Efficient cooling system for robot

Abstract

The utility model relates to the technical field of robots, in particular to a robot efficient heat dissipation system which comprises a robot shell, a circulating heat dissipation device, a fan and an external controller. The circulating heat dissipation device comprises a water cooling disc, a water pump and a water tank, the water cooling disc is embedded in the bottom of the robot shell, the two ends of the water pump are connected with the water cooling disc and the water tank respectively, the fan is arranged on the side face of the water cooling disc, and the external controller is electrically connected with the fan and the water pump. The water cooling disc comprises a center hole, a plurality of radial holes, eccentric vertical holes and spiral holes, the center hole is communicated with the radial holes, and the radial holes are communicated with the spiral holes through the eccentric vertical holes. The LED lamp has the advantages of being efficient in heat dissipation, good in dustproof and waterproof effect, convenient to maintain, low in cost and the like, has good economic benefits and is worthy of large-scale popularization.

Description

Technical Field

[0001] The utility model belongs to the technical field of robots, and in particular relates to a high-efficiency heat dissipation system for robots. Background Art

[0002] Robots are increasingly used in everyday life and industrial production. To facilitate movement and operation, they often feature rotatable joints and are powered by motors. However, the robot's interior is relatively enclosed, making it difficult for the joints and motors to dissipate heat naturally. This can lead to excessive heat accumulation and even affect the robot's operation. Furthermore, the robot's controller is also located within the robot. When the robot is operating, the controller's operating temperature often rises significantly, impacting its lifespan. Every few degrees of temperature increase significantly reduces the robot's reliability. Therefore, managing heat dissipation within the robot's interior to maintain proper operation has become a crucial issue.

[0003] To effectively dissipate heat within the robot's interior, external air or other gases at room temperature or a lower temperature are often introduced to dissipate heat within the robot. Existing heat dissipation technology involves placing numerous air tubes with holes within the robot. External air is introduced through these tubes into the robot and then discharged through the holes, thereby dissipating heat from components prone to overheating (such as motors and controllers). However, robots are increasingly used in both daily life and industrial production. To facilitate movement and operation, robots often have rotatable joints and are equipped with motors to provide power. However, the robot's interior is relatively closed, making it difficult for the heat generated by joint rotation and motor operation to dissipate naturally. This leads to excessive heat accumulation and even affects the robot's operation. Furthermore, the robot's controller is also located within the robot. When the robot is operating, the controller's operating temperature is often high, which can affect its service life. Every few degrees of temperature increase significantly reduces the robot's reliability. Therefore, how to dissipate heat within the robot's interior to maintain normal operation has become a crucial issue. To effectively dissipate heat within the robot's interior, external air or other gases at room temperature or a lower temperature are often introduced to dissipate heat within the robot. The existing heat dissipation technology is to arrange a plurality of air pipes inside the robot, and the air pipes have holes. External air is introduced into the robot through the air pipes and discharged through the holes in the air pipes, thereby dissipating heat from components that are prone to overheating (such as motors, controllers, etc.). However, this form of heat dissipation cannot meet the needs of high-power motors and control circuits, and requires that the interior of the robot is not completely sealed to allow for ventilation. In addition, the additional air pipes will lead to increased costs and increase the complexity of the robot's internal circuit design. The above-mentioned form of heat dissipation cannot meet the needs of high-power motors and control circuits, and requires that the interior of the robot is not completely sealed to allow for ventilation. In addition, the additional air pipes will lead to increased costs and increase the complexity of the robot's internal circuit design. Utility Model Content

[0004] Purpose of the utility model: The technical problem to be solved by the utility model is to provide a robot high-efficiency heat dissipation system in response to the defects of the existing technology, which has a simple structure, high heat dissipation efficiency, low manufacturing cost, good waterproof and dustproof effect, and easy maintenance.

[0005] Technical solution: In order to achieve the above-mentioned purpose, the utility model provides a robot high-efficiency heat dissipation system, including a robot housing, a circulating heat dissipation device, a fan and an external controller;

[0006] The circulating heat dissipation device includes a water cooling plate, a water pump and a water tank. The water cooling plate is embedded in the bottom of the robot housing. The two ends of the water pump are respectively connected to the water cooling plate and the water tank. The fan is provided on the side of the water cooling plate. The external controller is electrically connected to the fan and the water pump respectively.

[0007] The water cooling plate includes a central hole, a plurality of radial holes, an eccentric vertical hole, and a spiral hole. The central hole is connected with the radial holes, and the radial holes are connected with the spiral holes through the eccentric vertical holes.

