Hand-cranking delay start rescue power supply

Abstract

The utility model discloses a hand-cranking delay starting rescue power supply, which comprises a charging circuit of an EC5 interface, a starting circuit and an output circuit, a knob switch is arranged on a casing, the charging circuit comprises a buck-boost module, an input anode is connected with an anode of the EC5 interface, an output anode is connected with an anode of a super capacitor, and an output cathode is connected with a charging switch and then connected with a cathode of the super capacitor; the starting circuit comprises a delayer input anode and a relay input anode which are respectively connected with a super capacitor anode, a delayer input cathode is connected with a starting switch and then connected with a super capacitor cathode, delayer output anodes and cathodes are respectively connected with relay anodes and cathodes, and a relay output anode is connected with an EC5 interface anode; the output circuit comprises a delayer input positive electrode and an output positive electrode which are respectively connected with a super capacitor positive electrode and a relay positive electrode, a relay negative electrode is connected with an output switch and then connected with a super capacitor negative electrode, and a relay output positive electrode is connected with an EC5 interface; the cathode of the EC5 interface is connected with the cathode of the super capacitor to form a loop of the charging circuit, the starting circuit and the output circuit. The product not only exerts the starting capability of the rescue power supply, but also avoids the hidden trouble of the vehicle.

Description

Technical Field

[0001] The utility model relates to the field of outdoor emergency rescue items, in particular to a hand-cranked delayed-start rescue power supply. Background Art

[0002] Nowadays, many necessities of life require electricity, and we are often helpless in the event of an unexpected power outage in the wild. For example, cars and motorcycles cannot be started due to lack of power in the battery, mobile phones are out of power, it is dark and there is no lighting, and it is cold and needs to be ignited for heating, etc. The current rescue power supply is not fully functional, and most of them rely on charging and storage for future use.

[0003] The applicant has previously developed a hand-cranked battery-free rescue power supply (authorization announcement number: CN220527728U), which can generate electricity by hand, has no battery in the casing, provides battery starting for cars and motorcycles, and has lighting and ignition functions. It does not require frequent charging, maintenance and maintenance, and is extremely safe and practical. When using it, it was found that there was no problem starting most 12v cars, but the operation requirements were high, and the battery needed to be disconnected and connected to the starter electrode separately before it could start smoothly. On the one hand, the EC5 charging interface and the EC5 discharge interface are separated. When the car is started after the battery is charged with weak electricity, the starting clip needs to be inserted into the starting interface, which is inconvenient to operate, especially in emergency situations and outdoor harsh environments at night. The difficulty of operation is increased; on the other hand, the starting ability of the supercapacitor cannot be fully utilized. After the battery is charged with weak electricity, it is switched to the starting mode. Since the voltage of the supercapacitor is higher than the battery with insufficient power, the battery will be discharged, and it takes several seconds for the operator to get from the front of the car to the cab to prepare for starting. It may cause the operator to have insufficient starting voltage after getting on the car, and the starting ability of the supercapacitor cannot be fully utilized. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides a hand-cranked delayed-start rescue power supply. The EC5 charging and discharging interfaces are integrated into one, the gear position is selected by a knob switch, and a relay, a delay device and a buzzer are added to the internal circuit. It can not only give full play to the starting ability of the rescue power supply, but also avoid the risk of fault codes in some vehicles.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The hand-cranked delayed start rescue power supply includes a three-phase AC brushless hand-cranked motor, a rectifier bridge, a super capacitor, a voltmeter, a USB interface, and an EC5 interface installed inside and outside the casing. The hand-cranked motor is electrically connected to the rectifier bridge and then connected to the super capacitor to form a loop. The circuit is connected in parallel with the voltmeter, the USB interface, and the EC5 interface circuit. The voltmeter and the USB interface are respectively connected in series with corresponding key switches arranged on the casing. The hand-cranked motor, the rectifier bridge, and the super capacitor are inside the casing. The hand crank handle of the hand-cranked motor is connected to the side wall of the casing. The voltmeter is located on the front of the casing. The USB interface and the EC5 interface are installed on the side wall of the casing, including the charging circuit, the starting circuit and the output circuit of the EC5 interface. A knob switch is installed on the casing, and the knob switch gears include the charging switch, the starting switch and the output switch. The charging circuit includes the buck-boost module input positive electrode connected to the EC5 interface positive electrode, the output positive electrode connected to the supercapacitor positive electrode, the output negative electrode connected to the charging switch and then connected to the supercapacitor negative electrode, and the EC5 interface negative electrode connected to the supercapacitor negative electrode to form a loop; the starting circuit includes the delayer input positive electrode and the relay input positive electrode respectively connected to the supercapacitor positive electrode, the delayer input negative electrode connected to the starting switch and then connected to the supercapacitor negative electrode, the delayer output positive and negative electrodes respectively connected to the relay positive and negative electrodes, the relay output positive electrode connected to the EC5 interface positive electrode, and the EC5 interface negative electrode connected to the supercapacitor negative electrode to form a loop; the output circuit includes the delayer input positive electrode and the output positive electrode respectively connected to the supercapacitor positive electrode and the relay positive electrode, the relay negative electrode connected to the output switch and then connected to the supercapacitor negative electrode, the relay output positive electrode connected to the EC5 interface, and the EC5 interface negative electrode connected to the supercapacitor negative electrode to form a loop.

