High-efficiency heat dissipation type aluminum alloy motor shell and heat dissipation method thereof

Abstract

The application discloses a high-efficiency heat dissipation type aluminum alloy motor shell and a heat dissipation method thereof, and relates to the technical field of motor cooling. The high-efficiency heat dissipation type aluminum alloy motor shell comprises a cooling unit, a regulation and control unit and a displacement unit. The cooling unit comprises a sheath with a cavity and a first partition plate arranged in the cavity. The first partition plate divides the cavity into a cooling cavity and a regulation and control cavity. The cooling cavity is provided with a cooling medium. The regulation and control unit comprises a plurality of hollow regulation and control balls arranged in the cooling cavity, liquid inlet and outlet assemblies communicated with the regulation and control balls, temperature measuring elements corresponding to the regulation and control balls, a hollow transfer ball arranged in the regulation and control cavity and a transfer assembly communicated with the transfer ball. The liquid inlet and outlet assemblies are used for controlling the cooling medium to enter and exit the regulation and control balls. The temperature measuring elements are used for monitoring the temperature on the circumferential side of the regulation and control balls. The transfer assembly is used for controlling the cooling medium to enter and exit the transfer ball. The displacement unit is used for aligning the transfer ball with different regulation and control balls. The motor shell has the ability of heat redistribution.

Description

Technical Field

[0001] This invention relates to the field of motor cooling technology, specifically to a high-efficiency heat-dissipating aluminum alloy motor housing and its heat dissipation method. Background Technology

[0002] The heat source distribution inside the motor has significant non-uniform characteristics, especially concentrated in areas with high current density and high resistance loss, such as the stator winding ends and slot conductors. This non-uniform heating will form obvious temperature gradients in the axial and circumferential directions of the motor housing, generating local hot spots. If the heat from these hot spots cannot be quickly transferred and evenly dissipated, it will affect the reliability, efficiency and service life of the motor.

[0003] Currently, conventional motor housing heat dissipation solutions generally adopt passive thermal management strategies, which mainly include setting heat dissipation fins on the outside of the housing for natural or forced air cooling, or processing spiral or S-shaped liquid cooling channels inside the housing wall for water cooling.

[0004] However, these technical solutions share a common problem: their heat transfer paths are essentially "one-way, passive" transport from the heat source area to the cooling medium, lacking the ability to spatially redistribute heat. The flow direction of the cooling medium inside the casing is fixed and preset, and cannot be adaptively adjusted according to the localized, dynamic high-temperature areas generated during actual motor operation.

[0005] This results in insufficient heat exchange driving force when the cooling medium flows through the low-temperature region, causing a waste of cooling capacity; while when it flows through the high-temperature hot spot region, the medium has been preheated upstream, reducing the heat exchange temperature difference and making it impossible to cool the hot spot in a concentrated and efficient manner. Summary of the Invention

[0006] The purpose of this invention is to provide a high-efficiency heat-dissipating aluminum alloy motor housing and its heat dissipation method, so as to solve the problems mentioned in the background art.

[0007] In a first aspect, the present invention provides the following technical solution: a high-efficiency heat-dissipating aluminum alloy motor housing, comprising:

[0008] A cooling unit includes a shell with a cavity and a first partition plate disposed within the cavity. The first partition plate divides the cavity into a cooling chamber and a regulating chamber. A cooling medium is disposed within the cooling chamber.

[0009] The control unit includes multiple hollow control spheres disposed in the cooling cavity, a liquid inlet assembly and a liquid outlet assembly connected to the control spheres, temperature measuring elements corresponding to each control sphere, hollow transfer spheres disposed in the control cavity, and transfer spheres connected to the transfer spheres. The liquid inlet assembly controls the flow of cooling medium into and out of the control spheres, the liquid outlet assembly controls the flow of cooling medium into and out of the control spheres, the temperature measuring elements monitor the temperature of the cooling medium around the corresponding control sphere, each transfer sphere has two chambers, and the transfer sphere controls the flow of cooling medium into and out of the transfer sphere.

[0010] A displacement unit is connected to the transfer ball, such that the transfer ball is aligned with different control balls.

[0011] In conjunction with the first aspect, in one possible implementation, the displacement element comprises:

[0012] Two axis shifting plates are disposed on both sides of the transfer sphere along the axial direction of the casing;

[0013] A shaft shifting assembly is driven to the shaft shifting plate, and the shaft shifting assembly is used to drive the two shaft shifting plates to move synchronously along the axial direction of the casing;

[0014] Two peripheral plates are disposed between the two axial plates, and the two peripheral plates and the two axial plates enclose a transfer space for placing the transfer ball; and

[0015] A circumferential moving assembly is connected to the circumferential moving plate, and the circumferential moving assembly is used to drive the two circumferential moving plates to move synchronously along the circumference of the shell.

[0016] In conjunction with the first aspect, in one possible implementation, a cooling plate is provided on the side of the two peripheral plates that are close to each other.

[0017] In conjunction with the first aspect, in one possible implementation, the control unit further includes a positioning ring rotatably connected to the outer wall of the transfer ball and a rotating assembly drively connected to the control ball. The positioning ring is slidably connected to the shaft shift plate, and the positioning ring moves circumferentially along the casing. The outer wall of the positioning ring is provided with an adsorption member for adsorbing and fixing the positioning ring and the shaft shift plate. The rotating assembly is used to drive the transfer ball to rotate about the axial direction of the positioning ring.

