Mobile standby power supply circuit and train power supply device

Abstract

The utility model provides a mobile standby power supply circuit and a train power supply device. The mobile standby power supply circuit comprises an inversion module, a time delay module and an uninterruptible power supply module. A first end of the inversion module is used for accessing direct current, a second end of the inversion module is connected with a first end of the time delay module, and a second end of the time delay module is connected with the uninterruptible power supply module. Time delay is carried out through the time delay module, and the occurrence probability of the situation that data cannot be recorded or data loss is caused when starting is poor after power-on is carried out again in order to prevent the situation that the equipment does not complete the power-on and power-off functions after power failure is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of standby power supply, especially relates to a mobile standby power supply circuit and train power supply device. BACKGROUND

[0002] The heavy load train generally refers to the large special freight car marshalling on the transportation line of freight volume to and from the collection, adopts the double machine or multi-machine traction and runs one kind of super long, super heavy freight train, is one of important ways to improve the freight transport capacity and efficiency.

[0003] In prior art, due to the safety problem caused by excessive longitudinal force of heavy load train, the longitudinal force of heavy load train needs to be researched to reduce the influence of longitudinal force impulse on train safe operation. Therefore, the kinetic test equipment can be installed to collect the data when the train is running, to serve as an important basis for researching train dynamics.

[0004] However, due to the abnormal power-off situation, the kinetic test equipment is prone to power failure, which causes serious consequences such as damage to sensitive components, information loss and disk program being erased when power is turned on again. UTILITY MODEL CONTENT

[0005] Therefore, it is necessary to provide a mobile standby power supply circuit and train power supply device for the above technical problems.

[0006] A mobile standby power supply circuit comprises an inverter module, a delay module and an uninterruptible power supply module.

[0007] The first end of the inverter module is used for connecting DC power, the second end of the inverter module is connected with the first end of the delay module, and the second end of the delay module is connected with the uninterruptible power supply module.

[0008] In one embodiment, the delay module comprises a control switch and a delay unit, the first end of the control switch is connected with the second end of the inverter module, the second end of the control switch is connected with the first end of the delay unit, and the delay unit is connected with the first end of the uninterruptible power supply module.

[0009] In one embodiment, the delay unit comprises a delay relay, the first end of the delay relay is connected with the second end of the control switch, and the second end of the delay relay is connected with the first end of the uninterruptible power supply module.

[0010] In one embodiment, the control switch comprises one of an air switch or a circuit breaker.

[0011] In one of the embodiments, the first output of the UPS module is an AC output, and the second output of the UPS module is a serial bus output.

[0012] In one of the embodiments, the first output of the UPS module is used to connect with an AC input of an industrial computer, and the second output of the UPS module is used to connect with a serial bus input of the industrial computer.

[0013] In one of the embodiments, the second output of the UPS module is also used to connect with a switch.

[0014] In one of the embodiments, the second output of the UPS module is used to connect with a network connection device.

[0015] In one of the embodiments, a switching power supply is further included, and the second output of the UPS module is connected with the switching power supply.

[0016] A train power supply device includes the mobile backup power supply circuit.

[0017] The mobile backup power supply circuit and the train power supply device convert DC 110V into AC 220V through the inverter module, delay through the delay module, and supply the AC 220V to the load after voltage stabilization through the UPS power supply. In this way, the probability of the occurrence of the situation that the data record is not recorded or data is lost when the device is not powered on again due to the failure of the switching operation of the device after power failure is effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A structural block diagram of the mobile backup power supply circuit in one of the embodiments;

[0019] Figure 2 A circuit structural schematic diagram of the mobile backup power supply circuit in one of the embodiments;

[0020] Figure 3 A circuit structural schematic diagram of the inverter module in one of the embodiments. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0022] Embodiment One

[0023] In this embodiment, as shown in the structural block diagram of the mobile backup power supply circuit in one of the embodiments, Figure 1As shown, a mobile backup power supply circuit is provided, which comprises an inverter module, a delay module and an uninterruptible power supply module;

[0024] A first end of the inverter module is used for accessing direct current, a second end of the inverter module is connected with a first end of the delay module, and a second end of the delay module is connected with the uninterruptible power supply module.

[0025] In this embodiment, the first end, i.e. the input end, of the inverter module is used for accessing direct current 110V (DC 110V). After the direct current 110V is input into the inverter module, the direct current 110V is inverted into alternating current 220V by the inverter module. After the second end, i.e. the output end, of the inverter module outputs the alternating current 220V, the alternating current 220V is input into the first end, i.e. the input end, of the delay module.