[0007] A further improvement plan is to include a buzzer, the positive and negative poles of the buzzer are connected to the positive and negative poles of the relay respectively, and a buzzer normally closed switch is set on the circuit and installed on the side wall of the casing. When starting the rescue vehicle, start after hearing the buzzer prompt sound. When starting, the rescue power supply has been discharged for about 1s to 3s (the reaction time between hearing the buzzer prompt sound and starting the car), so the voltage on the starter at the moment of starting is basically guaranteed to be between 12.6v and 14.5v and close to 14.5v, which can give full play to the starting ability of the rescue power supply and avoid the risk of fault codes in some vehicles.

[0008] A further improvement plan is that the knob switch gear includes a lighter switch, both ends of the lighter switch are respectively connected to the positive electrode of the supercapacitor and the positive electrode of the air-blowing double arc lighter, the negative electrode of the air-blowing double arc lighter is connected to the negative electrode of the supercapacitor, and the ignition port of the air-blowing double arc lighter is arranged on the side wall of the casing.

[0009] Another improvement scheme is that the knob switch gear includes a car cigarette lighter socket switch, the two ends of the car cigarette lighter socket switch are respectively connected to the positive pole of the supercapacitor and the positive pole of the car cigarette lighter socket, the negative pole of the car cigarette lighter socket is connected to the negative pole of the supercapacitor, and the car cigarette lighter socket is arranged on the side wall of the casing.

[0010] A further improvement is that a pneumatic double arc lighter circuit is connected in parallel with the USB interface circuit, a lighter switch is connected in series to the pneumatic double arc lighter circuit, and the ignition port and the lighter switch of the pneumatic double arc lighter are arranged on the side wall of the casing. At the same time, a pneumatic double arc lighter and a car cigarette lighter socket switch are provided, the pneumatic double arc lighter realizes the ignition function, the car cigarette lighter socket can match the cigarette butt to light a cigarette, and can also be used as a connection socket for small electrical appliances such as a low-power desk lamp and a small fan, with more functions.

[0011] A further improvement is that the EC5 interface circuit is connected in parallel with a DC5521 interface, a DC5525 interface, and a type C interface circuit, the negative pole of which is connected to the negative pole of the buck-boost module input, and the DC5521 interface, DC5525 interface, and type C interface are arranged on the same side wall of the housing as the EC5 interface. Multiple types of sockets provide greater applicability.

[0012] A further improvement is that the voltage key switch connected in series with the voltmeter and the USB interface key switch connected in series with the USB interface are respectively located on the left and right sides of the voltmeter on the front side of the casing.

[0013] A further improvement is to include a COB desk lamp located on the front of the housing and / or an aluminum alloy reflector cup high-intensity flashlight located on the top of the housing, and the desk lamp key switch and flashlight key switch connected in series to the COB desk lamp and the aluminum alloy reflector cup high-intensity flashlight are respectively arranged on the side wall of the housing. The aluminum alloy reflector cup high-intensity flashlight is used for long-distance illumination, and the COB desk lamp is used for near-side illumination.

[0014] A further improvement is that the circuits of the COB desk lamp and the aluminum alloy reflector cup strong light flashlight are respectively connected in series with voltage divider resistors. The series resistor voltage divider ensures that the 3.7V lamp will not burn out at a voltage of 14.5V.

