Pump set device based on auxiliary heat dissipation of cooling flow channel

Abstract

The invention discloses a pump set device based on auxiliary heat dissipation of a cooling flow channel, and belongs to the technical field of pump bodies. A pump set device based on auxiliary heat dissipation of a cooling flow channel comprises a pump body and a first liquid cavity formed in the pump body, an impeller is arranged in the first liquid cavity, a stator part is installed on the outer side of the pump body, a bearing part is arranged on the inner circumference of the stator part, a rotating shaft connected with the impeller is installed on the inner circumference of the bearing part, and a cooling channel is formed in the rotating shaft. A pair of rotor parts located on the two sides of the stator part are arranged on the periphery of the rotating shaft, an end cover is installed at the end, away from the pump body, of the stator part, and a second liquid cavity is formed between the end cover and the stator part; by means of the design of the built-in cooling flow channel, circulating flow of cooling liquid in the pump set device is achieved, a large amount of heat generated by motor working and liquid pumping is effectively taken away, the working temperature of the pump body and internal components is reduced, and the working stability and performance of the pump set device under the high-load and long-time operation scene are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of pump bodies, and in particular relates to a pump assembly device based on cooling channels to assist heat dissipation. Background Art

[0002] During the operation of the pump unit, a large amount of heat will be generated due to the continuous work of the motor and the pump body. If this heat cannot be dissipated in time, the temperature of the pump unit will rise, thereby affecting its performance and life. Especially in some high-load and long-term operation scenarios, the heat dissipation problem of the pump unit is particularly prominent.

[0003] Traditional pump units usually use air cooling or natural heat dissipation, but this method has low heat dissipation efficiency and cannot meet the heat dissipation requirements under high-load operation. At the same time, some pump units also use liquid cooling methods such as oil cooling. Although the heat dissipation effect is better, it will increase the complexity of the equipment and maintenance costs;

[0004] In order to solve the above problems, the industry has begun to explore pump group devices based on cooling channels to assist heat dissipation. This device sets cooling channels inside the pump body and uses the flow of liquid to take away heat to achieve efficient heat dissipation. However, the existing pump group devices based on cooling channels to assist heat dissipation still have some shortcomings. For example, the design of the cooling channel is unreasonable, resulting in poor heat dissipation effect; or the cooling channel and other parts of the pump body are not well sealed, resulting in liquid leakage and other problems. Summary of the invention

[0005] The purpose of the present invention is to provide a pump assembly device based on cooling channels to assist heat dissipation in order to solve the problems existing in the prior art.

[0006] To achieve the above-mentioned purpose, the invention adopts the following technical scheme: a pump group device based on cooling channel auxiliary heat dissipation, including a pump body, and a first liquid cavity opened on the pump body, an impeller is arranged in the first liquid cavity, a stator component is installed on the outer side of the pump body, a bearing component is arranged on the inner periphery of the stator component, a rotating shaft connected to the impeller is installed on the inner periphery of the bearing component, a pair of rotor components located on both sides of the stator component are arranged on the outer periphery of the rotating shaft, an end cover is installed at the end of the stator component away from the pump body, a second liquid cavity is arranged between the end cover and the stator component; a flow gap is arranged between the pair of rotor components and the stator component, a pair of the flow gaps are respectively connected to the first liquid cavity and the second liquid cavity, a plurality of flow holes connected to the pair of the flow gaps are arranged on the bearing component, and cooling channels respectively connected to the first liquid cavity and the second liquid cavity are arranged in the axial direction in the rotating shaft.

[0007] By adopting the above technical solution, the pump unit device has a built-in cooling channel, which effectively improves the heat dissipation efficiency and reduces the temperature of the pump body and internal components, thereby extending the service life of the pump unit and improving its working stability. The design of the cooling channel allows the coolant to circulate and take away the heat generated by the operation of the motor and the liquid pumping.

[0008] Optionally, the inner wall of the first liquid cavity is provided with a liquid inlet hole connected to the pump body, the inner wall of the first liquid cavity is provided with circumferentially distributed flow channel grooves, and the side walls of the flow channel grooves are provided with liquid discharge holes connected to the pump body.

[0009] By adopting the above technical solution, the liquid inlet hole allows the liquid to be pumped to enter the first liquid cavity, the flow channel groove optimizes the flow path of the liquid in the cavity and improves the pumping efficiency, and the liquid discharge hole ensures that the pumped liquid can be discharged smoothly to avoid accumulation in the cavity causing pressure increase or temperature increase.

