CN215646349U - Emergency rescue device and electric mixer truck - Google Patents
Emergency rescue device and electric mixer truck Download PDFInfo
- Publication number
- CN215646349U CN215646349U CN202121447193.7U CN202121447193U CN215646349U CN 215646349 U CN215646349 U CN 215646349U CN 202121447193 U CN202121447193 U CN 202121447193U CN 215646349 U CN215646349 U CN 215646349U
- Authority
- CN
- China
- Prior art keywords
- module
- emergency rescue
- obc
- direct current
- interface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Emergency Lowering Means (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model provides an emergency rescue device and an electric mixer truck, the device comprises: the first input end of the OBC module is electrically connected with the direct current input interface, and the second input end of the OBC module is electrically connected with the alternating current input interface; the input end of the PDU module is electrically connected with the output end of the OBC module, the first output end of the PDU module is electrically connected with the input end of the MCU module, the second output end of the PDU module is electrically connected with the direct current output interface, and the PDU module is used for conducting the output end of the OBC module after selecting between the direct current output interface and the input end of the MCU module; the output end of the MCU module is electrically connected with the alternating current output interface and is used for converting the direct current output by the OBC module into alternating current; and the control module is used for controlling the OBC module, the PDU module and the MCU module and supplying power to the electric mixer truck. The device and the electric mixer truck provided by the utility model realize fault rescue of the electric mixer truck and improve the operation efficiency of the electric mixer truck.
Description
Technical Field
The utility model relates to the technical field of mechanical engineering, in particular to an emergency rescue device and an electric mixer truck.
Background
For a working machine driven by a power battery, for example, an electric mixer truck, when a three-level fault occurs, such as an insulation fault, an overpressure of a power battery monomer, an over-temperature of a power supply source, and the like, a high-voltage circuit of the whole truck of the electric mixer truck is in a disconnected state, a motor stops running, and therefore a mixing tank in transmission connection with the motor also stops running. At the moment, if cement or concrete exists in the stirring tank, the cement or concrete needs to be discharged in time, so that the tank is prevented from being solidified, and most of the cement or concrete is prevented from being solidified in the stirring tank.
In the prior art, liquid in a tank is usually pumped out in a mode of externally connecting a hydraulic pump, and cement or concrete cannot be discharged at a destination, so that waste is caused on one hand, and environmental pollution is caused on the other hand.
SUMMERY OF THE UTILITY MODEL
The utility model provides an emergency rescue device and an electric mixer truck, which are used for solving the technical problem of rescuing the electric mixer truck with a fault of an upper motor controller or a power battery.
The utility model provides an emergency rescue device which comprises a direct current input interface, an alternating current input interface, a direct current output interface, an alternating current output interface, an OBC module, a PDU (protocol data unit) module, an MCU (microprogrammed control unit) module and a control module, wherein the direct current input interface is connected with the alternating current input interface;
the first input end of the OBC module is electrically connected with the direct current input interface and used for obtaining direct current, and the second input end of the OBC module is electrically connected with the alternating current input interface and used for obtaining alternating current;
the input end of the PDU module is electrically connected with the output end of the OBC module, the first output end of the PDU module is electrically connected with the input end of the MCU module, the second output end of the PDU module is electrically connected with the direct current output interface, and the PDU module is used for conducting the output end of the OBC module after the direct current output interface and the input end of the MCU module are selected;
the output end of the MCU module is electrically connected with the alternating current output interface and is used for converting the direct current output by the OBC module into alternating current;
the control module is used for controlling the OBC module, the PDU module and the MCU module, and supplying power to the electric mixer truck through the direct current output interface or the alternating current output interface.
According to the emergency rescue device provided by the utility model, the OBC module comprises a rectifier sub-module;
and the rectifier module is used for converting the alternating current acquired by the OBC module into direct current.
The emergency rescue device further comprises a communication interface;
the communication interface is electrically connected with the control module and is used for acquiring at least one of a control enabling signal, an inversion control signal and a rectification control signal.
According to the emergency rescue device provided by the utility model, a first relay group is arranged between the input end and the first output end of the PDU module;
when the control module acquires a first control enabling signal, the first relay group is controlled to be closed, so that the output end of the OBC module is conducted with a circuit between the input ends of the MCU module.
