateral connecting and fixing holes 314 are arranged on the linear guide rails 313, the linear guide rails 313 are fixed on the outer surfaces of the left side plate and the right side plate of the fixed frame by screws penetrating through the lateral connecting and fixing holes, the plate-to-plate flanges at the front ends of the drawer type circuit unit are connected with the side plates, and the front plate 16, the rear plate 14, the upper plate 15 and the lower plate 17 are connected in a combined mode to form a second layer of closed peripheral. All electronic components are borne in the first layer, and spatial isolation between the electronic components and external equipment is achieved. The second layer is formed by sealing the fixed frame 30 with the bottom plate 17 of the box body 1, the two side plates of the box body 1, the front plate 16, the rear plate 14 and the upper plate 15.
In order to meet the requirement of lap resistance of structural parts and ensure good electromagnetic shielding performance, the connecting positions of the structural connecting pieces are subjected to conductive oxidation surface treatment, and more screws are arranged at the connecting positions to ensure the reliability of connection and good contact. In addition, in order to ensure the grounding state of the product, an independent grounding pile 22 assembly is designed at the side plate position of the box body 1, the grounding pile 22 is made of T2 copper alloy, so that the grounding pile has good conductivity, and the whole part of the grounding pile is subjected to surface gold plating treatment, so that the conductivity is further enhanced. The external ground wire is connected with the ground pile 22 and is locked and fixed by 2 nuts, the nuts are of customized structures and made of T2 copper alloy, and surface gold plating treatment is carried out on the nuts. In addition, the flatness of the installation surface of the electric cabinet is designed as follows: 0.1mm/100mm, the roughness of the mounting surface is less than or equal to 3.2 mu m, and the surface is subjected to primary color conductive oxidation treatment to ensure the good conductivity of the mounting surface.
The above description is only for the preferred embodiment of the present invention, and the technical solution of the present invention is not limited thereto, and any known modifications made by those skilled in the art on the basis of the main technical idea of the present invention belong to the technical scope to be protected by the present invention.
Claims (9)
1. The utility model provides a high spectral load electric cabinet system suitable for space environment which characterized in that: comprises a box body (1), a control bus motherboard (2) and a plurality of drawer type circuit units (3);
one end of the box body (1) is provided with a plurality of insertion holes (11) from top to bottom, the other end of the box body (1) is internally provided with the control bus motherboard (2), and the positions, opposite to the insertion holes (11), on the control bus motherboard (2) are provided with connectors (21);
the number of the drawer type circuit units (3) is matched with that of the insertion openings (11) and corresponds to that of the insertion openings one by one, and the drawer type circuit units (3) are arranged between the insertion openings (11) and the connectors (21);
the drawer type circuit unit (3) comprises a fixed frame (30), a circuit board functional module (4), an electric connector (41) and an electric connector (42);
the circuit board functional module (4) is arranged on the fixed frame (30), and the electric connector (41) and the electric connector (42) are arranged on the circuit board functional module (4);
the circuit board functional module (4) is connected with the connector (21) through an electric connector (41), and the circuit board functional module (4) is connected with external equipment through an electric connector (42);
the fixed frame (30) is connected with the inner walls of the two side plates of the box body (1) through a sliding assembly.
2. The hyperspectral load electric cabinet system suitable for the space environment according to claim 1 is characterized in that: each circuit board functional module (4) is provided with an L-shaped heat dissipation plate (5), and the heat dissipation plate is made of T2 copper alloy.
3. The hyperspectral load electric cabinet system suitable for the space environment according to claim 1 or 2 is characterized in that: the fixed frame (30) is made of 6061 hard aluminum alloy and comprises a left side plate (31), a right side plate (32), a front side plate (34) and a rear side plate (35);
threaded holes (311) are formed in the left side plate (31) and the right side plate (32), and after screws penetrate through the circuit board functional module (4) and the threaded holes (311), the circuit board functional module (4) is fixed on the fixed frame (30);
the front side plate (34) is provided with a mounting hole (321) for mounting an electric connector (42).
4. The hyperspectral load electric cabinet system suitable for the space environment according to claim 3 is characterized in that: two side plates of the box body (1) are both plate-fin heat exchange structures.
5. The hyperspectral load electric cabinet system suitable for the space environment according to claim 4 is characterized in that: reinforcing ribs (33) are arranged between the left side plate (31) and the right side plate (32) and between the front side plate (34) and the rear side plate (35).
6. The hyperspectral load electric cabinet system suitable for the space environment according to claim 5 is characterized in that: the circuit board functional module (4) is an analog quantity acquisition board assembly (6), a lower computer control board assembly (7), a calibration power supply control board assembly (8), a motion driving control board assembly (9) or an imaging circuit power-on and power-off control board assembly (10).
7. The hyperspectral load electric cabinet system suitable for the space environment according to claim 6 is characterized in that: the sliding assembly comprises a linear guide rail (313) which is respectively provided with the outer walls of a left side plate (31) and a right side plate (32), and guide grooves which are arranged on the inner walls of the two side plates of the box body (1) and are matched with the linear guide rail (313).
8. The hyperspectral load electric cabinet system suitable for the space environment according to claim 7 is characterized in that: the linear guide rail (313) is made of 6061 hard aluminum alloy.
9. The hyperspectral load electric cabinet system suitable for the space environment according to claim 1 is characterized in that: the box body (1) is provided with a grounding pile (22) which is made of T2 copper alloy;
and the grounding pile (22) is subjected to surface gold plating treatment.
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| CN201921091568.3U CN210781629U (en) | 2019-07-12 | 2019-07-12 | High spectral load electric cabinet system suitable for space environment |
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| CN201921091568.3U CN210781629U (en) | 2019-07-12 | 2019-07-12 | High spectral load electric cabinet system suitable for space environment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110366342A (en) * | 2019-07-12 | 2019-10-22 | 中国科学院西安光学精密机械研究所 | A kind of bloom spectrum loading electric cabinet system suitable for space environment |
| CN114173540A (en) * | 2021-12-13 | 2022-03-11 | 中国科学院空间应用工程与技术中心 | Thermal control structure and device for satellite-borne on-orbit information processing and service load |
-
2019
- 2019-07-12 CN CN201921091568.3U patent/CN210781629U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110366342A (en) * | 2019-07-12 | 2019-10-22 | 中国科学院西安光学精密机械研究所 | A kind of bloom spectrum loading electric cabinet system suitable for space environment |
| CN114173540A (en) * | 2021-12-13 | 2022-03-11 | 中国科学院空间应用工程与技术中心 | Thermal control structure and device for satellite-borne on-orbit information processing and service load |
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