[0010] Optionally, the stator component includes a stator shell connected to the pump body, a stator cavity is opened in the stator shell, a stator core is installed in the stator cavity, a coil is provided on the stator core, a wire outlet hole is opened on the outer periphery of the stator shell, one end of the stator shell away from the pump body is connected to the end cover, the inner periphery of the stator shell is connected to the rotating shaft component, and a heat conducting component is provided on the stator shell.

[0011] By adopting the above technical solution, the stator is a key component in the pump unit, responsible for generating a magnetic field to drive the rotor to rotate. The stator shell protects the internal components, the stator cavity accommodates the stator core and the coil, and the coil generates a magnetic field when energized. The wire outlet hole allows the wires to be connected to an external power source to power the coil.

[0012] Optionally, the bearing component includes a bearing sleeve connected to the stator component, the bearing sleeve is provided with a circulation hole, a bearing liner is provided on the inner side of the bearing sleeve, a shaft sleeve is installed on the inner periphery of the bearing liner, a rotor ring is provided on the outer periphery of the shaft sleeve and is located on both sides of the bearing liner, a pair of rotor rings are respectively installed with thrust plate seats on one side away from the bearing liner, the thrust plate seat and the bearing sleeve are respectively installed on the outer periphery of the rotating shaft, and the shaft sleeve is connected to the outer periphery of the rotating shaft.

[0013] By adopting the above technical solution, the bearing component supports and fixes the rotating shaft to ensure that it remains stable during rotation. The bearing sleeve and bearing liner provide lubrication and reduce friction. The sleeve fits tightly with the rotating shaft to prevent liquid leakage. The rotor ring and thrust plate seat further enhance the stability of the rotating shaft.

[0014] Optionally, a plurality of the flow holes are opened on the inner circumference of the bearing sleeve, and the plurality of the flow holes are distributed in a circular array with the center of the bearing sleeve as a base point.

[0015] By adopting the above technical solution, the flow holes allow the coolant to flow inside the bearing component, taking away the heat generated by the rotation of the bearing, thereby maintaining the low temperature operation of the bearing and reducing wear and failure rate.

[0016] Optionally, a pair of the rotor components respectively include a rotor plate, a rotor cavity is opened in the rotor plate, a rotor core is installed in the rotor cavity, a permanent magnet is installed on the surface of the rotor core, and the inner periphery of the pair of rotor plates is connected to the rotating shaft.

[0017] By adopting the above technical solution, the rotor component is the power component in the pump assembly device. The permanent magnet rotates under the action of the magnetic field generated by the stator component, thereby driving the shaft and the impeller to rotate. The rotor plate and the rotor cavity provide support and protection for the permanent magnet and the rotor core.

[0018] Optionally, a pair of the rotor plates are respectively provided with a plurality of arc-shaped flow channels on one side away from the stator component, and the plurality of arc-shaped flow channels are distributed in a ring array with the center point of the rotor plate as a base point.

[0019] By adopting the above technical solution, the arc-shaped flow channel further optimizes the flow path of the coolant around the rotor component and improves the heat dissipation efficiency. At the same time, as the rotor plate rotates, the coolant in the arc-shaped flow channel is effectively thrown to the outer edge of the rotor plate by the centrifugal force. When the coolant is thrown to the outer edge of the rotor plate, it can flow into these flow gaps more smoothly. This flow process not only enhances the heat exchange between the coolant and the rotor component and the stator component, but also promotes the circulation of the coolant inside the pump assembly device, further improving the heat dissipation efficiency.

[0020] Optionally, a boss is provided on the inner side wall of the end cover, and the boss is conical. A flow channel gap is provided between the center point of the rotating shaft close to one end of the boss and the highest point of the boss, and the flow channel gap is 2cm-10cm.

[0021] By adopting the above technical solution, when the coolant flows through the boss, the flow velocity increases due to its gradually shrinking shape, but near the highest point of the boss, due to the existence of the flow channel gap, the coolant suddenly faces a wider flow space. This sudden change in flow velocity and the expansion of the flow space cause the coolant to generate eddies and turbulence in the flow channel gap, thereby increasing the local pressure in the area. It is precisely by utilizing this characteristic of increased local pressure that the coolant can be effectively pressed into the cooling channel to cool the rotating shaft.

[0022] Optionally, the cooling channel includes a pair of central channels arranged on the axis of the rotating shaft, and a Tesla channel connected to the pair of central channels; one end of one of the central channels is provided with a bell mouth, and the bell mouth is close to the end cover.