[0015] A further improvement is that a handle is installed on the left side wall of the housing, and the handle is rotatably connected to the housing, so that it is convenient to carry and can be folded against the housing without taking up space. Beneficial Effects

[0016] (1) The EC5 interface of this device can meet the battery power shortage of cars and motorcycles. The USB can be used to charge mobile phones and walkie-talkies. The car cigarette lighter socket can output a voltage of 3-14.5V for micro fans, lighting and other low-power electrical appliances, and has strong applicability. COB desk lamps and aluminum alloy reflector cup strong light flashlights are used for dark lighting, and are controlled by separate switches. Blow-type double arc lighters, blow to ignite, and enhance functions.

[0017] (2) The internal circuit of this device is equipped with a timer, a pull-in relay and a buzzer. The maximum voltage of the rescue power supply when fully charged is 14.5V. It will not discharge instantly when connected in parallel with the battery. After turning on the start switch of the rescue power supply, the timer will work first, that is, delay for 15s (giving the driver time to get on the car), and then discharge for 10s (stop discharging after 10s). At the moment of discharge, the relay and buzzer work at the same time. When the buzzer prompt sound is heard, the device will start again. When the rescue power supply is started, it has been discharged for about 1s to 3s (the reaction time from hearing the buzzer prompt sound to starting the car). Therefore, the voltage on the starter at the moment of starting is basically guaranteed to be between 12.6v and 14.5v and close to 14.5v, which can give full play to the starting ability of the rescue power supply and avoid the risk of fault codes in some vehicles.

[0018] (3) Originally, the battery charging and discharging were two independent EC5 interfaces. When the rescue power supply needs to be charged but the hand-cranked generator is not used, two EC5 interfaces need to be plugged in and out, which increases the operation time for users in the northeast region, especially in winter. Now, through circuit improvement and optimization, 4 gears of rotary selection are added to realize the use of one EC5 interface for charging and discharging. This not only makes full use of the space, but also brings great convenience to the operation, improves the efficiency of use, avoids the use of programming circuits, and other complex operation sequences such as single-click, double-click, long-press, and short-press, and reduces the probability of misoperation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the structure of the embodiment 1, wherein Figure a is a front view, Figure b is a left view, Figure c is a right view, and Figure d is a top view;

[0020] Figure 2 This is a circuit diagram of Embodiment 1;

[0021] Figure 3 It is a schematic diagram of the multi-faceted structure of the second embodiment, wherein Figure a is a front view, Figure b is a left view, Figure c is a right view, and Figure d is a top view;

[0022] Figure 4 This is a circuit diagram of Embodiment 2. DETAILED DESCRIPTION Embodiment 1

[0023] like Figure 1 , Figure 2As shown, the utility model includes a three-phase AC brushless hand-cranked motor 2, a rectifier bridge 3, a super capacitor 4, a delay device 11, a relay 12 and a buck-boost module 17 installed in a casing 1, and a voltmeter 5, a COB desk lamp 6, an aluminum alloy reflective cup high-intensity flashlight 7, a USB interface 8, an EC5 interface 9, a knob switch 10, a buzzer 13, a puff double arc lighter 15, a DC5521 interface 18, a DC5525 interface 19, a type C interface 20 and corresponding switches are installed on the outer wall of the casing. The hand-cranked motor 2 is electrically connected to the rectifier bridge 3 and then to the supercapacitor 4 to form a loop. The circuit is connected in parallel with a voltmeter 5, a COB desk lamp 6, an aluminum alloy reflective cup strong light flashlight 7, a USB interface 8, an EC5 interface 9, a blowing double arc lighter 15, a DC5521 interface 18, a DC5525 interface 19, and a typec interface 20 circuit. The hand crank handle 21 of the hand-cranked motor 2 is connected to the right side wall of the casing. The hand crank handle 21 is foldable, and the L shape can be rotated into a horizontal U shape. The EC5 interface 9 is located at the top of the right side wall of the casing. The DC5521 interface 18, the DC5525 interface 19, the type The c interface 20 is arranged side by side at the bottom, the cigarette lighting port of the air-blowing double arc lighter 15 is arranged at the lower part of the right side wall of the casing, the voltmeter 5 is located at the front of the casing, the COB desk lamp 6 is located on the casing below the voltmeter 6, the aluminum alloy reflective cup high-intensity flashlight 7 is located on the top surface of the casing, the USB interface 8 and the knob switch 10 are located at the upper part of the left side wall of the casing, and a rotatably connected handle 22 is also installed at the lower part of the left side wall of the casing. The buzzer normally closed switch 14 is installed between the USB interface 8 and the knob switch 10, and the upper part next to the handle is the flashlight button switch 71 connected in series with the aluminum alloy reflective cup high-intensity flashlight, and the lower part is the buzzer 13. The voltage button switch 51 connected in series with the voltmeter 5 and the USB interface button switch 81 connected in series with the USB interface 8 are respectively located on the left and right sides of the voltmeter on the front side of the casing, and the desk lamp button switch 61 connected in series with the COB desk lamp 6 is on the side of the COB desk lamp on the front side of the casing.