According to the emergency rescue device provided by the utility model, a second relay group is arranged between the input end and the second output end of the PDU module;
when the control module acquires a second control enabling signal, the second relay set is controlled to be closed, and the output end of the OBC module is conducted with a circuit between the direct current output interfaces.
According to the emergency rescue device provided by the utility model, fuses are arranged between the input end and the first output end of the PDU module and between the input end and the second output end of the PDU module.
According to the emergency rescue device provided by the utility model, when the emergency rescue device is applied to rescue an electric mixer truck with a fault upper motor controller, the direct current input interface is connected with a direct current bus of the electric mixer truck, and the alternating current output interface is connected with an upper motor of the electric mixer truck.
According to the emergency rescue device provided by the utility model, when the emergency rescue device is applied to rescue an electric mixer truck with a power battery failure, the alternating current input interface is connected with an external power supply, and the direct current output interface is connected with a direct current bus of the electric mixer truck.
According to the emergency rescue device provided by the utility model, the external power supply comprises a power grid or a generator.
The utility model also provides an electric mixer truck, and the emergency rescue device is loaded on the electric mixer truck.
In the emergency rescue device provided by the utility model, the OBC module is used for respectively acquiring direct current and alternating current through the direct current input interface and the alternating current input interface, the PDU module is used for selecting and conducting the output end of the OBC module between the direct current output interface and the input end of the MCU module to realize current distribution, the MCU module is used for converting the direct current output by the OBC module into the alternating current, and the alternating current can be acquired from the outside and converted into the direct current, so that the upper motor is controlled by the upper motor controller instead of the upper motor controller with a fault on the electric mixer truck, in addition, the OBC module can convert the acquired alternating current into the direct current, the direct current can be used for providing a standby power supply to drive the upper motor to continuously operate when a power battery of the electric mixer truck has the fault, the fault rescue of the electric mixer truck is realized, and the damage to the electric mixer truck caused by concrete solidification is avoided, and environmental pollution brought to the external environment when discharging concrete, and the operating efficiency of the electric mixer truck is improved.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an emergency rescue apparatus provided by the present invention;
FIG. 2 is a schematic diagram of a PDU module according to the present invention;
FIG. 3 is a second schematic diagram of the PDU module according to the present invention;
fig. 4 is a schematic view of an emergency rescue apparatus provided by the present invention;
fig. 5 is one of the working schematic diagrams of the emergency rescue device provided by the utility model;
fig. 6 is a second schematic view of the emergency rescue apparatus provided by the present invention.
Reference numerals:
100: an emergency rescue device; 110: an OBC module;
120: a PDU module; 130: an MCU module;
140: a control module; 150: a DC input interface;
160: an alternating current input interface; 170: a DC output interface;
180: an AC output interface; 190: a communication interface.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic structural diagram of an emergency rescue apparatus provided by the present invention, and as shown in fig. 1, the emergency rescue apparatus 100 includes a dc input interface 150, an ac input interface 160, a dc output interface 170, an ac output interface 180, an OBC module 110, a PDU module 120, an MCU module 130, and a control module 140.
The OBC module 110 has a first input electrically connected to the dc input interface 150 for obtaining dc power, and a second input electrically connected to the ac input interface 160 for obtaining ac power.
The input end of the PDU module 120 is electrically connected to the output end of the OBC module 110, the first output end is electrically connected to the input end of the MCU module 130, and the second output end is electrically connected to the dc output interface 170, so that the output end of the OBC module 110 is selectively connected between the dc output interface 170 and the input end of the MCU module 130;
the output end of the MCU module 130 is electrically connected to the ac output interface 180, and is configured to convert the dc power output by the OBC module 110 into ac power;
and the control module 140 is configured to control the OBC module 110, the PDU module 120, and the MCU module 130, and supply power to the electric mixer truck through the dc output interface 170 or the ac output interface 180.
Specifically, the emergency rescue device 100 is applied to an electric mixer truck. The electric mixer truck is an operation machine driven by a power battery. The mixer truck top-loading refers to parts of the mixer truck except for a chassis and a mudguard, and comprises a mixer tank body, a support, a feed hopper, a discharge hopper, a top-loading motor, a water tank, a pipeline, an operation link mechanism and the like. The emergency rescue device 100 can rescue an electric mixer truck with a failure of an upper motor control or a power battery.