[0008] Furthermore, the upper part of the water cooling plate is located inside the robot housing, and the lower part is located outside the robot housing. A sealing ring is provided at the installation position of the water cooling plate and the robot housing. The center hole is provided at the center of the water cooling plate, and the center hole is connected to the liquid outlet of the water pump. The radial holes are arranged to diverge with the center hole as the center, and the spiral holes are connected to the water tank.

[0009] The water pump pumps the cooling medium from the water tank into the water cooling plate. When the cooling medium passes through the radial holes, it exchanges heat with the inside of the robot. When it passes through the spiral holes, the heat is taken away by the fan and then returns to the water tank to form a circulating cooling closed loop.

[0010] Furthermore, the center hole has a circular cross-section, the radial holes have a semicircular cross-section and a flat top surface, and the sum of the cross-sectional areas of the radial holes is equal to the cross-sectional area of ​​the center hole; the eccentric vertical holes have a circular cross-section, each of the eccentric vertical holes has a different depth, and the spiral holes have a circular cross-section, and the cross-sectional area of ​​the spiral holes is equal to that of the center hole. The semicircular cross-section of the radial holes and the flat top surface increase the contact area between the cooling medium and the top heating element, which is beneficial to improving the heat dissipation effect. The design of the spiral holes increases the channel for reflux, facilitating the reflux of the cooling medium after it is fully cooled.

[0011] Furthermore, the water cooling plate is provided with heat dissipation fins on the outside of the spiral hole, and the fan is directly facing the heat dissipation fins. After the heat exchange, the temperature of the cooling medium is higher, and when it flows through the spiral hole, the heat is dissipated from the heat dissipation fins and carried away by the wind blown by the fan.

[0012] Furthermore, a thermal pad is provided on top of the water cooling plate, on which a mounting base is provided, on which the robot's controller and motor are mounted. Heat generated by the controller and motor during operation is efficiently transferred to the water cooling plate via the thermal pad.

[0013] Furthermore, the bottom surface of the robot housing is provided with robot legs, an external mounting platform is provided between the robot legs, and the circulating heat dissipation device, fan, and external controller are provided on the external mounting platform. The circulating heat dissipation device, fan, and external controller are installed externally for easy routine maintenance.

[0014] Furthermore, a temperature sensor is installed on the outside of the water tank, and the temperature sensor is connected to the external controller via a signal line. The temperature sensor detects the temperature of the cooling medium flowing back into the water tank and feeds back the temperature information to the external controller.

[0015] Furthermore, the water pump is a stepless speed regulating water pump, and the fan is a stepless speed regulating fan. An external controller can control the stepless speed regulation of the water pump and the fan.

[0016] It can be seen from the above technical solution that compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This utility model provides a high-efficiency robot heat dissipation system with high heat dissipation efficiency. The circulating heat dissipation device uses liquid or phase-change cooling medium to dissipate heat. The radial holes on the top of the water-cooling plate serve as heat dissipation channels and are evenly distributed across the entire top surface of the water-cooling plate, resulting in a large heat dissipation surface and uniform heat dissipation.

[0018] 2. This utility model has excellent waterproof and dustproof performance. The entire robot shell has only one interface with the outside: the water cooling plate. The water cooling plate is fixedly installed at the bottom of the robot shell and the connection between them is sealed, which greatly improves the dust and water resistance level of the robot's interior and enhances the stability and reliability of the drive motor and controller.

[0019] 3. Easy maintenance. The circulating heat dissipation device, fan and external controller are all installed on the external mounting platform. There is no need to open the robot shell for maintenance and replacement of parts, which is convenient and quick.

[0020] 4. The manufacturing and use costs are low. The control logic of the entire cooling system is simple, the number of parts is small, the assembly is convenient, and the subsequent maintenance and replacement are easy and low-cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of a robot high-efficiency heat dissipation system described in this utility model

[0022] Figure 2 This is a cross-sectional view of a robot high-efficiency heat dissipation system according to the present invention;

[0023] Figure 3 This is a cross-sectional view of the water cooling plate of the present invention;

[0024] Figure 4 This is a schematic diagram of the distribution of radial holes described in the present invention.

[0025] In the figure: 1-robot housing, 11-robot legs, 12-external mounting platform, 2-circulating cooling device, 21-water cooling plate, 211-center hole, 212-radial hole, 213-eccentric vertical hole, 214-spiral hole, 215-heat sink fin, 216-thermal pad, 217-mounting base plate, 218-controller and motor, 22-water pump, 23-water tank, 231-temperature sensor, 3-fan, 4-external controller. DETAILED DESCRIPTION

[0026] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] like Figure 1-2 As shown, a robot efficient heat dissipation system includes a robot housing 1, a circulating heat dissipation device 2, a fan 3 and an external controller 4;

[0028] The circulating heat dissipation device 2 includes a water cooling plate 21, a water pump 22 and a water tank 23. The water cooling plate 21 is embedded in the bottom of the robot housing 1. The two ends of the water pump 22 are respectively connected to the water cooling plate 21 and the water tank 23. The fan 3 is provided on the side of the water cooling plate 21. The external controller 4 is electrically connected to the fan 3 and the water pump 22 respectively.

[0029] like Figure 3 As shown, the water cooling plate 21 includes a central hole 211 , a plurality of radial holes 212 , an eccentric vertical hole 213 , and a spiral hole 214 . The central hole 211 is connected to the radial holes 212 , and the radial holes 212 are connected to the spiral holes 214 through the eccentric vertical holes 213 .

[0030] like Figure 1 As shown, the upper part of the water cooling disk 21 is located inside the robot housing 1, and the lower part is located outside the robot housing 1. A sealing ring is set between the installation position of the water cooling disk 21 and the robot housing 1. The water cooling disk 21 and the internal heat exchange area are arranged inside the robot housing 1, and the water cooling disk 21 and the external heat exchange area are arranged outside the robot housing 1 and can exchange heat with the outside world. A sealing ring is set between the water cooling disk 21 and the robot housing 1 to improve the dust and water resistance level inside the robot and improve the stability and reliability of the controller and motor 218.

[0031] like Figure 3 and Figure 4 As shown, the central hole 211 is provided at the center of the water cooling plate 21 and is connected to the liquid outlet of the water pump 22. The radial holes 212 are arranged to diverge from the central hole 211, and the spiral holes 214 are connected to the water tank 23. The cooling medium circulates through the water cooling plate 21.

[0032] The center hole 211 has a circular cross-section, the radial holes 212 have a semicircular cross-section with a flat top surface, and the sum of the cross-sectional areas of the radial holes 212 is equal to the cross-sectional area of ​​the center hole 211. The eccentric vertical holes 213 have circular cross-sections, each with a different depth. The spiral holes 214 have circular cross-sections, and their cross-sectional areas are equal to that of the center hole 211. Therefore, to further enhance heat dissipation, the radial holes 211 can be configured as curved, irregularly shaped holes to increase the area through which the cooling medium flows.

[0033] like Figure 3 As shown, the outer side of the water cooling plate 21 is further provided with a heat dissipation fin 215 , the heat dissipation fin 215 is located outside the spiral hole 214 , and the fan 3 is directly facing the heat dissipation fin 215 .

[0034] like Figure 2 As shown, a thermal pad 216 is provided on the top of the water cooling plate 21 , a mounting substrate 217 is provided on the thermal pad 216 , and a controller and a motor 218 of the robot are provided on the mounting substrate 217 .

[0035] like Figure 1 As shown, the bottom surface of the robot housing 1 is provided with robot legs 11, and an external mounting platform 12 is provided between the robot legs 11. The circulating heat dissipation device 2, fan 3 and external controller 4 are provided on the external mounting platform 12. The circulating heat dissipation device 2, fan 3 and external controller 4 are provided outside the robot housing 1 for easy maintenance.

[0036] In addition, a temperature sensor 231 is installed on the outside of the water tank 23 , and the temperature sensor 231 is connected to the external controller 4 via a signal line.

[0037] In a preferred embodiment, the water pump 22 is a stepless speed regulating water pump, and the fan 3 is a stepless speed regulating fan.

[0038] The working principle of the robot efficient heat dissipation system described in this utility model is as follows:

[0039] S1: The cooling system is turned on as the robot is running. The cooling medium in the water tank 23 is pumped into the central hole 211 by the water pump 21. After reaching the top of the central hole 211, the cooling medium is divided into the radial holes 212. In the radial holes 212, the cooling medium exchanges heat with the thermal pad 216.