[0024] The knob switch 10 has four gears, corresponding to the charging circuit, starting circuit, output circuit and blowing double arc lighter 15 opening circuit of the EC5 interface respectively. The knob switch 10 gears include charging switch 10-1, lighter switch 10-2, starting switch 10-3, and output switch 10-4. The charging circuit includes a buck-boost module 17 whose input positive pole is connected to the positive pole of the EC5 interface 9, whose output positive pole is connected to the positive pole of the supercapacitor 4, whose output negative pole is connected to the charging switch 10-1 and then to the negative pole of the supercapacitor 4, and whose negative pole is connected to the negative pole of the EC5 interface 9 to form a loop; the starting circuit includes a delay device 11 whose input positive pole and a relay 12 whose input positive pole are respectively connected to the positive pole of the supercapacitor 4, whose input of the delay device 11 is connected to the positive pole of the supercapacitor 4, and whose input of the delay device 11 is connected to the positive pole of the supercapacitor 4. The negative pole is connected to the start switch 10-3 and then connected to the negative pole of the supercapacitor 4. The positive and negative poles of the output of the timer 11 are respectively connected to the positive and negative poles of the relay 12. The positive and negative poles of the buzzer 13 are respectively connected to the positive and negative poles of the relay 12. The circuit is provided with a buzzer normally closed switch 14. The positive pole of the output of the relay 12 is connected to the positive pole of the EC5 interface 9, and the negative pole of the EC5 interface 9 is connected to the negative pole of the supercapacitor 4 to form a loop; the output circuit includes the input positive level of the timer 11, the output positive pole is respectively connected to the positive pole of the supercapacitor 4 and the positive pole of the relay 12, the negative pole of the relay 12 is connected to the output switch 10-4 and then connected to the negative pole of the supercapacitor 4, the positive pole of the output of the relay 12 is connected to the EC5 interface 9, and the negative pole of the EC5 interface 9 is connected to the negative pole of the supercapacitor 4 to form a loop. The pneumatic double arc lighter 15 starts the circuit, and the two ends of the lighter switch 10-2 are respectively connected to the positive pole of the supercapacitor 4 and the positive pole of the pneumatic double arc lighter 15, and the negative pole of the pneumatic double arc lighter 15 is connected to the negative pole of the supercapacitor 4.

[0025] The circuits of the COB desk lamp 6 and the aluminum alloy reflector cup strong light flashlight 7 are respectively connected in series with a voltage dividing resistor 23. The series resistor voltage dividing ensures that the 3.7V lamp will not burn out at a voltage of 14.5V.

[0026] Motor vehicle starting power supply (2000cc and below motorcycles, 2.0T and below cars, fully charged 14.5v can be started without a battery. If the battery is low, parallel batteries can start cars and motorcycles with larger displacements). It is a must-have for outdoor emergencies. It does not have a battery and does not require charging or maintenance. The normal starting voltage of a car is 12.6v~14.5v (battery voltage is low if it is lower than 12v).

[0027] If the rescue power supply voltage is exactly 12.6V~14.5V, and the voltage of the depleted battery is between 6V and 11V, after the rescue power supply is connected in parallel with the battery, the driver will take about 10s to 15s to prepare for starting from the front of the vehicle to the cab. During starting, the rescue power supply voltage will drop to 12V or lower than 12V due to charging the battery, and the vehicle will either fail to start or start with great difficulty, and the starting ability of the rescue power supply cannot be fully utilized.