The emergency rescue device 100 can be placed in a storage space of the electric mixer truck and taken out for emergency when the electric mixer truck breaks down; when the electric mixer truck breaks down, the emergency rescue device 100 can be transported to the site of the fault by other transportation means.
The OBC module 110 is an On-Board charging unit (On-Board Charger) for obtaining power from the outside. The OBC module 110 includes two inputs. The OBC module 110 has a first input end electrically connected to the dc input interface 150 for obtaining dc power, and a second input end electrically connected to the ac input interface 160 for obtaining ac power.
The PDU module 120 is a Power Distribution Unit (Power Distribution Unit) for switching the electric energy output by the OBC module, and includes an input end and two output ends, the input end is electrically connected to the output end of the OBC module 110, the first output end is electrically connected to the input end of the MCU module 130, and the second output end is electrically connected to the dc output interface 170. The PDU module 120 switches the output of the OBC module 110 between the dc output interface 170 and the input of the MCU module 130 by controlling the conduction of the circuit between the input and the two outputs.
The MCU module 130 is a top mounted motor control Unit (Microcontroller Unit), and the output end is electrically connected to the ac output interface 180. The ac output interface 180 may be directly connected to the upper motor of the electric mixer vehicle. The MCU module 130 includes an inverter sub-module therein, which can convert the DC power transmitted by the OBC module 110 into AC power required by the operation of the upper motor. The MCU module 130 may control the upper motor by controlling the waveform of the alternating current.
The control module 140 is electrically connected to the control input terminals of the OBC module 110, the PDU module 120, and the MCU module 130, respectively, stores the control logic of each module, and can control each module.
According to the emergency rescue device provided by the embodiment of the utility model, the OBC module is used for respectively acquiring direct current and alternating current through the direct current input interface and the alternating current input interface, the PDU module is used for conducting the output end of the OBC module after selecting between the direct current output interface and the input end of the MCU module, current distribution is realized, the MCU module converts the direct current output by the OBC module into the alternating current, and the alternating current can be acquired from the outside and converted into the direct current, so that a loading motor controller with faults on the electric mixer truck is replaced to control a loading motor, the fault rescue of the electric mixer truck is realized, the damage to the electric mixer truck caused by concrete solidification is avoided, the environmental pollution caused by the external environment when the concrete is discharged is avoided, and the operation efficiency of the electric mixer truck is improved.
Based on the above embodiment, the OBC module 110 includes a rectifier module;
and the rectifier module is used for converting the alternating current acquired by the OBC module 110 into direct current.
Specifically, the OBC module 110 is provided with a rectifier module inside for converting externally obtained alternating current into direct current. The rectifier module can adopt a half-wave rectifier circuit, a full-wave rectifier circuit, a bridge rectifier circuit and the like.
According to the emergency rescue device provided by the embodiment of the utility model, the OBC module can convert the obtained alternating current into the direct current, and the direct current can be used for providing a standby power supply to drive the upper motor to continuously operate when the power battery of the electric mixer truck breaks down, so that the mixing tank is kept to continuously operate, the fault rescue of the electric mixer truck is realized, and the operation efficiency of the electric mixer truck is improved.
According to any of the above embodiments, the system further comprises a communication interface 190;
and a communication interface 190 electrically connected to the control module 140, for acquiring at least one of a control enable signal, an inversion control signal and a rectification control signal.
Specifically, the communication interface 190 may be used to connect the control module 140 and a complete vehicle control system of a malfunctioning electric mixer vehicle.
When the emergency rescue device 100 is connected to the electric mixer with a fault, the emergency rescue device can receive control signals sent by a whole vehicle control system, wherein the control signals comprise a control enabling signal, an inversion control signal, a rectification control signal and the like.
The control enabling signal is used for triggering the emergency rescue device 100 to be started, and the working mode needing to be started is selected according to the control enabling signal.
The inversion control signal is used for controlling the conversion of direct current into alternating current required by the control of the upper-mounted motor. For example, the inversion control signal may include parameters such as output voltage, output frequency, and output phase. The control module 140 controls the MCU module to convert the dc power into ac power according to the set parameters according to the inversion control signal.
