Liquid circulation pressure balancing system

Abstract

The utility model provides a liquid circulation pressure balance system which comprises a liquid cooling motor, a system pump, a balance pump, a pressure sensor and a control module. The pressure sensor is used for sensing a pipeline pressure value of the pipeline. The control module is used for receiving a pipeline pressure value. The control module updates the balance pump control signal based on the pipeline pressure value and transmits the balance pump control signal to the balance pump, so that the balance pump adjusts the output pressure based on the balance pump control signal. According to the liquid circulation pressure balance system, output is dispersed through the multiple pumps so as to prolong the service life of the pumps, the pressure sensor senses the change of the pressure value of the pipeline at any time so as to master the state of the liquid circulation pressure balance system in real time, related personnel can respond in real time when abnormal conditions occur, and the purpose of improving maintenance convenience is achieved.

Description

Technical Field

[0001] This application relates to a pressure balancing system, and more particularly to a liquid circulation pressure balancing system. Background Technology

[0002] To automatically handle or move objects, machine systems typically use motors to drive different components (e.g., robotic arms, conveyors). Since motors generate heat during operation, prolonged operation can lead to inadequate heat dissipation and reduced efficiency. To effectively lower motor temperature, a liquid-cooled motor has been proposed. This motor works in conjunction with a circulating system, using coolant to remove heat from the motor body and lower its temperature.

[0003] However, existing technology can only detect damage to the circulation system when the temperature of the liquid-cooled motor becomes abnormal or the circulation system stops, which makes it impossible for relevant personnel to grasp the status of the circulation system in time and carry out timely maintenance, causing inconvenience in maintenance.

[0004] Therefore, how to propose a cyclical system that can monitor its operational status in real time is one of the problems that this field seeks to solve. Utility Model Content

[0005] To address the aforementioned technical issues, this application proposes a liquid circulation pressure balancing system that uses multiple pumps to distribute power, thereby extending the service life of the pumps. It also continuously senses changes in pipeline pressure to instantly monitor the status of the liquid circulation pressure balancing system, enabling relevant personnel to react promptly in case of abnormal situations and improving maintenance convenience.

[0006] To achieve the above objectives, this application proposes a liquid circulation pressure balancing system, comprising a liquid-cooled motor, a system pump, a balancing pump, a pressure sensor, and a control module. The liquid-cooled motor is connected to a pipeline, and coolant flows through the pipeline to adjust the temperature of the liquid-cooled motor. The system pump is connected to the liquid-cooled motor through the pipeline and delivers the coolant to the liquid-cooled motor at a first output pressure. The balancing pump is connected to the system pump through the pipeline and adjusts its output second pressure based on a balancing pump control signal, and delivers the coolant to the system pump at the second output pressure. The pressure sensor senses the pipeline pressure value. The control module is electrically connected to the pressure sensor and the balancing pump, and receives the pipeline pressure value. During installation, the control module updates the balancing pump control signal based on the pipeline pressure value and transmits the balancing pump control signal to the balancing pump.

[0007] Through the above, the liquid circulation pressure balancing system of this application can distribute the power of multiple pumps to improve the service life of each pump, and can sense changes in pipeline pressure at any time to monitor the status of the liquid circulation pressure balancing system in real time, so that relevant personnel can react in time when abnormal situations occur, thereby improving the convenience of maintenance. Attached Figure Description

[0008] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0009] Figure 1 This is a schematic diagram of an embodiment of a liquid circulation pressure balancing system according to the present application.

[0010] Figure 2 This is a schematic diagram of an embodiment of the control module according to an embodiment of this application;

[0011] Figure 3 This is a schematic diagram of another embodiment of the liquid circulation pressure balancing system according to the embodiments of this application;

[0012] Figure 4 This is a schematic diagram of an embodiment of the pressure balancing method according to the present application.