[0018] In conjunction with the first aspect, in one possible implementation, the cooling unit further includes a second partition plate disposed within the control cavity, the second partition plate dividing the control cavity into a compensation cavity and a transfer cavity, the compensation cavity also being provided with a cooling medium, and the transfer ball and the displacement unit both being disposed within the transfer cavity;

[0019] The control unit further includes multiple compensation components disposed on the second partition plate and liquid receiving components disposed on the transfer ball. The compensation components and the liquid discharging components are aligned one by one. The compensation components are used to control the cooling medium to enter and exit the compensation chamber, and the liquid receiving components are used to control the cooling medium to enter and exit the transfer ball.

[0020] In conjunction with the first aspect, in one possible implementation, the compensation cavity is provided with uniformly distributed units;

[0021] The uniform distribution unit includes a plurality of uniform distribution rings arranged along the axial direction of the casing and a uniform distribution assembly connected to the uniform distribution rings. The uniform distribution rings are rotatably connected to the second partition plate, and the uniform distribution assembly is used to drive the uniform distribution rings to rotate about the axial direction of the casing.

[0022] In conjunction with the first aspect, in one possible implementation, the uniform distribution unit further includes a plurality of uniform distribution rods hinged to the inner wall of the compensation cavity and arranged as a group. The uniform distribution rods are arranged in multiple groups along the axial direction of the shell. The outer wall of the uniform distribution ring is provided with a reciprocating bending linkage groove, and the uniform distribution rods are slidably adapted to the linkage groove.

[0023] In conjunction with the first aspect, in one possible implementation, the control unit further includes a flip plate disposed within the transfer ball and a flip assembly connected to the flip plate in a transmission manner. Two chambers are formed on both sides of the flip plate, and the flip assembly is used to drive the flip plate to rotate about the radial direction of the positioning ring as the rotation axis.

[0024] In conjunction with the first aspect, in one possible implementation, the control unit further includes a mounting plate disposed in the cooling cavity, the mounting plate having a groove for mounting the control ball.

[0025] Compared with the prior art, the beneficial effects of this invention are: the high-temperature medium in the hot spot area is replaced with a low-temperature medium, realizing the rapid removal of local heat. Driven by the displacement unit, the transfer ball sequentially docks with control balls at different positions, thereby flexibly distributing the cooling medium among multiple areas of the cooling chamber, transferring the cold energy from the low-temperature area to the high-temperature area, and completing the active spatial redistribution of heat.

[0026] Secondly, the present invention also provides a heat dissipation method for a high-efficiency heat-dissipating aluminum alloy motor housing, comprising the following steps:

[0027] S10. Monitor the temperature of the cooling medium around the hollow control ball in real time through each temperature measuring element, and send the temperature data to the controller;

[0028] S20. The controller compares the received temperature data with the preset temperature threshold. When the temperature around a certain control ball exceeds the threshold, it determines that the area where the control ball is located is a local overheated area. The liquid inlet assembly is activated to draw the cooling medium of the overheated area from the cooling chamber into the corresponding control ball.

[0029] S30. Start the displacement unit, drive the transfer ball to move to the position aligned with the control ball corresponding to the local overheated area, and establish communication between the transfer ball and the corresponding control ball.

[0030] S40. The cooling medium inside the control ball in S20 is extracted through the liquid outlet assembly and introduced into one of the chambers of the transfer ball;

[0031] S50. The controller compares the received temperature data with the preset temperature threshold. When the temperature around a certain control ball is lower than the threshold, it determines that the area where the control ball is located is a local supercooled area. The liquid inlet assembly is activated to draw the cooling medium of the supercooled area from the cooling chamber into the corresponding control ball.

[0032] S60. Start the displacement unit, drive the transfer ball to move to the position aligned with the control ball corresponding to the local supercooled area, and establish communication between the transfer ball and the corresponding control ball.

[0033] S70. The cooling medium inside the control ball in S50 is extracted through the liquid outlet assembly and introduced into another chamber of the transfer ball;

[0034] S80. The overheated cooling medium inside the transfer ball is injected into the control ball in S50 through the transfer assembly, and the overheated cooling medium is injected into the cooling chamber through the liquid inlet assembly of the control ball.

[0035] S90. Start the displacement unit, drive the transfer ball to move to the position aligned with the control ball in S20, inject the subcooled cooling medium in the transfer ball into the control ball in S20 through the transfer assembly, and inject the subcooled cooling medium into the cooling chamber through the liquid inlet assembly of the control ball.

[0036] S100, repeat S10-S90 until the temperature of all temperature measuring elements is within the threshold range. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the structure of the high-efficiency heat dissipation aluminum alloy motor housing of the present invention;

[0038] Figure 2 This is a partial cross-sectional view illustrating the heat regulation method of the present invention;

[0039] Figure 3 This is a partial schematic diagram illustrating the peripheral plate of the present invention;

[0040] Figure 4 for Figure 2 A magnified view of part A in the diagram.