The commutation control signal is used to control the conversion of ac power to dc power required by the upper-mounted motor controller, and may include parameters such as output voltage, for example. The control module 140 controls the OBC module to convert the ac power into the dc power according to the set parameters according to the rectification control signal.
Based on any of the above embodiments, a first relay set is disposed between the input end and the first output end of the PDU module 120;
when the control module acquires the first control enabling signal, the first relay set is controlled to be closed, so that the circuit between the output end of the OBC module 110 and the input end of the MCU module 130 is conducted.
Specifically, the first control enable signal is used for controlling the emergency rescue device 100 to rescue the electric mixer truck with the failure of the upper motor controller.
Fig. 2 is a schematic diagram of the PDU module according to the present invention, and as shown in fig. 2, a first relay set is disposed between the input end and the first output end of the PDU module 120. The first relay group includes relays KM1 and KM 2. When the control module 140 acquires the first control enable signal, the first relay set is controlled to be closed, so that a circuit between the output end of the OBC module 110 and the input end of the MCU module 130 is conducted, and the MCU module 130 acquires the direct current and performs conversion. FU1, FU2, FU3 and FU4 in the figure represent fuses.
Based on any of the above embodiments, a second relay set is disposed between the input end and the second output end of the PDU module 120;
when the control module acquires the second control enable signal, the second relay set is controlled to be closed, so that the circuit between the output end of the OBC module 110 and the direct current output interface 170 is conducted.
Specifically, the second control enabling signal is used for controlling the emergency rescue device 100 to rescue the electric mixer truck with the power battery failure.
Fig. 3 is a second schematic diagram of the PDU module according to the present invention, and as shown in fig. 3, a second relay set is disposed between the input end and the second output end of the PDU module 120. The second relay group includes relays KM3 and KM 4. When the control module 140 acquires the second control enable signal, the second relay set is controlled to be closed, so that the circuit between the output end of the OBC module 110 and the dc output interface 170 is conducted, and the OBC module 110 can output the converted dc power. FU1, FU2, FU3 and FU4 in the figure represent fuses.
Based on any of the above embodiments, fuses are disposed between the input end and the first output end of the PDU module 120 and between the input end and the second output end of the PDU module 120.
Specifically, the fuse is an electrical element that fuses a fuse body by heat generated by itself to open a power supply circuit when a current in the power supply circuit exceeds a predetermined value. The specification of the fuse can be determined according to the current of the upper motor during normal operation.
Based on any of the above embodiments, when the emergency rescue device 100 is applied to rescue an electric mixer truck with a failed upper motor controller, the dc input interface 150 is connected to a dc bus of the electric mixer truck, and the ac output interface 180 is connected to an upper motor of the electric mixer truck.
Specifically, when the upper motor controller of the electric mixer truck fails, for example, when a three-level fault occurs, the whole truck drops high pressure, and after the mixing tank stops running, the following method can be adopted for rescue:
1) transporting the emergency rescue device 100 to the site of the fault electric mixer truck by any transportation means;
2) disassembling a high-low voltage plug-in of an upper motor controller of the fault electric mixer truck;
3) connecting an alternating current output interface 180 and a communication interface 190 of the emergency rescue device 100 with a wire harness of an upper motor of the fault electric mixer truck;
4) connecting a direct current input interface 150 of the emergency rescue device 100 with a direct current bus of an upper motor controller of the fault electric mixer truck;
5) when the electric mixer truck with the fault is in high pressure, the upper motor is started, and the mixing tank operates along with the motor.
Based on any of the above embodiments, when the emergency rescue device 100 is applied to rescue an electric mixer truck with a power battery failure, the ac input interface 160 is connected to an external power supply, and the dc output interface 170 is connected to a dc bus of the electric mixer truck.
Specifically, when a power battery of the electric mixer vehicle fails, for example, the inside of the power battery pack fails or the input/output interface of the power battery pack fails, the following method may be used for rescue:
1) transporting the emergency rescue device 100 to the site of the fault electric mixer truck by any transportation means;
2) disassembling a high-voltage plug-in unit output by a power battery of the fault electric mixer truck;
3) connecting a direct current output interface 170 of the emergency rescue device 100 with a direct current bus of a power battery connected with the electric mixer truck with the fault;
4) connecting the ac input interface 160 of the emergency rescue apparatus 100 with the power grid or the generator;
5) when the electric mixer truck with the fault is in high pressure, the upper motor is started, and the mixing tank operates along with the motor.
