CN216465395U - Electric loading system of cement mixer truck, control device of electric loading system and cement mixer truck - Google Patents
Electric loading system of cement mixer truck, control device of electric loading system and cement mixer truck Download PDFInfo
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- CN216465395U CN216465395U CN202121897491.6U CN202121897491U CN216465395U CN 216465395 U CN216465395 U CN 216465395U CN 202121897491 U CN202121897491 U CN 202121897491U CN 216465395 U CN216465395 U CN 216465395U
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Abstract
The utility model relates to an electric loading system of a cement mixer truck, a control device of the electric loading system and the cement mixer truck, wherein the control device of the electric loading system comprises a power battery, a motor controller, a motor, a DCDC converter, a low-voltage battery and a generator, the output end of the power battery is simultaneously connected with the high-voltage end of the DCDC converter and the input end of the motor controller, the output end of the motor controller is connected with the input end of the motor, and the low-voltage end of the DCDC converter is simultaneously connected with the output end of the low-voltage battery and the output end of the generator. According to the utility model, when the power battery fails, the motor can be controlled by the DCDC converter and the low-voltage battery through the motor controller, so that the problem of 'tank stuffiness' caused by the failure of the high-voltage power battery in the prior art is solved.
Description
Technical Field
The utility model belongs to the technical field of cement mixing trucks with electric loading systems, and particularly relates to an electric loading system of a cement mixing truck, a control device of the electric loading system and the cement mixing truck.
Background
The cement mixer truck is a special truck for conveying concrete for construction, and in the existing cement mixer truck with an electric loading system, the loading system mainly comprises a high-voltage power battery, a motor controller, a three-phase asynchronous motor, a speed reducer and a cement mixing tank. When the cement mixing tank works, the three-phase asynchronous motor drives the cement mixing tank to rotate through the speed reducer, wherein the high-voltage power battery provides energy, and the motor controller is used for adjusting the rotating speed of the three-phase asynchronous motor.
However, the high-voltage power battery is greatly influenced by the ambient temperature, and the capacity of the high-voltage power battery is gradually reduced after the high-voltage power battery is used for a period of time, so that the high-voltage power battery is a weak link of an electric loading system of the cement mixer, when the high-voltage power battery breaks down, the high-voltage power battery cannot drive the three-phase asynchronous motor to rotate, and then the cement mixer stops rotating, if the concrete in the cement mixer cannot be unloaded for a long time at the moment, the risk of 'stuffy tank' is caused after the concrete is gradually solidified, and then the loss of the concrete is caused, and high maintenance and cleaning cost is brought.
SUMMERY OF THE UTILITY MODEL
The utility model provides an electric loading system of a cement mixer truck, a control device of the electric loading system and the cement mixer truck, which are used for solving the problem of tank stuffiness caused by the fault of a high-voltage power battery in the prior art.
In order to solve the technical problems, the utility model provides a control device of an electric loading system of a cement mixer truck, which comprises a power battery, a motor controller, a motor, a DCDC converter, a low-voltage battery and a generator, wherein the output end of the power battery is simultaneously connected with the high-voltage end of the DCDC converter and the input end of the motor controller, the output end of the motor controller is connected with the input end of the motor, and the low-voltage end of the DCDC converter is simultaneously connected with the output end of the low-voltage battery and the output end of the generator.
The beneficial effects of the above technical scheme are: the power battery controls the motor to work through the motor controller, when the power battery breaks down, the DCDC converter boosts the output voltage of the low-voltage battery to the voltage required by the motor to work, and then controls the motor to work through the motor controller.
Further, in order to enable the cement mixer truck to work stably, the utility model provides a control device of an electric loading system of the cement mixer truck, which further comprises that the motor is an induction motor.
Further, in order to enable the cement mixer truck to work more stably, the utility model provides a control device of an electric upper-mounting system of the cement mixer truck, and the control device further comprises that the induction motor is a three-phase asynchronous motor.
Further, in order to facilitate replacement of the low-voltage battery, the utility model provides a control device of the electric loading system of the cement mixer truck, and the control device further comprises a storage battery which is the low-voltage battery.
Furthermore, in order to establish communication between the DCDC converter and the motor controller, the utility model provides a control device of the electric loading system of the cement mixer truck, and the control device further comprises a data signal end of the DCDC converter connected with a data signal end of the motor controller.
Further, in order to more accurately realize voltage conversion, the utility model provides a control device of an electric loading system of a cement mixer truck, and the control device also comprises a DCDC converter which comprises an MCU (micro control unit), wherein a data signal end of a motor controller is connected with a signal end of the MCU.
Furthermore, in order to reduce the interference on the transmission signal provided by the DCDC converter to the motor controller, the utility model provides a control device of the electric loading system of the cement mixer truck, and the control device further comprises a data signal end of the DCDC converter which is in wired connection with a data signal end of the motor controller.
