CN113346569A - Electric servo high-voltage distributor of carrier rocket - Google Patents
Electric servo high-voltage distributor of carrier rocket Download PDFInfo
- Publication number
- CN113346569A CN113346569A CN202110474049.0A CN202110474049A CN113346569A CN 113346569 A CN113346569 A CN 113346569A CN 202110474049 A CN202110474049 A CN 202110474049A CN 113346569 A CN113346569 A CN 113346569A
- Authority
- CN
- China
- Prior art keywords
- voltage
- circuit
- distributor
- relay
- box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/42—Arrangements or adaptations of power supply systems
- B64G1/428—Power distribution and management
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00304—Overcurrent protection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Remote Sensing (AREA)
- Aviation & Aerospace Engineering (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses an electric servo high-voltage distributor of a carrier rocket. The high-voltage distributor consists of a high-voltage distributor structure, a high-voltage distributor circuit, a high-power switch device and a high-voltage electric connector. The high-voltage distributor structure adopts a box-type airtight structure, and the safety of power supply and distribution under a 270V high-voltage power supply system is guaranteed. The high-voltage distributor circuit consists of a high-voltage distribution circuit, a partial pressure acquisition interface circuit, a pressure measurement circuit and a soft start circuit, and ensures that the arrow high-voltage battery pack can reliably output electric energy to the servo controller under a 270V high-voltage power supply system. The high-voltage distributor can be used for high-voltage electric servo power distribution for the carrier rocket with high reliability.
Description
Technical Field
The invention relates to the field of power supply and distribution of carrier rockets, in particular to a high-voltage distributor for rocket electric servo.
Background
The power distributor mainly controls the on-off and switching of the power supply loop, is an important component of a power distribution system of the carrier rocket, and is an important single machine related to the success or failure of the flight mission of the carrier rocket.
The traditional distributor is used for supplying power to a control system and a measurement system independently, and the distribution voltage is 28V. In recent years, with the development of electric servo technology and battery technology, the carrier rocket servo mechanism is gradually developed from hydraulic servo to high-power electric servo, and a distributor is also required to be developed from normal-pressure power distribution to high-voltage power distribution. The high-voltage distributor has the remarkable characteristics of high voltage and large current, and compared with the conventional distributor, the high-voltage distributor needs to be technically improved and promoted in various aspects such as high-power switching device model selection, high-voltage electric connector model selection, structure airtight design, high-voltage insulation protection treatment and the like.
Due to the particularity of the use occasion of the high-voltage distributor for the carrier rocket, the high-voltage distributor has the requirements of severe use environment, high reliability and miniaturization and light weight, and no design scheme of related products is searched at present.
Disclosure of Invention
The invention aims to: the high-voltage distributor overcomes the defects of the prior art and meets the power supply requirement of a certain rocket electric servo mechanism.
The technical scheme adopted by the invention is as follows:
an electric servo high-voltage distributor for a launch vehicle, comprising: a high voltage distributor structure, a high voltage distributor circuit, a high power switching device and a high voltage electrical connector;
the high-voltage distributor structure comprises a top plate, a box-shaped part, a wire binding frame, a conductive rubber sealing strip, silver-plated aluminum conductive rubber and a shock pad;
the top plate is fixedly arranged on the box-shaped piece to seal an opening above the box-shaped piece, and a conductive rubber sealing strip is arranged between the top plate and the box-shaped piece to ensure air tightness;
the high-voltage connector is fastened in the box-shaped piece, and a joint surface between the high-voltage connector and the box-shaped piece is filled with silver-plated aluminum conductive rubber to ensure air tightness; the shock absorption pad is arranged on the mounting foot of the box-shaped part; the binding wire frame is fixed inside the box-shaped part and used for binding and fixing the flexible conducting wires inside the high-voltage distributor;
a high-voltage distributor circuit and a high-power switch device are also arranged in the box-shaped part; the high-voltage distributor circuit is used for conducting on-off and switching control on a high-voltage power supply loop, the high-power switch device is used for switching from a ground power supply to a power supply on the arrow, and the high-voltage electric connector is used for electrically connecting all components in the high-voltage distributor.