[0013] Figure 5 This is a schematic diagram of another embodiment of the pressure balancing method according to the present application;

[0014] Figure 6 This is a schematic diagram of yet another embodiment of the pressure balancing method according to the present application. Detailed Implementation

[0015] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0016] Please refer to Figure 1 and Figure 2 . Figure 1 This is a schematic diagram of an embodiment of a liquid circulation pressure balancing system according to an embodiment of this application. Figure 2This is a schematic diagram of an embodiment of the control module according to an embodiment of this application. The liquid circulation pressure balancing system 1 includes a system pump 10, a liquid-cooled motor 11, a pressure sensor 12, a balancing pump 13, and a control module 14. The system pump 10, the liquid-cooled motor 11, the pressure sensor 12, and the balancing pump 13 are connected through a pipe 15. The pipe 15 is, for example, a metal pipe or a plastic pipe. Coolant flows through the pipe 15.

[0017] System pump 10 is connected to liquid-cooled motor 11 via pipe 15. System pump 10 delivers coolant to liquid-cooled motor 11 at a first output pressure. Liquid-cooled motor 11 is connected to pipe 15. Coolant flows through liquid-cooled motor 11 via pipe 15. The heat of liquid-cooled motor 11 is carried away by the flowing coolant, thereby adjusting the temperature of liquid-cooled motor 11 and preventing it from operating in a high-temperature environment. Pressure sensor 12 is installed on pipe 15, located between liquid-cooled motor 11 and balancing pump 13. Pressure sensor 12 senses the pipe pressure value of pipe 15 and transmits the pipe pressure value to control module 14. Balancing pump 13 is connected to system pump 10 via pipe 15. Balancing pump 13 receives balancing pump control signals from control module 14 and adjusts its output second pressure based on the balancing pump control signals to deliver coolant to system pump 10 at the second output pressure. The balancing pump control signal is, for example, a voltage control signal or a current control signal. In one embodiment, the number of balancing pumps 13 may be multiple, and this application is not limited thereto.

[0018] Therefore, the liquid circulation pressure balancing system 1 of this application is powered by at least the system pump 10 and the balancing pump 13. That is, the output of the system pump 10 is reduced by the balancing pump 13, and the output of the pump in the liquid circulation pressure balancing system 1 is also reduced, so as to improve the service life of the system pump 10 and the liquid circulation pressure balancing system 1.

[0019] The control module 14 includes a network communication interface 141, an input / output interface 142, and a control unit 143. The control unit 143 is electrically connected to the network communication interface 141 and the input / output interface 142. The network communication interface 141 is, for example, a communication interface conforming to wired or wireless communication standards. The network communication interface 141 is, for example, a communication interface conforming to the Internet Protocol (TCP / IP) specification. The input / output interface 142 is, for example, a contact interface conforming to the NO (Normal Open) / NC (Normal Close) dry contact standard. The control unit 143 is, for example, a microcontroller. The control module 14 communicates with the pressure sensor 12 and the balancing pump 13 through the input / output interface 142. The control unit 143 receives pipeline pressure values ​​and outputs balancing pump control signals through the input / output interface 142. The control unit 143 pre-stores the ideal pressure value of the pipeline 15. The ideal pressure value can be a fixed value or a numerical range. For example, the ideal pressure value is, for example, -30 kPa, or between -30 kPa and -25 kPa. During the installation phase of the liquid circulation pressure balancing system 1, the control unit 143 receives the pipeline pressure value sensed by the pressure sensor 12 and determines whether to update the balancing pump control signal based on the received pipeline pressure value. For example, the control unit 143 compares the pipeline pressure value with the ideal pressure value to determine whether the pipeline pressure value is the same as the ideal pressure value, or whether the pipeline pressure value falls within the range of the ideal pressure value. If the determination is yes, it means that the current pipeline pressure value is the desired pipeline pressure value, the second output pressure of the balancing pump 13 is the desired output pressure, and the liquid circulation pressure balancing system 1 completes the adjustment of the pipeline pressure value. If the determination is no, it means that the current pipeline pressure value is not the desired pipeline pressure value. The control unit 143 further updates the balancing pump control signal and transmits the updated balancing pump control signal to the balancing pump 13. The balancing pump 13 increases or decreases the second output pressure based on the received balancing pump control signal. In other words, the balancing pump 13 pressurizes or depressurizes the coolant based on the received balancing pump control signal to adjust the pipeline pressure value to the desired pipeline pressure value.