[0023] By adopting the above technical solution, the central flow channel and the Tesla channel constitute the main flow path of the coolant inside the shaft, ensuring that the coolant can efficiently take away the heat generated by the shaft and bearing parts. The bell-mouth design helps the coolant flow into the central flow channel more smoothly and reduces resistance.

[0024] Optionally, a control box is installed on the outer wall of the pump body.

[0025] By adopting the above technical solution, the control box usually contains electronic components such as a control circuit board and sensors, which are used to monitor the operating status of the pump unit and control it. It allows the user to adjust the operating parameters of the pump unit, such as speed, flow, etc., as needed, and provides fault alarm and protection functions.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The present invention realizes the circulation of coolant inside the pump unit through the built-in cooling channel design, effectively taking away a large amount of heat generated by the operation of the motor and the liquid pumping. This innovative design significantly reduces the operating temperature of the pump body and internal components, thereby extending the service life of the pump unit and improving its working stability and performance under high load and long-term operation scenarios.

[0028] 2. The design of the cooling channel fully considers the flow characteristics of the coolant inside the pump unit. Through reasonable layout and shape optimization, the flow efficiency and heat exchange capacity of the coolant are improved. In particular, the design of the arc channel not only further optimizes the flow path of the coolant around the rotor, but also makes full use of the centrifugal force generated by the rotation of the rotor, so that the coolant can flow more smoothly into the circulation gap, thereby enhancing the heat exchange effect between the coolant and the pump unit components.

[0029] 3. The boss design on the inner wall of the end cover and the setting of the flow channel gap cleverly utilize the principles of fluid dynamics to increase local pressure by generating eddies and turbulence, thereby effectively pressing the coolant into the cooling channel to cool the shaft. This design not only improves the utilization rate of the coolant, but also enhances the cooling effect, ensuring the low-temperature operation of key components such as the shaft and bearings.

[0030] 4. While maintaining efficient heat dissipation, the pump assembly device of the present invention also focuses on compactness of structure and convenience of maintenance. Through reasonable layout and component design, the overall stability and reliability of the pump assembly device are ensured, while reducing maintenance costs and difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the pump assembly device of the present invention;

[0032] Figure 2 It is a schematic diagram of the cross-sectional structure of the pump assembly device of the present invention;

[0033] Figure 3 This is a schematic diagram of the heat dissipation path of the present invention;

[0034] Figure 4 It is a schematic diagram of the cross-sectional structure of the stator component and the rotor component of the present invention;

[0035] Figure 5 It is a schematic diagram of the three-dimensional structure of the stator component of the present invention;

[0036] Figure 6 It is a schematic diagram of the cross-sectional structure of the rotating shaft of the present invention;

[0037] Figure 7 This is a schematic diagram of the front view structure of the rotor plate of the present invention;

[0038] Figure 8 It is a schematic diagram of the cross-sectional structure of the bearing component of the present invention;

[0039] Fig. 9 It is a schematic diagram of the cross-sectional structure of the bearing sleeve of the present invention;

[0040] Fig.10 This is a schematic diagram of the cross-sectional structure of a stator shell in Embodiment 2 of the present invention;

[0041] Fig.11 For the present invention Fig.10 Enlarged schematic diagram at point A in the middle.

[0042] In the figure: 1, pump body; 101, control box; 2, first liquid cavity; 201, liquid inlet hole; 202, flow channel groove; 203, liquid discharge hole; 3, impeller; 4, stator member; 41, stator shell; 411, outer peripheral plate; 412, inner peripheral plate; 413, first watertight thin plate; 42, stator cavity; 43, stator core; 44, coil; 45, outlet hole; 5, bearing member; 51, bearing sleeve; 52, bearing liner; 53, shaft sleeve; 54, rotor ring; 55, thrust plate seat; 6 , shaft; 7, rotor member; 71, rotor plate; 711, arc-shaped flow channel; 712, plate body; 713, second watertight thin plate; 72, rotor cavity; 73, rotor core; 74, permanent magnet; 8, end cover; 801, boss; 802, flow channel gap; 9, second liquid cavity; 10, flow gap; 11, flow hole; 12, cooling flow channel; 1201, central flow channel; 1202, Tesla channel; 1203, bell mouth; 13, heat conduction component; 1301, heat conduction block. DETAILED DESCRIPTION