[0028] If the rescue power supply voltage is higher than 14.5v (such as 15v~16v), the instantaneous voltage in parallel with the battery is significantly higher than the starting voltage, which may generate a fault code and pose a risk. By adding a delayer, a pull-in relay and a buzzer to the internal circuit, the maximum voltage of the rescue power supply when fully charged is 14.5v. It will not discharge instantly when connected in parallel with the battery. After turning on the start switch of the rescue power supply, the delayer will work first, that is, delay for 15s (giving the driver time to prepare to get on the car) and then discharge for 10s (stop discharging after 10s). At the moment of discharge, the relay and buzzer will work at the same time. When the buzzer prompt sound is heard, it will start again. When starting, the rescue power supply has been discharged for about 1s~3s (the reaction time between hearing the buzzer prompt sound and starting the car). Therefore, the voltage on the starter at the moment of starting is basically guaranteed to be between 12.6v~14.5v and close to 14.5v, which can give full play to the starting ability of the rescue power supply and avoid the risk of fault codes in some vehicles. By adding a pickup relay, a delay device and a buzzer to the internal circuit, not only can the starting capability of the rescue power supply be fully utilized, but also the risk of fault codes in some vehicles can be avoided.

[0029] Originally, the battery charging and discharging were two independent EC5 interfaces. When the rescue power supply needs to be charged but the hand-cranked generator is not wanted, two EC5 interfaces need to be plugged and unplugged, which increases the operation time for users in the northeast region in winter. Now, through circuit improvement and optimization, 4-speed rotary selection gears are added to realize charging and discharging with a common EC5 interface. The function of the 4-speed rotary selection gear switch is: when the switch is in gear 0, the four input and output interfaces of type c, DC5521, DC5525, and EC5 are all in the closed state. When the switch is turned to 1 "charge", the four interfaces can be charged. When it is turned to 2 "lighter", the blow double arc lighter 15 has output. When it is turned to 3 "start", the delayer starts working for 15s, and the relay and buzzer work at the same time and discharge for 10s before turning off the output. When it is turned to 4 "output", all four interfaces can output. This not only makes full use of the space, but also brings great convenience to the operation, improves the efficiency of use, avoids the use of programming circuits, and requires a more complicated operation sequence such as single-click, double-click, long-press, short-press, etc. for a switch, and also reduces the probability of misoperation. Embodiment 2

[0030] like Figure 3 , Figure 4As shown, the pneumatic double arc lighter circuit of this embodiment is connected in parallel with the USB interface circuit, and the pneumatic double arc lighter circuit is connected in series with the lighter switch 10-2. The ignition port of the pneumatic double arc lighter 15 and the lighter switch 10-2 are arranged at the lower right side wall of the housing 1. A car cigarette lighter socket 16 is arranged at the lower left side wall of the housing, and the knob switch 10 gears include a car cigarette lighter socket switch 10-5. The two ends of the car cigarette lighter socket switch 10-5 are respectively connected to the positive electrode of the super capacitor 4 and the positive electrode of the car cigarette lighter socket 16, and the negative electrode of the car cigarette lighter socket 16 is connected to the negative electrode of the super capacitor 4. The rest is the same as in the first embodiment. The addition of the car cigarette lighter can reach 120 watts, and the voltage can reach 3V-14.5V output, which is convenient for connecting small household appliances such as electric fans and table lamps to power supply.

[0031] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A hand-cranked delayed start rescue power supply, comprising a three-phase AC brushless hand-cranked motor (2), a rectifier bridge (3), a super capacitor (4), a voltmeter (5), a USB interface (8), and an EC5 interface (9) installed inside and outside a casing (1), wherein the hand-cranked motor (2) is electrically connected to the rectifier bridge (3) and then connected to the super capacitor (4) to form a loop, the circuit is connected in parallel with the voltmeter (5), the USB interface (8), and the EC5 interface (9) circuit, the voltmeter (5) and the USB interface (8) are respectively connected in series with corresponding key switches arranged on the casing, the hand-cranked motor (2), the rectifier bridge (3), and the super capacitor (4) are inside the casing, the hand crank (21) of the hand-cranked motor (2) is connected to the side wall of the casing, the voltmeter (5) is located at the front of the casing, and the USB interface (8) and the EC5 interface (9) are installed on the side wall of the casing, characterized in that: The invention comprises a charging circuit, a starting circuit and an output circuit of an EC5 interface. A rotary switch (10) is installed on a housing (1). The gears of the rotary switch (10) include a charging switch (10-1), a starting switch (10-3) and an output switch (10-4). The charging circuit comprises a buck-boost module (17) whose input positive pole is connected to the positive pole of the EC5 interface (9), whose output positive pole is connected to the positive pole of a supercapacitor (4), whose output negative pole is connected to the charging switch (10-1) and then to the negative pole of the supercapacitor (4), and whose negative pole is connected to the negative pole of the supercapacitor (4) to form a loop. The starting circuit comprises a delay device (11) whose input positive pole and a relay (12) whose input positive pole are respectively connected to the positive pole of the supercapacitor (4), and whose output positive pole is connected to the positive pole of the supercapacitor (4). The negative pole of the input of the timer (11) is connected to the start switch (10-3) and then connected to the negative pole of the supercapacitor (4); the positive pole of the output of the timer (11) is connected to the positive pole of the relay (12) respectively; the positive pole of the output of the relay (12) is connected to the positive pole of the EC5 interface (9); the negative pole of the EC5 interface (9) is connected to the negative pole of the supercapacitor (4) to form a loop; the output circuit comprises the positive pole of the input of the timer (11) and the positive pole of the output, which are connected to the positive pole of the supercapacitor (4) and the positive pole of the relay (12) respectively; the negative pole of the relay (12) is connected to the output switch (10-4) and then connected to the negative pole of the supercapacitor (4); the positive pole of the output of the relay (12) is connected to the EC5 interface (9); the negative pole of the EC5 interface (9) is connected to the negative pole of the supercapacitor (4) to form a loop.