Furthermore, the high-voltage distributor circuit comprises a high-voltage distribution circuit, a partial pressure acquisition interface circuit, a pressure measurement circuit and a soft start circuit;
the soft start circuit completes the starting process by two steps, the pre-charging process identifies the state of the back-end equipment and charges the internal capacitive device to avoid generating surge starting current, and after the pre-charging process is completed, the second step of relay switch is used for supplying power to enable the back-end circuit to complete the transition of the intermediate state;
the high-voltage distribution circuit is used for controlling the relay to be switched on, so that the arrow high-voltage battery pack outputs electric energy to the servo controller to complete the power supply function;
the partial pressure acquisition interface circuit is used for detecting the output voltage of the high-voltage battery pack and the power supply voltage of the servo mechanism;
the pressure measurement circuit comprises a chip-level pressure sensor and a loop thereof and is used for checking the air tightness of the high-voltage distributor in the ground test stage.
Furthermore, the high-voltage distribution circuit, the partial pressure acquisition interface circuit and the pressure measurement circuit are integrated on a printed board, the printed board is fixed on the box-shaped part through screws, polyurethane varnish is used for coating, and the screw head is sealed by silicon rubber points.
Further, the following high voltage insulation protection measures are adopted to avoid arc discharge inside the high voltage distributor: eliminating sharp edges or sharp points near high pressure, and the continuous and smooth contour of the metal structural part without visible sharp edges; coating for multiple times by adopting polyurethane varnish; the convex welding points on the printed board are sealed with silicon rubber, so that the existence of convex electrodes is avoided; polyimide insulating adhesive tapes are wound at the contact part of the wires during the assembly of the wire binding frame; a polyimide insulating tape is pasted on the metal part within 20mm of the power line, and silicon rubber is sealed at the screw head point; the inner surface of the box is black anodized.
Further, the polyurethane varnish is coated with 7385 polyurethane varnish for multiple times, four times of coating is carried out, the coating angle difference is 90 degrees, and the coating thickness reaches about 120 mu m after coating; and the raised welding spot seals and the screw head seals on the printed board are made of GD414 silicon rubber.
Further, the high-power switching device comprises a K1 relay, a K2 relay and a K3 relay;
the K1 relay, the K2 relay and the K3 relay all adopt high-voltage high-power direct-current magnetic latching relays, are fixed on a bracket in a vertical installation mode, and are fixed in the box-shaped piece through screws;
the rated working voltage of the K1 relay and the rated working current of the K2 relay are 270V, and the rated working current is 150A; the rated working voltage of the K3 relay is 270V, and the rated working current of the K3 relay is 50A.
Furthermore, the conductive rubber sealing strip adopts a phi 2.62 aluminum silver plating fluorine silicon conductive rubber sealing strip.
Further, after the distribution controller sends a soft start command to switch on a K3 relay to be closed, the high-voltage battery pack pre-charges the servo controller through soft start resistors R13 and R14; after the soft start is finished, the power distribution controller controls the K1-K2 relays to be switched on, and the arrow high-voltage battery pack outputs electric energy to the servo controller to finish the power supply function; if the abnormal condition occurs, the relay K1-K2 is controlled to be disconnected to complete the power failure of the high-voltage battery pack;
the charging current is conditioned through the resistors R13 and R14 in the primary charging process, so that the pre-charging is realized in a low-current mode, and after the pre-charging is finished, the secondary charging circuit is switched on to finish the circuit starting.
Furthermore, the fault of the rear-end circuit is pre-judged by detecting the charging current in the primary charging process, when the charging current is larger than the preset charging current, the rear-end circuit is identified to be in a fault mode, and the primary charging is turned off to stop the secondary starting action.
Furthermore, a high-voltage lithium ion battery pack output voltage and servo mechanism power supply voltage monitoring circuit is arranged on the high-voltage distributor, after the circuit is completely connected, the output voltage of the battery pack and the stability of the servo mechanism power supply voltage can be visually represented by outputting two paths of voltage remote measurement values, and the working states of the battery pack and the servo mechanism are judged through the voltage remote measurement changes.
