Electrical control circuit suitable for power battery box mobile energy storage type charging vehicle

Abstract

The utility model discloses an electrical control circuit suitable for a power battery box mobile energy storage type charging vehicle. Each standard power battery box is used as an independent energy storage system through a first high-voltage loop, and each power battery box can be charged through a direct-current charging pile; the second high-voltage loop is electrically connected with the first high-voltage loop and is used for providing power input for the DC / DC charger and providing power input for the low-voltage part of the system; the circuit further comprises a first low-voltage loop used for converting the input voltage of the direct-current bus into DCV voltage and providing power input for the whole low-voltage system. And the second low-voltage loop is electrically connected with the first low-voltage loop and is used for controlling the discharging operation of the power battery and monitoring the state of each power battery box. The power standard battery box with degraded performance can be used as an energy storage battery box on the basis of not changing the structure, and is combined with a DC / DC discharge charger to supply new energy with charging requirements.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrical control processing, and in particular relates to an electrical control circuit suitable for a mobile energy storage charging vehicle with a power battery box. Background Art

[0002] New energy vehicles refer to vehicles that use unconventional automotive fuels as their power source (or use conventional automotive fuels and adopt new on-board power devices), and integrate advanced technologies in vehicle power control and drive to form vehicles with advanced technical principles, new technologies, and new structures.

[0003] However, the problem of charging and replenishing new energy vehicles has always troubled new energy vehicle owners and restricted the rapid development of the new energy industry. For example, the charging and replenishing devices cannot be moved, and the standard power battery boxes with performance degradation need to be changed in structure before they can be used as energy storage battery boxes.

[0004] Therefore, in view of the technical problems and defects mentioned above, it is urgent to design and develop an electrical control circuit suitable for a mobile energy storage charging vehicle with a power battery box. Utility Model Content

[0005] In order to overcome the shortcomings and difficulties of the above-mentioned existing technologies, the purpose of the present invention is to provide an electrical control circuit suitable for a mobile energy storage charging vehicle using a power battery box, so that a standard power battery box with declining performance can be used as an energy storage battery box without changing the structure, and combined with a DC / DC discharge charger, it can be used for new energy vehicles with charging needs.

[0006] The purpose of the utility model is to provide an electrical control circuit suitable for a mobile energy storage charging vehicle with a power battery box.

[0007] The purpose of the utility model is achieved as follows: the circuit includes a first high-voltage circuit, and a second high-voltage circuit, a first low-voltage circuit, and a second low-voltage circuit electrically connected to the first high-voltage circuit respectively;

[0008] The first high-voltage circuit is used to treat each standard power battery box as an independent energy storage system, and each power battery box can be charged through a DC charging pile, and the discharge end of the power battery box; the second high-voltage circuit is used to provide power input for the DC / DC charger, and also provides a second high-voltage circuit for power input for the low-voltage part of the system;

[0009] The first low-voltage circuit is used to convert the input voltage of the DC bus into DCV voltage to provide power input for the entire low-voltage system; the second low-voltage circuit is used to control the discharge operation of the power battery and monitor the status of each power battery box.

[0010] Furthermore, at least one power battery box is provided in the first high-voltage circuit; the power battery box is electrically connected to a low-voltage control box of the battery box;

[0011] The power battery box is electrically connected to a DC / DC charger for providing charging power input to external charging vehicles through a high-voltage combiner cabinet; the DC / DC charger is equipped with a DC / DC charging module for converting the DC high voltage in the power battery pack into the voltage required for vehicle charging;

[0012] The DC / DC charging module charges the vehicle via an electrically connected charging gun.

[0013] Furthermore, the high-voltage combiner cabinet is provided with at least one disconnect contactor;

[0014] The disconnect contactor controls the transmission of the power generation command by opening or closing.

[0015] Furthermore, the first low-voltage circuit is provided with a first converter for converting the DC high voltage inside the battery pack into DC 24V;

[0016] One side of the first converter is connected to the DC high voltage input terminal; the other side of the first converter is connected to the first battery through an uninterruptible power supply;

[0017] One side of the uninterruptible power supply is respectively connected to the lighting device, at least one low-voltage power supply end, and the charger main control power supply end.

