Battery heating system of fixed-wing general-purpose aircraft

Abstract

The utility model relates to a battery heating system of a general-purpose fixed-wing aircraft, which comprises a power plug, a power bus is electrically connected to the power plug, and a main branch line and a secondary branch line are electrically connected to the tail end of the power bus. The main branch wire and the secondary branch wire are respectively connected with a plurality of main wiring harnesses and secondary wiring harnesses through power connectors and wiring harness connectors, and the tail ends of the main wiring harnesses and the secondary wiring harnesses are respectively and electrically connected with a plurality of main battery heating foils and standby battery heating foils; the main battery heating foil is adhered and fixed on the peripheral side wall of the main battery, and the standby battery heating foil is adhered and fixed on two opposite side walls of the standby battery. The heating system is completely independent of an electrical system of the airplane, is only suitable for the ground, is simple in structure, light in weight and convenient to maintain, and can realize normal operation of a battery system of the airplane under a low-temperature condition.

Description

Technical field:

[0001] The utility model relates to the technical field of aircraft heating systems, and more specifically to a battery heating system for fixed-wing general-purpose aircraft. Background technology:

[0002] Fixed-wing general-purpose aircraft are usually equipped with two batteries: the main battery and the ECU backup battery. The main battery is usually used to provide power services for the aircraft, and the ECU backup battery is directly connected to the ECU backup relay. When other power sources fail, the battery provides power to the ECU and its fuel pump. However, when the aircraft is in a low-temperature environment, it cannot operate due to the low battery temperature after a short or long parking. Therefore, a system for heating the main battery and the ECU backup battery needs to be designed in fixed-wing general-purpose aircraft to avoid failure to operate due to low battery temperature. Utility model content:

[0003] The purpose of the utility model is to address the deficiencies of the prior art and to provide a battery heating system for a fixed-wing general-purpose aircraft. The heating system is completely independent of the electrical system of the aircraft and is only applicable to the ground. It has a simple structure, is light in weight, and is easy to maintain, and can achieve normal operation of the battery system of the aircraft under low temperature conditions.

[0004] A battery heating system for a fixed-wing general aircraft comprises a power plug, the power plug is electrically connected to a power bus, the end of the power bus is electrically connected to a main branch line and a secondary branch line, the main branch line and the secondary branch line are respectively connected to a plurality of main connection harnesses and secondary connection harnesses through a power connector and a harness connector, and the ends of the main connection harness and the secondary connection harness are respectively electrically connected to a plurality of main battery heating foils and a backup battery heating foil; the main battery heating foils are glued and fixed to the side walls around the main battery, and the backup battery heating foils are glued and fixed to the two opposite side walls of the backup battery.

[0005] Preferably, the power connector comprises a cylindrical socket and a plug connector, the main branch line and the main wiring harness are electrically connected to the socket and the plug connector respectively; the main wiring harness is composed of a main cable and a branch cable, the branch cable is overlapped on the main cable, and the ends of the main cable and the branch cable are respectively welded and fixed to the electrode socket of the main battery heating foil;

[0006] The wiring harness connector includes a terminal socket and a terminal plug, and the secondary branch line and the secondary connection harness are electrically connected to the terminal socket and the terminal plug respectively. The secondary connection harness on the terminal plug is composed of a plurality of wires, and the ends of the wires are respectively welded and fixed to the electrode sockets of the backup battery heating foil.

[0007] Preferably, the power bus, main branch line, secondary branch line, main wiring harness and secondary wiring harness are respectively connected with a braided protective cover.

[0008] Preferably, a first rated voltage label is sleeved and connected on the main wiring harness near the plug connector, a second rated voltage label is sleeved and connected on the secondary wiring harness near the terminal plug, a third rated voltage label is sleeved and connected on the main branch line near the socket, a fourth rated voltage label is sleeved and connected on the secondary branch line near the terminal socket, and a fifth rated voltage label is sleeved and connected on the power bus near the power plug.

[0009] Preferably, both the main battery heating foil and the backup battery heating foil include a temperature control component, and the temperature control component includes a temperature sensor and a switch.

[0010] Preferably, the power bus is electrically connected to a fuse holder, and a fuse is installed in the fuse holder.

[0011] The beneficial effects of the utility model are:

[0012] This heating system is completely independent of the aircraft's electrical system and is only applicable to the ground. It has a simple structure, light weight, and is easy to maintain, allowing the aircraft's battery system to operate normally under low temperature conditions. Description of the drawings:

[0013] Figure 1 This is a connection diagram of the power bus part of the utility model;

[0014] Figure 2 This is a schematic diagram of the connection of the heating foil part of the main battery of the utility model;

[0015] Figure 3 This is a schematic diagram of the connection of the heating foil part of the backup battery of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the main battery part of the utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the backup battery part of the utility model;

[0018] Figure 6 This is a circuit schematic diagram of the utility model.