Compared with the prior art, the invention has the following beneficial effects:
(1) the high-voltage distributor has the advantages that the structure has air tightness, and the air tightness design of the structure is realized by blind hole design and filling of phi 2.62 aluminum silver-plated fluorosilicone conductive rubber sealing strips and aluminum silver-plated conductive rubber plates;
(2) the invention can output the most key parameter power voltage of the distributor in real time through voltage division remote measurement, and the remote measurement acquisition unit judges the state of the distributor and makes safety control through monitoring and identifying the distributor;
(3) according to the invention, the airtight condition inside the product is monitored in real time through the industrial-grade pressure sensor;
(4) the starting process is completed by two safe and reliable steps, the pre-charging process can identify the state of the back-end equipment and charge the internal capacitive device to avoid generating larger surge starting current, and after the pre-charging process is completed, the second step of the relay switch starts to rapidly realize power supply so that the back-end circuit rapidly completes the transition of the intermediate state.
Drawings
Figure 1 is a top view of a high voltage distributor configuration according to an embodiment of the present invention;
figure 2 is a front view of a high voltage distributor configuration according to an embodiment of the present invention;
figure 3 is a schematic block diagram of a high voltage distributor circuit according to an embodiment of the present invention.
Detailed Description
The following description of the embodiment of the high voltage distributor structure according to the present invention will be made with reference to fig. 1 and 2.
As shown in fig. 1 and fig. 2, the high voltage distributor for controlling on/off and switching of a high voltage power supply loop under a 270V high voltage regime provided by the present invention includes hardware components: the high-voltage distributor comprises a high-voltage distributor structure 1, a high-voltage distributor circuit 2, a high-power switch device 3 and a high-voltage electric connector 4.
The high-voltage distributor structure is used for maintaining an external configuration, providing an installation space for an internal circuit board assembly and a high-voltage relay, supporting and protecting various components inside equipment and ensuring the safety of components and assemblies under various loading conditions.
The high-voltage distributor structure 1 comprises a top plate 11, a box-shaped piece 12, a wire binding frame 13, a conductive rubber sealing strip 14, silver-plated aluminum conductive rubber 15 and a shock pad 16;
the box-shaped member is used for maintaining an external configuration, providing an installation space for an internal circuit board assembly and a high-voltage relay, and supporting and protecting components inside the device. The top plate 11 is fixedly arranged on the box-shaped part 12 to close the opening above the box-shaped part 12, so as to form an enclosed body. A conductive rubber sealing strip 14 is arranged between the top plate 11 and the box-shaped part 12 to ensure air tightness;
the high-voltage connector 4 is fastened in the box-shaped part 12, and a joint surface between the high-voltage connector 4 and the box-shaped part 12 is filled with silver-aluminum plated conductive rubber 15 to ensure air tightness; the shock absorption pad 16 is arranged on the mounting foot of the box-shaped part 12; the binding frame 13 is fixed inside the box-shaped part 12 and used for binding and fixing flexible wires inside the high-voltage distributor;
a high-voltage distributor circuit 2 and a high-power switching device 3 are also arranged in the box-shaped part 12; the high-voltage distributor circuit 2 is used for conducting on-off and switching control on a high-voltage power supply loop, the high-power switch device 3 is used for switching from a ground power supply to a power supply on an arrow, and the high-voltage electric connector 4 is used for electrically connecting all components in the high-voltage distributor.
The conductive rubber sealing strip 14 is a phi 2.62 aluminum silver-plating fluorosilicone conductive rubber sealing strip used for sealing a joint surface between the top plate and the box-shaped piece. The silver-plated aluminum conductive rubber plate is used for sealing the joint surface between the connector and the box-shaped piece. The shock pad is used for improving the whole mechanical resistance performance of the high-voltage distributor.