[0043] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as "middle", "upper", "lower", "left", "right", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0045] like Figure 1 —9, the specific scheme of the embodiment is as follows: a pump assembly device based on cooling channel auxiliary heat dissipation, including a pump body 1, the pump body 1 is the main structure of the entire pump assembly device, used to accommodate and support other components, and at the same time provide a flow channel for the liquid, ensure the structural integrity and stability of the pump assembly device, and provide necessary space for the suction, compression and discharge of the liquid. The outer wall of the pump body 1 is installed with a control box 101, which is installed on the outer wall of the pump body 1 and is used to control the operating state of the pump assembly device, including the start, stop and speed adjustment of the motor, provide a convenient operation interface, realize precise control of the pump assembly device, and improve the automation level of the equipment;

[0046] The first liquid chamber 2 is provided on the pump body 1. The first liquid chamber 2 is the area where the liquid is sucked in and initially compressed. The first liquid chamber 2 is connected to the liquid inlet hole 201 and the liquid discharge hole 203, and provides a working space for the impeller 3. The liquid is thrown out by the rotation of the impeller 3 to achieve liquid transportation and initial heat dissipation. The inner wall of the first liquid chamber 2 is provided with a liquid inlet hole 201 connected to the pump body 1. The liquid inlet hole 201 is used to introduce the liquid into the first liquid chamber 2 to ensure that the liquid can smoothly enter the pump assembly device, providing heat dissipation and fluid circulation. Necessary liquid, the inner wall of the first liquid chamber 2 is provided with circumferentially distributed flow grooves 202, the flow grooves 202 are used to guide the flow and discharge of the liquid, through the design of the flow grooves 202, the flow path of the liquid is increased, the side wall of the flow groove 202 is provided with a drainage hole 203 connected to the pump body 1, the drainage hole 203 is used to discharge the liquid to the outside of the pump body 1, the first liquid chamber 2 is provided with an impeller 3, the impeller 3 throws out the liquid by rotation, realizes the liquid transportation and preliminary heat dissipation, and prepares for the subsequent cooling cycle.

[0047] A stator component 4 is installed on the outside of the pump body 1, and the stator component 4 is connected to the open end of the first liquid chamber 2. The stator component 4 is the core power component in the pump assembly device. It generates a rotating magnetic field through a stator winding composed of a coil 44 and a stator core 43, thereby driving the rotor component 7 to rotate, providing power for the entire pump assembly device. The stator component 4 includes a stator shell 41 connected to the pump body 1, and the stator shell includes an outer peripheral plate 411, an inner peripheral plate 412 and a first watertight thin plate 413 arranged at both ends. The inner peripheral plate 412 is connected to the rotating shaft 6, and the outer peripheral plate 412 is connected to the rotating shaft 6. The side walls at both ends of the peripheral plate 411 are connected to the pump body 1 and the end cover 8 respectively. The first watertight thin plate 413 can play a sealing role. The stator shell 41 is the main structural part of the stator component 4. It is connected to the pump body 1 and provides a space for installing and protecting components such as the stator core 43 and the coil 44. The design of the stator shell 41 ensures the stability and reliability of the stator component 4, while preventing interference and damage from the external environment. Through a reasonable sealing design, the stator shell 41 can also prevent liquid or gas from penetrating into the stator cavity 42, thereby ensuring the safe operation of the stator winding.

[0048] The stator shell 41 is provided with a stator cavity 42, which is a space formed by an outer peripheral plate 411, an inner peripheral plate 412 and a first watertight thin plate 413. The stator cavity 42 provides a closed and stable working environment for the stator winding, ensuring that the coil 44 can generate a uniform rotating magnetic field after being energized. At the same time, the stator cavity 42 can also accommodate monitoring equipment such as temperature sensors and pressure sensors to provide real-time feedback for the operating status of the pump assembly. The stator cavity 42 is provided with a stator core 43, which is installed in the stator cavity 42 and is an important component of the stator winding. It is formed by stacking a plurality of silicon steel sheets and is used to enhance the magnetic field generated by the coil 44. The design of the stator core 43 improves the strength and uniformity of the magnetic field, reduces magnetic resistance and iron loss, and at the same time, the stacked structure of the silicon steel sheets can also reduce eddy current loss and hysteresis loss, thereby improving the efficiency of the stator winding.

[0049] The stator core 43 is provided with a coil 44, which is wound around the stator core 43 and is a key component of the stator winding. When the coil 44 is energized, it will generate a rotating magnetic field around the stator core 43. The design of the coil 44 determines the performance of the stator winding. By reasonably selecting the number of turns of the coil 44 and the current size, the required rotating magnetic field strength and frequency can be generated. The side wall of the outer plate 411 is provided with a wire outlet hole 45. The design of the wire outlet hole 45 facilitates the connection and fixation of the lead wire of the coil 44, and also provides convenience for the electrical connection of the pump group device. By reasonably selecting the position and number of the wire outlet holes 45, the neat arrangement and easy maintenance of the lead wires of the coil 44 can be ensured.