[0041] In the diagram: 10, Cooling unit; 101, Enclosure; 1011, Cooling cavity; 1012, Transfer cavity; 1013, Compensation cavity; 102, First partition plate; 103, Second partition plate;

[0042] 20. Control unit; 201. Control ball; 202. Liquid inlet assembly; 203. Liquid outlet assembly; 204. Transfer ball; 205. Transfer assembly; 206. Positioning ring; 2061. Sealing cavity; 207. Rotation assembly; 2071. Blade; 208. Compensation assembly; 209. Liquid receiving assembly; 210. Flip plate; 211. Mounting plate; 2111. Groove;

[0043] 30. Displacement unit; 301. Shaft shift plate; 302. Circumferential shift plate; 3021. Cooling plate;

[0044] 40. Uniformly distributed unit; 401. Uniformly distributed ring; 4011. Linkage groove; 402. Uniformly distributed rod. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] like Figures 1-4 As shown, the present invention provides a technical solution: a high-efficiency heat dissipation aluminum alloy motor housing, including a cooling unit 10, a control unit 20, and a displacement unit 30; the cooling unit 10 includes a shell 101 with a cavity and a first partition plate 102 disposed in the cavity, the first partition plate 102 dividing the cavity into a cooling cavity 1011 and a control cavity, the cooling cavity 1011 containing a cooling medium; the control unit 20 includes a plurality of hollow control balls 201 disposed in the cooling cavity 1011, a liquid inlet assembly 202 and a liquid outlet assembly 203 connected to the control balls 201, each corresponding to a control ball 201. The control ball 201 includes a temperature measuring element, a hollow transfer ball 204 located in the control cavity, and a transfer assembly 205 connected to the transfer ball 204. The liquid inlet assembly 202 is used to control the entry and exit of the cooling medium in the control ball 201, and the liquid outlet assembly 203 is used to control the entry and exit of the cooling medium in the control ball 201. The temperature measuring element is used to monitor the temperature of the cooling medium around the corresponding control ball 201. The transfer ball 204 has two chambers, and the transfer assembly 205 is used to control the entry and exit of the cooling medium in the transfer ball 204. The displacement unit 30 is connected to the transfer ball 204 so that the transfer ball 204 is aligned with different control balls 201.

[0047] It should be noted that the inlet assembly 202, outlet assembly 203, and transfer assembly 205 involved in this application are all common fluid control elements in the art. Those skilled in the art will understand that any conventional component (such as various valves, pump bodies, pipe fittings, and combinations thereof) capable of achieving the following "controlling liquid flow / stop" function can be applied to this application, and the specific structure will not be described in detail.

[0048] The high-efficiency heat dissipation aluminum alloy motor housing provided in this application has a cooling chamber 1011 filled with cooling medium when the motor is running. Multiple control balls 201 are distributed in the cooling chamber 1011, and each control ball 201 corresponds to a temperature measuring element. The temperature measuring element monitors the temperature of the surrounding cooling medium in real time and feeds it back to the controller.

[0049] When the motor's internal uneven heating causes a temperature rise in a certain area, forming a local hot spot, the controller determines the control ball 201 corresponding to the hot spot area (the area with the highest cooling medium temperature) based on the data from the temperature measuring device. At the same time, it determines the control ball 201 corresponding to the cold spot area (the area with the lowest cooling medium temperature) based on the data from the temperature measuring device.

[0050] At this point, the displacement unit 30 activates, driving the transfer ball 204 to align with the control ball 201 corresponding to the hot spot area. After alignment, the high-temperature cooling medium (the part with the highest cooling medium temperature) surrounding the hot spot area is first drawn into the control ball 201 through the liquid inlet assembly 202, and then extracted through the liquid outlet assembly 203 and introduced into one of the chambers of the transfer ball 204. Next, the transfer ball 204 moves to the cold spot area via the displacement unit 30, and introduces the low-temperature cooling medium (the part with the lowest cooling medium temperature) into another chamber of the transfer ball 204 through the liquid inlet assembly 202 and the liquid outlet assembly 203. Then, the transfer ball 204 injects the high-temperature cooling medium into the cold spot area, and finally, the transfer ball 204 returns to the hot spot area to inject the low-temperature cooling medium into the hot spot area. (The above process involves first extracting the high-temperature cooling medium; however, it is also possible to first extract the low-temperature cooling medium, and this application does not impose specific limitations.)

[0051] Compared to existing technologies, this system, through the coordinated operation of the temperature sensing element, the control ball 201, and the movable transfer ball 204, can actively identify and locate hot and cold areas generated during motor operation. It transfers the cooling medium from the low-temperature area to the high-temperature area and vice versa, achieving a spatial rebalancing of heat within the motor casing. This active heat redistribution mechanism effectively avoids the drawbacks of traditional solutions, such as "waste of cooling capacity in low-temperature areas and insufficient temperature difference in high-temperature areas," ensuring full utilization of the cooling capacity of each portion of the cooling medium. This significantly improves overall heat dissipation efficiency under the same pump power or airflow conditions, achieving energy saving and consumption reduction. Furthermore, since the transfer ball 204 can connect to multiple control balls 201 one by one, the entire system can complete large-scale heat scheduling with extremely low additional energy consumption, further improving the reliability and service life of the motor under non-uniform heating conditions.

[0052] In some embodiments, see Figure 2 and Figure 3 The displacement unit 30 includes two axial displacement plates 301, an axial displacement assembly, two circumferential displacement plates 302, and a circumferential displacement assembly. The two axial displacement plates 301 are disposed on both sides of the transfer ball 204 along the axial direction of the casing 101. The axial displacement assembly is driven to the axial displacement plates 301 and is used to drive the two axial displacement plates 301 to move synchronously along the axial direction of the casing 101. The two circumferential displacement plates 302 are disposed between the two axial displacement plates 301, and the two circumferential displacement plates 302 and the two axial displacement plates 301 enclose a transfer space for placing the transfer ball 204. The circumferential displacement assembly is driven to the circumferential displacement plates 302 and is used to drive the two circumferential displacement plates 302 to move synchronously along the circumferential direction of the casing 101.