[0018] Furthermore, the model of the first converter is THQZD1000-24R-K0507.

[0019] Furthermore, the model of the uninterruptible power supply is DDRH-240.

[0020] Furthermore, the model of the first battery is 12V 24AH.

[0021] Furthermore, the second low-voltage circuit is provided with a DC / DC direct current discharge and charger main control board; and a battery box low-voltage control box electrically connected to the DC / DC direct current discharge and charger main control board;

[0022] The number of the battery box low-voltage control box is at least one.

[0023] The utility model provides an electrical control circuit suitable for a mobile energy storage charging vehicle with a power battery box.

[0024] The circuit includes a first high-voltage circuit, and a second high-voltage circuit, a first low-voltage circuit, and a second low-voltage circuit electrically connected to the first high-voltage circuit respectively;

[0025] The first high-voltage circuit is used to treat each standard power battery box as an independent energy storage system, and each power battery box can be charged through a DC charging pile, and the discharge end of the power battery box; the second high-voltage circuit is used to provide power input for the DC / DC charger, and also provides a second high-voltage circuit for power input for the low-voltage part of the system;

[0026] The first low-voltage circuit is used to convert the input voltage of the DC bus into DCV voltage to provide power input for the entire low-voltage system; the second low-voltage circuit is used to control the discharge operation of the power battery and monitor the status of each power battery box. A standard power battery box with performance degradation can be used as an energy storage battery box without changing the structure. Combined with a DC / DC discharge charger, it can be used for new energy vehicles with charging needs. Moreover, this application solution is mobile and can be flexibly applied to daily power supply rescue and daily energy replenishment of new energy vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 This is a schematic diagram of the electrical control circuit architecture of a mobile energy storage charging vehicle with a power battery box according to the present invention;

[0029] Figure 2 This is a schematic diagram of the first high-voltage loop circuit of an electrical control circuit suitable for a mobile energy storage charging vehicle with a power battery box according to the present invention;

[0030] Figure 3 This is a schematic diagram of the second high-voltage loop circuit of an electrical control circuit suitable for a mobile energy storage charging vehicle with a power battery box according to the present invention;

[0031] Figure 4 This is a schematic diagram of the first low-voltage loop circuit of an electrical control circuit suitable for a mobile energy storage charging vehicle with a power battery box according to the present invention;

[0032] Figure 5 This is a schematic diagram of the second low-voltage loop circuit of an electrical control circuit suitable for a mobile energy storage charging vehicle with a power battery box according to the present invention;

[0033] In the figure: 1-standard power battery box; 2-standard battery box low-voltage control box; 3-high-voltage junction box; 4-DC / DC charger; 5-DC / DC charging module; 6-charging gun cable storage box; 7-first converter; 8-first battery; 9-uninterruptible power supply; 10-DC / DC charger main control board. DETAILED DESCRIPTION

[0034] In order to facilitate a better understanding of the purpose, technical solutions and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. Those skilled in the art can easily understand other advantages and functions of the present invention from the contents disclosed in this specification.

[0035] The present invention may also be implemented or applied through other different specific examples, and the details in this specification may also be modified and changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0036] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0037] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. Secondly, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0038] The present invention will be further described below with reference to the accompanying drawings. Figure 1-Figure 5 As shown, the utility model provides an electrical control circuit suitable for a mobile energy storage charging vehicle with a power battery box.

[0039] The circuit includes a first high-voltage circuit, and a second high-voltage circuit, a first low-voltage circuit, and a second low-voltage circuit electrically connected to the first high-voltage circuit respectively;

[0040] The first high-voltage circuit is used to treat each standard power battery box as an independent energy storage system, and each power battery box can be charged through a DC charging pile, and the discharge end of the power battery box; the second high-voltage circuit is used to provide power input for the DC / DC charger, and also provides a second high-voltage circuit for power input for the low-voltage part of the system;

[0041] The first low-voltage circuit is used to convert the input voltage of the DC bus into DCV voltage to provide power input for the entire low-voltage system; the second low-voltage circuit is used to control the discharge operation of the power battery and monitor the status of each power battery box.