[0050] The outer peripheral plate 411 is equipped with a temperature sensor and a pressure sensor, which provide real-time feedback for the operating status of the pump unit. When the temperature or pressure in the stator cavity 42 exceeds the set value, the sensor will send out an alarm signal so as to timely adjust the working status of the pump unit or take other protective measures. This helps to prevent the occurrence of overheating, overpressure and other faults, and improve the safety and reliability of the pump unit.

[0051] The inner circumference of the stator component 4 is provided with a bearing component 5, which is used to support and fix the rotating shaft 6, ensure the stable rotation of the rotating shaft 6, reduce friction and wear, and improve the service life of the pump unit. The bearing component 5 includes a bearing sleeve 51 connected to the stator component 4. The bearing sleeve 51 is the main structural part of the bearing component 5. It is connected to the inner circumferential plate 412 and provides an installation basis for components such as the bearing liner 52 and the shaft sleeve 53. By fixing and supporting other bearing components, the bearing sleeve 51 ensures the stability and coaxiality of the rotating shaft 6 during the rotation process and reduces the wear caused by vibration and shaking. The inner side of the bearing sleeve 51 is provided with a bearing liner 52. The bearing liner 52 is arranged on the inner side of the bearing sleeve 51 and is in direct contact with the shaft sleeve 53, which plays a role in reducing friction and wear. The bearing liner 52 is usually made of wear-resistant and corrosion-resistant materials to improve its service life and performance. Through close cooperation with the shaft sleeve 53, the bearing liner 52 ensures the smoothness and stability of the rotating shaft 6 during the rotation process;

[0052] The inner circumference of the bearing liner 52 is installed with a sleeve 53. The sleeve 53 is installed on the inner circumference of the bearing liner 52 and is directly connected to the rotating shaft 6, playing a supporting and guiding role. The design of the sleeve 53 can reduce the friction between the rotating shaft 6 and the bearing member 5, reduce energy consumption and wear, and at the same time, the sleeve 53 can also radially and axially position the rotating shaft 6 to ensure the accuracy and stability of its rotation. The outer circumference of the sleeve 53 is provided with rotor rings 54 located on both sides of the bearing liner 52. The rotor rings 54 are located on both sides of the bearing liner 52 and are connected to the outer circumference of the sleeve 53. They not only play a role in strengthening the structure of the bearing member 5, but also provide a basis for the installation of the thrust plate seat 55. The design of the rotor ring 54 can enhance the rigidity and stability of the bearing member 5 and improve its load-bearing capacity. At the same time, through cooperation with the thrust plate seat 55, the rotor ring 54 can also ensure the stability and positioning accuracy of the rotating shaft 6 in the axial direction;

[0053] A pair of the rotor rings 54 are respectively provided with thrust plate seats 55 on one side away from the bearing liner 52. The thrust plate seats 55 and the bearing sleeves 51 are respectively installed on the outer periphery of the rotating shaft 6. The thrust plate seats 55 are installed on the side of the rotor ring 54 away from the bearing liner 52 and are connected to the outer periphery of the rotating shaft 6. They are mainly used to bear the thrust of the rotating shaft 6 in the axial direction. The design of the thrust plate seats 55 can ensure that the rotating shaft 6 will not produce excessive axial displacement due to the axial thrust during rotation, thereby protecting the bearing member 5, the rotating shaft 6 and other components from damage. At the same time, the thrust plate seats 55 can also form a closed space together with the bearing liner 52. The various components of the bearing member 5 play their own unique roles and effects in the pump group device, and jointly ensure the stable rotation of the rotating shaft 6 and the efficient and stable operation of the pump group.