[0019] In the figure: 1. power plug; 2. power bus; 3. main branch line; 4. secondary branch line; 5. power connector; 6. wiring harness connector; 7. main wiring harness; 8. main battery heating foil; 9. main battery; 10. secondary wiring harness; 11. spare battery heating foil; 12. spare battery; 13. braided protective cover; 14. first rated voltage label; 15. second rated voltage label; 16. third rated voltage label; 17. fourth rated voltage label; 18. fifth rated voltage label; 19. fuse holder; 20. main battery holder; 21. spare battery holder. Specific implementation method:

[0020] Example: See Figures 1 to 6 As shown, a battery heating system for a fixed-wing general aircraft includes a power plug 1, the power plug 1 is electrically connected to a power bus 2, the end of the power bus 2 is electrically connected to a main branch line 3 and a secondary branch line 4, the main branch line 3 and the secondary branch line 4 are respectively connected to a plurality of main connection harnesses 7 and a secondary connection harness 10 through a power connector 5 and a harness connector 6, and the ends of the main connection harness 7 and the secondary connection harness 10 are respectively electrically connected to a plurality of main battery heating foils 8 and a backup battery heating foil 11; the main battery heating foil 8 is glued and fixed to the side walls around the main battery 9, the backup battery heating foil 11 is glued and fixed to the two opposite side walls of the backup battery 12, and the backup battery heating foil 11 and the main battery heating foil 8 can be quickly glued to the main battery 9 and the backup battery 12 by spraying glue;

[0021] A main battery holder 20 and a backup battery holder 21 for the main battery 9 and the backup battery 12 are respectively arranged in the fuselage of the general aircraft, and the main battery 9 and the backup battery 12 are respectively inserted in the main battery holder 20 and the backup battery holder 21.

[0022] The power connector 5 includes a cylindrical socket 51 and a plug connector 52, the main branch line 3 and the main wiring harness 7 are electrically connected to the socket 51 and the plug connector 52 respectively; the main wiring harness 7 is composed of a main cable and a branch cable, the main battery 9 is rectangular, the main battery 9 includes a rectangular shell and a plurality of battery cells arranged in the shell, and the main battery heating foil 8 is provided with eight pieces, and the main battery heating foil 8 is respectively arranged on the side wall of the shell;

[0023] The branch cable is overlapped on the main cable, the number of wires in the main cable and the branch cable is sixteen, and the ends of the main cable and the branch cable are respectively welded and fixed to the electrode sockets of the main battery heating foil 8; the power connector 5 includes an insulating connector and an electrode connector arranged in an insulating connection shell, and the electrode connector in the power connector 5 is provided with sixteen pairs;

[0024] The wiring harness connector 6 includes a terminal socket 61 and a terminal plug 62, the secondary branch line 4 and the secondary wiring harness 10 are electrically connected to the terminal socket 61 and the terminal plug 62 respectively, the secondary wiring harness 10 on the terminal plug 62 is composed of a plurality of wirings, the backup battery 12 is composed of two independent groups of batteries, the backup battery heating foil 11 is provided with three pieces, and the backup battery heating foil 11 is respectively arranged on both sides of the two groups of batteries and between the two groups of batteries; the wiring is provided with three wires, the wiring harness connector 6 includes a terminal socket and an electrode connector arranged in the socket, and the electrode connector in the wiring harness connector 6 is provided with three pairs; the ends of the wiring are respectively welded and fixed to the electrode sockets of the backup battery heating foil 11;

[0025] The wiring harness in the secondary branch line 4 and the wiring harness on the power bus 2 are integrated, the wiring harness in the main branch line 3 and the wiring harness in the power bus 2 are separate, the main branch line 3 is overlapped on the power bus 2, and the overlap between the main branch line 3 and the power bus 2 and between the main cable and the branch cable are wrapped with silicone tape.

[0026] The power bus 2, the main branch line 3, the secondary branch line 4, the main wiring harness 7 and the secondary wiring harness 10 are respectively sleeved and connected with a braided protective cover 13.

[0027] A first rated voltage label 14 is sleeved and connected to the main wiring harness 7 near the plug connector 52, a second rated voltage label 15 is sleeved and connected to the secondary wiring harness 10 near the terminal plug 62, a third rated voltage label 16 is sleeved and connected to the main branch line 3 near the socket 51, a fourth rated voltage label 17 is sleeved and connected to the secondary branch line 4 near the terminal socket 61, and a fifth rated voltage label 18 is sleeved and connected to the power bus 2 near the power plug 1.