[0042] At least one power battery box is provided in the first high-voltage circuit; the power battery box is electrically connected to a battery box low-voltage control box;

[0043] The power battery box is electrically connected to a DC / DC charger for providing charging power input to external charging vehicles through a high-voltage combiner cabinet; the DC / DC charger is equipped with a DC / DC charging module for converting the DC high voltage in the power battery pack into the voltage required for vehicle charging;

[0044] The DC / DC charging module charges the vehicle via an electrically connected charging gun.

[0045] At least one disconnecting contactor is provided in the high-voltage combiner cabinet; the disconnecting contactor controls the transmission of the power generation command by opening or closing.

[0046] The first low-voltage circuit is provided with a first converter for converting the DC high voltage inside the battery pack into a DC 24V;

[0047] One side of the first converter is connected to the DC high voltage input terminal; the other side of the first converter is connected to the first battery through an uninterruptible power supply;

[0048] One side of the uninterruptible power supply is respectively connected to the lighting device, at least one low-voltage power supply end, and the charger main control power supply end.

[0049] The model of the first converter is THQZD1000-24R-K0507. The model of the uninterruptible power supply is DDRH-240.

[0050] The model of the first battery is 12V 24AH.

[0051] The second low-voltage circuit is provided with a DC / DC discharge charger main control board; and a battery box low-voltage control box electrically connected to the DC / DC discharge charger main control board; the number of the battery box low-voltage control box is at least one.

[0052] Specifically, in an embodiment of the present invention, in the first high-voltage circuit: each standard power battery box can be used as an independent energy storage system, and each power battery box can be charged through a DC charging pile. A DC contactor is added to the discharge end of each power battery box, and is connected to the DC bus in the junction box through the contactor.

[0053] In the second high-voltage circuit: the DC bus can provide power input for the DC / DC charger, and also provide power input for the low-voltage part of the entire system.

[0054] In the first low-voltage circuit, a DC / DC high-voltage to DCV converter converts the DC bus input voltage into DCV voltage, providing power input for the entire low-voltage system. The system is also equipped with a 24V DC UPS, which charges the battery and powers other low-voltage components within the system. When the entire system is dormant, the battery can be used to wake the entire control system. During normal operation, the system requires no external power input to maintain operation.

[0055] In the second low-voltage circuit: the main control board of the DC / DC charger controls the discharge operation of the power battery and monitors the status of each power battery box through the vehicle CAN message and discharge protocol.

[0056] System Control Logic: When the entire system is dormant, the battery provides power, waking up the DC / DC charger main control board. This board then activates the power battery's low-voltage control circuit, closes contactor KM-2, and, through the discharge protocol, discharges power battery pack #1 to the DC bus. At this point, the entire system enters a discharge state, and the DC charger can charge the external battery. The DC / DC high-voltage converter, using the high voltage of the DC bus, continuously supplies power to the entire low-voltage system and charges the battery.

[0057] Power battery box switching function: When the SOC of power battery box 1 falls below the set threshold, the DC / DC charger enters a pause state. The charger's main control board then disconnects contactors KM1-2, and after a two-second delay, closes contactors KM3-4. The main control board then issues a power generation command to power battery box 2. Upon detecting the prevailing bus voltage, the charger resumes charging from the pause state. Battery boxes 3 and 4 then switch sequentially according to this logic.

[0058] The DC / DC charger provides charging power to external charging vehicles, while the C / DC charging module converts the DC high voltage in the power battery pack into the voltage required for vehicle charging.

[0059] DC / DC high voltage DC 24V converter; model: THQZD1000-24R-K0507; function: can convert the DC high voltage inside the battery pack into DC 24V.

[0060] Battery: model: 12V 24AH; function: can store 24V from UPS in the battery, provide power input for low voltage box wake-up.

[0061] DC 24V to DC 24V uninterrupted power supply UPS: model: DDRH-240; function: provides uninterrupted 24V power supply, and can charge the battery.

