Integrated power supply subsystem for micro-nano satellite

Abstract

The utility model discloses an integrated power supply subsystem for a micro-nano satellite, which relates to the technical field of micro-nano satellite power supply subsystems and comprises a structural top cover, a structural bottom cover, a copper column, a power supply control unit, a screw rod, a power distribution unit, a first storage battery pack, a second storage battery pack, a third storage battery pack, an input connector and an output connector. According to the utility model, a compact stack type design is adopted, and efficient connection is realized to form a whole; the input function and the output function of the power supply subsystem are respectively designed into two external connectors, namely an input connector and an output connector; complicated and lengthy cables used among the components of the power supply subsystem and used when the components of the power supply subsystem are connected with other single machines are effectively reduced. And secondly, through high-integration design, the size of the whole power supply subsystem is adjusted to be optimal, the utilization rate of the internal space of the micro-nano satellite is improved, the quality of the power supply subsystem is controlled within the most reasonable range, and the launching cost of the whole satellite is effectively controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of microsatellite power sub-systems, and specifically to an integrated power sub-system for microsatellites. Background Art

[0002] A microsatellite (NanoSat) generally refers to a satellite with a mass less than 10 kg and practical functions. With the development of high-tech and the driving of demands, microsatellites, with the advantages of small volume, low power consumption, short development cycle, ability to form formation networks, and the ability to complete many complex space missions at a lower cost, play an important role in scientific research, national defense, commercial and other fields.

[0003] In the prior art, the power sub-systems of microsatellites mostly adopt the method of separately designing, manufacturing and installing components such as PCU (Power Control Unit), PDU (Power Distribution Unit), battery packs, and cables; and even in some designs, components such as BCR (Battery Charging Regulator) and BDR (Battery Discharging Regulator) are split out from the PCU. For the limited internal space of microsatellites, such a separated design has a series of problems such as large space occupation, low space utilization rate, long and complex wiring between components; on the other hand, it also increases the overall mass of the power sub-system, thus increasing the mass of the whole satellite and causing an increase in satellite launch costs.

[0004] Therefore, there is an urgent need for an integrated power sub-system for microsatellites to solve the above problems. Summary of the Utility Model

[0005] The purpose of the embodiments of the utility model is to provide an integrated power sub-system for microsatellites to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution:

[0007] An integrated power sub-system for microsatellites, comprising: a structural top cover and a structural bottom cover, the bottom of the four corners of the structural top cover is connected to the top of copper columns, the bottom of the copper columns is connected to the top of the power control unit, the bottom of the four corners of the power control unit is connected to the top of screw rods, the bottom of the screw rods is connected to the top of the power distribution unit, the bottom of the power distribution unit is connected to the top of copper columns, the bottom of the copper columns is connected to the structural bottom cover, battery packs one, two, and three are sequentially arranged from top to bottom on the screw rods, an input connector is arranged on the power control unit, and an output connector is arranged on the power distribution unit.

[0008] As a further solution of the utility model: the structural top cover is connected to the top of the skin, the structural bottom cover is connected to the bottom of the skin, and the skin wraps around the periphery of the structural top cover and the structural bottom cover.

[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0010] The present utility model provides a stable, reliable, highly integrated, compact and lightweight power distribution system product, which improves the utilization rate of the internal space of the micro-nano satellite, and the mass of the power distribution system is also controlled within the most reasonable range, effectively controlling the overall satellite launch cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of an integrated power distribution system for a micro-nano satellite in an embodiment of the present utility model.

[0012] Figure 2 It is a front schematic diagram of a partial structure of an integrated power distribution system for a micro-nano satellite in an embodiment of the present utility model.

[0013] Figure 3 It is a back schematic diagram of a partial structure of an integrated power distribution system for a micro-nano satellite in an embodiment of the present utility model.

[0014] In the figure: 1. Power control unit; 2. First battery pack; 3. Second battery pack; 4. Third battery pack; 5. Power distribution unit; 6. Structural bottom cover; 7. Output connector; 8. Screw; 9. Input connector; 10. Copper column; 11. Structural top cover; 12. Skin. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0016] In an embodiment of the present utility model, please refer to Figures 1 to 3 , an integrated power distribution system for a micro-nano satellite, comprising: a structural top cover 11 and a structural bottom cover 6. The bottom corners of the structural top cover 11 are connected to the tops of copper columns 10. The bottoms of the copper columns 10 are connected to the top of the power control unit 1. The bottom corners of the power control unit 1 are connected to the tops of screws 8. The bottoms of the screws 8 are connected to the top of the power distribution unit 5. The bottom of the power distribution unit 5 is connected to the top of a copper column 10. The bottom of the copper column 10 is connected to the structural bottom cover 6. The first battery pack 2, the second battery pack 3, and the third battery pack 4 are sequentially arranged on the screw 8 from top to bottom. An input connector 9 is arranged on the power control unit 1, and an output connector 7 is arranged on the power distribution unit 5.

[0017] The power control unit 1 is electrically connected to the input connector 9, the power distribution unit 5 is electrically connected to the output connector 7, and the battery pack 1, battery pack 2, and battery pack 3 are used to provide electrical energy.

[0018] As an embodiment of the present invention, please refer to Figure 1 , the structural top cover 11 is connected to the top end of the skin 12, the structural bottom cover 6 is connected to the bottom end of the skin 12, and the skin 12 wraps around the structural top cover 11 and the structural bottom cover 6.

[0019] The working principle of the present invention is as follows: The present invention adopts a compact stack design, which efficiently connects the structural top cover 11, the structural bottom cover 6, the screw 8, the copper column 10, etc. into a whole; the input and output functions of the power sub-system are respectively designed as two external connectors: the input connector 9 and the output connector 7; the present invention effectively reduces the complex and lengthy cables used between the components of the power sub-system and its interconnection with other single machines; secondly, through high-integration design, the volume of the entire power sub-system is adjusted to the optimal, improving the utilization rate of the internal space of the micro-nano satellite, and the mass of the power sub-system is also controlled within the most reasonable range, effectively controlling the launch cost of the entire satellite.

[0020] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0021] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An integrated power subsystem for micro-nano satellite, characterized in that: include: A structural top cover and a structural bottom cover, wherein the bottom of the four corners of the structural top cover are connected to the top of the copper column, the bottom of the copper column is connected to the top of the power control unit, the bottom of the four corners of the power control unit are connected to the top of the screw, the bottom of the screw is connected to the top of the power distribution unit, the bottom of the power distribution unit is connected to the top of the copper column, the bottom of the copper column is connected to the structural bottom cover, the screw is sequentially provided with battery group one, battery group two and battery group three from top to bottom, the power control unit is provided with an input connector, and the power distribution unit is provided with an output connector.

2. The integrated power subsystem for micro-nano satellite according to claim 1, characterized in that: The structural top cover is connected to the top end of the skin, the structural bottom cover is connected to the bottom end of the skin, and the skin is wrapped around the structural top cover and the structural bottom cover.

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