The high-voltage distributor circuit 2 also comprises a high-voltage distribution circuit 21, a partial pressure acquisition interface circuit 22, a pressure measurement circuit 23 and a soft start circuit 24;
the soft start circuit completes the starting process by two safe and reliable steps, the pre-charging process can identify the state of the back-end equipment and charge the internal capacitive device to avoid generating larger surge starting current, and after the pre-charging process is completed, the relay switch starts to rapidly supply power to enable the back-end circuit to rapidly complete the transition of the intermediate state;
the high-voltage distribution circuit 21 is used for controlling the relay to be switched on, so that the arrow high-voltage battery pack outputs electric energy to the servo controller to complete a power supply function;
the partial pressure acquisition interface circuit 22 is used for detecting the output voltage of the high-voltage battery pack and the power supply voltage of the servo mechanism;
the pressure measurement circuit 23 comprises a chip-level pressure sensor and a circuit thereof, and is used for checking the air tightness of the high-voltage distributor in the ground test stage.
The high-voltage distribution circuit 21, the partial pressure acquisition interface circuit 22 and the pressure measurement circuit 23 are integrated on a printed board, the printed board is fixed on the box-shaped part 12 through screws, polyurethane varnish is used for coating, and the screw head is sealed by silicon rubber points.
The high-power switching device 3 comprises a K1 relay 31, a K2 relay 32 and a K3 relay 33; the K1 relay 31, the K2 relay 32 and the K3 relay 33 are all high-voltage high-power direct-current magnetic latching relays, are fixed on a bracket in a vertical installation mode, and are fixed in the box-shaped part 12 through screws; the rated working voltage of the K1 relay 31 and the rated working current of the K2 relay are 270V and 150A; the K3 relay 33 is rated at 270V and 50A.
The high-voltage distributor of the invention uses the following high-voltage insulation protection measures for avoiding the internal arc discharge of the high-voltage distributor. The method comprises the steps of eliminating sharp edges or sharp points near high pressure, and enabling the contour of the metal structural part to be continuous and smooth without visible sharp edges; coating for multiple times by adopting polyurethane varnish; the convex welding points on the printed board are sealed with silicon rubber, so that the existence of convex electrodes is avoided; polyimide insulating adhesive tapes are wound at the contact part of the wires during the assembly of the wire binding frame; a polyimide insulating tape is pasted on the metal part within 20mm of the power line, and silicon rubber is sealed at the screw head point; the inner surface of the box is black anodized.
The operation of the high voltage distributor provided by the present invention will now be described with reference to figure 3.
The high-voltage distributor designs a secondary starting mode with safety protection measures, as shown in fig. 3, after a power distribution controller 1 sends a soft start command to switch on K3 to be closed, a high-voltage battery pack pre-charges a servo controller through soft start resistors R13 and R14; after the soft start is finished, the power distribution controller controls K1-K2 to be connected, and the arrow high-voltage battery pack outputs electric energy to the servo controller to finish the power supply function. And if the abnormality occurs, controlling to disconnect K1-K2 to finish the power failure of the high-voltage battery pack. The resistors R13 and R14 designed in the primary charging process condition the charging current to realize the pre-charging in a small current safety mode, and after the pre-charging is finished, the secondary charging circuit is switched on to quickly finish the circuit starting. The mode is safe and reliable, faults of the rear-end circuit can be pre-judged by detecting the charging current in the primary charging process, the rear-end circuit can be identified to be in a fault mode when the charging current is larger than the preset charging current, the primary charging can be turned off, the secondary starting action is stopped, and the reliability of the whole system circuit is guaranteed. Meanwhile, a high-voltage distributor is provided with a circuit for monitoring the output voltage of the high-voltage lithium ion battery pack and the power supply voltage of the servo mechanism, after the circuit is completely connected, two paths of output voltage can visually represent the voltage remote measurement value to monitor the output voltage of the battery pack and the stability of the power supply voltage of the servo mechanism in real time, and the working states of the battery pack and the servo mechanism are judged through the voltage remote measurement change.
Example (b):
the high-voltage distributor structure 1 further comprises a top plate 11, a box-shaped piece 12, a wire binding frame 13, a phi 2.62 aluminum silver-plated fluorosilicone conductive rubber sealing strip 14, aluminum silver-plated conductive rubber 15 and a shock pad 16.