[0028] The main battery heating foil 8 and the backup battery heating foil 11 both use heating resistor foils, and are each provided with a temperature control component, which includes a temperature sensor and a switch. The switch is a power-off and power-on switch, and the temperature sensor can be a thermistor. When the temperature inside the main battery heating foil 8 and the backup battery heating foil 11 is lower than the set value, the switch is powered on, and the main battery heating foil 8 and the backup battery heating foil 11 heat up. When the temperature inside the main battery heating foil 8 and the backup battery heating foil 11 is higher than the set value, the power is turned off and the heating stops.

[0029] Preferably, the power bus 2 is electrically connected to a fuse holder 19 , and a fuse is installed in the fuse holder 19 .

[0030] Working principle: The utility model is a battery heating system for fixed-wing general-purpose aircraft. The structure of the battery heating system can be installed in a fixed-wing general-purpose aircraft that has been designed, solving the problem that the aircraft cannot operate due to the low battery temperature after being parked for a short period of time or for a long period of time in a low-temperature environment;

[0031] This battery heating system is only suitable for ground use, because this battery heating system mainly adopts electric heating, and its power supply comes from the power supply system on the ground. It is also convenient to connect the power supply system through the power plug 1. However, when the power plug 1 is connected to electricity, when the main battery 9 and the backup battery 12 in the aircraft are at a low temperature, the main battery heating foil 8 and the backup battery heating foil 11 can generate heat to achieve the heating of the main battery 9 and the backup battery 12, thereby avoiding the problem of the battery being unable to operate due to the low temperature.

[0032] The embodiments are used to illustrate the present invention, but not to limit the present invention. Any person skilled in the art may modify the embodiments without violating the spirit and scope of the present invention, and therefore the scope of protection of the present invention shall be as set forth in the claims of the present invention.

Claims

1. A battery heating system for a fixed-wing general aircraft, comprising a power plug (1), the power plug (1) being electrically connected to a power bus (2), the end of the power bus (2) being electrically connected to a main branch line (3) and a secondary branch line (4), characterized in that: The main branch line (3) and the secondary branch line (4) are respectively connected to a plurality of main wiring harnesses (7) and a secondary wiring harness (10) via a power connector (5) and a wiring harness connector (6); the ends of the main wiring harnesses (7) and the secondary wiring harnesses (10) are respectively electrically connected to a plurality of main battery heating foils (8) and a backup battery heating foil (11); the main battery heating foils (8) are glued and fixed to the side walls around the main battery (9), and the backup battery heating foils (11) are glued and fixed to the two opposite side walls of the backup battery (12).

2. The battery heating system for a fixed-wing general aircraft according to claim 1, characterized in that: The power connector (5) comprises a cylindrical socket (51) and a plug connector (52), the main branch line (3) and the main wiring harness (7) are electrically connected to the socket (51) and the plug connector (52) respectively; the main wiring harness (7) is composed of a main cable and a branch cable, the branch cable is overlapped on the main cable, and the ends of the main cable and the branch cable are respectively welded and fixed to the electrode socket of the main battery heating foil (8); The wiring harness connector (6) comprises a terminal socket (61) and a terminal plug (62), the secondary branch line (4) and the secondary wiring harness (10) are electrically connected to the terminal socket (61) and the terminal plug (62) respectively, the secondary wiring harness (10) on the terminal plug (62) is composed of a plurality of wirings, the ends of which are respectively welded and fixed to the electrode sockets of the backup battery heating foil (11).

3. A battery heating system for a fixed-wing general aircraft according to claim 2, characterized in that: The power bus (2), the main branch line (3), the secondary branch line (4), the main wiring harness (7) and the secondary wiring harness (10) are respectively sleeved and connected with a braided protective sleeve (13).

4. The battery heating system for a fixed-wing general aircraft according to claim 2, characterized in that: A first rated voltage label (14) is sleeved and connected to the main wiring harness (7) near the plug connector (52), a second rated voltage label (15) is sleeved and connected to the secondary wiring harness (10) near the terminal plug (62), a third rated voltage label (16) is sleeved and connected to the main branch line (3) near the socket (51), a fourth rated voltage label (17) is sleeved and connected to the secondary branch line (4) near the terminal socket (61), and a fifth rated voltage label (18) is sleeved and connected to the power bus (2) near the power plug (1).

5. The battery heating system for a fixed-wing general aircraft according to claim 1, characterized in that: The main battery heating foil (8) and the backup battery heating foil (11) both have temperature control components, and the temperature control components include a temperature sensor and a switch.

6. The battery heating system for a fixed-wing general aircraft according to claim 1, characterized in that: The power bus (2) is electrically connected to a fuse holder (19), and a fuse is installed in the fuse holder (19).

Images