[0053] It should be noted that the two axial shift plates 301 are respectively designated as the first axial hydraulic chamber and the second axial hydraulic chamber on opposite sides. Both the first and second axial hydraulic chambers are connected to an external cooling medium circulation pump station through independent hydraulic pipelines, allowing the driving medium to be directly drawn from the cooling medium itself. When it is necessary to drive the axial shift plate 301 to move axially, the axial shift assembly controls the pump station to inject cooling medium into the first axial hydraulic chamber and simultaneously extract cooling medium from the second axial hydraulic chamber. The pressure on the injection side increases and the pressure on the extraction side decreases, creating a pressure difference that pushes the axial shift plate 301 to move towards the low-pressure side. The moving principle of the two peripheral shift plates 302 is the same as that of the two axial shift plates 301, and the peripheral shift assembly will not be described in detail in this application.

[0054] When it is necessary to move the transfer ball 204 to the position of the target control ball 201, the axial offset and circumferential offset of the target control ball 201 relative to the current position of the transfer ball 204 are first calculated.

[0055] For axial movement, the axial displacement assembly extracts cooling medium and injects it into the first axial hydraulic chamber, while simultaneously extracting cooling medium from the second axial hydraulic chamber, generating an axial pressure difference that drives the two axial displacement plates 301 to move synchronously along the axial direction; if reverse movement is required, cooling medium is injected into the second axial hydraulic chamber and extracted from the first axial hydraulic chamber.

[0056] The two axial shift plates 301 move smoothly under the pressure of the cooling medium, driving the transfer ball 204 to the correct axial coordinate. Then, they move circumferentially, which is the same as the principle of axial movement and will not be described in detail here. This generates a circumferential pressure difference, which pushes the two circumferential shift plates 302 to slide synchronously. The transfer ball 204 then moves circumferentially along the casing 101 until it is aligned with the target control ball 201.

[0057] During the movement, the flow rate of the injected and drawn cooling medium is precisely controlled by a proportional valve, and closed-loop regulation is achieved in conjunction with a position sensor to ensure displacement accuracy. This is existing technology and will not be described in detail in this application.

[0058] After completing one docking, if it is necessary to replace it with another control ball 201, the offset is recalculated, and the shaft moving component and the peripheral moving component are driven to move sequentially or simultaneously through the combined action of injecting and sucking the cooling medium, so that the transfer ball 204 can quickly reach the new target position.

[0059] The movement of the axial shifting plate 301 and the circumferential shifting plate 302 are controlled by the axial shifting assembly and the circumferential shifting assembly, respectively, enabling the transfer ball 204 to achieve independent and precise two-dimensional positioning in both the axial and circumferential directions of the casing 101. This allows it to quickly reach the position of any control ball 201 within the cooling chamber 1011. Both the axial shifting assembly and the circumferential shifting assembly adopt a pure hydraulic drive method of "injecting cooling medium on one side and removing cooling medium on the other side." This eliminates the need for an additional hydraulic oil system, avoiding the risk of oil leakage contaminating the cooling medium. It also eliminates the need for an oil storage tank and a separate hydraulic pump, resulting in a more compact structure and lower cost.

[0060] In some embodiments, see Figure 3 A cooling plate 3021 is provided on one side of the two peripheral plates 302 that are close to each other.

[0061] During the medium exchange process, one chamber of the transfer ball 204 receives a high-temperature cooling medium from the hot spot region. This high-temperature medium causes the temperature of the transfer ball 204 itself to rise, thereby reducing the cooling quality of the low-temperature medium in its other chamber.

[0062] At this time, the cooling plate 3021 starts working: Optionally, the cooling plate 3021 is a semiconductor cooling chip. After being powered on, it generates a cooling effect on the side facing the transfer ball 204, continuously absorbing the heat from the outer wall of the transfer ball 204 and conducting the heat to the side of the cooling plate 3021 facing away from the transfer ball 204 (i.e., the side facing the peripheral plate 302). Then, the heat is dissipated through heat exchange with the peripheral plate 302 or the surrounding environment. Optionally, the cooling plate 3021 has a structure with a built-in coolant channel. The external coolant circulates through the internal channel of the cooling plate 3021 and carries away the heat from the outer wall of the transfer ball 204 through heat exchange.

[0063] The cooling plate 3021 effectively suppresses the cross-influence of heat generated when the transfer ball 204 receives high-temperature medium and transports low-temperature medium, preventing the low-temperature medium from being preheated by the high-temperature wall surface of the transfer ball 204 before being injected into the hot spot area. This ensures that the hot spot area receives a truly low-temperature cooling medium, enhancing the cooling intensity of the local hot spot. At the same time, the cooling plate 3021 pre-cools the high-temperature medium temporarily stored in the transfer ball 204, making it even cooler when it is finally discharged back into the cooling chamber 1011.