Further, in order to prolong the service time of the low-voltage battery, the utility model provides a control device of the electric loading system of the cement mixer truck, which further comprises that the voltage of the output end of the low-voltage battery is 24V.
The utility model also provides an electric loading system of the cement mixer, which comprises a speed reducer, a cement mixing tank and the control device of the electric loading system of the cement mixer, wherein the output end of a motor in the control device is connected with the input end of the speed reducer, and the output end of the speed reducer is connected with the cement mixing tank.
The utility model also provides a cement mixer truck which comprises an automobile chassis and further comprises the electric loading system of the cement mixer truck.
Drawings
FIG. 1 is a block diagram of a control device of the electric upper-loading system of the cement mixer truck of the present invention;
fig. 2 is a block diagram of the electric loading system of the cement mixer truck of the present invention.
Detailed Description
The basic concept of the utility model is as follows: when the power battery breaks down, the voltage received by the DCDC converter is increased to the working voltage required by the motor by the DCDC converter, so that the motor works normally, and the problem of 'tank stuffiness' caused by the failure of the high-voltage power battery in the prior art is solved.
In order to make the objects, technical solutions and technical effects of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.
The control device embodiment of the electric loading system of the cement mixer truck comprises:
the control device of the electric loading system of the cement mixer truck in the embodiment can be simply called as a control device. Fig. 1 is a block diagram of a control device of an electric charging system of a cement mixer truck according to the present invention. As shown in fig. 1, the control device includes a power battery, a motor controller, a motor, a DCDC converter, a low-voltage battery, and a generator. The output end of the power battery is connected with the high-voltage end of the DCDC converter and the input end of the motor controller, the output end of the motor controller is connected with the input end of the motor, and the low-voltage end of the DCDC converter is connected with the output end of the low-voltage battery and the output end of the generator.
Specifically, the power battery is a high voltage battery system (i.e., a high voltage power battery). The power battery provides power (namely energy) for the cement mixer truck. In this embodiment, the power battery powers the motor of the control device. The power battery may be, but is not limited to, a lithium ion battery system. The power battery is provided with an output end. The output end is used for outputting a first set voltage. The first set voltage is a high voltage.
In this embodiment, the motor controller includes an input terminal, an output terminal, and a data signal terminal. The input end of the motor controller is connected with the output end of the power battery. The output end of the motor controller is connected with the input end of the motor. The output end of the motor controller outputs three-phase voltages U, V and W to the motor when receiving a first set voltage provided by the power battery, and the rotating speed of the motor is controlled by the three-phase voltages U, V and W. And the motor controller monitors whether the power battery has a fault or not, generates an emergency signal if the power battery has the fault, and transmits the emergency signal to the DCDC converter through the data signal terminal.
In the present embodiment, the motor is a three-phase asynchronous motor among induction motors. The motor has an input and a minimum and a maximum voltage threshold for normal operation. The first set voltage is greater than the lowest voltage threshold and less than the highest voltage threshold. The input of the motor rotates at the set speed upon receiving the three-phase voltages U, V and W. This enables the cement mixer truck to operate stably.
In the present embodiment, the DCDC converter is a conversion device that converts a dc power supply of a certain voltage class into a dc power supply of another voltage class. The DCDC converter includes a high voltage terminal, a low voltage terminal, and a data signal terminal. The high-voltage end of the DCDC converter is connected with the power battery. The low-voltage end of the DCDC converter is connected with the low-voltage battery. And the data signal end of the DCDC converter is connected with the data signal end of the motor controller. The connection mode is a wired mode. For example, a data signal terminal of the DCDC converter and a data signal terminal of the motor controller may be connected by a signal line for transmitting signals exchanged between the DCDC converter and the motor controller. Thus, interference with a transmission signal supplied from the DCDC converter to the motor controller can be reduced.
In this embodiment, the DCDC converter includes an mcu (micro controller unit) micro control unit. And a data signal end of the motor controller is connected with a signal end of the MCU. This enables more accurate voltage conversion. The DCDC converter is the DCDC converter that steps up, and when the signal end of the little the control unit of MCU of DCDC converter received emergency signal, the little the control unit of MCU starts the DCDC converter that steps up to make the DCDC converter that steps up begin work, and the DCDC converter that steps up low-voltage battery output voltage to the first settlement voltage that satisfies the motor work needs.
In this embodiment, the low-voltage battery has an output terminal. The output end of the low-voltage battery outputs a second set voltage. The second set voltage is less than the first set voltage and less than the lowest voltage threshold of the motor. The second setting voltage is 24V. Thereby, the service time of the low-voltage battery can be increased. The low-voltage battery is, for example, an existing low-voltage battery in a vehicle. Therefore, the low-voltage battery can be replaced conveniently. In this embodiment, the low-voltage battery supplies the DCDC converter with the second setting voltage. The second setting voltage output by the low-voltage battery is converted into the first setting voltage through the DCDC converter.
In this embodiment, the generator includes an output. The output end of the generator is connected with the low-voltage battery. When the DCDC converter is not started, the generator charges the low-voltage battery. The output end of the generator is also connected with the low-voltage end of the DCDC converter. When the DCDC converter starts to work, the generator and the low-voltage battery simultaneously provide low voltage for the DCDC converter. The generator in this embodiment is an existing generator on board the vehicle, such as an on-board generator. Thereby, an additional device can be avoided.
The working process of the control device of the cement mixer during working is as follows:
the power battery provides a first set voltage, the motor controller monitors whether the first set voltage of the power battery is smaller than the lowest voltage threshold value of the three-phase asynchronous motor in real time, if not, the power battery is normal, the motor controller outputs three-phase voltages U, V and W based on the received first set voltage, and the motor rotates at a set rotating speed based on the received three-phase voltages U, V and W; if the voltage is less than the preset value, the power battery has a fault, the motor controller generates an emergency signal and transmits the emergency signal to the DCDC converter through a signal wire of the data signal end; the motor controller detects whether the power of the motor is larger than the maximum output power of the boosting DCDC converter or not in real time when the DCDC converter provides the first set voltage, and if so, the motor controller generates a feedback alarm signal and transmits the feedback alarm signal to the DCDC converter through a signal wire of a data signal end; the DCDC converter generates a power reduction signal when receiving the feedback alarm signal, transmits the power reduction signal to the motor controller through a signal wire of the data signal end, and controls to reduce the power of the motor after receiving the power reduction signal. Thus, the boosting DCDC converter can be prevented from being overloaded and damaged.
Based on the controlling means of the electronic facial make-up system of cement mixer truck of this embodiment, the power battery passes through the work of motor controller control motor, and when the power battery broke down, the DCDC converter stepped up the output voltage of low voltage battery to the required voltage of motor work, then through the work of motor controller control motor, under this kind of condition, can avoid the power battery proruption trouble to lead to the motor out of work, and then lead to the cement mixer truck to appear "stifle jar" phenomenon. In addition, when the power battery fails and the DCDC converter provides the first set voltage, the motor controller detects whether the power of the motor is greater than the maximum output power of the boost DCDC converter in real time, and the DCDC converter controls the power of the motor through the motor controller. Thus, the boosting DCDC converter can be prevented from being overloaded and damaged. The control device of the embodiment is low in cost and simple in structure, and can reduce the loss of concrete and the later-period high maintenance and cleaning cost.
In this embodiment, the motor controller monitors whether the power battery is malfunctioning. In other embodiments, the power cell may be monitored for a failure by another controller in the cement mixer truck, and if a failure occurs, the other controller generates an emergency signal and transmits the emergency signal to the DCDC converter.
In the present embodiment, the DCDC converter boosts the second setting voltage to the first setting voltage. In other embodiments, the DCDC converter may boost the second setting voltage to a voltage other than the first setting voltage, which is required for the motor to operate. The voltage required by the motor to work is the voltage between the lowest voltage threshold value and the highest voltage threshold value required by the motor to work normally.
In the present embodiment, the data signal terminal of the DCDC converter is connected to the data signal terminal of the motor controller by wire, and in other embodiments, the data signal terminal of the DCDC converter is connected to the data signal terminal of the motor controller by wireless.
The embodiment of the electric loading system of the cement mixer comprises the following steps:
the embodiment discloses an electric loading system of a cement mixer truck. The electric loading system of the cement mixer truck can be referred to as the electric loading system for short. The electric loading system comprises a speed reducer, a cement mixing tank and a control device in the control device embodiment of the electric loading system of the cement mixing truck. The output end of a motor in the control device is connected with the input end of a speed reducer, and the output end of the speed reducer is connected with a cement stirring tank. The cement mixer electric loading system based on the embodiment can avoid the power battery sudden failure to cause the motor to be out of work, temporarily drive the cement mixing tank to rotate so as to unload the concrete in the cement mixing tank, and further prevent the cement mixer from generating the phenomenon of 'muggy tank'.
Fig. 2 is a block diagram of the electric loading system of the cement mixer truck of the present invention. As shown in fig. 2, the electric upper-loading system includes a power battery, a motor controller, a motor, a DCDC converter, a low-voltage battery, a generator, a speed reducer, and a cement mixing tank. Specifically, the speed reducer includes input and output, and the input of speed reducer is the rotational speed that the motor provided, and the output of speed reducer is the rotational speed after the speed reducer slows down. The cement mixing tank rotates and mixes based on the rotating speed reduced by the speed reducer so as to discharge the concrete in the cement mixing tank. The related content of the control device may specifically refer to the corresponding description in the method embodiment, and is not described herein again.
The working process of the electric loading system of the cement mixer during working is as follows:
the power battery provides a first set voltage, the motor controller monitors whether the first set voltage of the power battery is smaller than the lowest voltage threshold value of the three-phase asynchronous motor in real time, if not, the power battery is normal, the motor controller outputs three-phase voltages U, V and W based on the received first set voltage, the motor rotates at a set rotating speed based on the received three-phase voltages U, V and W, the rotating speed of the motor is reduced by the speed reducer and then transmitted to the cement stirring tank, and the cement stirring tank rotates at the rotating speed reduced by the speed reducer; if the voltage is less than the preset value, the power battery has a fault, the motor controller generates an emergency signal and transmits the emergency signal to the DCDC converter through a signal wire of the data signal end; the motor controller detects whether the power of the motor is larger than the maximum output power of the boosting DCDC converter or not in real time when the DCDC converter provides the first set voltage, and if so, the motor controller generates a feedback alarm signal and transmits the feedback alarm signal to the DCDC converter through a signal wire of a data signal end; the DCDC converter generates a power reduction signal when receiving the feedback alarm signal, transmits the power reduction signal to the motor controller through a signal wire of the data signal end, and controls to reduce the power of the motor after receiving the power reduction signal. Thus, the boosting DCDC converter can be prevented from being overloaded and damaged.
Cement mixer vehicle example:
the embodiment also provides a cement mixer, which comprises an automobile chassis and the electric loading system of the cement mixer in the system embodiment of the utility model. The cement mixer truck based on this embodiment can avoid power battery sudden failure to lead to the motor out of work, and then leads to the cement mixer truck to appear "stifle jar" phenomenon.
Claims (10)
1. The utility model provides a controlling means of electronic facial make-up system of cement mixer, its characterized in that includes:
the output end of the power battery is connected with the high-voltage end of the DCDC converter and the input end of the motor controller, the output end of the motor controller is connected with the input end of the motor, and the low-voltage end of the DCDC converter is connected with the output end of the low-voltage battery and the output end of the generator.
2. The control device for the electric loading system of the cement mixer truck according to claim 1,
the electric machine is an induction motor.
3. The control device for the electric upper-loading system of the cement mixer truck according to claim 2,
the induction motor is a three-phase asynchronous motor.
4. The control device for the electric loading system of the cement mixer truck according to claim 1,
the low-voltage battery is a secondary battery.
5. The control device for the electric loading system of the cement mixer truck according to claim 1,
and the data signal end of the DCDC converter is connected with the data signal end of the motor controller.
6. The control device for the electric upper-loading system of the cement mixer truck according to claim 5,
the DCDC converter comprises an MCU (microprogrammed control unit), and a data signal end of the motor controller is connected with a signal end of the MCU.
7. The control device for the electric upper-loading system of the cement mixer truck according to claim 5,
and the data signal end of the DCDC converter is in wired connection with the data signal end of the motor controller.
8. The control device for the electric loading system of the cement mixer truck according to claim 1,
the voltage at the output of the low voltage battery is 24V.
9. The utility model provides a cement mixer truck electric loading system which characterized in that includes:
the speed reducer, the cement mixing tank and the control device of the electric loading system of the cement mixing truck as claimed in any one of claims 1 to 8, wherein the output end of a motor in the control device is connected with the input end of the speed reducer, and the output end of the speed reducer is connected with the cement mixing tank.
10. A cement mixer vehicle comprising an automotive chassis, characterized in that it further comprises an electric top-loading system of the cement mixer vehicle according to claim 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121897491.6U CN216465395U (en) | 2021-08-13 | 2021-08-13 | Electric loading system of cement mixer truck, control device of electric loading system and cement mixer truck |
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| CN202121897491.6U CN216465395U (en) | 2021-08-13 | 2021-08-13 | Electric loading system of cement mixer truck, control device of electric loading system and cement mixer truck |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114826088A (en) * | 2022-06-27 | 2022-07-29 | 深圳市固亿建材水泥制品有限公司 | Power device for automatic concrete skip |
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2021
- 2021-08-13 CN CN202121897491.6U patent/CN216465395U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114826088A (en) * | 2022-06-27 | 2022-07-29 | 深圳市固亿建材水泥制品有限公司 | Power device for automatic concrete skip |
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Address after: 450000 building 15, No. 16, Jinzhan street, Zhengzhou high tech Industrial Development Zone, Henan Province Patentee after: Zhengzhou senpeng Electronic Technology Co.,Ltd. Address before: 450001 No.16, Jinzhan street, high tech Industrial Development Zone, Zhengzhou City, Henan Province Patentee before: ZHENGZHOU SENPENG ELECTRONIC TECHNOLOGY Co.,Ltd. |