[0020] In one embodiment, the control module 14 is electrically connected to the system pump 10 through the input / output interface 142, such as... Figure 3As shown. The control unit 143 of the control module 14 is used to generate a system pump control signal and transmit the system pump control signal to the system pump 10. The system pump control signal is, for example, a voltage control signal or a current control signal. During the installation phase of the liquid circulation pressure balancing system 1, relevant personnel (e.g., installers) can set the system pump control signal through the control unit 143, so that the system pump 10 delivers coolant to the liquid-cooled motor 11 at a desired first output pressure based on the system pump control signal. The first output pressure is, for example, 20 kPa.

[0021] After the installation phase of the liquid circulation pressure balancing system 1 is completed, the liquid circulation pressure balancing system 1 operates in the operation phase. During the operation phase, system pump 10 continuously delivers coolant to the liquid-cooled motor 11 at a first output pressure based on the system pump control signal determined during the installation phase. Balancing pump 13 continuously delivers coolant to system pump 10 at a second output pressure based on the balancing pump control signal determined during the installation phase. During the operation phase, pressure sensor 12 continuously senses the pipe pressure value of pipe 15 and transmits the pipe pressure value to control module 14.

[0022] During operation, the control unit 143 of the control module 14 receives the pipeline pressure value sensed by the pressure sensor 12 and determines whether to update the balancing pump control signal based on the received pipeline pressure value. For example, the control unit 143 compares the pipeline pressure value with the ideal pressure value to determine whether the pipeline pressure value is the same as the ideal pressure value, or whether the pipeline pressure value falls within the range of the ideal pressure value. If the determination is yes, it means that the current pipeline pressure value is the expected pipeline pressure value, the second output pressure output by the balancing pump 13 is the expected output pressure, and the liquid circulation pressure balancing system 1 maintains normal operation. If the determination is no, it means that the current pipeline pressure value is not the expected pipeline pressure value, that is, there is an abnormality in the pipeline 15 of the liquid circulation pressure balancing system 1 (e.g., pipeline damage, abnormal output of the system pump 10), causing a change in the pipeline pressure value. The control unit 143 further updates the balancing pump control signal based on the pipeline pressure value and transmits the updated balancing pump control signal to the balancing pump 13. The balancing pump 13 increases or decreases the second output pressure based on the received balancing pump control signal. In other words, the balancing pump 13 pressurizes or depressurizes the coolant based on the received balancing pump control signal to adjust the pipeline pressure value to the desired pipeline pressure value, thereby preventing further damage to the system pump 10, liquid-cooled motor 11, pressure sensor 12 and balancing pump 13 in the liquid circulation pressure balancing system 1 due to changes in pipeline pressure value.

[0023] Furthermore, the control module 14 communicates with external devices via a network communication interface 141 and / or an input / output interface 142. These external devices may be, for example, remote control systems or machine systems. For instance, the control module 14 may communicate with a remote control system via the network communication interface 141, and with the machine system of the liquid-cooled motor 11 via the input / output interface 142. Therefore, the control unit 143 of the control module 14 can generate an alarm signal based on the pipeline pressure value, which is then transmitted to the external device. For example, during operation, when the control unit 143 compares the pipeline pressure value with the ideal pressure value and determines that the pipeline pressure value is different from the ideal pressure value, or that the pipeline pressure value does not fall within the range of the ideal pressure value, it indicates that the current pipeline pressure value is not the expected pipeline pressure value, meaning that an abnormality has occurred in the pipeline 15 of the liquid circulation pressure balance system 1, causing a change in the pipeline pressure value. Therefore, the control unit 143 can generate a warning signal based on the current pipeline pressure value and transmit the warning signal to an external device through the network communication interface 141 and / or the input / output interface 142. This allows personnel located remotely or near the machine to be aware of an anomaly in the liquid circulation pressure balancing system 1 via the warning signal, enabling them to immediately grasp the status of the liquid circulation pressure balancing system 1 and perform appropriate maintenance. In one embodiment, the warning signal may include the address information of the control module 14. Therefore, in embodiments with multiple liquid circulation pressure balancing systems 1, personnel can quickly identify the abnormal liquid circulation pressure balancing system 1 using the address information. In one embodiment, the warning signal may further include identification information of the balancing pump 13 and / or the system pump 10, allowing personnel to quickly identify the abnormal balancing pump 13 and / or the system pump 10 using the identification information.