[0064] From an energy-saving perspective, the cooling plate 3021 only needs to consume a small amount of electrical energy or utilize the existing coolant circulation to achieve the above effect. This avoids the need to repeatedly extract more low-temperature medium from the compensation chamber 1013 to compensate for the loss of cold energy due to the temperature rise of the transfer ball 204 itself. It significantly reduces the overall replacement frequency of the cooling medium and the pumping power consumption, fully embodying the energy-saving design concept that "every bit of cold energy is used efficiently".

[0065] In some embodiments, see Figure 2 and Figure 4 The control unit 20 also includes a positioning ring 206 rotatably connected to the outer wall of the transfer ball 204 and a rotating component 207 drively connected to the control ball 201. The positioning ring 206 is slidably connected to the shaft shift plate 301. The positioning ring 206 moves circumferentially along the shell 101. The outer wall of the positioning ring 206 is provided with an adsorption member, which is used to adsorb and fix the positioning ring 206 and the shaft shift plate 301. The rotating component 207 is used to drive the transfer ball 204 to rotate about the axial direction of the positioning ring 206.

[0066] It should be noted that an annular sealing cavity 2061 is provided between the positioning ring 206 and the transfer ball 204. The sealing cavity 2061 is formed by the inner wall of the positioning ring 206 and the outer wall of the transfer ball 204.

[0067] A blade 2071 or a protrusion is fixedly installed on the outer wall of the transfer ball 204, and the blade 2071 (protrusion) is positioned inside the sealing cavity 2061. The sealing cavity 2061 is divided into a first driving cavity and a second driving cavity by the blade 2071 (protrusion). Both the first driving cavity and the second driving cavity are connected to the cooling medium circulation pump station through independent hydraulic pipelines, and proportional valves are installed in the pipelines. The blade 2071 (protrusion), the pipelines, and the proportional valves constitute the rotating assembly 207.

[0068] When the transfer ball 204 needs to be driven to rotate clockwise, cooling medium is injected into the first drive chamber and simultaneously extracted from the second drive chamber; the pressure on the injection side increases and the pressure on the extraction side decreases, creating a pressure difference that drives the blades 2071 to rotate the transfer ball 204 clockwise. If counterclockwise rotation is required, cooling medium is injected into the second drive chamber and extracted from the first drive chamber.

[0069] The rotating assembly 207 adopts the same pure hydraulic drive method as the shaft shift assembly, which is "injecting cooling medium on one side and removing cooling medium on the other side". The drive medium is directly taken from the cooling medium itself, eliminating the need for an additional hydraulic oil system, thus avoiding the risk of oil contamination. It also eliminates the need for a separate hydraulic pump station and oil tank, resulting in a more compact structure and lower cost.

[0070] From an energy-saving perspective, the rotating component 207 consumes only a small amount of pumping energy from the cooling medium, and it can achieve self-locking through the closed hydraulic chamber after rotation stops, without the need for continuous power supply, thus avoiding the standby power consumption that may be generated by using motors or pneumatic devices. In addition, since the driving force of the rotating component 207 comes from the pressure of the cooling medium itself, it shares the same power source with the shaft shift component and the peripheral shift component, simplifying the energy system of the whole machine and further reflecting the design concept of energy saving and consumption reduction.

[0071] In some embodiments, see Figure 2 The cooling unit 10 also includes a second partition plate 103 disposed in the control cavity. The second partition plate 103 divides the control cavity into a compensation cavity 1013 and a transfer cavity 1012. The compensation cavity 1013 is also provided with a cooling medium. The transfer ball 204 and the displacement unit 30 are both disposed in the transfer cavity 1012.

[0072] The control unit 20 also includes multiple compensation components 208 disposed on the second partition plate 103 and liquid receiving components 209 disposed on the transfer ball 204. The compensation components 208 and the liquid discharging components 203 are aligned one by one. The compensation components 208 are used to control the cooling medium entering and exiting the compensation chamber 1013, and the liquid receiving components 209 are used to control the cooling medium entering and exiting the transfer ball 204.

[0073] It should be noted that the compensation component 208 and the liquid receiving component 209 work on the same principle as the liquid inlet component 202, the liquid outlet component 203 and the transfer component 205, and will not be described again in this application.

[0074] When the overall temperature of the cooling medium in the cooling chamber 1011 rises due to long-term operation, or when a local hot spot cannot be effectively cooled after multiple heat exchanges, indicating that the overall cooling capacity of the medium in the cooling chamber 1011 is insufficient, the compensation mechanism is activated.

[0075] The low-temperature cooling medium in the compensation chamber 1013 is injected into one chamber of the transfer ball 204 through the liquid receiving component 209 and the compensation component 208. The original high-temperature cooling medium in the cooling chamber 1011 can be reversed and drawn into the control ball 201 by the liquid inlet component 202, and then injected into another chamber of the transfer ball 204 through the transfer component 205. Then, the low-temperature cooling medium is injected into the corresponding control ball 201 through the transfer component 205 and the liquid outlet component 203. Finally, the low-temperature cooling medium is injected into the cooling chamber 1011 through the liquid inlet component 202, while the high-temperature cooling medium is injected into the compensation chamber 1013 through the liquid receiving component 209 and the compensation component 208.

[0076] Since the compensation chamber 1013 is independent of the cooling chamber 1011 and the cooling medium inside it always maintains a relatively low temperature, it can serve as a backup cold source to provide additional cooling when the overall heat load of the cooling chamber 1011 increases.