In any of the above embodiments, the external power source comprises a power grid or a generator.
In particular, when a power cell fails, electrical energy may be obtained from the grid. For example, a transformer that can be used to supply power may be located and identified near the location where the electric mixer vehicle is malfunctioning. The emergency rescue device 100 is flexibly connected with a transformer in a power grid through a cable, is always connected with the power grid, and obtains electric energy from the power grid.
Electrical energy may also be obtained from a nearby generator. For example, an electric mixer truck is typically located near a worksite when it malfunctions. The ac power may be provided by a temporary generator at the worksite.
Based on any one of the above embodiments, the utility model further provides an electric mixer truck, and the electric mixer truck is loaded with the emergency rescue device 100.
Specifically, the electric mixer truck may carry the emergency rescue device 100 and store it in the reserve space. When an upper motor controller or a power battery of the electric mixer truck breaks down, the emergency rescue device 100 can be used for rescue, and the operation of the mixing tank can be quickly recovered.
Based on any of the above embodiments, fig. 4 is a schematic view of an emergency rescue apparatus provided by the present invention, and as shown in fig. 4, the emergency rescue apparatus includes:
1) charging module OBC
The module has the function of converting a three-phase alternating current input power supply into a direct current power supply output.
2) Power distribution module PDU
The module has the function of realizing the on-off of a single-flow loop of the emergency rescue device under different conditions.
3) MCU (microprogrammed control Unit) of upper control module
The module functions to provide energy for the upper motor and realize the control of the upper motor.
4) Low-voltage interface
The accessory part mainly meets the connection of the input and the output of the power supply control signal.
When the upper motor (stirring tank motor) controller fails and the power battery output of a failed vehicle is normal, a high-voltage wire harness for inputting the power battery of the vehicle to be rescued into the upper controller is connected to the direct-current input interface of the emergency rescue device, and a low-voltage control signal is connected to the low-voltage interface of the emergency rescue device. Fig. 5 is one of schematic working diagrams of the emergency rescue device provided by the present invention, and as shown in fig. 5, the emergency rescue device obtains direct current from a power battery of a vehicle to be rescued, and outputs alternating current required for controlling an upper motor after inversion. The straight line with an arrow in the figure indicates the current flow direction.
When a power battery (a battery core, a connecting loop between the battery modules or an output interface) breaks down and a controller of an upper motor of a vehicle needing rescue is normal, an output line of the power battery of the vehicle needing rescue is disconnected and connected to a direct current output interface of an emergency rescue device. A three-phase alternating current power supply (such as a generator) on a fault site is used for providing three-phase alternating current for a fault vehicle, the three-phase alternating current is connected to an alternating current input interface of the emergency rescue device, and a low-voltage control signal is connected to a low-voltage interface of the emergency rescue device. Fig. 6 is a second schematic view of the emergency rescue apparatus according to the present invention, and as shown in fig. 6, the emergency rescue apparatus obtains ac power from a three-phase ac power source in a fault site, and outputs dc power required for controlling an upper motor after rectification. The straight line with an arrow in the figure indicates the current flow direction.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes commands for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. An emergency rescue device is characterized by comprising a direct current input interface, an alternating current input interface, a direct current output interface, an alternating current output interface, an OBC module, a PDU module, an MCU module and a control module;
the first input end of the OBC module is electrically connected with the direct current input interface and used for obtaining direct current, and the second input end of the OBC module is electrically connected with the alternating current input interface and used for obtaining alternating current;
the input end of the PDU module is electrically connected with the output end of the OBC module, the first output end of the PDU module is electrically connected with the input end of the MCU module, the second output end of the PDU module is electrically connected with the direct current output interface, and the PDU module is used for conducting the output end of the OBC module after the direct current output interface and the input end of the MCU module are selected;
the output end of the MCU module is electrically connected with the alternating current output interface and is used for converting the direct current output by the OBC module into alternating current;
the control module is used for controlling the OBC module, the PDU module and the MCU module, and supplying power to the electric mixer truck through the direct current output interface or the alternating current output interface.
2. An emergency rescue apparatus as claimed in claim 1, wherein the OBC module comprises a rectifier module;
and the rectifier module is used for converting the alternating current acquired by the OBC module into direct current.