[0024] Please refer to Figure 4 , Figure 4 This is a schematic diagram of an embodiment of the pressure balancing method during the installation phase according to an embodiment of this application. The pressure balancing method can be implemented in the liquid circulation pressure balancing system 1 described above. Figure 4 This includes steps S110, S120, S130, and S140.

[0025] In step S110, the pipeline pressure value is obtained. In this step, the pressure sensor 12 senses the pipeline pressure value of the pipeline 15 and transmits the pipeline pressure value to the control module 14, which obtains the pipeline pressure value. In step S120, it is determined whether the pipeline pressure value is the ideal pressure value. In this step, the control module 14 compares the pipeline pressure value with the ideal pressure value to determine whether the pipeline pressure value is the same as the ideal pressure value, or whether the pipeline pressure value falls within the range of the ideal pressure value. If the determination is yes, step S130 is executed; otherwise, step S140 is executed. In step S130, the balancing pump 13 maintains the output of the second output pressure according to the balancing pump control signal. In this step, since the control module 14 determines that the pipeline pressure value is the same as the ideal pressure value, or determines that the pipeline pressure value falls within the range of the ideal pressure value, it means that the current pipeline pressure value is the desired pipeline pressure value, and the second output pressure output by the balancing pump 13 is the desired output pressure. The adjustment of the liquid circulation pressure balancing system 1 is completed. In step S140, the balancing pump control signal is updated based on the pipeline pressure value, causing the balancing pump 13 to adjust its second output pressure according to the balancing pump control signal. In this step, since the control module 14 determines that the pipeline pressure value differs from the ideal pressure value, or determines that the pipeline pressure value does not fall within the range of the ideal pressure value, indicating that the current pipeline pressure value is not the expected pipeline pressure value, the control module 14 further updates the balancing pump control signal and transmits the updated balancing pump control signal to the balancing pump 13, causing the balancing pump 13 to increase or decrease its second output pressure based on the received balancing pump control signal to adjust the pipeline pressure value. After completing step S140, the process returns to step S110.

[0026] Please refer to Figure 5 , Figure 5 This is a schematic diagram of an embodiment of a pressure balancing method during the operation phase according to an embodiment of this application. The pressure balancing method can be implemented in the liquid circulation pressure balancing system 1 described above. Figure 5 This includes steps S210, S220, S230, and S240.

[0027] In step S210, the pipeline pressure value is obtained. In this step, the pressure sensor 12 senses the pipeline pressure value of the pipeline 15 and transmits the pipeline pressure value to the control module 14, which obtains the pipeline pressure value. In step S220, it is determined whether the pipeline pressure value is the ideal pressure value. In this step, the control module 14 compares the pipeline pressure value with the ideal pressure value to determine whether the pipeline pressure value is the same as the ideal pressure value, or whether the pipeline pressure value falls within the range of the ideal pressure value. If the determination is yes, step S230 is executed; otherwise, step S240 is executed. In step S230, the balancing pump 13 maintains the output of the second output pressure according to the balancing pump control signal. In this step, since the control module 14 determines that the pipeline pressure value is the same as the ideal pressure value, or determines that the pipeline pressure value falls within the range of the ideal pressure value, it means that the current pipeline pressure value is the expected pipeline pressure value, and the second output pressure output by the balancing pump 13 is the expected output pressure. After completing step S230, the process returns to step S210, allowing the control module 14 to continuously acquire the pipeline pressure value from the pressure sensor 12. In step S240, the balancing pump control signal is updated based on the pipeline pressure value, causing the balancing pump 13 to adjust its second output pressure according to the balancing pump control signal. In this step, since the control module 14 determines that the pipeline pressure value differs from the ideal pressure value, or determines that the pipeline pressure value does not fall within the range of the ideal pressure value, indicating that the current pipeline pressure value is not the expected pipeline pressure value, the control module 14 further updates the balancing pump control signal and transmits the updated balancing pump control signal to the balancing pump 13, causing the balancing pump 13 to increase or decrease its output second output pressure based on the received balancing pump control signal to adjust the pipeline pressure value. After completing step S240, the process returns to step S210.