[0077] The low-temperature cooling medium pre-stored in the compensation cavity 1013 can be precisely injected into the high-temperature area of ​​the cooling cavity 1011 when the overall temperature of the cooling cavity 1011 rises or the hot spot continues to overheat. At the same time, the high-temperature medium is replaced back into the compensation cavity 1013 for temporary storage or external cooling, thereby completing the online renewal of the cooling medium and the recovery of cooling capacity without interrupting the operation of the motor.

[0078] This design avoids the drawbacks of having to shut down the system for cooling or significantly increase the power of the circulating pump to force cooling due to the overall temperature rise of the cooling medium, thus significantly reducing system energy consumption.

[0079] From an energy-saving perspective, the introduction of the compensation chamber 1013 significantly improves the utilization rate of the cooling medium: when the overall temperature of the medium in the cooling chamber 1011 is still low, there is no need to call the compensation chamber 1013; only when the overall temperature of the medium rises to the point of affecting the heat exchange efficiency is the compensation component 208 activated to perform small-flow, precise supplementary cooling, thus avoiding the huge energy waste caused by the traditional solution of having to cool down all the cooling medium in order to cool local hot spots.

[0080] In some embodiments, see Figure 2The compensation cavity 1013 is provided with a uniform distribution unit 40; the uniform distribution unit 40 includes a plurality of uniform distribution rings 401 arranged along the axial direction of the shell 101 and a uniform distribution assembly connected to the uniform distribution rings 401. The uniform distribution rings 401 are rotatably connected to the second partition plate 103, and the uniform distribution assembly is used to drive the uniform distribution rings 401 to rotate about the axial direction of the shell 101.

[0081] It should be noted that the working principle of the uniform distribution component is the same as that of the rotating component 207, and will not be repeated in this application.

[0082] When the motor runs for a long time or the cooling medium in the compensation chamber 1013 experiences temperature stratification due to static storage (i.e., the upper layer of medium has a higher temperature and the lower layer of medium has a lower temperature), the controller activates the equalization unit 40 to equalize the temperature.

[0083] The uniform distribution component sequentially drives each uniform distribution ring 401 to rotate around the axial direction of the shell 101. During the rotation, the outer edge of the uniform distribution ring 401 and the cooling medium in the compensation cavity 1013 generate relative motion, causing the medium to generate circumferential flow and destroying the original temperature stratification.

[0084] Multiple uniformly distributed rings 401 are arranged along the axial direction of the cladding 101, rotating independently or synchronously, which disturbs the medium at different positions along the axial direction of the compensation cavity 1013, promoting mixing and heat exchange between the upper and lower layers of medium. Under the continuous rotation of the uniformly distributed rings 401, the upper layer medium with a higher temperature and the lower layer medium with a lower temperature in the compensation cavity 1013 mix with each other, eventually making the medium temperature in the entire compensation cavity 1013 tend to be uniform.

[0085] When active equalization is no longer needed in the compensation chamber 1013 (for example, when the temperature sensor shows that the temperature difference is lower than the set threshold), the equalization component stops operating, the equalization ring 401 stops rotating and remains stationary under the pressure of the cooling medium.

[0086] The start and stop of the uniform distribution unit 40 can be automatically controlled according to the temperature monitoring results, or it can be linked with the cooling action of the compensation component 208—a brief uniform distribution is performed before each compensation operation to ensure that the temperature of the low-temperature medium extracted from the compensation cavity 1013 is consistent.

[0087] In some embodiments, see Figure 2 The uniform distribution unit 40 also includes a plurality of uniform distribution rods 402 hinged to the inner wall of the compensation cavity 1013 and set as a group. The uniform distribution rods 402 are provided in multiple groups along the axial direction of the shell 101. The outer wall of the uniform distribution ring 401 is provided with a reciprocating bending linkage groove 4011. The uniform distribution rods 402 and the linkage groove 4011 are slidably adapted to each other.

[0088] The outer wall of the uniform distribution ring 401 is provided with a reciprocating bending linkage groove 4011. The linkage groove 4011 has a continuous wave-shaped or zigzag trajectory on the outer circumferential surface of the uniform distribution ring 401. The groove depth and groove width are adapted to the free end of the uniform distribution rod 402, that is, the free end of the uniform distribution rod 402 is embedded in the linkage groove 4011 and can slide along the trajectory of the groove.

[0089] Because the trajectory of the linkage groove 4011 is a reciprocating bend, the groove wall applies a lateral thrust to the free end of the uniformly distributed rod 402, forcing the uniformly distributed rod 402 to oscillate around its hinge point. Each uniformly distributed rod 402 oscillates reciprocally along the trajectory of the linkage groove 4011, and the oscillation frequency is related to the rotational speed of the uniformly distributed ring 401 and the number of bending cycles of the linkage groove 4011. Multiple sets of uniformly distributed rods 402 are arranged axially, and the uniformly distributed rods 402 in each set oscillate simultaneously at different circumferential angles. Since the linkage groove 4011 is continuous, the uniformly distributed rods 402 at different circumferential positions oscillate sequentially according to the phase difference, forming a complex turbulent flow field within the compensation cavity 1013.

