Water-cooling heat dissipation type motor end cover and shell structure

Abstract

The invention provides a water-cooling heat dissipation type motor end cover and shell structure which comprises a motor outer shell, a motor inner shell, a first water cooling mechanism, a second water cooling mechanism, a water supply mechanism and a control console. Therefore, automatic switching between a basic heat dissipation mode in which only the first water cooling mechanism is started, an intelligent cooperation mode in which the two water cooling mechanisms are started cooperatively, and a full-power heat dissipation mode in which the two water cooling mechanisms are fully opened is intelligently realized. Through cooperation of the double water cooling channels and an intelligent control strategy, the problems of fixed heat dissipation capability, slow response and low energy efficiency in the prior art are solved, accurate matching of the heat dissipation capability and the actual working condition of the motor is realized, and the heat dissipation efficiency, the energy-saving effect and the system reliability are remarkably improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of motor heat dissipation, and particularly relates to a water-cooled heat dissipation type motor end cover and shell structure. BACKGROUND

[0002] With the development of motors towards miniaturization and high power, the heat generation per unit volume of the motor increases sharply, and efficient heat dissipation has become the key to guaranteeing the reliable operation and service life of the motor. The existing water-cooled motor adopts a structure of a single circulating water path, and the heat dissipation capacity is fixed, which is difficult to cope with the variable load conditions of the motor. At low load, the fixed power water-cooled pump will cause energy waste; at high load or overload, the single heat dissipation capacity may be insufficient, resulting in overheating of the motor, and there is a risk of insulation aging or even burning. In addition, some designs attempt to use a complex series water path, but the temperature difference between the cold end and the hot end is large, the heat dissipation efficiency is uneven, and the control system is simple and cannot intelligently adjust the cooling intensity according to the real-time temperature, which is slow to respond, and the overall energy efficiency and heat dissipation efficiency need to be improved. SUMMARY

[0003] In view of the above defects of the prior art, the purpose of the present application is to provide a water-cooled heat dissipation type motor end cover and shell structure.

[0004] The above technical purpose of the present application is achieved by the following scheme: A water-cooled heat dissipation type motor end cover and shell structure, comprising a motor outer shell and a motor inner shell, The motor inner shell is provided with a first water cooling mechanism and a second water cooling mechanism, the water outlet and the water inlet of the first water cooling mechanism and the second water cooling mechanism are on the same side, and the water supply mechanism provided at one end of the motor is connected through a pipeline; The motor outer shell is provided with a control console, and the control console is electrically connected with the water supply mechanism; The control console is provided with a data acquisition unit configured to acquire real-time temperature data of the motor inner shell, water flow data and water pressure data of the water cooling mechanism, and current operating power data of the motor; The control console is configured to acquire the data acquired by the data acquisition unit, and is configured to perform the following steps: S1, setting a basic temperature threshold, an efficient temperature threshold, a critical temperature threshold, a basic flow threshold and a maximum flow threshold; S2, judging whether the real-time temperature data of the motor is lower than the basic temperature threshold; If yes, a basic heat dissipation mode is executed; Otherwise, the next step is executed; The basic heat dissipation mode is to start only the first water cooling mechanism, and to run at a flow rate not lower than the basic flow threshold; S3, judging whether the real-time temperature data of the motor is lower than the high-efficiency temperature threshold value; If yes, the intelligent cooperation mode is executed; Otherwise, the next step is executed; The intelligent cooperation mode is to start the first water cooling mechanism and intermittently start the second water cooling mechanism, so that the comprehensive water flow is between the basic flow threshold value and the maximum flow threshold value; S4, judging whether the real-time temperature data of the motor is lower than the critical temperature threshold value; If yes, the full-power heat dissipation mode is executed; Otherwise, the next step is executed; The full-power heat dissipation mode is to start the first water cooling mechanism and the second water cooling mechanism at the same time, and the total water flow reaches the maximum flow threshold value; S5, when the real-time temperature data reaches or exceeds the critical temperature threshold value, an overheat warning is issued while the full-power heat dissipation mode is executed. Further, in the intelligent cooperation mode of S3, the control console adjusts the running time of the second water cooling mechanism according to the closeness of the real-time temperature data to the high-efficiency temperature threshold value; the closeness is divided into three sections, the first section is that the temperature difference between the real-time temperature data and the high-efficiency temperature threshold value is less than 1℃, the second section is that the temperature difference between the real-time temperature data and the high-efficiency temperature threshold value is 1℃-2℃, and the third section is that the temperature difference between the real-time temperature data and the high-efficiency temperature threshold value is 2℃-3℃.

[0005] Further, the control console is further configured to obtain motor running power data; when the running power data exceeds a preset power threshold value, the set value of the basic temperature threshold value and / or the high-efficiency temperature threshold value is reduced.

[0006] Further, the control console is further configured to obtain water flow data of the water cooling circuit; when the full-power heat dissipation mode is executed, if the water flow data is lower than a preset safety flow threshold value, it is judged that the water cooling system is abnormal, and an emergency warning is executed.

[0007] Further, the water cooling channel of the first water cooling mechanism is provided with a convex strip, the second water cooling mechanism is a smooth water cooling channel, and the first water cooling mechanism and the second water cooling mechanism are alternately arranged on the motor inner shell.

[0008] Further, a water temperature sensor and a heater are integrated inside the water supply mechanism; the control console is configured to control the heater to start to prevent the cooling liquid from freezing when it is detected that the ambient temperature is below the freezing point.

[0009] Further, the control console executes an emergency alarm, and if the real-time temperature data does not start to decrease within a preset time, a control signal is generated to reduce the operating load of the motor or to execute a shutdown operation.

[0010] The present application has the following advantages compared with the prior art: (1) By means of the double water cooling mechanism and the multi-stage temperature control strategy, the problem of fixed cooling capacity of single water path is completely solved. Only the slow water cooling mechanism is started at low load to avoid energy waste; at high load, intelligent cooperation or full cooling is performed to ensure sufficient cooling capacity. This on-demand active cooling mode can significantly reduce energy consumption compared with the traditional continuous full-power cooling scheme.

[0011] (2) By arranging the inlet and outlet of the double water cooling channels on the same side and alternately arranging them in the inner shell, the structure is compact, and the disadvantages of large temperature difference between hot and cold ends and uneven cooling caused by complex series water paths are avoided. Combined with the rapid response control based on real-time temperature and power prediction, the system can timely suppress temperature rise, effectively prevent motor insulation aging and burning risk, and greatly improve the operation reliability and life of the motor under variable load conditions. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a control console work flow chart of the present application; Figure 2 is an overall schematic diagram of the motor inner shell; Figure 3 is a first water cooling mechanism schematic diagram of the present application; Figure 4 is a second water cooling mechanism schematic diagram of the present application; Figure 5 is an overall schematic diagram of the motor shell of the present application.

[0013] Reference signs: 1, motor shell; 2, motor inner shell; 3, first water cooling mechanism; 4, second water cooling mechanism; 5, water supply mechanism; 6, pipe; 7, control console; 8, convex strip; 9, waterproof sealing strip. DETAILED DESCRIPTION

[0014] The embodiments of the present application will be described in detail below. The following embodiments are implemented on the premise of the technical scheme of the present application, and detailed implementation methods and specific operation processes are given, but the protection scope of the present application is not limited to the following embodiments.

[0015] A water-cooled heat dissipation type motor end cover and shell structure, as shown in Figures 2-5 , includes a motor shell 1, a motor inner shell 2, a water supply mechanism 5, and a control console 7.

[0016] In this embodiment, the inner housing 2 of the motor is provided with a first water cooling mechanism 3 and a second water cooling mechanism 4. The first water cooling mechanism 3 and the second water cooling mechanism 4 are independent water circuit systems. The water outlet and water inlet of the first water cooling mechanism 3 and the second water cooling mechanism 4 are located on the same side and connected to the water supply mechanism 5 through the pipe 6.

[0017] In this embodiment, the first water-cooling mechanism 3 is a slow water-cooling mechanism, such as... Figure 3 As shown, the water-cooling channel is provided with protrusions 8 to increase turbulence and enhance heat exchange efficiency, which is suitable for basic heat dissipation.

[0018] In this embodiment, the second water-cooling mechanism 4 is a rapid water-cooling mechanism, such as... Figure 4 As shown, the water-cooling channel is a smooth channel with low flow resistance, suitable for efficient heat dissipation. These two sets of water-cooling channels are arranged alternately on the inner shell 2 of the motor to ensure uniform heat dissipation, with at least two first water-cooling mechanisms 3 and two second water-cooling mechanisms 4.

[0019] In this embodiment, the edges of the first water-cooling mechanism 3 and the second water-cooling mechanism 4 are provided with waterproof sealing strips 9. The motor housing 1 and the motor inner housing 2 are connected through the waterproof sealing strips 9 to form a water-cooling circuit.

[0020] In this embodiment, the water supply mechanism 5 is located at the end of the motor and contains a water pump, a water tank, and a water temperature sensor. The water supply mechanism 5 is connected to the inlet and outlet of the first and second water cooling mechanisms 4 through pipelines to form a closed-loop cooling circuit.

[0021] In this embodiment, the control console 7 is electrically connected to the water supply mechanism 5.

[0022] In this embodiment, the console 7 includes a data acquisition unit, which is configured to acquire real-time temperature data, water flow rate data and water pressure data of the water cooling mechanism at the inner shell 2 of the motor, and acquire the current operating power data of the motor.

[0023] In this embodiment, the console 7 is configured to acquire the data obtained by the data acquisition unit and is configured to execute the following steps, such as... Figure 1 As shown: S1. Set the basic temperature threshold, high-efficiency temperature threshold, critical temperature threshold, basic flow rate threshold, and maximum flow rate threshold; S2. Determine whether the real-time temperature data of the motor is lower than the basic temperature threshold. If so, execute the basic cooling mode; Otherwise, proceed to the next step; The basic heat dissipation mode is to only activate the first water cooling mechanism 3 and operate at a flow rate not lower than the basic flow rate threshold; This mode is suitable for the light load or standby state of the motor, achieving silence and energy saving.

[0024] S3, judging whether the real-time temperature data of the motor is lower than the high-efficiency temperature threshold value; If yes, the intelligent cooperation mode is executed; Otherwise, the next step is executed; The intelligent cooperation mode is to start the first water cooling mechanism 3 and intermittently start the second water cooling mechanism 4, so that the comprehensive water flow is between the basic flow threshold value and the maximum flow threshold value. For example, the closer the temperature is to the high-efficiency temperature threshold value, the greater the proportion of time that the second water cooling mechanism 4 is turned on within a working cycle, so that the comprehensive water flow is intelligently maintained between the basic flow threshold value and the maximum flow threshold value. This mode corresponds to the regular running condition of the motor, achieving the balance between energy efficiency and heat dissipation.

[0025] S4, judging whether the real-time temperature data of the motor is lower than the critical temperature threshold value; If yes, the full-heat-dissipation mode is executed; Otherwise, the next step is executed; The full-heat-dissipation mode is to simultaneously start the first water cooling mechanism 3 and the second water cooling mechanism 4, and make the total water flow reach the maximum flow threshold value, so as to cope with the heavy load condition of the motor; S5, when the real-time temperature data reaches or exceeds the critical temperature threshold value, a overheat warning is issued while the full-heat-dissipation mode is executed.

[0026] In the intelligent cooperation mode of S3 in the embodiment, the console 7 adjusts the running time of the second water cooling mechanism 4 according to the closeness of the real-time temperature data to the high-efficiency temperature threshold value.

[0027] The closeness is divided into three sections, the first section is that the temperature difference between the real-time temperature data and the high-efficiency temperature threshold value is less than 1℃, the second section is that the temperature difference between the real-time temperature data and the high-efficiency temperature threshold value is 1℃-2℃, and the third section is that the temperature difference between the real-time temperature data and the high-efficiency temperature threshold value is 2℃-3℃. When the closeness of the real-time temperature data to the high-efficiency temperature threshold value is in the first section, the running time of the second water cooling mechanism is the longest; when the closeness is in the second section, the running time of the second water cooling mechanism is shorter; and when the closeness is in the third section, the running time of the second water cooling mechanism is the shortest.

[0028] The console 7 in the embodiment is also configured to obtain motor running power data; when the running power data exceeds a preset power threshold value, the set value of the basic temperature threshold value and / or the high-efficiency temperature threshold value is reduced.

[0029] The control console 7 in the embodiment is further configured to acquire water flow data of the water cooling circuit; when the full-power heat dissipation mode is executed, if the water flow data is lower than a preset safety flow threshold, it is determined that the water cooling system is abnormal, and an emergency alarm is executed.

[0030] The water cooling passage of the first water cooling mechanism 3 in the embodiment is provided with a convex strip 8, the second water cooling mechanism 4 is a smooth water cooling passage, and the first water cooling mechanism 3 and the second water cooling mechanism 4 are alternately arranged on the motor inner shell 2.

[0031] The water feeding mechanism 5 in the embodiment is internally integrated with a water temperature sensor and a heater; the control console 7 is configured to control the heater to start to prevent the cooling liquid from freezing when it is detected that the ambient temperature is lower than the freezing point.

[0032] After the control console 7 in the embodiment executes the emergency alarm, if the real-time temperature data does not start to decrease within a preset time, a control signal is generated to reduce the operation load of the motor or execute a shutdown operation.

[0033] In summary, the application provides an intelligent and efficient water cooling heat dissipation type motor end cover and shell structure, which adopts two kinds of slow and fast water cooling mechanisms arranged alternately, cooperates with intelligent control of multiple temperature thresholds, realizes precise matching of heat dissipation capacity and actual working conditions of the motor. It innovatively dynamically switches three modes of basic heat dissipation, intelligent cooperation and full-power heat dissipation by monitoring real-time temperature and operation power, and integrates system abnormality monitoring and low-temperature protection functions. The scheme effectively solves the problems of fixed single water cooling and slow response of the traditional single water cooling, improves the heat dissipation efficiency, guarantees the reliability and service life of the motor, and realizes energy saving and consumption reduction.

[0034] The above describes the preferred embodiments of the application in detail. It should be understood that those skilled in the art can make many modifications and changes to the application without creative labor based on the concept of the application. Therefore, any technical solution obtained by logical analysis, reasoning or limited test based on the existing technology according to the concept of the application should be within the protection scope determined by the claims.

Claims

1. A water-cooled heat dissipating motor end cover and housing structure, characterized by, The motor housing and the motor inner housing are provided with a first water cooling mechanism and a second water cooling mechanism, the water outlet and the water inlet of the first water cooling mechanism and the second water cooling mechanism are located on the same side, and the water supply mechanism at one end of the motor is connected through a pipeline. The motor housing is provided with a control console, and the control console is electrically connected with the water supply mechanism. The control console is provided with a data acquisition unit configured to acquire real-time temperature data at the motor inner housing, water flow data and water pressure data of the water cooling mechanism, and current operating power data of the motor. The control console is configured to acquire the data acquired by the data acquisition unit, and is configured to perform the following steps: S1, setting a basic temperature threshold, an efficient temperature threshold, a critical temperature threshold, a basic flow threshold and a maximum flow threshold; S2, judging whether the real-time temperature data of the motor is lower than the basic temperature threshold; If yes, execute the basic heat dissipation mode; Otherwise, execute the next step; The basic heat dissipation mode is to start only the first water cooling mechanism, and the flow is not less than the basic flow threshold; S3, judging whether the real-time temperature data of the motor is lower than the efficient temperature threshold; If yes, execute the intelligent cooperation mode; Otherwise, execute the next step; The intelligent cooperation mode is to start the first water cooling mechanism and intermittently start the second water cooling mechanism, so that the total water flow is between the basic flow threshold and the maximum flow threshold; S4, judging whether the real-time temperature data of the motor is lower than the critical temperature threshold; If yes, execute the full power heat dissipation mode; Otherwise, execute the next step; The full power heat dissipation mode is to start the first water cooling mechanism and the second water cooling mechanism at the same time, and the total water flow reaches the maximum flow threshold; S5, when the real-time temperature data reaches or exceeds the critical temperature threshold, an overheat alarm is issued while executing the full power heat dissipation mode. In the intelligent cooperation mode of S3, the control console adjusts the running time of the second water cooling mechanism according to the closeness of the real-time temperature data to the efficient temperature threshold; 2. The water-cooled, finned electric motor end bell and housing structure of claim 1, wherein, The closeness is divided into three sections, the first section is that the temperature difference between the real-time temperature data and the efficient temperature threshold is less than 1℃, the second section is that the temperature difference between the real-time temperature data and the efficient temperature threshold is 1℃-2℃, and the third section is that the temperature difference between the real-time temperature data and the efficient temperature threshold is 2℃-3℃. The control console is also configured to acquire motor operating power data; when the operating power data exceeds a preset power threshold, the set value of the basic temperature threshold and / or the efficient temperature threshold is reduced.

3. The water-cooled, finned electric motor end bell and housing structure of claim 1 wherein, The control console is also configured to acquire water flow data of the water cooling circuit; when executing the full power heat dissipation mode, if the water flow data is lower than a preset safety flow threshold, it is judged that the water cooling system is abnormal, and an emergency alarm is executed.

4. The water-cooled, finned electric motor end bell and housing structure of claim 1 wherein, The water cooling channel of the first water cooling mechanism is provided with a convex strip, the second water cooling mechanism is a smooth water cooling channel, and the first water cooling mechanism and the second water cooling mechanism are alternately arranged on the motor inner housing.

5. The water-cooled, finned electric motor end bell and housing structure of claim 1 wherein, ​ 6. The water-cooled, finned electric motor end bell and housing structure of claim 1 wherein, The water temperature sensor and the heater are integrated inside the water supply mechanism; the control console is configured to control the heater to start to prevent the cooling liquid from freezing when it is detected that the ambient temperature is below freezing point.

7. The water-cooled, finned electric motor end bell and housing structure of claim 1 wherein, After the control console executes the emergency alarm, if the real-time temperature data does not start to decrease within a preset time, a control signal is generated to reduce the operation load of the motor or to execute a shutdown operation.

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