[0054] The inner periphery of the bearing member 5 is provided with a rotating shaft 6 connected to the impeller 3. The rotating shaft 6 is a key component connecting the impeller 3 and the bearing member 5. It is responsible for transmitting the power generated by the impeller 3 to the bearing member 5 and supporting the rotation of the impeller 3. The design of the rotating shaft 6 ensures the stable rotation of the impeller 3 and the effective transmission of power. The outer periphery of the rotating shaft 6 is provided with a pair of rotor members 7 located on both sides of the stator member 4. The rotor member 7 is located on both sides of the stator member 4 and is a key power conversion component in the pump assembly device. It interacts with the rotating magnetic field generated by the stator winding through the permanent magnet 74 to realize the rotation of the rotor plate 71, thereby driving the impeller 3 to rotate;

[0055] The pair of rotor members 7 respectively include a rotor plate 71, the rotor plate includes a plate body 712, and a second watertight thin plate 713 arranged on the plate body 712, the inner periphery of the plate body 712 is connected to the rotating shaft 6, the design of the rotor plate 71 ensures the stable installation of the permanent magnet 74 and the effective interaction with the stator winding, and at the same time, the strength and rigidity of the rotor plate 71 are also key factors to ensure its long-term stable operation, the rotor plate 71 is provided with a rotor cavity 72, the space formed between the plate body 711 and the second watertight thin plate 712 is the rotor cavity 72, and the design of the rotor cavity 72 is the permanent magnet The rotor body 74 provides a stable working environment and ensures effective magnetic coupling between the rotor and the stator windings. The rotor core 73 is installed in the rotor cavity 72. The design of the rotor core 73 improves the magnetic field strength and uniformity of the permanent magnet 74 and reduces the magnetic resistance and iron loss. The surface of the rotor core 73 is installed with a permanent magnet 74. The permanent magnet 74 is installed on the surface of the rotor core 73 and is a key component for the interaction between the rotor part 7 and the stator windings. The design and selection of the permanent magnet 74 determine the performance and efficiency of the rotor part 7. The rotor core 73 is arranged relative to the stator core 43.

[0056] A pair of the rotor plates 71 are respectively provided with a plurality of arc flow channels 711 on one side away from the stator component 4. The plurality of arc flow channels 711 are distributed in a circular array with the center point of the rotor plate 71 as the base point. The arc flow channels 711 further optimize the flow path of the coolant around the rotor component 7 and improve the heat dissipation efficiency. At the same time, as the rotor plate 71 rotates, the coolant in the arc flow channels 711 is effectively thrown to the outer edge of the rotor plate 71 by the centrifugal force. When the coolant is thrown to the outer edge of the rotor plate 71, it can flow into these flow gaps 10 more smoothly. This flow process not only enhances the heat exchange between the coolant and the rotor component 7 and the stator component 4, but also promotes the circulation of the coolant inside the pump assembly device, further improving the heat dissipation efficiency.

[0057] The end of the stator member 4 away from the pump body 1 is equipped with an end cover 8, which is installed at the end of the stator member 4 away from the pump body 1, and plays a role in sealing and protecting the internal components of the stator member 4. The design of the end cover 8 ensures the stability and safety of the internal components of the stator member 4, and prevents interference and damage from the external environment. At the same time, the end cover 8 also provides an installation basis for the boss 801 and other internal components. The inner side wall of the end cover 8 is provided with a boss 801, and the boss 801 is conical. The design of the boss 801 optimizes the flow path of the fluid and reduces The flow resistance is reduced, and the fluid dynamics performance of the pump assembly device is improved. At the same time, the conical structure of the boss 801 also helps to increase the flow rate and pressure of the fluid. A flow channel gap 802 is provided between the center point of one end of the rotating shaft 6 close to the boss 801 and the highest point of the boss 801. The flow channel gap 802 is 2cm-10cm. The size and shape of the flow channel gap 802 have an important influence on the fluid dynamics performance of the pump assembly device. Through the reasonable design and optimization of the flow channel gap 802, the fluid can be better allowed to enter the cooling channel 12;

[0058] A second liquid chamber 9 is provided between the end cover 8 and the stator member 4; a flow gap 10 is provided between a pair of the rotor members 7 and the stator member 4, and the flow gap 10 is a gap between the first watertight thin plate 413 and the second watertight thin plate 713. The flow gap 10 is provided between a pair of the rotor members 7 and the stator member 4, and is used to connect the first liquid chamber 2 and the second liquid chamber 9 to realize the circulation and exchange of the fluid, and at the same time, the rotor member 7 and the stator member 4 can be heat-dissipated. The pair of the flow gaps 10 are respectively connected to the first liquid chamber 2 and the second liquid chamber 9. The bearing member 5 is provided with a plurality of flow holes 11 connected to the pair of the flow gaps 10. The plurality of the flow holes 11 are opened on the inner circumference of the bearing sleeve 51, and the plurality of the flow holes 11 are distributed in a circular array with the center of the bearing sleeve 51 as the base point. The flow holes 11 allow the coolant to flow inside the bearing member 5 to take away the heat generated by the rotation of the bearing, thereby maintaining the low-temperature operation of the bearing and reducing wear and failure rate.

[0059] A cooling channel 12 connected to the first liquid chamber 2 and the second liquid chamber 9 respectively is provided in the rotating shaft 6 along the axial direction. The cooling channel 12 includes a pair of central channels 1201 arranged on the axis of the rotating shaft 6. The central channel 1201 is a main component of the cooling channel 12. They are responsible for guiding the fluid to flow inside the rotating shaft 6 to achieve an effective cooling effect, as well as the Tesla channel 1202 connected to a pair of the central flow channels 1201. The Tesla channel 1202 is formed by connecting a number of Tesla valves. The channel formed by connecting a number of Tesla valves is connected to the central flow channel 1201. The design of the Tesla valve can utilize the kinetic energy and pressure difference of the fluid to achieve unidirectional flow and automatic adjustment of the fluid, which helps to further improve the efficiency and stability of the cooling flow channel 12. A bell mouth 1203 is provided at one end of one of the central flow channels 1201, and the bell mouth 1203 is close to the end cover 8. The bell mouth 1203 is arranged at one end of one of the central flow channels 1201, close to the end cover 8, and it plays a role in guiding the fluid into the cooling flow channel 12. The design of the bell mouth 1203 can reduce the flow resistance of the fluid, increase the flow rate and pressure of the fluid, thereby enhancing the cooling effect of the cooling flow channel 12. At the same time, the shape and size of the bell mouth 1203 can also be adjusted and optimized according to actual needs to meet the performance requirements of different pump group devices.

[0060] like Fig.10 As shown in FIG. 11, embodiment 2, in some embodiments, the stator housing 41 is further provided with a heat conducting component 13, and the heat conducting component 13 includes a heat conducting block 1301 installed on the surface of a pair of the first watertight thin plates 413, and the number of the heat conducting blocks 1301 is several, and the several heat conducting blocks 1301 are embedded in the surface of the first watertight thin plate 413 in a reflective shape with the center of the first watertight thin plate 413 as the base point, and the several heat conducting blocks 1301 are in contact with the stator core 43;

[0061] The heat conducting component 13 is designed to quickly conduct and dissipate the heat generated by the stator core 43 during operation, effectively reducing the operating temperature of the stator core 43, and improving the electromagnetic conversion efficiency and service life. In addition, the fit between the heat conducting block 1301 and the stator core 43 can also improve the heat transfer efficiency between the two, further optimize the heat dissipation performance, and ensure the stability and reliability of the centrifugal pump during long-term operation; at the same time, the heat conducting block 1301 can also be used to enhance the structural strength of the first watertight thin plate 413 to prevent deformation or damage under high-speed rotation and fluid impact, thereby ensuring the stability and precision of the stator component 4.

[0062] The operation steps of the above embodiment are:

[0063] Start the motor, the coil 44 in the stator cavity 42 forms a stator winding through the stator core 43, and when power is applied, the stator winding generates a rotating magnetic field;

[0064] The N-pole magnetic field generated by the stator winding attracts the S-pole magnetic field generated by the permanent magnet 74 on the rotor member 7. At the same time, the S-pole magnetic field generated by the stator winding repels the N-pole magnetic field of the permanent magnet 74 on the rotor member 7. This interaction forms a torque that drives the rotor member 7 to rotate, causing the rotor members 7 on both sides of the nail member to start rotating.

[0065] The rotation of the pair of rotor members 7 drives the rotating shaft 6 and the impeller 3 on the rotating shaft 6 to rotate. As the impeller 3 rotates, the liquid inside is thrown out by the centrifugal force. The liquid is thrown into the space between the rotor member 7 and the impeller 3 to prepare for subsequent heat dissipation and fluid circulation.

[0066] As the rotor plate 71 on the rotor member 7 rotates, the liquid in the arc-shaped flow channel 711 thereon is also affected by the centrifugal force and is effectively thrown toward the outer edge of the rotor plate 71. When the liquid is thrown toward the outer edge of the rotor plate 71, the liquid can flow into the flow gap 10. The liquid enters the flow gap 10 on one side from the flow gap 10 to the flow gap 10 on the other side through the flow holes 11 on the bearing sleeve 51, and continues to flow into the second liquid chamber 9.

[0067] In the second liquid chamber 9, when the coolant flows through the boss 801, the flow speed is accelerated due to its gradually shrinking shape. However, near the highest point of the boss 801, the liquid is pressed into the bell mouth 1203 by utilizing the characteristic of increased local pressure.

[0068] The liquid enters the cooling channel 12 in the rotating shaft 6 through the bell mouth 1203 , and then returns to the first liquid chamber 2 through the cooling channel 12 .

[0069] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pump unit device based on cooling channel auxiliary heat dissipation, characterized in that: The invention comprises a pump body and a first liquid cavity provided on the pump body, wherein an impeller is arranged in the first liquid cavity, a stator component is installed on the outer side of the pump body, a bearing component is provided on the inner periphery of the stator component, a rotating shaft connected with the impeller is installed on the inner periphery of the bearing component, a pair of rotor components located on both sides of the stator component are provided on the outer periphery of the rotating shaft, an end cover is installed on the end of the stator component away from the pump body, a second liquid cavity is arranged between the end cover and the stator component; a flow gap is arranged between the pair of the rotor components and the stator component, the pair of the flow gaps are respectively connected with the first liquid cavity and the second liquid cavity, a plurality of flow holes connected with the pair of the flow gaps are provided on the bearing component, and cooling channels respectively connected with the first liquid cavity and the second liquid cavity are arranged in the rotating shaft along the axial direction.

2. A pump assembly device based on cooling channel auxiliary heat dissipation according to claim 1, characterized in that: The inner wall of the first liquid cavity is provided with a liquid inlet hole connected to the pump body, the inner wall of the first liquid cavity is provided with circumferentially distributed flow channel grooves, and the side walls of the flow channel grooves are provided with liquid discharge holes connected to the pump body.

3. A pump assembly device based on cooling channel auxiliary heat dissipation according to claim 1, characterized in that: The stator component includes a stator shell connected to the pump body, a stator cavity is opened in the stator shell, a stator core is installed in the stator cavity, a coil is arranged on the stator core, a wire outlet hole is opened on the outer periphery of the stator shell, one end of the stator shell away from the pump body is connected to the end cover, the inner periphery of the stator shell is connected to the rotating shaft component, and a heat conduction component is arranged on the stator shell.

4. A pump assembly device based on cooling channel auxiliary heat dissipation according to claim 1, characterized in that: The bearing component includes a bearing sleeve connected to the stator component, the bearing sleeve is provided with a circulation hole, a bearing liner is provided on the inner side of the bearing sleeve, a shaft sleeve is installed on the inner periphery of the bearing liner, a rotor ring is provided on the outer periphery of the shaft sleeve and is located on both sides of the bearing liner, a pair of rotor rings are respectively installed with thrust plate seats on one side away from the bearing liner, the thrust plate seat and the bearing sleeve are respectively installed on the outer periphery of the rotating shaft, and the shaft sleeve is connected to the outer periphery of the rotating shaft.

5. A pump assembly device based on cooling channel auxiliary heat dissipation according to claim 4, characterized in that: A plurality of the flow holes are opened on the inner circumference of the bearing sleeve, and the plurality of the flow holes are distributed in a circular array with the center of the bearing sleeve as a base point.

6. A pump assembly device based on cooling channel auxiliary heat dissipation according to claim 1, characterized in that: The pair of rotor components respectively include a rotor plate, a rotor cavity is opened in the rotor plate, a rotor core is installed in the rotor cavity, a permanent magnet is installed on the surface of the rotor core, and the inner periphery of the pair of rotor plates is connected to the rotating shaft.

7. A pump assembly device based on cooling channel auxiliary heat dissipation according to claim 6, characterized in that: A pair of the rotor plates are respectively provided with a plurality of arc-shaped flow channels on one side away from the stator component. The plurality of arc-shaped flow channels are distributed in a ring array with the center point of the rotor plate as a base point.

8. A pump assembly device based on cooling channel auxiliary heat dissipation according to claim 1, characterized in that: The inner side wall of the end cover is provided with a boss, and the boss is conical. A flow channel gap is provided between the center point of the rotating shaft close to one end of the boss and the highest point of the boss, and the flow channel gap is 2cm-10cm.

9. A pump assembly device based on cooling channel auxiliary heat dissipation according to claim 1, characterized in that: The cooling channel includes a pair of central channels arranged on the axis of the rotating shaft, and a Tesla channel connected to the pair of central channels; one end of one of the central channels is provided with a bell mouth, and the bell mouth is close to the end cover.

10. A pump assembly device based on cooling channel auxiliary heat dissipation according to claim 1, characterized in that: A control box is installed on the outer side wall of the pump body.

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