The top plate 11 is fastened on the box-shaped part 12 through 38M 3 screws, the screws apply tightening torque of 0.8-0.9 Nm, and a combined surface between the top plate 11 and the box-shaped part 12 is filled with a phi 2.62 aluminum silver-plated fluorosilicone conductive rubber sealing strip 14, so that airtightness is guaranteed.
The high-voltage connector 4 is fastened on the box-shaped part 12 by 4M 3 screws, and the joint surface between the high-voltage connector 4 and the box-shaped part 12 is filled with silver-aluminum plated conductive rubber 15 to ensure air tightness.
The shock-absorbing pad 16 is arranged on 6 mounting feet of the box-shaped part 12, and the mechanical resistance of the product is improved.
The high voltage distributor circuit 2 further comprises a high voltage distribution circuit 21, a partial voltage acquisition interface circuit 22, a pressure measurement circuit 23 and a soft start circuit 24.
The high-voltage distribution circuit 21, the partial pressure acquisition interface circuit 22 and the pressure measurement circuit 23 are integrated on a printed board, are fixed on the box-shaped part 12 by adopting 4M 3 screws, and are coated by adopting 7385 polyurethane varnish to ensure the insulating property of the printed board. The 4M 3 screw heads were spot sealed with GD414 silicone rubber.
Coating with the polyurethane varnish for multiple times, coating with the 7385 polyurethane varnish for four times, wherein the coating angle difference is 90 degrees each time, and the coating thickness reaches about 120 mu m after coating;
GD414 silicon rubber is used for the raised welding spot seals and the screw head point seals on the printed board.
The soft start circuit 24 is fixed to the box 12 by 4M 3 screws.
The high-power switching device 3 comprises a K1 relay 31, a K2 relay 32 and a K3 relay 33.
The K1 relay 31, the K2 relay 32 and the K3 relay 33 are all high-voltage high-power direct-current magnetic latching relays produced by seventh and third research institutes of electronics and technology Limited company in the aerospace era, and are fixed on a customized bracket in a vertical installation mode and then fixed on the box-shaped part 12 through 4M 5 screws.
The K1 relay 31 and the K2 relay 32 have the rated working voltage of 270V and the rated working current of 150A, and have better anti-vibration performance.
The K3 relay 33 has a rated working voltage of 270V and a rated working current of 50A, and has good anti-vibration performance.
The high-voltage electric connector 4 adopts J599/20FTG 48S (P) N-H-46 and rated current 46A produced by the middle-aviation photoelectric science and technology company Limited, the withstand voltage of the electric connector under low pressure reaches 1500VDC, and the leakage rate is less than or equal to 1 x 10 < -7 > Pa cm 3/s.
Those matters not described in detail in the present specification are well known in the art.
Claims (10)
1. An electric servo high-voltage distributor for a launch vehicle, comprising: the high-voltage distribution device comprises a high-voltage distribution device structure (1), a high-voltage distribution device circuit (2), a high-power switch device (3) and a high-voltage electric connector (4);
the high-voltage distributor structure (1) comprises a top plate (11), a box-shaped piece (12), a wire binding frame (13), a conductive rubber sealing strip (14), silver-plated aluminum conductive rubber (15) and a shock pad (16);
the top plate (11) is fixedly arranged on the box-shaped part (12) to seal an opening above the box-shaped part (12), and a conductive rubber sealing strip (14) is arranged between the top plate (11) and the box-shaped part (12) to ensure air tightness;
the high-voltage connector (4) is fastened in the box-shaped part (12), and a joint surface between the high-voltage connector (4) and the box-shaped part (12) is filled with silver-plated aluminum conductive rubber (15) to ensure air tightness; the shock absorption pad (16) is arranged on a mounting foot of the box-shaped part (12); the binding frame (13) is fixed inside the box-shaped part (12) and is used for binding and fixing the flexible wires inside the high-voltage distributor;
a high-voltage distributor circuit (2) and a high-power switch device (3) are also arranged in the box-shaped part (12); the high-voltage distributor circuit (2) is used for conducting on-off and switching control on a high-voltage power supply loop, the high-power switch device (3) is used for switching from a ground power supply to a rocket power supply, and the high-voltage electric connector (4) is used for electrically connecting all components in the high-voltage distributor.