[0090] These oscillations directly agitate the cooling medium within the compensation chamber 1013, and also generate localized eddies through the movement of the distribution rod 402, disrupting the original static stratification and dead zones of the medium. The direction of the distribution ring 401 can be changed periodically, causing the oscillation direction of the distribution rod 402 to reverse accordingly, further improving mixing uniformity. When uniform distribution is not required, the distribution ring 401 stops rotating, and the distribution rod 402 falls naturally or remains in a balanced position due to its own gravity or medium resistance, without interfering with the normal operation of the compensation chamber 1013.

[0091] In some embodiments, see Figure 2 The control unit 20 also includes a flip plate 210 disposed in the transfer ball 204 and a flip assembly connected to the flip plate 210. Two chambers are formed on both sides of the flip plate 210. The flip assembly is used to drive the flip plate 210 to rotate about the radial direction of the positioning ring 206 as the rotation axis.

[0092] It should be noted that the flipping component works on the same principle as the rotating component 207 and the uniformly distributed component, and will not be described again in this application.

[0093] Inside the control ball 201, the flip plate 210 divides the inner cavity of the control ball 201 into two independent chambers, referred to as the first chamber and the second chamber, respectively.

[0094] When the cooling medium is injected into the transfer ball 204, the first chamber first contains the injected material. After the first injection is completed, the flipping plate 210 is flipped by the flipping assembly, so that the second chamber can be injected. The injection and extraction working principles are the same, and will not be described in detail in this application.

[0095] In some embodiments, see Figure 2The control unit 20 also includes a mounting plate 211 disposed in the cooling cavity 1011, and the mounting plate 211 is provided with a groove 2111 for mounting the control ball 201.

[0096] Since the position of the control ball 201 is fixed, the displacement unit 30 drives the transfer ball 204 to perform repeated docking without recalibrating the position. Each movement can quickly reach the target according to the preset coordinate parameters, reducing the energy consumption required for position detection and repeated adjustments, significantly reducing the system's operating energy consumption, and fully embodying the design concept of energy saving and consumption reduction.

[0097] Based on the same inventive concept, this application also discloses a heat dissipation method for a high-efficiency heat-dissipating aluminum alloy motor housing, the steps of which are as follows:

[0098] S10. Monitor the temperature of the cooling medium around the hollow control ball 201 in real time through each temperature measuring element, and send the temperature data to the controller;

[0099] S20. The controller compares the received temperature data with the preset temperature threshold. When the temperature around a certain control ball 201 exceeds the threshold, it is determined that the area where the control ball 201 is located is a local overheated area. The liquid inlet assembly 202 is activated to draw the cooling medium of the overheated area from the cooling chamber 1011 into the corresponding control ball 201.

[0100] S30, start displacement unit 30, drive transfer ball 204 to move to the position aligned with control ball 201 corresponding to the local overheated area, and establish communication between transfer ball 204 and corresponding control ball 201;

[0101] S40, the cooling medium in the regulating ball 201 in S20 is extracted through the liquid outlet assembly 203 and introduced into one of the chambers of the transfer ball 204;

[0102] S50. The controller compares the received temperature data with the preset temperature threshold. When the temperature around a certain control ball 201 is lower than the threshold, it determines that the area where the control ball 201 is located is a local overcooled area. The liquid inlet assembly 202 is activated to draw the cooling medium of the overcooled area from the cooling chamber 1011 into the corresponding control ball 201.

[0103] S60. Start displacement unit 30, drive transfer ball 204 to move to a position aligned with control ball 201 corresponding to the local undercooled area, and establish communication between transfer ball 204 and corresponding control ball 201.

[0104] S70, the cooling medium in the regulating ball 201 in S50 is extracted through the liquid outlet assembly 203 and introduced into another chamber of the transfer ball 204;

[0105] S80, the overheated cooling medium in the transfer ball 204 is injected into the control ball 201 in S50 through the transfer component 205, and the overheated cooling medium is injected into the cooling chamber 1011 through the liquid inlet component 202 of the control ball 201.

[0106] S90, start displacement unit 30, drive transfer ball 204 to move to a position aligned with control ball 201 in S20, inject subcooled cooling medium in transfer ball 204 into control ball 201 in S20 through transfer component 205, and inject subcooled cooling medium into cooling chamber 1011 through liquid inlet component 202 of control ball 201.

[0107] S100, repeat S10-S90 until the temperature of all temperature measuring elements is within the threshold range.

[0108] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A high-efficiency heat-dissipating aluminum alloy motor housing, characterized in that, include: A cooling unit includes a shell with a cavity and a first partition plate disposed within the cavity. The first partition plate divides the cavity into a cooling chamber and a regulating chamber. A cooling medium is disposed within the cooling chamber. The control unit includes multiple hollow control balls disposed in the cooling cavity, a liquid inlet assembly and a liquid outlet assembly connected to the control balls, temperature measuring elements corresponding to each control ball, hollow transfer balls disposed in the control cavity, and transfer assemblies connected to the transfer balls. The liquid inlet assembly is used to control the entry and exit of the cooling medium in the control balls, the liquid outlet assembly is used to control the entry and exit of the cooling medium in the control balls, the temperature measuring elements are used to monitor the temperature of the cooling medium around the corresponding control ball, the transfer ball has two chambers, and the transfer assembly is used to control the entry and exit of the cooling medium in the transfer ball. as well as A displacement unit is connected to the transfer ball, such that the transfer ball is aligned with different control balls.