[0028] Please refer to Figure 6 , Figure 6 This is a schematic diagram of another embodiment of the pressure balancing method during the operation phase according to the embodiments of this application. The pressure balancing method can be implemented in the liquid circulation pressure balancing system 1 described above. Figure 6 and Figure 5 The difference lies in that, after determining the error in step S220, step S250 is executed. In step S250, an alarm signal is generated and transmitted to an external device. In this step, since the control module 14 determines that the pipeline pressure value is different from the ideal pressure value, or determines that the pipeline pressure value does not fall within the range of the ideal pressure value, it means that the current pipeline pressure value is not the expected pipeline pressure value. Therefore, the control module 14 further generates a corresponding alarm signal based on the current pipeline pressure value and transmits the alarm signal to an external device. In this way, relevant personnel located remotely or near the machine can know that the liquid circulation pressure balance system 1 has malfunctioned through the alarm signal, and immediately grasp the status of the liquid circulation pressure balance system 1 so as to carry out corresponding maintenance in a timely manner.

[0029] In summary, the liquid circulation pressure balancing system of this application can distribute the power output of multiple pumps to extend the service life of each pump, and can sense changes in pipeline pressure at any time to monitor the status of the liquid circulation pressure balancing system in real time, so that relevant personnel can react immediately when abnormal situations occur, thereby improving the convenience of maintenance.

[0030] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0031] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms fall within the scope of protection of this application.

Claims

1. A liquid circulating pressure equalization system characterized by, include: A liquid-cooled motor is connected to a pipe, and coolant flows through the pipe to adjust the temperature of the liquid-cooled motor. The system pump is connected to the liquid-cooled motor through the pipe and delivers the coolant to the liquid-cooled motor at a first output pressure; A balancing pump is connected to the system pump through the pipeline. Based on the balancing pump control signal, the output second output pressure is adjusted to deliver the coolant to the system pump at the second output pressure. A pressure sensor is used to sense the pipe pressure value of the pipe; as well as The control module is electrically connected to the pressure sensor and the balancing pump to receive the pipeline pressure value. During the installation phase, the control module updates the balancing pump control signal based on the pipeline pressure value and transmits the balancing pump control signal to the balancing pump.

2. The liquid circulating pressure equalization system of claim 1, wherein, During operation, the system pump maintains the first output pressure to deliver the coolant to the liquid-cooled motor.

3. The liquid circulating pressure equalization system of claim 1, wherein, During operation, the control module updates the balancing pump control signal based on the pipeline pressure value and transmits the balancing pump control signal to the balancing pump.

4. The liquid circulating pressure equalization system of claim 1, wherein, During operation, the control module generates an alarm signal based on the pipeline pressure value, and the alarm signal is transmitted to an external device.

5. The liquid circulating pressure equalization system of claim 4, wherein, The balancing pump maintains the second output pressure to deliver the coolant to the system pump.

6. The liquid circulating pressure equalization system of claim 4, wherein, The external device is a remote control system or a machine tool system.

7. The liquid circulating pressure equalization system of claim 4, wherein, The warning signal includes the address information of the control module.

8. The liquid circulating pressure equalization system of claim 4, wherein, The warning signal includes identification information of the balance pump and / or the system pump.

9. The liquid circulating pressure equalization system of claim 1, wherein, The control module includes a network communication interface, an input / output interface, and a control unit. The control unit is electrically connected to the network communication interface and the input / output interface, and the input / output interface is communicatively connected to the pressure sensor and the balance pump.

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