3. An emergency rescue apparatus as claimed in claim 2, further comprising a communication interface;
the communication interface is electrically connected with the control module and is used for acquiring at least one of a control enabling signal, an inversion control signal and a rectification control signal.
4. An emergency rescue apparatus according to claim 3, wherein a first relay set is provided between the input end and the first output end of the PDU module;
when the control module acquires a first control enabling signal, the first relay group is controlled to be closed, so that the output end of the OBC module is conducted with a circuit between the input ends of the MCU module.
5. An emergency rescue apparatus according to claim 3, wherein a second relay set is provided between the input end and the second output end of the PDU module;
when the control module acquires a second control enabling signal, the second relay set is controlled to be closed, and the output end of the OBC module is conducted with a circuit between the direct current output interfaces.
6. An emergency rescue apparatus as claimed in claim 1, wherein fuses are provided between the input and the first output of the PDU module and between the input and the second output of the PDU module.
7. The emergency rescue apparatus according to claim 1, wherein when the emergency rescue apparatus is used for rescuing an electric mixer vehicle with a failure in an upper motor controller, the dc input interface is connected to a dc bus of the electric mixer vehicle, and the ac output interface is connected to an upper motor of the electric mixer vehicle.
8. The emergency rescue apparatus according to claim 1, wherein when the emergency rescue apparatus is used for rescuing a motor-driven mixer vehicle with a power battery failure, the ac input interface is connected to an external power source, and the dc output interface is connected to a dc bus of the motor-driven mixer vehicle.
9. An emergency rescue apparatus as claimed in claim 8, wherein the external power source comprises an electrical grid or a generator.
10. An electric mixer vehicle, characterized in that it is loaded with an emergency rescue apparatus according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121447193.7U CN215646349U (en) | 2021-06-28 | 2021-06-28 | Emergency rescue device and electric mixer truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121447193.7U CN215646349U (en) | 2021-06-28 | 2021-06-28 | Emergency rescue device and electric mixer truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215646349U true CN215646349U (en) | 2022-01-25 |
Family
ID=79946309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121447193.7U Active CN215646349U (en) | 2021-06-28 | 2021-06-28 | Emergency rescue device and electric mixer truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215646349U (en) |
-
2021
- 2021-06-28 CN CN202121447193.7U patent/CN215646349U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101931138B1 (en) | Power Distribution on Ships | |
| CN103545902B (en) | There is the electrical system of DC chain | |
| CN205489618U (en) | Compound energy storage system of electrically propelled ship oceangoing ship based on super capacitor and battery | |
| EP2625768A2 (en) | Power supply system for an electrical drive of a marine vessel | |
| CN102229327B (en) | Automobile power supply system | |
| CN103434914A (en) | Trolley conductor energy storage type construction elevator | |
| CN110932350A (en) | Storage battery pack online discharging system and control method | |
| CN110539668B (en) | EMUs emergency traction system | |
| CN205202756U (en) | Locomotive traction system | |
| CN215646349U (en) | Emergency rescue device and electric mixer truck | |
| KR102606030B1 (en) | Battery charge and discharge test system with energy recycling | |
| CN211001772U (en) | Marine pure battery propulsion system | |
| CN112436516A (en) | Ship alternating current and direct current power system and control method thereof | |
| CN211089147U (en) | Distributed energy storage elevator control system | |
| CN111049187A (en) | Port shore bridge micro-grid control system and method based on energy storage flywheel | |
| TR201808959T4 (en) | Transducer system and wind or water turbine. | |
| KR101524879B1 (en) | Power transformer for industrial vehicle | |
| US20200395773A1 (en) | Power Supply Unit Having A Housing And A Rechargeable Electrical Store | |
| CN201038814Y (en) | Tyre type container crane diesel-electric set idling power set | |
| CN113320016A (en) | Control device, method and system and electric mixer truck | |
| CN208062808U (en) | It centrifuges maneuver energy back electric quantity and presents control system | |
| CN217445259U (en) | ACD two-level frequency converter with online backup phase module | |
| CN114825318A (en) | AC-DC hybrid uninterrupted power supply system | |
| CN220544704U (en) | RTG battery transition device | |
| CN105449720A (en) | Distribution system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |