Centralized drainage type thermal management system and robot

Abstract

The utility model relates to a centralized liquid drainage type heat management system and a robot, the centralized liquid drainage type heat management system comprises a liquid separation chamber, a control valve, a jacket, a liquid drainage valve, a driving pump and a heat pipe heat exchanger, the heat pipe heat exchanger comprises an evaporation section and a condensation section which are communicated, and a power element is arranged on the evaporation section; and the liquid working medium in the evaporation section can absorb heat, be gasified and enter the condensation section. The jacket sleeves the outer side of the condensation section, a liquid refrigerant is stored in the liquid separation chamber, the liquid separation chamber, the control valve, the jacket and the drain valve can be communicated to form a cooling flow path, and the driving pump can drive the refrigerant to flow in the cooling flow path, so that a gaseous working medium in the condensation section can release heat, be liquefied and flow back to the evaporation section. According to the centralized drainage type heat management system and the robot, the problems that a compressor is high in refrigeration power consumption and complex in structure are solved.

Description

Technical Field

[0001] The present application relates to the field of robot thermal management technology, and in particular to a centralized liquid drainage thermal management system and a robot. Background Art

[0002] With the advancement of science and technology, various sensors have emerged, which has created the prerequisite for the large-scale application of robots. It is understandable that robots cannot complete various complex movements without the power supply and motor drive. Usually, robots have multiple joints and corresponding drive motors. In addition, robots need to have enough energy to complete difficult and complex movements for a long time. Therefore, the battery power density on the robot is getting higher and higher. At the same time, the power density of the IGBT module (insulated gate bipolar transistor) associated with the drive motor is also increasing. Therefore, the heat dissipation of the battery and IGBT module is particularly critical.

[0003] At present, the heat dissipation of robots mainly relies on the compressor to cool the heat pipe heat exchanger. However, the high power of the compressor will greatly increase the power consumption of the robot, thereby reducing the robot's endurance. Moreover, the compressor needs to be equipped with a special condenser for heat dissipation. Therefore, the overall structure is relatively complex, which will greatly increase the weight and cost of the robot. Utility Model Content

[0004] Based on this, it is necessary to provide a centralized liquid discharge thermal management system and a robot to solve the problems of high power consumption and complex structure of existing compressor refrigeration.

[0005] The centralized liquid discharge thermal management system provided by the present application includes a liquid separation chamber, a control valve, a jacket, a liquid discharge valve, a driving pump and a heat pipe heat exchanger, wherein the heat pipe heat exchanger includes a connected evaporation section and a condensation section, and the power element is arranged in the evaporation section so that the liquid working medium in the evaporation section can absorb heat and gasify and enter the condensation section. The jacket is arranged outside the condensation section, and liquid refrigerant is stored in the liquid separation chamber. The liquid separation chamber, the control valve, the jacket and the liquid discharge valve can be connected to form a cooling flow path, and the driving pump can drive the refrigerant to flow in the cooling flow path so that the gaseous working medium in the condensation section can release heat and liquefy and flow back to the evaporation section.

[0006] In one embodiment, the centralized liquid discharge thermal management system further includes a liquid storage chamber, and the jacket can be connected to the liquid discharge valve through the liquid storage chamber. When the liquid discharge valve is closed, the refrigerant can enter the liquid storage chamber through the jacket and be stored in the liquid storage chamber.

[0007] In one embodiment, the centralized liquid discharge thermal management system also includes a control module and a second liquid level sensor, the control module is electrically connected to the second liquid level sensor and the drain valve, respectively, the second liquid level sensor is arranged in the liquid storage chamber, when the second liquid level sensor measures that the refrigerant level in the liquid storage chamber is higher than the third preset liquid level, the control module can control the drain valve to open, so that the refrigerant in the liquid storage chamber is discharged through the drain valve.

[0008] In one of the embodiments, the jacket and the control valve are arranged in one-to-one correspondence, and it is defined that each jacket and the corresponding control valve constitute a heat dissipation branch, multiple heat dissipation branches are arranged in parallel, and the liquid separation chamber can be connected to the drain valve through multiple heat dissipation branches respectively.

[0009] In one embodiment, the centralized liquid discharge thermal management system also includes a control module, a first liquid level sensor and an alarm. The control module is electrically connected to the first liquid level sensor and the alarm, respectively. The first liquid level sensor is arranged in the liquid separation chamber. When the first liquid level sensor measures that the refrigerant level in the liquid separation chamber is lower than the first preset liquid level or higher than the second preset liquid level, the control module can control the alarm to sound an alarm.

[0010] In one embodiment, the centralized liquid discharge thermal management system further includes a control module and a temperature sensor. The control module is electrically connected to a drive pump, a control valve, a liquid discharge valve and a temperature sensor, respectively. The temperature sensor is arranged on a power element. When the temperature sensor detects that the temperature of the power element is greater than or equal to a preset temperature, the control module can control the liquid discharge valve and the control valve to open, and enable the drive pump to drive the refrigerant to sequentially pass through the liquid separation chamber, the control valve, the jacket and the liquid discharge valve into the external atmosphere.

[0011] In one embodiment, the driving pump is a gear pump, a vane pump, a plunger pump or a screw pump.

[0012] In one embodiment, the power element is partially or completely immersed in the working medium of the evaporation section; or, the power element is attached to the outer surface of the evaporation section.

[0013] The present application also provides a robot, which includes the centralized liquid drainage thermal management system described in any one of the above embodiments.

[0014] In one embodiment, there are three liquid separation chambers, which are defined as a first chamber, a second chamber and a third chamber. The first chamber is arranged in the head of the robot, the second chamber is arranged in the chest cavity of the robot, and the third chamber is arranged in the abdominal cavity of the robot.

[0015] Compared with the prior art, the centralized liquid-discharge thermal management system and robot provided by the present application are configured such that when the power element generates heat, the power element can transfer heat to the liquid working medium in the evaporation section, so that the liquid working medium is vaporized and enters the condensation section. Afterwards, the control valve is opened, and the refrigerant in the liquid separation chamber enters the jacket through the control valve. Since the jacket is arranged on the outside of the condensation section, the refrigerant in the jacket can dissipate heat to the condensation section, so that the gaseous working medium in the condensation section is liquefied and refluxed to the evaporation section. Furthermore, when the drain valve is opened, the refrigerant in the jacket will be discharged through the drain valve.

[0016] From the above, it can be seen that the present application only needs to set up a driving pump to drive the refrigerant flow in the cooling flow path to realize the working medium circulation of the heat pipe heat exchanger and realize the heat dissipation of the power element. Compared with setting up a compressor, it is obvious that the driving pump in the present application consumes less power, and compared with the compressor, which needs to be equipped with a special condenser for heat dissipation, the structure of the driving pump with the liquid separation chamber is simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A front view of a robot according to an embodiment of the present application;

[0019] Figure 2 A piping diagram of a centralized liquid discharge thermal management system according to an embodiment of the present application;

[0020] Figure 3 A pipeline diagram of the upper body of a robot according to an embodiment of the present application;

[0021] Figure 4 A pipeline diagram of the lower body of a robot according to an embodiment of the present application.

[0022] Figure numerals: 1000, robot; 100, liquid separation chamber; 110, first chamber; 120, second chamber; 130, third chamber; 200, control valve; 300, jacket; 400, drain valve; 500, drive pump; 600, heat pipe exchanger; 610, evaporation section; 620, condensation section; 700, power element; 710, battery; 720, chip; 730, IGBT module; 800, liquid storage chamber. DETAILED DESCRIPTION

[0023] With the advancement of science and technology, various sensors have emerged, which has created the prerequisite for the large-scale application of robots. It is understandable that robots cannot complete various complex movements without the power supply and motor drive. Usually, robots have multiple joints and corresponding drive motors. In addition, robots need to have enough energy to complete difficult and complex movements for a long time. Therefore, the battery power density on the robot is getting higher and higher. At the same time, the power density of the IGBT module (insulated gate bipolar transistor) associated with the drive motor is also increasing. Therefore, the heat dissipation of the battery and IGBT module is particularly critical.

[0024] At present, the heat dissipation of robots mainly relies on the compressor to cool the heat pipe heat exchanger. However, the high power of the compressor will greatly increase the power consumption of the robot, thereby reducing the robot's endurance. Moreover, the compressor needs to be equipped with a special condenser for heat dissipation. Therefore, the overall structure is relatively complex, which will greatly increase the weight and cost of the robot.

[0025] See also Figure 1-Figure 4 In order to solve the problem of large power consumption and complex structure of existing compressor refrigeration, the present application provides a centralized liquid discharge type thermal management system and a robot 1000, which includes a liquid separation chamber 100, a control valve 200, a jacket 300, a liquid discharge valve 400, a drive pump 500 and a heat pipe heat exchanger 600, and the heat pipe heat exchanger 600 includes a connected evaporation section 610 and a condensation section 620. The power element 700 (including but not limited to a battery 710, a chip 720 and an IGBT module 730) is arranged in the evaporation section 610, so that the liquid working medium in the evaporation section 610 can absorb heat and gasify and enter the condensation section 620.

[0026] In this embodiment, the chip 720 is disposed on the head of the robot 1000 , the battery 710 is disposed on the chest of the robot 1000 , and the IGBT module 730 is disposed on the limbs of the robot 1000 .

[0027] Specifically, in order to improve the heat dissipation effect of the power element 700 , in one embodiment, the power element 700 is partially or completely immersed in the working medium of the evaporation section 610 .

[0028] But not limited to this, in other embodiments, the power element 700 can also be attached to the outer surface of the evaporation section 610, that is, the power element 700 and the evaporation section 610 of the heat pipe exchanger 600 are in contact heat exchange, and the contact surface adopts a cold copper spraying process, or the contact surface adopts a tin soldering process.

[0029] Furthermore, it should be noted that the power elements 700 are all disposed at a relatively deep position inside the robot 1000 , and the condensing section 620 of the heat pipe exchanger 600 corresponding to the power elements 700 is disposed at a position close to the body surface of the robot 1000 .

[0030] Such arrangement can, on the one hand, prevent the power element 700 from being damaged by collision and prevent the power element 700 from scalding people who come into contact with it, and on the other hand, facilitate rapid drainage of the drain valve 400.

[0031] Furthermore, if Figure 2-Figure 4 As shown, the jacket 300 is arranged on the outside of the condensing section 620, and the liquid refrigerant (including but not limited to environmentally friendly refrigerants such as water and ethanol) is stored in the liquid separation chamber 100. The liquid separation chamber 100, the control valve 200, the jacket 300 and the drain valve 400 can be connected to form a cooling flow path, and the driving pump 500 can drive the refrigerant to flow in the cooling flow path, so that the gaseous working medium in the condensing section 620 can release heat, liquefy and flow back to the evaporation section 610.

[0032] It should be noted that in order to enable the liquid separation chamber 100 to drain liquid quickly, in one embodiment, the liquid separation chamber 100 is provided with a first balancing hole (not shown) that can be connected to the external atmosphere to balance the air pressure in the liquid separation chamber 100. A first balancing valve (not shown) can be provided at the first balancing hole to open or close the first balancing hole at any time.

[0033] Specifically, the driving pump 500 includes, but is not limited to, a gear pump, a vane pump, a plunger pump, and a screw pump.

[0034] It should be noted that, since the refrigerant in the liquid separation chamber 100 is continuously discharged through the drain valve 400 , the refrigerant in the liquid separation chamber 100 needs to be replenished regularly.

[0035] With such arrangement, when the power element 700 generates heat, the power element 700 can transfer heat to the liquid working medium in the evaporation section 610, so that the liquid working medium is vaporized and enters the condensation section 620. Afterwards, the control valve 200 is opened, and the refrigerant in the liquid separation chamber 100 enters the jacket 300 through the control valve 200. Since the jacket 300 is sleeved on the outside of the condensation section 620, the refrigerant in the jacket 300 can dissipate heat to the condensation section 620, so that the gaseous working medium in the condensation section 620 is liquefied and flows back to the evaporation section 610. Furthermore, when the drain valve 400 is opened, the refrigerant in the jacket 300 is discharged through the drain valve 400.

[0036] As can be seen from the above, the present application only needs to set up a driving pump 500 to drive the refrigerant in the cooling flow path to realize the working medium circulation of the heat pipe heat exchanger 600 and realize the heat dissipation of the power element 700. Compared with setting up a compressor, it is obvious that the driving pump 500 in the present application consumes less power, and compared with the compressor, which needs to be equipped with a special condenser for heat dissipation, the structure of the driving pump 500 with the liquid separation chamber 100 is simpler.

[0037] In one embodiment, the centralized liquid discharge thermal management system also includes a control module (not shown), a first liquid level sensor (not shown) and an alarm (not shown). The control module is electrically connected to the first liquid level sensor and the alarm, respectively. The first liquid level sensor is arranged in the liquid separation chamber 100. When the first liquid level sensor measures that the refrigerant level in the liquid separation chamber 100 is lower than the first preset liquid level or higher than the second preset liquid level, the control module can control the alarm to sound an alarm to remind the staff to replenish the refrigerant in time or stop replenishing the refrigerant.

[0038] It should be noted that the alarm can be a sound alarm, in which case the alarm can be set inside the robot 1000 or on the body surface of the robot 1000. The alarm can also be a light-emitting alarm, in which case the alarm is set on the body surface of the robot 1000 as much as possible, so that the staff can perceive the signal sent by the alarm in time.

[0039] Such a setting can remind the staff to replenish the refrigerant in time to avoid the centralized liquid discharge thermal management system from being unable to effectively cool.

[0040] In one embodiment, the centralized liquid discharge thermal management system also includes a control module and a temperature sensor (not shown). The control module is electrically connected to the drive pump 500, the control valve 200, the liquid discharge valve 400 and the temperature sensor, respectively. The temperature sensor is arranged on the power element 700. When the temperature sensor detects that the temperature of the power element 700 is greater than or equal to the preset temperature, the control module can control the liquid discharge valve 400 and the control valve 200 to open, and enable the drive pump 500 to drive the refrigerant to enter the external atmosphere through the liquid separation chamber 100, the control valve 200, the jacket 300 and the liquid discharge valve 400 in sequence.

[0041] Specifically, if the power element 700 is a battery 710 , the temperature of the battery 710 can be controlled between 20° C. and 30° C.; if the power element 700 is an IGBT module 730 , the temperature of the IGBT module 730 can be controlled below 150° C.

[0042] Such a setting greatly improves the intelligence level of the centralized liquid discharge thermal management system.

[0043] In one embodiment, if Figure 2 As shown, the centralized liquid discharge thermal management system also includes a liquid storage chamber 800 , and the jacket 300 can be connected to the liquid discharge valve 400 through the liquid storage chamber 800 . When the liquid discharge valve 400 is closed, the refrigerant can enter the liquid storage chamber 800 through the jacket 300 and be stored in the liquid storage chamber 800 .

[0044] It should be noted that in order to enable the liquid storage chamber 800 to drain liquid quickly, in one embodiment, the liquid storage chamber 800 is provided with a second balancing hole (not shown) that can be connected to the external atmosphere to balance the air pressure in the liquid storage chamber 800. A second balancing valve (not shown) can be provided at the second balancing hole to open or close the second balancing hole at any time.

[0045] It will be appreciated that the fluid storage chamber 800 functions similarly to a human bladder.

[0046] With such arrangement, during the operation of the centralized liquid discharge thermal management system, when there is no condition to discharge the refrigerant to the outside, the refrigerant can be temporarily stored in the liquid storage chamber 800. On the one hand, the surrounding environment can be protected from being affected, and on the other hand, the switching frequency of the liquid discharge valve 400 can be reduced.

[0047] Furthermore, in one embodiment, the centralized liquid discharge thermal management system also includes a control module and a second liquid level sensor (not shown), the control module is electrically connected to the second liquid level sensor and the drain valve 400, respectively, the second liquid level sensor is arranged in the liquid storage chamber 800, when the second liquid level sensor measures that the refrigerant level in the liquid storage chamber 800 is higher than the third preset liquid level, the control module can control the drain valve 400 to open, so that the refrigerant in the liquid storage chamber 800 is discharged through the drain valve 400.

[0048] Obviously, such an arrangement can effectively control the opening and closing of the drain valve 400.

[0049] It should be noted that the liquid storage chamber 800 can be set in the thigh or calf of the robot 1000, and the liquid discharge valve 400 can be set at the sole of the robot 1000 to facilitate the robot 1000 to discharge liquid through the sole.

[0050] Alternatively, the liquid storage chamber 800 may also be disposed in the abdominal cavity of the robot 1000 , and the liquid discharge valve 400 may be disposed below the abdominal cavity of the robot 1000 , so that the robot 1000 can discharge liquid through the abdominal cavity.

[0051] Furthermore, in one embodiment, a liquid pump (not shown) may be disposed between the liquid storage chamber 800 and the liquid discharge valve 400 , so that the liquid pump can extract and discharge the refrigerant in the liquid storage chamber 800 .

[0052] However, it is not limited thereto. In other embodiments, the refrigerant in the liquid storage chamber 800 may be discharged by gravity.

[0053] In one embodiment, if Figure 3-Figure 4As shown, there are multiple power elements 700, and the power elements 700 are arranged in the corresponding heat pipe exchanger 600, and the condensing section 620 of the heat pipe exchanger 600 is correspondingly provided with a jacket 300, and the jacket 300 and the control valve 200 are arranged in a one-to-one correspondence, and it is defined that each jacket 300 and the corresponding control valve 200 constitute a heat dissipation branch, and the multiple heat dissipation branches are arranged in parallel, and the liquid separation chamber 100 can be connected to the drain valve 400 through the multiple heat dissipation branches respectively.

[0054] Such an arrangement is conducive to centralized drainage of the centralized drainage type thermal management system.

[0055] The present application also provides a robot 1000, which includes the centralized liquid drainage thermal management system described in any one of the above embodiments.

[0056] Further, in one embodiment, if Figure 1 As shown, there are three liquid separation chambers 100, which are defined as a first chamber 110, a second chamber 120 and a third chamber 130 respectively. From high to low, the first chamber 110, the second chamber 120 and the third chamber 130 are arranged in sequence. Specifically, the first chamber 110 is arranged at the head of the robot 1000, the second chamber 120 is arranged at the chest cavity of the robot 1000, and the third chamber 130 is arranged at the abdominal cavity of the robot 1000.

[0057] Such an arrangement reduces the length of the cooling flow path at various positions of the robot 1000, which is beneficial for the power element 700 at various positions of the robot 1000 to quickly circulate the refrigerant to dissipate heat.

[0058] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.

[0060] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0061] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0062] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0063] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0064] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0065] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

Claims

1. A centralized liquid discharge thermal management system, characterized in that: The invention comprises a liquid separation chamber (100), a control valve (200), a jacket (300), a drain valve (400), a driving pump (500) and a heat pipe heat exchanger (600), wherein the heat pipe heat exchanger (600) comprises an evaporation section (610) and a condensation section (620) which are connected to each other, and a power element (700) is arranged in the evaporation section (610) so that the liquid working medium in the evaporation section (610) can absorb heat, vaporize and enter the condensation section (620); The jacket (300) is sleeved on the outside of the condensing section (620), and liquid refrigerant is stored in the liquid separation chamber (100). The liquid separation chamber (100), the control valve (200), the jacket (300) and the drain valve (400) can be connected to form a cooling flow path, and the driving pump (500) can drive the refrigerant to flow in the cooling flow path, so that the gaseous working medium in the condensing section (620) can release heat, liquefy and flow back to the evaporation section (610).

2. The centralized liquid drainage thermal management system according to claim 1, characterized in that: The invention also comprises a liquid storage chamber (800), wherein the jacket (300) can be connected to the drain valve (400) through the liquid storage chamber (800); when the drain valve (400) is closed, the refrigerant can enter the liquid storage chamber (800) through the jacket (300) and be stored in the liquid storage chamber (800).

3. The centralized liquid drainage thermal management system according to claim 2, characterized in that: The invention also comprises a control module and a second liquid level sensor, wherein the control module is electrically connected to the second liquid level sensor and the drain valve (400) respectively, and the second liquid level sensor is arranged in the liquid storage chamber (800). When the second liquid level sensor measures that the refrigerant liquid level in the liquid storage chamber (800) is higher than a third preset liquid level, the control module can control the drain valve (400) to open, so that the refrigerant in the liquid storage chamber (800) is discharged through the drain valve (400).

4. The centralized liquid drainage thermal management system according to claim 1, characterized in that: The jacket (300) and the control valve (200) are arranged in a one-to-one correspondence, and it is defined that each jacket (300) and the corresponding control valve (200) constitute a heat dissipation branch, a plurality of the heat dissipation branches are arranged in parallel, and the liquid separation chamber (100) can be connected to the drain valve (400) through the plurality of the heat dissipation branches.

5. The centralized liquid drainage thermal management system according to claim 1, characterized in that: It also includes a control module, a first liquid level sensor and an alarm, wherein the control module is electrically connected to the first liquid level sensor and the alarm respectively, and the first liquid level sensor is arranged in the liquid separation chamber (100). When the first liquid level sensor measures that the refrigerant liquid level in the liquid separation chamber (100) is lower than a first preset liquid level or higher than a second preset liquid level, the control module can control the alarm to sound an alarm.

6. The centralized liquid drainage thermal management system according to claim 1, characterized in that: The invention also comprises a control module and a temperature sensor, wherein the control module is electrically connected to the driving pump (500), the control valve (200), the drain valve (400) and the temperature sensor respectively, and the temperature sensor is arranged on the power element (700). When the temperature sensor detects that the temperature of the power element (700) is greater than or equal to a preset temperature, the control module can control the drain valve (400) and the control valve (200) to open, and enables the driving pump (500) to drive the refrigerant to sequentially pass through the liquid separation chamber (100), the control valve (200), the jacket (300) and the drain valve (400) to enter the external atmosphere.

7. The centralized liquid drainage thermal management system according to claim 1, characterized in that: The driving pump (500) is a gear pump, a vane pump, a plunger pump or a screw pump.

8. The centralized liquid drainage thermal management system according to claim 1, characterized in that: The power element (700) is partially or completely immersed in the working fluid of the evaporation section (610); Alternatively, the power element (700) is attached to the outer surface of the evaporation section (610).

9. A robot, characterized in that: It includes a centralized liquid drainage thermal management system as described in any one of claims 1 to 8.

10. The robot according to claim 9, characterized in that: The number of the liquid separation chambers (100) is three, which are defined as a first chamber (110), a second chamber (120) and a third chamber (130), respectively; the first chamber (110) is arranged at the head of the robot (1000), the second chamber (120) is arranged at the chest cavity of the robot (1000), and the third chamber (130) is arranged at the abdominal cavity of the robot (1000).

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