[0026] Specifically, as shown in FIG. 1, Figure 3As shown, the inverter module includes a battery B1, a diode D2, a light-emitting diode D1, a first resistor R1, a second resistor R2, a master chip IC1, a third resistor R3, a fourth resistor R4, a first field effect transistor Q1, a second field effect transistor Q2, a transformer T1, a fifth resistor R5 and a potentiometer R6. The positive pole of the battery B1 is connected to the positive pole of the diode D2, and the positive pole of the battery B1 is also connected to the transformer T1. The negative pole of the diode D2 is connected to the first resistor R1 and the second resistor R2, respectively, and the positive pole of the light-emitting diode D1 is connected to the second resistor R2, and the negative pole of the light-emitting diode D1 is grounded. The signal input end of the master chip IC1 is connected to the first resistor R1, the first enable end and the second enable end of the master chip IC1 are connected to the first resistor R1, the first trigger end of the master chip IC1 is connected to the first resistor R1, the first oscillation end of the master chip IC1 is connected to a capacitor C2, the other end of the capacitor C2 is connected to the potentiometer R6, the second oscillation end of the master chip IC1 is connected to the fifth resistor R5, the fifth resistor R5 is also connected to the potentiometer R6, and the common end of the master chip IC1 is connected to the potentiometer R6 and the capacitor C2, respectively. The power supply ground end of the master chip IC1 is grounded, the second trigger end of the master chip IC1 is connected to the trigger input end of the master chip IC1, the reset end of the master chip IC1 is grounded, the first oscillation signal output end of the master chip IC1 is connected to the gate of the first field effect transistor Q1, the first oscillation signal output end of the master chip IC1 is connected to the gate of the first field effect transistor Q1, and the gate of the first field effect transistor Q1 is connected to the third resistor R3, the second oscillation signal output end of the master chip IC1 is connected to the gate of the second field effect transistor Q2, the second oscillation signal output end of the master chip IC1 is connected to the gate of the second field effect transistor Q2, and the gate of the second field effect transistor Q2 is connected to the fourth resistor R4, the source of the first field effect transistor Q1 is connected to the source of the second field effect transistor Q2, the drain of the first field effect transistor Q1 is connected to the primary winding of the transformer T1, the drain of the second field effect transistor Q2 is connected to the primary winding of the transformer T1, and the negative pole of the battery B1 is connected to the source of the first field effect transistor Q1 and the source of the second field effect transistor Q2, respectively. The secondary winding of the transformer is connected to the delay module.

[0027] The 10th pin (the first oscillation signal output end) of the master control chip IC1 is connected with the gate of the first field effect transistor Q1, the 11th pin (the second oscillation signal output end) of the master control chip IC1 is connected with the gate of the second field effect transistor Q2, and the 10th pin and the 11th pin of the master control chip IC1 output two pulse signals with opposite phases. After the multi-vibrator in the master control chip IC1 works, two low-frequency oscillation signals with opposite phases and equal amplitudes are output from the 10th pin and the 11th pin, and the signals are amplified by the first field effect transistor Q1 and the second field effect transistor Q2 (Q1 and Q2 are alternately turned on) to generate an alternating voltage of 220V at the secondary winding of the transformer T1. When the 10th pin is in a high pulse, the current passes through the upper half of the primary winding of the transformer T1 to output a positive half cycle of the alternating voltage. When the 11th pin is in a high pulse, the current passes through the lower half of the primary winding of the transformer T1 in the opposite direction to output a negative half cycle of the alternating voltage. The first field effect transistor Q1 and the second field effect transistor Q2 are alternately and continuously turned on to output the alternating voltage of 220V through the transformer T1.

[0028] In the embodiment, the uninterruptible power supply module includes a UPS (Uninterruptible Power Supply) power supply. The UPS power supply is an uninterruptible power supply containing an energy storage device. After the inverter module inverts the direct current of 110V into an alternating voltage of 220V, the delay module is used for delaying, so as to reduce the probability of the occurrence of the situation that the data is not recorded or the data is lost when the equipment is powered on again after the power is off and the switching operation of the equipment is not completed. Then, the UPS power supply supplies the alternating voltage of 220V to the load after the alternating voltage of 220V is stabilized. At the same time, the UPS power supply charges the internal energy storage device, so that the internal stored energy is continuously supplied to the load to maintain the normal work of the load and protect the software and hardware of the load from being damaged.