[0040] S2, after heat exchange, the cooling medium enters the spiral hole 214 from the eccentric vertical hole 213. At this time, the external heat dissipation fins 215 and the fan 3 cooperate to remove the heat of the cooling medium;

[0041] S3: The cooling medium passes through the spiral hole 214 and enters the water tank 23. The temperature sensor 231 on the water tank 23 detects the water temperature and feeds this information back to the external controller 4, which then adjusts the speed of the fan 3 or the water pump 22. If the cooling medium temperature is too high, the external controller 4 increases the speed of the fan 3 to increase the air volume and quickly remove the heat from the heat sink fins 215. If the cooling medium temperature is still too high, the external controller 4 increases the speed of the water pump 22 to increase the flow rate. This increase in flow rate also increases the flow rate, thereby increasing the heat dissipation.

[0042] The cooling medium can be purified water, deionized water, or distilled water for liquid cooling, or a phase-change refrigerant such as R134a or R1234yf for phase-change cooling. In this embodiment, a phase-change refrigerant with higher heat dissipation efficiency is used. The liquid refrigerant enters radial holes 211, absorbs heat, and then evaporates into a gaseous state, removing heat from mounting base plate 217. After entering spiral holes 214, the gaseous refrigerant liquefies due to cooling by external heat dissipation fins 215 and fan 3, ultimately entering water tank 23.

[0043] In summary, the utility model has the advantages of high heat dissipation efficiency, good dust and water resistance, easy maintenance and low cost, has good economic benefits, and is worthy of large-scale promotion.

[0044] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements can be made without departing from the principles of the present invention. These improvements should also be regarded as within the scope of protection of the present invention.

Claims

1. A robot efficient heat dissipation system, characterized in that: It includes a robot housing (1), a circulating heat dissipation device (2), a fan (3) and an external controller (4); The circulating heat dissipation device (2) includes a water cooling plate (21), a water pump (22) and a water tank (23), wherein the water cooling plate (21) is embedded in the bottom of the robot housing (1), and the two ends of the water pump (22) are respectively connected to the water cooling plate (21) and the water tank (23), the fan (3) is arranged on the side of the water cooling plate (21), and the external controller (4) is respectively electrically connected to the fan (3) and the water pump (22); The water cooling plate (21) comprises a central hole (211), a plurality of radial holes (212), an eccentric vertical hole (213), and a spiral hole (214); the central hole (211) is connected to the radial hole (212); and the radial hole (212) is connected to the spiral hole (214) via the eccentric vertical hole (213).

2. A robot efficient heat dissipation system according to claim 1, characterized in that: The upper portion of the water cooling disk (21) is located inside the robot housing (1), and the lower portion is located outside the robot housing (1). A sealing ring is provided at the installation position of the water cooling disk (21) and the robot housing (1). The central hole (211) is provided at the center of the water cooling disk (21). The central hole (211) is connected to the liquid outlet of the water pump (22). The radial holes (212) are arranged to diverge from the central hole (211). The spiral hole (214) is connected to the water tank (23).

3. The robot efficient heat dissipation system according to claim 2, characterized in that: The cross section of the central hole (211) is circular, the cross section of the radial hole (212) is semicircular and the top surface is flat, and the sum of the cross-sectional areas of the radial holes (212) is equal to the cross-sectional area of ​​the central hole (211); the cross section of the eccentric vertical hole (213) is circular, and the depth of each eccentric vertical hole (213) is different; the cross section of the spiral hole (214) is circular, and the cross-sectional area of ​​the spiral hole (214) is equal to that of the central hole (211).

4. The robot efficient heat dissipation system according to claim 3, characterized in that: The outer side of the water cooling plate (21) is further provided with a heat dissipation fin (215), the heat dissipation fin (215) is located outside the spiral hole (214), and the fan (3) is directly opposite to the heat dissipation fin (215).

5. The robot efficient heat dissipation system according to claim 1, characterized in that: A thermal pad (216) is provided on the top of the water cooling plate (21), a mounting substrate (217) is provided on the thermal pad (216), and a controller and a motor (218) of the robot are provided on the mounting substrate (217).

6. The robot efficient heat dissipation system according to claim 1, characterized in that: Robot legs (11) are provided on the bottom surface of the robot housing (1), an external mounting platform (12) is provided between the robot legs (11), and the circulating heat dissipation device (2), the fan (3) and the external controller (4) are provided on the external mounting platform (12).

7. The robot efficient heat dissipation system according to claim 1, characterized in that: A temperature sensor (231) is installed on the outside of the water tank (23), and the temperature sensor (231) is connected to an external controller (4) via a signal line.

8. The robot efficient heat dissipation system according to claim 1, characterized in that: The water pump (22) is a stepless speed-regulating water pump, and the fan (3) is a stepless speed-regulating fan.

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