2. A launch vehicle electric servo high voltage power distributor according to claim 1, characterized in that: the high-voltage distributor circuit (2) also comprises a high-voltage distribution circuit (21), a partial pressure acquisition interface circuit (22), a pressure measurement circuit (23) and a soft start circuit (24);
the soft start circuit (24) completes the starting process by two steps, the pre-charging process identifies the state of the back-end equipment and charges the internal capacitive device to avoid generating surge starting current, and after the pre-charging process is completed, the second step of relay switch is used for supplying power to enable the back-end circuit to complete the transition of the intermediate state;
the high-voltage distribution circuit (21) is used for controlling the relay to be switched on, so that the arrow high-voltage battery pack outputs electric energy to the servo controller to complete the power supply function;
the partial pressure acquisition interface circuit (22) is used for detecting the output voltage of the high-voltage battery pack and the power supply voltage of the servo mechanism;
the pressure measurement circuit (23) comprises a chip-level pressure sensor and a loop thereof and is used for checking the air tightness of the high-voltage distributor in the ground test stage.
3. A launch vehicle electric servo high voltage power distributor according to claim 2, characterized in that: the high-voltage distribution circuit (21), the partial pressure acquisition interface circuit (22) and the pressure measurement circuit (23) are integrated on a printed board, the printed board is fixed on the box-shaped part (12) through screws, polyurethane varnish is used for coating, and the screw head is sealed by silicon rubber points.
4. A launch vehicle electric servo high voltage power distributor according to claim 2, characterized in that: the following high-voltage insulation protection measures are adopted to avoid internal arc discharge of the high-voltage distributor: eliminating sharp edges or sharp points near high pressure, and the continuous and smooth contour of the metal structural part without visible sharp edges; coating for multiple times by adopting polyurethane varnish; the convex welding points on the printed board are sealed with silicon rubber, so that the existence of convex electrodes is avoided; polyimide insulating adhesive tapes are wound at the contact part of the wires during the assembly of the wire binding frame; a polyimide insulating tape is pasted on the metal part within 20mm of the power line, and silicon rubber is sealed at the screw head point; the inner surface of the box is black anodized.
5. A launch vehicle electric servo high voltage power distributor according to claim 4, characterized in that: the polyurethane varnish is coated with 7385 polyurethane varnish for multiple times, four times of coating is carried out, the coating angle difference is 90 degrees each time, and the coating thickness reaches about 120 mu m after coating; and the raised welding spot seals and the screw head seals on the printed board are made of GD414 silicon rubber.
6. A launch vehicle electric servo high voltage power distributor according to claim 2, characterized in that: the high-power switching device (3) comprises a K1 relay (31), a K2 relay (32) and a K3 relay (33);
the K1 relay (31), the K2 relay (32) and the K3 relay (33) are high-voltage high-power direct-current magnetic latching relays, are fixed on a bracket in a vertical installation mode, and are fixed in the box-shaped part (12) through screws;
the rated working voltage of the K1 relay (31) and the rated working current of the K2 relay (32) are 270V and 150A; the rated working voltage of the K3 relay (33) is 270V, and the rated working current is 50A.
7. A launch vehicle electric servo high voltage power distributor according to claim 2, characterized in that: the conductive rubber sealing strip (14) adopts a phi 2.62 aluminum silver-plating fluorine-silicon conductive rubber sealing strip.
8. A launch vehicle electric servo high voltage power distributor according to claim 6, characterized in that: after the distribution controller sends a soft start command to switch on a K3 relay and close, the high-voltage battery pack pre-charges the servo controller through soft start resistors R13 and R14; after the soft start is finished, the power distribution controller controls the K1-K2 relays to be switched on, and the arrow high-voltage battery pack outputs electric energy to the servo controller to finish the power supply function; if the abnormal condition occurs, the relay K1-K2 is controlled to be disconnected to complete the power failure of the high-voltage battery pack;
the charging current is conditioned through the resistors R13 and R14 in the primary charging process, so that the pre-charging is realized in a low-current mode, and after the pre-charging is finished, the secondary charging circuit is switched on to finish the circuit starting.