[0029] In one embodiment, the delay module includes a control switch and a delay unit. The first end of the control switch is connected with the second end of the inverter module, the second end of the control switch is connected with the first end of the delay unit, and the delay unit is connected with the first end of the uninterruptible power supply module.

[0030] In the embodiment, the control switch is used to cut off the device when the device fails, thereby protecting the device. In one embodiment, the control switch comprises one of an air switch or a circuit breaker. When the inverter module inverts the direct current 110V into the alternating current 220V, the electric energy flows through the control switch and the delay unit, and is delayed by the delay unit. Moreover, when the device fails to complete the shutdown function after the power is cut off, and the device fails to start properly after being powered on again, the setting of the delay unit effectively reduces the probability of the occurrence of the situation that the data is not recorded or the data is lost after the power is cut off.

[0031] In one embodiment, the delay unit comprises a delay relay, a first end of the delay relay is connected with the second end of the control switch, and a second end of the delay relay is connected with the first end of the uninterrupted power supply module.

[0032] In the embodiment, when the situation that the device fails to complete the shutdown function after the power is cut off and the device fails to start properly after being powered on again occurs, the two ends of the delay relay are connected with the control switch and the uninterrupted power supply module respectively, so that the device continues to work after a certain time of delay, thereby effectively reducing the probability of the occurrence of the situation that the data is not recorded or the data is lost after the power is cut off.

[0033] In one embodiment, the first output end of the uninterrupted power supply module is an alternating current output end, and the second output end of the uninterrupted power supply module is a serial bus output end.

[0034] In the embodiment, the first output end of the uninterrupted power supply module is directly connected with the load, and the first output end of the uninterrupted power supply module outputs the alternating current 220V to the load, so that the load works normally. The second output end of the uninterrupted power supply module is connected with the load through the universal serial bus (USB), and the second output end of the uninterrupted power supply module outputs the alternating current 220V to the load through the USB, so that the load works normally.

[0035] In one embodiment, the first output end of the uninterrupted power supply module is used to be connected with the alternating current input end of the industrial computer, and the second output end of the uninterrupted power supply module is used to be connected with the serial bus input end of the industrial computer.

[0036] In the embodiment, the load includes an industrial computer, the industrial computer has an AC input end and a serial bus input end, the AC input end of the industrial computer is connected with the first output end (AC output end) of the uninterruptible power supply module, and the serial bus input end of the industrial computer is connected with the second output end (serial bus output end) of the uninterruptible power supply module. In some embodiments, the load further includes a collection instrument, the collection instrument is connected with the industrial computer, when the collection instrument collects data, the industrial computer receives the data collected by the collection instrument and processes the data.

[0037] In one embodiment, the second output end of the uninterruptible power supply module is further used for being connected with a switch.

[0038] In the embodiment, the load further includes a switch, the switch is connected with the second output end (serial bus output end) of the uninterruptible power supply module. In some embodiments, the switch, the collection instrument and the industrial computer are networked, so that the switch, the collection instrument and the industrial computer realize mutual communication and share information and data.

[0039] In one embodiment, the second output end of the uninterruptible power supply module is further used for being connected with a network connection device.

[0040] In the embodiment, the load further includes a network connection device, which can be understood as a router or a gateway, the network connection device is connected with the second output end (serial bus output end) of the uninterruptible power supply module. In some embodiments, the switch, the collection instrument, the industrial computer and the network connection device are networked, so that the switch, the collection instrument, the industrial computer and the network connection device realize mutual communication and share information and data.

[0041] In one embodiment, the mobile backup power supply circuit further includes a switching power supply, the second output end of the uninterruptible power supply module is connected with the switching power supply.

[0042] In the embodiment, the switching power supply (DC 24V) is used for outputting stable direct current voltage, the second output end (serial bus output end) of the uninterruptible power supply module is connected with the input end of the switching power supply, and the output end of the switching power supply is used for being connected with the network connection device and the switch, so as to provide stable direct current voltage for the network connection device and the switch. When the second output end of the uninterruptible power supply module outputs AC 220V, the AC 220V is switched into a high-frequency pulse signal through the switching power supply. Then, the high-frequency pulse signal is transformed through a transformer or an inductor and processed through a filter circuit, and finally, stable direct current output voltage 24V is obtained, so as to provide stable direct current voltage for the network connection device and the switch.