[0062] The utility model discloses a mobile energy storage type charging vehicle for power battery box, which comprises a circuit board, a first high-voltage circuit, a second high-voltage circuit, a first low-voltage circuit and a second low-voltage circuit.

[0063] The circuit comprises a first high-voltage circuit, a second high-voltage circuit, a first low-voltage circuit and a second low-voltage circuit electrically connected with the first high-voltage circuit respectively.

[0064] The first high-voltage circuit is used for charging each standard power battery box as an independent energy storage system, and the second high-voltage circuit is used for providing power input for a DC / DC direct current charger and a low-voltage part of the system.

[0065] The first low-voltage circuit is used for converting the input voltage of a DC bus into DCV voltage to provide power input for the whole low-voltage system, and the second low-voltage circuit is used for controlling power battery discharge operation and power battery box state monitoring.

[0066] That is, the power battery box meeting the use requirements can be changed into an energy storage battery without changing the mechanical structure, and is placed on a movable vehicle to be used as a mobile energy storage charging vehicle.

[0067] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An electrical control circuit suitable for a mobile energy storage charging vehicle with a power battery box, characterized in that: The circuit includes a first high-voltage circuit, and a second high-voltage circuit, a first low-voltage circuit, and a second low-voltage circuit electrically connected to the first high-voltage circuit respectively; The first high-voltage circuit is used to treat each standard power battery box as an independent energy storage system, and each power battery box can be charged through a DC charging pile, and the discharge end of the power battery box; the second high-voltage circuit is used to provide power input for the DC / DC charger, and also provides a second high-voltage circuit for power input for the low-voltage part of the system; The first low-voltage circuit is used to convert the input voltage of the DC bus into DCV voltage to provide power input for the entire low-voltage system; the second low-voltage circuit is used to control the discharge operation of the power battery and monitor the status of each power battery box.

2. The electrical control circuit for a mobile energy storage charging vehicle using a power battery box according to claim 1, characterized in that: At least one power battery box is provided in the first high-voltage circuit; the power battery box is electrically connected to a battery box low-voltage control box; The power battery box is electrically connected to a DC / DC charger for providing charging power input to external charging vehicles through a high-voltage combiner cabinet; the DC / DC charger is equipped with a DC / DC charging module for converting the DC high voltage in the power battery pack into the voltage required for vehicle charging; The DC / DC charging module charges the vehicle via an electrically connected charging gun.

3. The electrical control circuit suitable for a mobile energy storage charging vehicle with a power battery box according to claim 2, characterized in that: At least one disconnect contactor is provided in the high-voltage combiner cabinet; The disconnect contactor controls the transmission of the power generation command by opening or closing.

4. The electrical control circuit suitable for a mobile energy storage charging vehicle with a power battery box according to claim 1, characterized in that: The first low-voltage circuit is provided with a first converter for converting the DC high voltage inside the battery pack into a DC 24V; One side of the first converter is connected to the DC high voltage input terminal; the other side of the first converter is connected to the first battery through an uninterruptible power supply; One side of the uninterruptible power supply is respectively connected to the lighting device, at least one low-voltage power supply end, and the charger main control power supply end.

5. The electrical control circuit suitable for a mobile energy storage charging vehicle with a power battery box according to claim 4, characterized in that: The model of the first converter is THQZD1000-24R-K0507.

6. The electrical control circuit for a mobile energy storage charging vehicle using a power battery box according to claim 4, characterized in that: The model of the uninterruptible power supply is DDRH-240.

7. The electrical control circuit for a mobile energy storage charging vehicle using a power battery box according to claim 4, characterized in that: The model of the first battery is 12V 24AH.

8. The electrical control circuit suitable for a mobile energy storage charging vehicle with a power battery box according to claim 1, characterized in that: The second low-voltage circuit is provided with a DC / DC direct current discharge and charger main control board; and a battery box low-voltage control box electrically connected to the DC / DC direct current discharge and charger main control board; The number of the battery box low-voltage control box is at least one.

Images