2. The high-efficiency heat-dissipating aluminum alloy motor housing according to claim 1, characterized in that, The displacement unit includes: Two axis shifting plates are disposed on both sides of the transfer sphere along the axial direction of the casing; A shaft shifting assembly is driven to the shaft shifting plate, and the shaft shifting assembly is used to drive the two shaft shifting plates to move synchronously along the axial direction of the casing; Two peripheral plates are disposed between the two axial plates, and the two peripheral plates and the two axial plates enclose a transfer space for placing the transfer ball; and A circumferential moving assembly is connected to the circumferential moving plate, and the circumferential moving assembly is used to drive the two circumferential moving plates to move synchronously along the circumference of the shell.

3. The high-efficiency heat-dissipating aluminum alloy motor housing according to claim 2, characterized in that, A cooling plate is provided on the side of the two peripheral plates that are close to each other.

4. The high-efficiency heat-dissipating aluminum alloy motor housing according to claim 3, characterized in that, The control unit further includes a positioning ring rotatably connected to the outer wall of the transfer ball and a rotating assembly drivenly connected to the control ball. The positioning ring is slidably connected to the shaft shift plate and moves circumferentially along the shell. The outer wall of the positioning ring is provided with an adsorption member for adsorbing and fixing the positioning ring and the shaft shift plate. The rotating assembly is used to drive the transfer ball to rotate about the axial direction of the positioning ring.

5. The high-efficiency heat-dissipating aluminum alloy motor housing according to claim 1, characterized in that, The cooling unit also includes a second partition plate disposed within the control cavity, the second partition plate dividing the control cavity into a compensation cavity and a transfer cavity, the compensation cavity also being provided with a cooling medium, and the transfer ball and the displacement unit both being disposed within the transfer cavity; The control unit further includes multiple compensation components disposed on the second partition plate and liquid receiving components disposed on the transfer ball. The compensation components and the liquid discharging components are aligned one by one. The compensation components are used to control the cooling medium to enter and exit the compensation chamber, and the liquid receiving components are used to control the cooling medium to enter and exit the transfer ball.

6. The high-efficiency heat-dissipating aluminum alloy motor housing according to claim 5, characterized in that, The compensation cavity is equipped with a uniform distribution unit; The uniform distribution unit includes a plurality of uniform distribution rings arranged along the axial direction of the casing and a uniform distribution assembly connected to the uniform distribution rings. The uniform distribution rings are rotatably connected to the second partition plate, and the uniform distribution assembly is used to drive the uniform distribution rings to rotate about the axial direction of the casing.

7. The high-efficiency heat-dissipating aluminum alloy motor housing according to claim 6, characterized in that, The uniform distribution unit also includes multiple uniform distribution rods hinged to the inner wall of the compensation cavity and arranged as a group. Multiple groups of uniform distribution rods are provided along the axial direction of the shell. The outer wall of the uniform distribution ring is provided with a reciprocating bending linkage groove. The uniform distribution rods are slidably adapted to the linkage groove.

8. The high-efficiency heat-dissipating aluminum alloy motor housing according to claim 4 or 5, characterized in that, The control unit also includes a flip plate disposed inside the transfer ball and a flip assembly connected to the flip plate. Two chambers are formed on both sides of the flip plate. The flip assembly is used to drive the flip plate to rotate about the radial direction of the positioning ring as the rotation axis.

9. The high-efficiency heat-dissipating aluminum alloy motor housing according to claim 1, characterized in that, The control unit also includes a mounting plate disposed in the cooling cavity, the mounting plate having a groove for mounting the control ball.

10. A heat dissipation method for a high-efficiency heat-dissipating aluminum alloy motor housing, characterized in that, The steps are as follows: S10. Monitor the temperature of the cooling medium around the hollow control ball in real time through each temperature measuring element, and send the temperature data to the controller; S20. The controller compares the received temperature data with the preset temperature threshold. When the temperature around a certain control ball exceeds the threshold, it determines that the area where the control ball is located is a local overheated area. The liquid inlet assembly is activated to draw the cooling medium of the overheated area from the cooling chamber into the corresponding control ball. S30. Start the displacement unit, drive the transfer ball to move to the position aligned with the control ball corresponding to the local overheated area, and establish communication between the transfer ball and the corresponding control ball. S40. The cooling medium inside the control ball in S20 is extracted through the liquid outlet assembly and introduced into one of the chambers of the transfer ball; S50. The controller compares the received temperature data with the preset temperature threshold. When the temperature around a certain control ball is lower than the threshold, it determines that the area where the control ball is located is a local supercooled area. The liquid inlet assembly is activated to draw the cooling medium of the supercooled area from the cooling chamber into the corresponding control ball. S60. Start the displacement unit, drive the transfer ball to move to the position aligned with the control ball corresponding to the local supercooled area, and establish communication between the transfer ball and the corresponding control ball. S70. The cooling medium inside the control ball in S50 is extracted through the liquid outlet assembly and introduced into another chamber of the transfer ball; S80. The overheated cooling medium inside the transfer ball is injected into the control ball in S50 through the transfer assembly, and the overheated cooling medium is injected into the cooling chamber through the liquid inlet assembly of the control ball. S90. Start the displacement unit, drive the transfer ball to move to the position aligned with the control ball in S20, inject the subcooled cooling medium in the transfer ball into the control ball in S20 through the transfer assembly, and inject the subcooled cooling medium into the cooling chamber through the liquid inlet assembly of the control ball. S100, repeat S10-S90 until the temperature of all temperature measuring elements is within the threshold range.

Images