[0043] Embodiment two

[0044] In the prior art, the following abnormal power-off situations occur: first, the force measuring locomotive needs to connect or disconnect the battery during the process of preparation in the warehouse or for some reason; second, the HXD1 locomotive loses power due to the train being subjected to phase separation and speed during the process of running; third, the power grid quality problem of continuous overvoltage or under-voltage or even voltage interruption causes the storage device to lose power; and fourth, the power-off time is short, the industrial computer is not completely shut down, and the industrial computer is powered again, which causes startup failure or the acquisition device cannot be detected. The above situations may cause serious consequences such as damage to sensitive components, loss of information, and disk program being erased.

[0045] In order to avoid unnecessary losses, as shown in Figure 2 , a mobile backup power supply circuit is provided, which includes:

[0046] The UPS is an uninterruptible power supply containing an energy storage device and an inverter as the main component. The UPS is installed on the dynamic test locomotive to store the industrial computer and control the startup and shutdown of the industrial computer. When the power supply is normal, the UPS converts alternating current into direct current, and then converts the direct current into stable and impurity-free alternating current to supply the load. When the power supply is abnormal, the rectifier circuit of the UPS will be turned off, and the corresponding circuit will convert the direct current 110V of the storage battery into stable and impurity-free 220V power to continue to supply the load.

[0047] After the power supply is powered off, in order to prevent the device from not completing the startup and shutdown function, causing startup failure after power-on again, a delay relay (for example, 5 minutes) is installed on the UPS. When the device does not complete the startup and shutdown function or the device startup is poor, the data record is not recorded or data loss is caused.

[0048] In this embodiment, the UPS has a small size, which can save the limited space on the locomotive, and has powerful functions, which can be widely used in various low-voltage electrical equipment. If the device needs to be moved, the backup power supply can be moved, reducing the workload of circuit construction, realizing uninterrupted power supply to the industrial computer, and effectively preventing data loss.

[0049] Embodiment Three

[0050] In this embodiment, a train power supply device is provided, which includes the mobile backup power supply circuit described in the above embodiments.

[0051] Any technical features in the above-described embodiments can be combined in any manner, and for the sake of brevity, not all possible combinations are described, however, as long as there is no conflict, any combination of the above technical features is deemed to be within the scope of the present disclosure. It should be noted that "in an embodiment of the present application", "for example", "for instance", and the like in the present application are intended to serve as examples of the present application, and are not intended to limit the present application.

[0052] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A mobile backup power supply circuit, characterized by, Comprising: an inverter module, a delay module and an uninterruptible power supply module; a first end of the inverter module is used for connecting to direct current, a second end of the inverter module is connected with a first end of the delay module, a second end of the delay module is connected with the uninterruptible power supply module.

2. The mobile backup power supply circuit of claim 1, wherein, The delay module comprises a control switch and a delay unit, a first end of the control switch is connected with a second end of the inverter module, a second end of the control switch is connected with a first end of the delay unit, the delay unit is connected with a first end of the uninterruptible power supply module.

3. The mobile backup power supply circuit of claim 2, wherein, The delay unit comprises a delay relay, a first end of the delay relay is connected with a second end of the control switch, a second end of the delay relay is connected with a first end of the uninterruptible power supply module.

4. The mobile backup power supply circuit of claim 2, wherein, The control switch comprises one of an air switch or a circuit breaker.

5. The mobile backup power supply circuit of claim 1, wherein, A first output end of the uninterruptible power supply module is an alternating current output end, a second output end of the uninterruptible power supply module is a serial bus output end.

6. The mobile backup power supply circuit of claim 1, wherein, The first output end of the uninterruptible power supply module is used for connecting with an alternating current input end of an industrial computer, the second output end of the uninterruptible power supply module is used for connecting with a serial bus input end of the industrial computer.

7. The mobile backup power supply circuit of claim 1, wherein, The second output end of the uninterruptible power supply module is also used for connecting with a switch.

8. The mobile backup power supply circuit of claim 1, wherein, The second output end of the uninterruptible power supply module is used for connecting with a network connection device.

9. Mobile backup power supply circuit according to any of claims 1-8, characterized in that, Further comprising a switching power supply, the second output end of the uninterruptible power supply module is connected with the switching power supply.

10. A train power supply apparatus characterized by comprising: Comprising the mobile backup power supply circuit as claimed in any one of claims 1-9.

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