9. A launch vehicle electric servo high voltage power distributor according to claim 8, characterized in that: the fault of the rear-end circuit is pre-judged by detecting the charging current in the primary charging process, when the charging current is larger than the preset charging current, the rear-end circuit is identified to be in a fault mode, and the primary charging is turned off to stop the secondary starting action.
10. A launch vehicle electric servo high voltage power distributor according to claim 9, characterized in that: the high-voltage distributor is provided with a circuit for monitoring the output voltage of the high-voltage lithium ion battery pack and the power supply voltage of the servo mechanism, after the circuit is completely connected, two paths of output voltage remote measurement values can be visually represented to monitor the output voltage of the battery pack and the stability of the power supply voltage of the servo mechanism in real time, and the working states of the battery pack and the servo mechanism are judged through the voltage remote measurement change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110474049.0A CN113346569B (en) | 2021-04-29 | 2021-04-29 | Electric servo high-voltage distributor of carrier rocket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110474049.0A CN113346569B (en) | 2021-04-29 | 2021-04-29 | Electric servo high-voltage distributor of carrier rocket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113346569A true CN113346569A (en) | 2021-09-03 |
| CN113346569B CN113346569B (en) | 2022-12-27 |
Family
ID=77469068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110474049.0A Active CN113346569B (en) | 2021-04-29 | 2021-04-29 | Electric servo high-voltage distributor of carrier rocket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113346569B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202641566U (en) * | 2012-07-02 | 2013-01-02 | 东风汽车公司 | High voltage block terminal for hybrid passenger vehicle |
| CN203301231U (en) * | 2013-05-10 | 2013-11-20 | 北京宇航系统工程研究所 | Distributor with functions of large power switch and control signal delay |
| CN205425990U (en) * | 2015-10-12 | 2016-08-03 | 上海航天测控通信研究所 | Accuse system of sending out is surveyed on mobilizable carrier rocket ground and front end shelter, rear end shelter thereof |
| CN106411119A (en) * | 2016-11-21 | 2017-02-15 | 天津七六四通信导航技术有限公司 | Power supply module satisfying requirements for power supply unit of anti-interference antenna of airborne satellite |
| CN106428589A (en) * | 2016-11-09 | 2017-02-22 | 北京宇航系统工程研究所 | Aerospace craft power supply and distributor based on solid power control technique |
| CN206259610U (en) * | 2016-11-28 | 2017-06-16 | 北京航天自动控制研究所 | A kind of guided missile and carrier space vehicle control system distributor |
| CN208185574U (en) * | 2018-04-04 | 2018-12-04 | 北京航天自动控制研究所 | A kind of liquid launch vehicle solenoid valve arrow ground dual control isolation circuit |
| CN110299850A (en) * | 2019-06-28 | 2019-10-01 | 西安中车永电电气有限公司 | A kind of High power Traction AuCT |
| CN110836620A (en) * | 2019-12-12 | 2020-02-25 | 中国船舶重工集团公司第七一七研究所 | Optical fiber rate gyro combination for controlling civil carrier rocket |
| CN110932349A (en) * | 2019-11-29 | 2020-03-27 | 北京宇航系统工程研究所 | Energy efficient topological system on arrow based on wireless power supply |
| CN112583002A (en) * | 2020-11-30 | 2021-03-30 | 北京宇航系统工程研究所 | 28V/270V composite energy system for carrier rocket |
-
2021
- 2021-04-29 CN CN202110474049.0A patent/CN113346569B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202641566U (en) * | 2012-07-02 | 2013-01-02 | 东风汽车公司 | High voltage block terminal for hybrid passenger vehicle |
| CN203301231U (en) * | 2013-05-10 | 2013-11-20 | 北京宇航系统工程研究所 | Distributor with functions of large power switch and control signal delay |
