Concrete pumping system
By setting up an on-board battery pack and DC discharge socket on the electric mixer truck, powering the electric concrete pumping equipment is solved, and the problems of high energy consumption and insufficient power supply of the concrete pumping equipment are achieved, and continuous operation and energy saving are achieved.
Patent Information
- Application Number
- CN202411424952.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-01-07
AI Technical Summary
Existing concrete pumping equipment relies on diesel engines or on-site AC power, resulting in high energy consumption and difficulty in meeting the long-term pumping needs, especially under the limitations of construction site conditions.
By setting up an on-board battery pack and DC discharge socket on the electric mixer truck, and setting up external DC cables and plugs on the electric concrete pumping equipment, the electric mixer truck can power the electric concrete pumping equipment and provide continuous power support.
It solves the problem of operation restriction caused by electric concrete pumping equipment relying on on-site power supply, provides a power basis, reduces energy loss, and meets the long-term pumping needs.
Smart Images
Figure CN119266536A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of engineering machinery, and in particular to a concrete pumping system. Background Art
[0002] As an important equipment in the field of engineering machinery, concrete pumping equipment is mainly used to transport pre-mixed concrete mixture to the construction site. Concrete pumping equipment is widely used in many scenarios, such as high-rise buildings, bridges, tunnels and other construction sites.
[0003] Existing concrete pumping equipment is usually powered by diesel engines, batteries or on-site AC power.
[0004] However, relying solely on diesel engines for power will result in high energy consumption for concrete pumping equipment. Secondly, due to the size of the concrete pumping equipment, only batteries with smaller capacity can be configured in the concrete pumping equipment, which makes it difficult to meet the long-term pumping needs of the concrete pumping equipment. Finally, due to the large pumping power of concrete pumping equipment, most construction sites are restricted by construction site conditions and cannot provide concrete pumping equipment with on-site AC power that can meet pumping requirements. Therefore, solutions using on-site AC power as a power source are often difficult to implement. Summary of the invention
[0005] The present invention provides a concrete pumping system, which can supply power to an electric concrete pumping device through an electric mixer truck, thereby providing a power basis for the continuous operation of the electric concrete pumping device.
[0006] In a first aspect, a concrete pumping system is provided, the concrete pumping system comprising: at least one electric mixer truck and at least one electric concrete pumping equipment:
[0007] Among them, the electric mixer truck includes an on-board battery pack and a DC discharge socket, and the electric concrete pumping equipment includes an external DC cable and a plug connected to the external DC cable;
[0008] An electric mixer truck is used to deliver discharge current to an electric concrete pumping device using an onboard battery pack after detecting that the DC discharge socket is electrically connected to the plug;
[0009] Electric concrete pumping equipment is used to pump concrete under the power supply of discharge current.
[0010] Optionally, the electric mixer truck also includes an on-board DC charging port and an on-board power distribution unit; wherein the on-board DC charging port is electrically connected to the on-board battery pack, and the on-board battery pack is electrically connected to the on-board power distribution unit; the on-board DC charging port is used to connect to an external power supply and charge the on-board battery pack through the external power supply; the on-board power distribution unit is used to distribute the electrical energy of the on-board battery pack to the DC discharge socket and other electrical appliances on the electric mixer truck.
[0011] Optionally, both the electric mixer truck and the electric concrete pumping equipment include a vehicle controller; the vehicle controller of the electric concrete pumping equipment is used to send a handshake signal to the vehicle controller of the electric mixer truck after detecting that the DC discharge socket is electrically connected to the plug; the vehicle controller of the electric mixer truck is used to send the mixer truck battery information and the maximum discharge current of the on-board battery pack to the vehicle controller of the electric concrete pumping equipment after receiving the handshake signal; the vehicle controller of the electric concrete pumping equipment is also used to send a discharge request to the vehicle controller of the electric mixer truck based on the mixer truck battery information and the maximum discharge current after receiving the mixer truck battery information and the maximum discharge current; the discharge request includes power demand description information; the vehicle controller of the electric mixer truck is also used to lock the plug on the DC discharge socket after receiving the discharge request, and transmit the discharge current to the electric concrete pumping equipment based on the power demand description information in the discharge request.
[0012] Optionally, the electric concrete pumping equipment also includes an external control switch; the external control switch is used to send a device connection signal to the vehicle controller of the electric concrete pumping equipment in response to the user's operation control; the vehicle controller of the electric concrete pumping equipment is specifically used to send a handshake signal to the vehicle controller of the electric mixer truck after detecting that the DC discharge socket is electrically connected to the plug and receiving the device connection signal.
[0013] Optionally, the electric mixer truck also includes a mixing motor and a motor microcontroller unit, and the motor microcontroller unit is electrically connected to the vehicle controller of the electric mixer truck; the motor microcontroller unit is used to obtain the current consumed by the mixing motor of the electric mixer truck in real time when the electric mixer truck discharges materials into the electric concrete pumping equipment; the vehicle controller of the electric mixer truck is specifically used to determine the maximum discharge current of the on-board battery pack after receiving the handshake signal, according to the actual current in the battery information of the mixer truck and the current consumed by the mixing motor obtained from the motor microcontroller unit.
[0014] Optionally, the electric concrete pumping equipment also includes an equipment microcontroller unit, which is electrically connected to a vehicle controller of the electric concrete pumping equipment; the vehicle controller of the electric concrete pumping equipment is further used to determine the maximum output power according to the rated voltage and maximum discharge current in the battery information of the mixer truck after receiving the battery information of the mixer truck, and to determine the actual output power according to the maximum output power and the operating gear of the electric concrete pumping equipment; the equipment microcontroller unit is used to receive the actual output power, and control the electric concrete pumping equipment to perform concrete pumping according to the actual output power.
[0015] Optionally, the electric concrete pumping equipment also includes a built-in power distribution unit, a built-in battery pack and a built-in battery management system; wherein the built-in power distribution unit is connected to the plug, and the built-in battery management system is used to monitor the state of charge value of the built-in battery pack; the built-in power distribution unit is used to distribute the discharge current of the electric mixer truck transmitted via the plug among the various pumping components and the built-in battery pack of the electric concrete pumping equipment; the vehicle controller of the electric concrete pumping equipment is also used to electrically connect the built-in battery pack with the built-in power distribution unit after detecting that the pumping has stopped, if it is determined that the charging conditions of the built-in battery pack are met based on the state of charge value and the set lower limit value of the state of charge, so as to charge the built-in battery pack using the on-board battery pack of the electric mixer truck.
[0016] Optionally, the vehicle controller of the electric concrete pumping equipment is also used to disconnect the electrical connection between the built-in battery pack and the built-in power distribution unit when the condition for stopping charging of the built-in battery pack is detected; wherein the condition for stopping charging of the built-in battery pack includes at least one of the following: the vehicle controller of the electric concrete pumping equipment receives a pumping start command input by the user or a high-voltage power-off command generated by the electric mixer truck; the state of charge value is greater than or equal to a set upper limit of the state of charge; the power of the on-board battery pack in the electric mixer truck is less than a set lower limit of the power.
[0017] Optionally, the external control switch is also used to send a disconnection signal to the vehicle controller of the electric concrete pumping equipment in response to the user's operation control; the vehicle controller of the electric concrete pumping equipment is also used to send a high-voltage power-off command to the vehicle controller of the electric mixer truck after receiving the disconnection signal; the vehicle controller of the electric mixer truck is also used to disconnect the connection between the on-board power distribution unit and the DC discharge socket after receiving the high-voltage power-off command, so as to stop continuing to deliver discharge current to the electric concrete pumping equipment.
[0018] Optionally, the vehicle controller of the electric mixer truck is also used to unlock the plug after the on-board power distribution unit is disconnected from the DC discharge socket, so that the user can unplug the plug from the DC discharge socket.
[0019] The technical solution of the embodiment of the present invention, by arranging an on-board battery pack and a DC discharge socket on the electric mixer truck, and arranging an external DC cable and a plug connected to the external DC cable on the electric concrete pumping equipment, can power the electric concrete pumping equipment through the on-board battery pack on the electric mixer truck, thereby solving the problem that the existing electric concrete pumping equipment needs to rely on an on-site external power supply, resulting in limited pumping operations, and provides a power basis for the continuous operation of the electric concrete pumping equipment.
[0020] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] 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 creative work.
[0022] Figure 1 is a structural schematic diagram of a concrete pumping system provided according to Embodiment 1 of the present invention;
[0023] Figure 2 is a structural schematic diagram of another concrete pumping system provided according to the second embodiment of the present invention;
[0024] Figure 3 This is a flow chart of a method for supplying power to an electric mixer truck provided according to Embodiment 3 of the present invention. DETAILED DESCRIPTION
[0025] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.
[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0027] Embodiment 1
[0028] Figure 1 1 is a schematic diagram of the structure of a concrete pumping system provided according to Embodiment 1 of the present invention. This embodiment is applicable to the case where pumping operations are performed by electric concrete pumping equipment.
[0029] like Figure 1 As shown, a concrete pumping system disclosed in this embodiment includes: at least one electric mixer truck 11 and at least one electric concrete pumping equipment 12.
[0030] The electric mixer truck 11 includes an onboard battery pack 101 and a DC discharge socket 102 , and the electric concrete pumping equipment 12 includes an external DC cable 201 and a plug 202 connected to the external DC cable 201 .
[0031] In this embodiment, there may be various types of electric concrete pumping equipment 12, such as pump trucks, vehicle-mounted pumps, and trailer pumps, etc. The correspondence between the electric mixer truck 11 and the electric concrete pumping equipment 12 may be many-to-many, that is, any electric mixer truck including a vehicle-mounted battery pack 101 and a DC discharge socket 102 may establish a power supply and power receiving relationship with any electric concrete pumping equipment 12 including an external DC cable 201 and a plug 202.
[0032] Specifically, the electric mixer truck 11 can be used to transmit the discharge current to the electric concrete pumping equipment 12 using the onboard battery pack 101 after detecting that the DC discharge socket 102 is electrically connected to the plug 202. The electric concrete pumping equipment 12 can be used to pump concrete under the power supply of the discharge current.
[0033] In a specific embodiment, after detecting that the DC discharge socket 102 is electrically connected to the plug 202, the electric mixer truck 11 can determine the discharge current to be delivered to the electric concrete pumping equipment 12 according to the mixer truck battery information, and deliver the discharge current to the electric concrete pumping equipment 12. The mixer truck battery information may include the rated voltage, actual current, remaining power, and temperature of the onboard battery pack 101.
[0034] The advantage of such a setting is that, since the capacity of the onboard battery pack of the electric mixer truck is relatively large, and the electric mixer truck is only heavily loaded during the process of transporting concrete to the construction site, there is still a lot of power left in the onboard battery pack of the electric mixer truck after it arrives at the construction site. Therefore, the technical solution of this embodiment uses the electric mixer truck to power the electric concrete pumping equipment, thus avoiding the situation where the electric concrete pumping equipment cannot continue to perform pumping operations at a construction site that is not equipped with an on-site external power supply. Secondly, compared with the existing technology of using an on-site AC power supply, the technical solution of this embodiment configures a DC discharge socket on the electric mixer truck, which can reduce energy loss during the power supply process and save the power of the onboard battery pack.
[0035] The technical solution of the embodiment of the present invention provides a concrete pumping system, which includes: at least one electric mixer truck and at least one electric concrete pumping equipment; wherein the electric mixer truck includes an on-board battery pack and a DC discharge socket, and the electric concrete pumping equipment includes an external DC cable and a plug connected to the external DC cable; the electric mixer truck is used to use the on-board battery pack to transmit a discharge current to the electric concrete pumping equipment after detecting that the DC discharge socket is electrically connected to the plug; the electric concrete pumping equipment is used to pump concrete under the power supply of the discharge current, which solves the problem that the existing electric concrete pumping equipment needs to rely on on-site AC power supply, resulting in limited pumping operations. The electric concrete pumping equipment can be powered by the electric mixer truck, providing a power basis for the continuous operation of the electric concrete pumping equipment.
[0036] Embodiment 2
[0037] Figure 2 1 is a structural diagram of another concrete pumping system provided according to Embodiment 2 of the present invention. This embodiment is a further refinement of the above technical solution, and the technical solution in this embodiment can be combined with various optional solutions in one or more of the above embodiments.
[0038] like Figure 2 As shown, a concrete pumping system disclosed in this embodiment includes: at least one electric mixer truck 11 and at least one electric concrete pumping equipment 12.
[0039] The electric mixer truck 11 further includes an onboard DC charging port 103 and an onboard power distribution unit 104. The onboard DC charging port 103 is electrically connected to the onboard battery pack 101, and the onboard battery pack 101 is electrically connected to the onboard power distribution unit 104.
[0040] In this embodiment, the vehicle-mounted DC charging port 103 can be used to connect to an external power source and charge the vehicle-mounted battery pack through the external power source. The vehicle-mounted power distribution unit 104 can be used to distribute the power of the vehicle-mounted battery pack 101 to the DC discharge socket 102 and other electrical appliances on the electric mixer truck 11.
[0041] In a specific embodiment, an external discharge circuit can be added to the vehicle-mounted power distribution unit 104, and the power of the vehicle-mounted battery pack 101 can be distributed to the DC discharge socket 102 by connecting the external discharge circuit. The DC discharge socket 102 can be set at any position of the electric mixer truck 11, such as the front and rear of the vehicle. Preferably, in order to facilitate the user to connect the plug 202 to the DC discharge socket 102, the DC discharge socket 102 can be placed at the rear of the electric mixer truck.
[0042] The advantage of this arrangement is that, since electric mixer trucks need to frequently travel between mixing stations and construction sites, by setting up an on-board DC charging port on the electric mixer truck, the on-board battery pack can be recharged when the electric mixer truck returns to the mixing station, thereby meeting the long-term power demand of the electric concrete pumping equipment. Secondly, by adding an external discharge circuit to the on-board power distribution unit, power can be distributed to the DC discharge socket, thereby providing power to the electric concrete pumping equipment.
[0043] It should be noted that when the electric mixer truck returns to the mixing station for loading and / or charging, the electric concrete pumping equipment can establish a power supply and power receiving relationship with other electric mixer trucks equipped with on-board battery packs and DC discharge sockets. The electric concrete pumping equipment powered by the electric mixer truck each time can also be different.
[0044] Optionally, the electric mixer truck 11 and the electric concrete pumping equipment 12 both include a vehicle controller.
[0045] Specifically, the vehicle controller of the electric concrete pumping equipment 12 is used to send a handshake signal to the vehicle controller of the electric mixer truck 11 after detecting that the DC discharge socket 102 is electrically connected to the plug 202. The vehicle controller of the electric mixer truck 11 is used to send the mixer truck battery information and the maximum discharge current of the on-board battery pack 101 to the vehicle controller of the electric concrete pumping equipment 12 after receiving the handshake signal. The vehicle controller of the electric concrete pumping equipment 12 is also used to send a discharge request to the vehicle controller of the electric mixer truck 11 according to the mixer truck battery information and the maximum discharge current after receiving the mixer truck battery information and the maximum discharge current; the discharge request includes power demand description information. The vehicle controller of the electric mixer truck 11 is also used to lock the plug 202 on the DC discharge socket 102 after receiving the discharge request, and transmit the discharge current to the electric concrete pumping equipment 12 according to the power demand description information in the discharge request.
[0046] In a specific embodiment, the vehicle controller of the electric mixer truck 11 can determine the maximum discharge current of the on-board battery pack 101 according to the mixer truck battery information after obtaining the mixer truck battery information collected by the on-board battery management system. The electric concrete pumping equipment 12 can determine the power demand description information in response to the user's expected power current, based on the comparison result between the user's expected power current and the maximum discharge current and the mixer truck battery information, and send a discharge request containing the power demand description information to the vehicle controller of the electric mixer truck 11. In actual applications, if the user's expected power current is greater than or equal to the maximum discharge current, the maximum discharge current is added to the power demand description information. If the user's expected power current is less than the maximum discharge current, the user's expected power current is added to the power demand description information. Among them, the power demand description information can also include the rated voltage in the mixer truck battery information.
[0047] After receiving the discharge request, the vehicle controller of the electric mixer truck 11 can lock the plug 202 on the DC discharge socket 102 through the electronic lock or mechanical lock in the DC discharge socket 102, and stop responding to the mixer truck driving instruction input by the user after the plug 202 and the DC discharge socket 102 are locked. Preferably, the specific implementation method of locking the plug 202 on the DC discharge socket 102 through the electronic lock can be: using the electromagnet in the electronic lock to fix the plug 202 on the DC discharge socket 102.
[0048] The advantage of such a setting is that by providing a vehicle controller for the electric mixer truck and the electric concrete pumping equipment, information interaction between the electric mixer truck and the electric concrete pumping equipment can be achieved, thereby avoiding insufficient power supply and excessive power supply.
[0049] Optionally, the electric concrete pumping equipment 12 further includes an external control switch (not shown in the figure).
[0050] Specifically, the external control switch (not shown in the figure) is used to respond to the user's operation control and send a device connection signal to the vehicle controller of the electric concrete pumping equipment 12. The vehicle controller of the electric concrete pumping equipment 12 is specifically used to send a handshake signal to the vehicle controller of the electric mixer truck 11 after detecting that the DC discharge socket 102 is connected to the plug 202 and receiving the device connection signal.
[0051] In a specific embodiment, the vehicle controller of the electric concrete pumping equipment 12 is specifically used to send a handshake signal to the vehicle controller of the electric mixer truck 11 if it receives a device connection signal sent by an external control switch (not shown in the figure) after detecting that the DC discharge socket 102 is connected to the plug 202.
[0052] In a specific application scenario, after arriving at the construction site, the electric concrete pumping equipment 12 can use the electric energy of the built-in battery pack 205 to drive the pump group motor to unfold the legs and boom and other components to the corresponding positions, waiting for the arrival of the electric mixer truck 11. Then, after the electric mixer truck 11 arrives at the designated location of the construction site, the user can insert the plug 202 into the DC discharge socket 102 and start the external control switch (not shown in the figure). Finally, after receiving the device connection signal, the vehicle controller of the electric concrete pumping equipment 12 can send a handshake signal to the vehicle controller of the electric mixer truck 11 to establish a communication connection between the electric concrete pumping equipment 12 and the electric mixer truck 11.
[0053] The advantage of this setting is that by setting an external control switch on the electric concrete pumping equipment, the communication connection and disconnection between the electric concrete pumping equipment and the electric mixer truck can be controlled, avoiding useless power consumption of the vehicle controller before the plug is connected to the DC discharge socket, and saving power of the electric concrete pumping equipment and the electric mixer truck.
[0054] Optionally, the electric mixer truck 11 further includes a mixing motor 105 and a motor micro control unit 106 , and the motor micro control unit 106 is electrically connected to a vehicle controller of the electric mixer truck 11 .
[0055] Specifically, the motor microcontroller unit 106 is used to obtain the current consumed by the mixing motor 105 of the electric mixer truck 11 in real time when the electric mixer truck 11 discharges materials into the electric concrete pumping equipment 12. The vehicle controller of the electric mixer truck 11 is specifically used to determine the maximum discharge current of the on-board battery pack 101 according to the actual current in the mixer truck battery information and the current consumed by the mixing motor 105 obtained from the motor microcontroller unit 106 after receiving the handshake signal.
[0056] In a specific embodiment, before the electric concrete pumping equipment 12 performs concrete pumping, the electric mixer truck 11 can be controlled to discharge materials into the hopper of the electric concrete pumping equipment 12. Then, the maximum discharge current of the on-board battery pack 101 can be determined according to the difference between the actual current and the current consumed by the mixing motor 105.
[0057] The advantage of such a setting is that by determining the maximum discharge current of the on-board battery pack, a reference can be provided for the electric concrete pumping equipment, thereby avoiding the subsequent unreasonable determination of the actual output power, which would lead to poor pumping effect of the electric concrete pumping equipment.
[0058] Optionally, the electric concrete pumping equipment 12 further includes an equipment micro control unit 203 , and the equipment micro control unit 203 is electrically connected to a vehicle controller of the electric concrete pumping equipment 12 .
[0059] Specifically, the vehicle controller of the electric concrete pumping equipment 12 is also used to determine the maximum output power according to the rated voltage and maximum discharge current in the mixer truck battery information after receiving the mixer truck battery information, and determine the actual output power according to the maximum output power and the operating gear of the electric concrete pumping equipment. The equipment micro control unit 203 is used to receive the actual output power and control the electric concrete pumping equipment 12 to perform concrete pumping according to the actual output power.
[0060] In a specific embodiment, the maximum output power can be determined based on the multiplication result of the rated voltage and the maximum discharge current. Then, the conversion ratio corresponding to the operating gear can be obtained from the pre-set operating gear relationship table, and the actual output power can be determined based on the multiplication result between the operating gear and the conversion ratio. Among them, the operating gear relationship table contains the corresponding relationship between the operating gear and the conversion ratio. For example, the first operating gear, the second operating gear and the third operating gear can be filled in the operating gear relationship table, and the conversion ratio corresponding to the first operating gear is determined to be 10%, the conversion ratio corresponding to the second operating gear is 20%, and the conversion ratio corresponding to the third operating gear is 30%.
[0061] Finally, the actual output power can be sent to the device micro control unit 203. The device micro control unit 203 is specifically used to control the pump group motor to drive the pump group, and drive each functional component (such as a pump body and a pump shaft, etc.) in the electric concrete pumping equipment 12 through each oil pump in the pump group to achieve concrete pumping.
[0062] Optionally, the electric concrete pumping equipment 12 further includes a built-in power distribution unit 204, a built-in battery pack 205 and a built-in battery management system 206. The built-in power distribution unit 204 is connected to the plug 202. The built-in battery management system 206 is used to monitor the state of charge value of the built-in battery pack 205. The built-in power distribution unit 204 is used to distribute the discharge current of the electric mixer truck 11 transmitted via the plug 202 among the pumping components and the built-in battery pack 205 of the electric concrete pumping equipment 12. The vehicle controller of the electric concrete pumping equipment 12 is also used to electrically connect the built-in battery pack 205 to the built-in power distribution unit 204 after detecting that the pumping stops, if it is determined that the charging condition of the built-in battery pack is met according to the state of charge value and the set lower limit of the state of charge, so as to charge the built-in battery pack 205 using the on-board battery pack 101 of the electric mixer truck 11.
[0063] The state of charge value may be used to reflect the remaining power of the built-in battery pack 205. The onboard battery pack 101 and the built-in battery pack 205 have the same voltage level.
[0064] In a specific embodiment, the vehicle controller of the electric concrete pumping equipment 12 can control the pump group motor to rotate at a low speed or stop in response to the stop operation instruction input by the user, and after detecting the stop of pumping, determine whether the charging condition of the built-in battery pack is met according to the comparison result of the state of charge value and the set lower limit value of the state of charge. For example, if the state of charge value is less than or equal to the lower limit value of the state of charge, it is determined that the charging condition of the built-in battery pack is met, and the built-in battery pack 205 can be controlled to be electrically connected to the built-in power distribution unit 204. If the state of charge value is greater than the lower limit value of the state of charge, it is determined that the charging condition of the built-in battery pack is not met, and the built-in power distribution unit 204 and the built-in battery pack 205 are in a disconnected state, and the electric mixer truck 11 stops supplying power to the electric concrete pumping equipment 12.
[0065] The advantage of this arrangement is that, since the onboard battery pack is in a light-load state after the pump motor rotates at a low speed or stops, the discharge capacity is relatively large, so the onboard battery pack can be used to charge the built-in battery pack, so that the electric concrete pumping equipment can be maintained in a short-term light-load condition through the built-in battery pack when the mixer truck leaves. Among them, the short-term light-load condition can include mixing and waiting for materials and equipment washing.
[0066] Optionally, the vehicle controller of the electric concrete pumping equipment 12 is further used to disconnect the electrical connection between the built-in battery pack 205 and the built-in power distribution unit 204 when the built-in battery pack 205 stops charging. The built-in battery pack 205 stops charging when the vehicle controller of the electric concrete pumping equipment 12 receives a pumping start instruction input by the user or a high-voltage power-off instruction generated by the electric mixer truck 11; the state of charge value is greater than or equal to a set upper limit of the state of charge; the power of the on-board battery pack 101 in the electric mixer truck 11 is less than a set lower limit of the power.
[0067] The charging stop condition may also include a charging failure in the concrete pumping system, such as the temperature of the built-in battery pack 205 being greater than or equal to a preset temperature threshold, and the temperature of the onboard battery pack 101 being greater than or equal to a preset temperature threshold.
[0068] Optionally, the external control switch (not shown in the figure) is also used to respond to the user's operation control and send a disconnection signal to the vehicle controller of the electric concrete pumping equipment 12. The vehicle controller of the electric concrete pumping equipment 12 is also used to send a high-voltage power-off instruction to the vehicle controller of the electric mixer truck 11 after receiving the disconnection signal. The vehicle controller of the electric mixer truck 11 is also used to disconnect the on-board power distribution unit 104 from the DC discharge socket 102 after receiving the high-voltage power-off instruction, so as to stop continuing to deliver the discharge current to the electric concrete pumping equipment 12.
[0069] In a specific implementation, after receiving the high voltage power-off instruction, the connection between the vehicle power distribution unit 104 and the DC discharge socket 102 may be disconnected, that is, the external discharge circuit in the vehicle power distribution unit 104 may be disconnected.
[0070] Optionally, the vehicle controller of the electric mixer truck 11 is also used to unlock the plug 202 after the on-board power distribution unit 104 is disconnected from the DC discharge socket 102, so that the user can unplug the plug 202 from the DC discharge socket 102.
[0071] Specifically, the vehicle controller of the electric mixer truck 11 can respond to the mixer truck driving instructions input by the user after detecting that the plug 202 is disconnected from the DC discharge socket 102 and the vehicle controller of the electric mixer truck 11 is disconnected from the vehicle controller of the concrete pumping equipment 12, thereby avoiding the electric mixer truck 11 from driving when the connection is not disconnected, thereby improving the safety of construction site operations.
[0072] The technical solution of this embodiment provides a concrete pumping system, which includes: at least one electric mixer truck and at least one electric concrete pumping equipment; wherein the electric mixer truck includes an on-board battery pack, a DC discharge socket, an on-board DC charging port, an on-board power distribution unit, a mixing motor and a motor micro-control unit; the concrete pumping equipment includes an external DC power supply, a plug connected to an external DC cable, a device micro-control unit, a built-in power distribution unit, a built-in battery pack and a built-in battery management system. The above-mentioned concrete pumping system solves the problem that the existing electric concrete pumping equipment needs to rely on on-site AC power supply, resulting in limited pumping operations. Secondly, by providing a vehicle controller for the electric mixer truck and the electric concrete pumping equipment, information interaction between the electric mixer truck and the electric concrete pumping equipment can be achieved, avoiding insufficient power supply and excessive power supply.
[0073] Embodiment 3
[0074] Figure 3 It is a flow chart of a power supply method for an electric mixer truck provided according to Embodiment 3 of the present invention. This embodiment is a further refinement of the above technical solution. The technical solution in this embodiment can be combined with various optional solutions in one or more of the above embodiments.
[0075] like Figure 3 As shown, the present embodiment discloses a power supply method for an electric mixer truck, which is executed by a vehicle controller on the electric mixer truck. The method includes:
[0076] S110: After detecting that the DC discharge socket is electrically connected to the plug, determining the discharge current delivered to the electric concrete pumping equipment.
[0077] In this step, optionally, after receiving the handshake signal sent by the vehicle controller of the electric concrete pumping equipment, the mixer truck battery information and the maximum discharge current of the onboard battery pack can be sent to the vehicle controller of the electric concrete pumping equipment. Then, after receiving the discharge request sent by the vehicle controller of the electric concrete pumping equipment according to the maximum discharge current, the plug can be locked on the DC discharge socket, and the discharge current delivered to the electric concrete pumping equipment can be determined according to the power demand description information in the discharge request.
[0078] S120, controlling the on-board battery pack to deliver discharge current to the electric concrete pumping equipment.
[0079] In this step, optionally, if a high-voltage power-off instruction is received from the electric concrete pumping equipment, or abnormal charging of the concrete pumping system is detected, the discharge current to the electric concrete pumping equipment may be stopped.
[0080] The technical solution of this embodiment determines the discharge current delivered to the electric concrete pumping equipment after detecting that the DC discharge socket is electrically connected to the plug; and controls the on-board battery pack to deliver the discharge current to the electric concrete pumping equipment. This solves the problem that the existing electric concrete pumping equipment needs to rely on on-site AC power supply, resulting in limited pumping operations. The electric concrete pumping equipment can be powered by an electric mixer truck, providing a power basis for the continuous operation of the electric concrete pumping equipment.
[0081] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.
[0082] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims
1. A concrete pumping system, characterized in that: The concrete pumping system comprises: at least one electric mixer truck and at least one electric concrete pumping equipment; Wherein, the electric mixer truck includes an on-board battery pack and a DC discharge socket, and the electric concrete pumping equipment includes an external DC cable and a plug connected to the external DC cable; The electric mixer truck is used to use the on-board battery pack to deliver discharge current to the electric concrete pumping equipment after detecting that the DC discharge socket is electrically connected to the plug; The electric concrete pumping equipment is used to pump concrete when powered by the discharge current.
2. The concrete pumping system according to claim 1, characterized in that: The electric mixer truck also includes an on-board DC charging port and an on-board power distribution unit; Wherein, the vehicle-mounted DC charging port is electrically connected to the vehicle-mounted battery pack, and the vehicle-mounted battery pack is electrically connected to the vehicle-mounted power distribution unit; The vehicle-mounted DC charging port is used to connect to an external power source and charge the vehicle-mounted battery pack through the external power source; The on-board power distribution unit is used to distribute the electric energy of the on-board battery pack to the DC discharge socket and other electrical appliances on the electric mixer truck.
3. The concrete pumping system according to claim 1, characterized in that: The electric mixer truck and the electric concrete pumping equipment both include a vehicle controller; The vehicle controller of the electric concrete pumping equipment is used to send a handshake signal to the vehicle controller of the electric mixer truck after detecting that the DC discharge socket is electrically connected to the plug; The vehicle controller of the electric mixer truck is used to send the mixer truck battery information and the maximum discharge current of the on-board battery pack to the vehicle controller of the electric concrete pumping equipment after receiving the handshake signal; The vehicle controller of the electric concrete pumping equipment is further used to send a discharge request to the vehicle controller of the electric mixer truck according to the battery information and the maximum discharge current of the mixer truck after receiving the battery information and the maximum discharge current of the mixer truck; the discharge request includes power demand description information; The vehicle controller of the electric mixer truck is further used to lock the plug on the DC discharge socket after receiving the discharge request, and transmit the discharge current to the electric concrete pumping equipment according to the power demand description information in the discharge request.
4. The concrete pumping system according to claim 3, characterized in that: The electric concrete pumping equipment also includes an external control switch; The external control switch is used to send a device connection signal to the vehicle controller of the electric concrete pumping equipment in response to the user's operation control; The vehicle controller of the electric concrete pumping equipment is specifically used to send a handshake signal to the vehicle controller of the electric mixer truck after detecting that the DC discharge socket is electrically connected to the plug and receiving the equipment connection signal.
5. The concrete pumping system according to claim 3, characterized in that: The electric mixer truck also includes a mixing motor and a motor micro control unit, and the motor micro control unit is electrically connected to the vehicle controller of the electric mixer truck; The motor micro control unit is used to obtain the current consumed by the mixing motor of the electric mixer truck in real time when the electric mixer truck discharges materials into the electric concrete pumping equipment; The vehicle controller of the electric mixer truck is specifically used to determine the maximum discharge current of the vehicle battery pack according to the actual current in the mixer truck battery information and the current consumed by the mixer motor obtained from the motor micro control unit after receiving the handshake signal.
6. The concrete pumping system according to claim 5, characterized in that: The electric concrete pumping equipment further comprises an equipment micro control unit, and the equipment micro control unit is electrically connected to a vehicle controller of the electric concrete pumping equipment; The vehicle controller of the electric concrete pumping equipment is further used to determine the maximum output power according to the rated voltage and the maximum discharge current in the battery information of the mixer truck after receiving the battery information of the mixer truck, and determine the actual output power according to the maximum output power and the operating gear of the electric concrete pumping equipment; The equipment micro control unit is used to receive the actual output power and control the electric concrete pumping equipment to perform concrete pumping according to the actual output power.
7. The concrete pumping system according to claim 3, characterized in that: The electric concrete pumping equipment also includes a built-in power distribution unit, a built-in battery pack and a built-in battery management system; Wherein, the built-in power distribution unit is connected to the plug, and the built-in battery management system is used to monitor the state of charge value of the built-in battery pack; The built-in power distribution unit is used to distribute the discharge current of the electric mixer truck transmitted via the plug among the pumping components and the built-in battery pack of the electric concrete pumping equipment; The vehicle controller of the electric concrete pumping equipment is also used to electrically connect the built-in battery pack with the built-in power distribution unit after detecting that pumping has stopped, if it is determined that the charging condition of the built-in battery pack is met based on the charge state value and the set lower limit of the charge state, so as to charge the built-in battery pack using the on-board battery pack of the electric mixer truck.
8. The concrete pumping system according to claim 7, characterized in that: The vehicle controller of the electric concrete pumping equipment is further used to disconnect the electrical connection between the built-in battery pack and the built-in power distribution unit when a condition that the built-in battery pack stops charging is detected; The built-in battery pack charging stop condition includes at least one of the following: The vehicle controller of the electric concrete pumping equipment receives a pumping start instruction input by a user or a high-voltage power-off instruction generated by the electric mixer truck; The state of charge value is greater than or equal to a set state of charge upper limit value; The power level of the onboard battery pack in the electric mixer truck is less than the set lower power limit.
9. The concrete pumping system according to any one of claims 4 to 7, characterized in that: The external control switch is further used to send a connection disconnection signal to the vehicle controller of the electric concrete pumping equipment in response to the user's operation control; The vehicle controller of the electric concrete pumping equipment is further used to send a high-voltage power-off instruction to the vehicle controller of the electric mixer truck after receiving the connection disconnection signal; The vehicle controller of the electric mixer truck is also used to disconnect the connection between the on-board power distribution unit and the DC discharge socket after receiving the high-voltage power-down instruction, so as to stop continuing to deliver the discharge current to the electric concrete pumping equipment.
10. The concrete pumping system according to claim 9, characterized in that , The vehicle controller of the electric mixer truck is also used to unlock the plug after the on-board power distribution unit is disconnected from the DC discharge socket, so that the user can unplug the plug from the DC discharge socket.