2. The hand-cranked delayed start rescue power supply according to claim 1 is characterized in that: The device comprises a buzzer (13), the positive and negative electrodes of the buzzer (13) are respectively connected to the positive and negative electrodes of the relay (12), and a buzzer normally closed switch (14) is arranged on the circuit and is installed on the side wall of the casing.

3. The hand-cranked delayed start rescue power supply according to claim 1 is characterized in that: The knob switch (10) comprises a lighter switch (10-2), two ends of the lighter switch (10-2) are respectively connected to the positive electrode of the supercapacitor (4) and the positive electrode of the air-blowing double-arc lighter (15), the negative electrode of the air-blowing double-arc lighter (15) is connected to the negative electrode of the supercapacitor (4), and the ignition port of the air-blowing double-arc lighter (15) is arranged on the side wall of the housing (1).

4. The hand-cranked delayed start rescue power supply according to claim 1 is characterized in that: The knob switch (10) comprises a vehicle cigarette lighter socket switch (10-5), two ends of the vehicle cigarette lighter socket switch (10-5) are respectively connected to the positive electrode of the super capacitor (4) and the positive electrode of the vehicle cigarette lighter socket (16), the negative electrode of the vehicle cigarette lighter socket (16) is connected to the negative electrode of the super capacitor (4), and the vehicle cigarette lighter socket (16) is arranged on the side wall of the housing.

5. The hand-cranked delayed start rescue power supply according to claim 4 is characterized in that: A pneumatic double-arc lighter circuit is connected in parallel with the USB interface circuit, and a lighter switch (10-2) is connected in series to the pneumatic double-arc lighter circuit. The ignition port of the pneumatic double-arc lighter (15) and the lighter switch (10-2) are arranged on the side wall of the housing (1).

6. The hand-cranked delayed start rescue power supply according to claim 1, characterized in that: A DC5521 interface, a DC5525 interface, and a type C interface circuit are connected in parallel with the EC5 interface circuit. The negative electrodes of the DC5521 interface, the DC5525 interface, and the type C interface circuit are connected to the negative electrode of the buck-boost module input. The DC5521 interface (18), the DC5525 interface (19), and the type C (20) interface are arranged on the same side wall of the housing as the EC5 interface (9).

7. The hand-cranked delayed start rescue power supply according to claim 1 is characterized in that: The voltage key switch (51) connected in series with the voltage meter (5) and the USB interface key switch (81) connected in series with the USB interface (8) are respectively located on the left and right sides of the voltage meter on the front side of the housing.

8. The hand-cranked delayed start rescue power supply according to claim 1, characterized in that: The invention comprises a COB desk lamp (6) located on the front surface of the casing and / or an aluminum alloy reflector cup high-intensity flashlight (7) located on the top surface of the casing, wherein the COB desk lamp (6) and the aluminum alloy reflector cup high-intensity flashlight (7) are respectively connected in series with a desk lamp key switch (61) and a flashlight key switch (71) which are respectively arranged on the casing (1).

9. The hand-cranked delayed start rescue power supply according to claim 8, characterized in that: The circuits of the COB desk lamp (6) and the aluminum alloy reflector cup high-intensity flashlight (7) are respectively connected in series with a voltage-dividing resistor (23).

10. The hand-cranked delayed start rescue power supply according to claim 1, characterized in that: A handle (22) is mounted on the left side wall of the housing (1), and the handle is rotatably connected to the housing.

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