| CN205425990U (en) * | 2015-10-12 | 2016-08-03 | 上海航天测控通信研究所 | Accuse system of sending out is surveyed on mobilizable carrier rocket ground and front end shelter, rear end shelter thereof |
| CN106428589A (en) * | 2016-11-09 | 2017-02-22 | 北京宇航系统工程研究所 | Aerospace craft power supply and distributor based on solid power control technique |
| CN106411119A (en) * | 2016-11-21 | 2017-02-15 | 天津七六四通信导航技术有限公司 | Power supply module satisfying requirements for power supply unit of anti-interference antenna of airborne satellite |
| CN206259610U (en) * | 2016-11-28 | 2017-06-16 | 北京航天自动控制研究所 | A kind of guided missile and carrier space vehicle control system distributor |
| CN208185574U (en) * | 2018-04-04 | 2018-12-04 | 北京航天自动控制研究所 | A kind of liquid launch vehicle solenoid valve arrow ground dual control isolation circuit |
| CN110299850A (en) * | 2019-06-28 | 2019-10-01 | 西安中车永电电气有限公司 | A kind of High power Traction AuCT |
| CN110932349A (en) * | 2019-11-29 | 2020-03-27 | 北京宇航系统工程研究所 | Energy efficient topological system on arrow based on wireless power supply |
| CN110836620A (en) * | 2019-12-12 | 2020-02-25 | 中国船舶重工集团公司第七一七研究所 | Optical fiber rate gyro combination for controlling civil carrier rocket |
| CN112583002A (en) * | 2020-11-30 | 2021-03-30 | 北京宇航系统工程研究所 | 28V/270V composite energy system for carrier rocket |
Non-Patent Citations (1)
| Title |
|---|
| 辛高波，等: ""运载火箭冗余分级智能供配电技术研究"", 《计算机测量与控制》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113346569B (en) | 2022-12-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105655815B (en) | A kind of new-energy automobile charging gun of charging gun headband temperature protection function | |
| CN110228388A (en) | Control the method for method for charging electric vehicles and the charging equipment of vehicle electrical reservoir charging | |
| CN202057755U (en) | Cable fault detector | |
| CN202641566U (en) | High voltage block terminal for hybrid passenger vehicle | |
| CN205131686U (en) | A prevent striking sparks wiring circuit and unmanned aerial vehicle for unmanned aerial vehicle power battery | |
| CN106374061A (en) | Top cover structure of power battery | |
| CN113346569B (en) | Electric servo high-voltage distributor of carrier rocket | |
| CN108501724A (en) | A kind of new energy auto high-voltage electrical box | |
| CN216231692U (en) | High-voltage distribution box for electric automobile | |
| CN106129887B (en) | GIS prepared separations, outside line enlargement method and GIS device | |
| CN210837923U (en) | Battery overcharge protection structure and battery cover | |
| CN205836717U (en) | A kind of high-voltage connection box of pure electric automobile | |
| CN218727768U (en) | High-voltage insulation test device | |
| CN102859757A (en) | Accumulator assembly for a battery of an electric or hybrid vehicle, provided with a connecting strut | |
| US11569045B2 (en) | Grid influencing system | |
| CN114203353A (en) | System and method for resisting strong magnetic field interference of inspection robot | |
| CN208433460U (en) | A kind of battery and battery protecting apparatus | |
| CN113777456A (en) | On-spot insulation test device of totally enclosed gas insulation high voltage switch | |
| CN113593916A (en) | Preparation process of aluminum electrolytic capacitor special for electric vehicle controller | |
| CN216215411U (en) | Detachable structure for high-voltage switch combined electrical appliance | |
| CN113904526B (en) | Small-sized pulse plasma space electric propulsion high-voltage power converter | |
| CN106019022B (en) | Cover plate test device for connecting gas chamber between oil-gas type transformer and GIS and operation method | |
| CN220306476U (en) | Energy storage device | |
| CN115117527B (en) | Composite EPP battery cover plate with ventilation, flame retardance and moisture resistance effects | |
| CN116264377A (en) | GIS bus end extension device, transformer substation and GIS bus extension method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |