Water pump without motor framework and with good heat dissipation performance

Abstract

The invention relates to the technical field of electronic water pumps, discloses a motor-free framework water pump with good heat dissipation performance, and aims to solve the problems that the cost is high and the heat dissipation of the whole machine is difficult when a framework mold is independently developed. According to the water pump, the aluminum heat conduction seat frame and the heat conduction silicone grease are adopted, and heat generated when the driver works can be effectively absorbed. The two groups of flow guide grooves designed on the shaft seat can lead cooling liquid in the machine cavity into the heat conduction seat frame, the heat dissipation process is accelerated through circular flowing of the cooling liquid, the driver and the water pump can stably operate at higher environment temperature and working temperature, and the service life is remarkably prolonged. In addition, due to the integrated design, additional installation of the stator, the upper framework and the lower framework is avoided, the production process is simplified, and the production cost and time are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of electronic water pumps, and in particular to a water pump without a motor frame and having good heat dissipation. Background Art

[0002] When the batteries, motors, heating and other functions in existing new energy vehicles are in operation, electronic water pumps are required to drive the coolant to flow for heat dissipation. However, if the water pump runs at high speed for a long time and the heat generated by its own operation cannot be dissipated in time, it will affect the service life of the driver and motor, thereby greatly reducing the overall life of the water pump.

[0003] The existing water pump heat dissipation method is basically to stick a thermally conductive silicone sheet between the driver board and the box cover to transfer the heat on the driver board to the box cover for heat dissipation. When the water pump runs for a long time under high ambient temperature and working temperature, this heat dissipation method cannot dissipate the heat in time, causing the water pump to operate at a reduced rate, affecting the performance output and service life.

[0004] In addition, when assembling the parts of existing new energy vehicle electronic water pumps, the motor inside needs to produce a separate skeleton first, and two sets of upper and lower skeleton molds need to be developed separately for the skeleton. After subsequent production, the upper and lower skeletons need to be inserted into the two ends of the stator core. In order to be wound by the subsequent winding machine, it needs to be installed in the machine base after winding. Today's new energy vehicle industry is highly competitive, and cost advantages will be particularly important in the competition. The motors in existing electronic water pumps need to develop molds for the upper and lower skeletons separately during production, and they also need to occupy injection molding machines and paired workers to produce the upper and lower skeletons separately. Later, the two need to be assembled between the stator core, and finally the motor needs to be assembled in the machine base. The cost and time required for the entire process will be very high. Summary of the invention

[0005] The present invention proposes a water pump with good heat dissipation performance without a motor frame, which has the advantages of an integrated design between the upper and lower frames and the base and the circulation of coolant in the whole machine, so as to solve the problems proposed in the above background technology that the separate development of upper and lower frame molds leads to increased costs and the difficulty of heat dissipation of the whole machine.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a water pump with good heat dissipation performance without a motor frame, comprising: the water pump is composed of a pump body, a machine base, a motor mechanism, and a control mechanism; the pump body is fixedly connected to the shielding seat, the shielding seat is fixedly connected to the machine base, and a compensation ring is arranged between the shielding seat and the stator core; a rotating shaft is movably installed in the pump body, and the rotating shaft and the shaft seat are threadedly connected; six groups of frames are equidistantly injection-molded on the inner wall of the machine base, and a winding seat is integrally injection-molded on one side of the six groups of frames; the stator core is inserted into the frame to realize radial fixed limitation of the frame, and the winding seat and the shielding seat axially limit the two ends of the frame.

[0007] Furthermore, the motor mechanism consists of a stator assembly and a rotor assembly, and three groups of slots are provided on the winding seat, and motor pins are inserted into the three groups of slots; the stator assembly consists of a stator core and a winding, and the stator core is inserted on the outside of the skeleton, and the winding is wound on the outside of the skeleton, the winding seat and the motor pins, and the three phases of the winding are finally placed on the motor pins; the rotor assembly consists of a rotor core, magnetic steel and a graphite bearing, and four groups of magnetic steel are interference-inserted into the slots on the rotor core and are integrally injection-molded with the graphite bearing to form rotor injection molding part 1, and rotor injection molding part 1 is injection-molded again to form rotor injection molding part 2, and the rotor assembly is sleeved on the outer end of the rotating shaft, and a front thrust washer is provided between the graphite bearing and the pump body.

[0008] Furthermore, the control mechanism is composed of a connector seat, a driver and a connector pin; the connector seat and the connector pin are integrally injection molded, and the connector seat and the machine base are fixed by four sets of locking bolts.

[0009] Furthermore, thermal grease is filled between the driver and the thermally conductive mount, two groups of mounting holes are provided on the driver and the thermally conductive mount, two groups of M③ bolts penetrate the mounting holes on the driver and the thermally conductive mount and are fixedly connected to the shaft seat, sealing grooves are provided on the outer wall and the bottom of the shaft seat, a shielding sleeve sealing ring and a thermally conductive seat sealing ring are respectively embedded in the two sealing grooves, two groups of guide grooves are symmetrically provided on the shaft seat, and a cavity is provided between the shaft seat and the thermally conductive mount.

[0010] Furthermore, a box cover sealing ring is arranged between the machine base and the box cover seat, the box cover seat and the machine base are fixed by four groups of M④ bolts, and a plurality of groups of heat sinks are arranged on the box cover seat.

[0011] Furthermore, a limiting bolt that contacts the outside of the rotating shaft is arranged on the side of the shaft seat, a sealing protection ring is arranged on the top surface of the shaft seat, and a plurality of cooling fan blades distributed in an annular shape and at equal angles are fixedly connected to the shaft seat.

[0012] Furthermore, a pressure measuring retaining ring is movably arranged outside the shielding seat, and a pressure measuring spring is arranged between the pressure measuring retaining ring and the shielding seat. An air release groove is provided at the end of the shielding seat, and a resonance cavity is provided at the bottom of the shielding seat.

[0013] Furthermore, three power receiving rings are mounted on the bottom of the driver, three power sockets are fixedly installed on the inner side of the box cover seat, the power sockets are plugged into the connector pins, and a conductive arm is movably mounted on the surface of the power socket and is pushed upward by a power spring; a support arm is fixed on the outside of the conductive arm, an adjusting ring frame is movably mounted on the outside of the driver, a traction arm frame is movably mounted on the top of the adjusting ring frame, and the other end of the traction arm frame is synchronously connected to the pressure measuring baffle ring, and a baffle ball is arranged at the bottom of the adjusting ring frame.

[0014] Furthermore, heat dissipation holes distributed at equal angles are provided on the outer circumference of the shielding seat.

[0015] The present invention has the following beneficial effects: By setting up an aluminum heat-conducting frame and thermal grease, the heat generated by the driver when working can be absorbed, and by opening two sets of guide grooves on the shaft seat, the coolant inside the machine cavity can be introduced into one side of the heat-conducting frame. In this way, the heat on the heat-conducting frame can be taken away by the circulation of the coolant, which accelerates the heat dissipation, so that the entire driver and water pump can adapt to higher ambient temperature and operating temperature, and the service life will be greatly increased.

[0016] The design of integrating the upper and lower frames of the traditional stator core with the base eliminates the need to develop molds for the upper and lower frames, saves the installation of the stator and upper and lower frames, reduces the number of processes, and reduces production time and labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0018] The present invention may be more clearly understood from the following detailed description with reference to the accompanying drawings, in which: Figure 1 It is a schematic diagram of the overall external three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the overall external plane structure of the present invention; Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure at the middle BB; Figure 4 for Figure 3 The enlarged structural diagram at E in the middle; Figure 5 for Figure 3 The enlarged structural diagram at F in the middle; Figure 6 It is a schematic diagram of the explosion of the whole components in the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the rotor assembly; Figure 8 It is a schematic diagram of the skeleton structure, installation position and quantity; Fig. 9 It is a schematic diagram of the structure and position between the frame and the winding seat; Fig.10 It is a schematic diagram of the position, structure and number of slots on the winding seat; Fig.11 This is a schematic diagram of the three-dimensional structure of the central axle seat of the present invention; Fig.12 It is a schematic diagram of the three-dimensional structure of the adjusting ring frame in the present invention; Fig.13 for Figure 6 The schematic diagram of the structure at G in the middle is enlarged; Fig.14 for Figure 6 Enlarged structural diagram at H in the middle.

[0019] In the figure: 1, pump body; 2, rotor assembly; 201, rotor core; 202, magnetic steel; 203, rotor injection molding part 1; 204, graphite bearing; 205, rotor injection molding part 2; 3, front thrust washer; 4, shielding seat; 400, air release groove; 401, resonance chamber; 5, shielding sleeve sealing ring; 6, winding; 7, stator core; 8, machine base; 800, heat dissipation hole; 9, motor pin; 10, connector seat; 11, locking bolt; 12, connector pin; 13, sealing gasket; 14, rotating shaft; 15, shaft seat; 150, guide slot; 151, cooling fan blade; 16, heat-conducting seat sealing ring; 17, heat-conducting seat frame; 18, M③ bolt; 19, thermal grease; 20, driver; 21, box cover sealing ring; 22, box cover seat; 23, M④ bolt; 24, frame; 25, winding seat; 26, compensation ring; 27, power receiving ring; 28, sealing protection ring; 29, pressure measuring retaining ring; 290, pressure measuring spring; 30, traction arm frame; 31, adjustment ring frame; 310, retaining ball; 32, power socket; 33, conductive arm; 330, power top spring; 331, support arm. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments 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.

[0021] refer to Figure 1 , Figure 2 , Figure 6 , Fig.13 and Fig.14It can be seen that the device is composed of a pump body 1, a base 8, a motor mechanism, and a control mechanism. The pump body 1 and the shielding seat 4 are connected by rotation friction welding, and the shielding seat 4 and the base 8 are connected by vibration friction welding. A compensation ring 26 made of rubber material is arranged between the shielding seat 4 and the stator core 7. The compensation ring 26 compensates for the error of vibration friction welding and the size of parts through its own deformation, so as to effectively limit the stator core 7. The rotating shaft 14 and the shaft seat 15 are connected by threads, combined with Figure 8 It can be seen that the inner wall of the machine base 8 is equidistantly and integrally molded with six groups of skeletons 24, and one side of the six groups of skeletons 24 is integrally molded with a winding seat 25. In this way, there is no need to develop molds for the upper and lower skeletons separately, saving costs, and during assembly, the stator core 7 can be directly inserted into the skeleton 24 for radial fixed limit, and the axial ends are limited by the winding seat 25 and the shielding seat 4. After the stator core 7 is inserted into the skeleton 24, it can be directly wound on the machine base 8 by a winding machine, which saves the installation of the stator and the upper and lower skeletons, reduces the process, and reduces the production time and labor cost.

[0022] The motor mechanism consists of a stator assembly and a rotor assembly 2, such as Fig. 9 and Fig.10 As shown, the winding seat 25 is provided with three groups of slots, and the motor pins 9 are inserted into the three groups of slots. The stator assembly is composed of a stator core 7 and a winding 6. The stator core 7 is inserted on the outside of the frame 24, and the winding 6 is wound on the outside of the frame 24, the winding seat 25 and the motor pins 9. The three phases of the winding 6 are finally placed on the motor pins 9 and fixed to the motor pins 9 by resistance welding; refer to Figure 6 , Fig.13 , Fig.14 and Figure 7 It can be seen that the rotor assembly 2 is composed of a rotor core 201, a magnetic steel 202, a rotor injection molded part 1 203, a graphite bearing 204 and a rotor injection molded part 2 205. Four groups of magnetic steels 202 are interference-inserted into the grooves on the rotor core 201 and are integrally injection-molded with the graphite bearing 204 to form a rotor injection molded part 1 203. The rotor injection molded part 1 203 is injection-molded again to form a rotor injection molded part 2 205. The rotor assembly 2 is sleeved on the outer end of the rotating shaft 14, and a front thrust washer 3 is arranged between the graphite bearing 204 and the pump body 1.

[0023] The control mechanism is composed of a connector seat 10, a driver 20 and a connector pin 12. Figure 3 , Figure 6 , Fig.13 and Fig.14 As shown, the connector seat 10 and the connector pins 12 are integrally injection molded, and the connector seat 10 is fixed to the base 8 through the sealing gasket 13 by four sets of locking bolts 11, and the electrical signal holes on the driver 20 are connected to the connector pins 12 in a one-to-one correspondence.

[0024] Thermal grease 19 is filled between the driver 20 and the heat-conducting frame 17. Both ends of the heat-conducting frame 17 are locked to one side of the shaft seat 15 by M③ bolts 18. Two groups of mounting holes are provided on the driver 20 and the heat-conducting frame 17. The two groups of M③ bolts 18 penetrate the mounting holes on the driver 20 and the heat-conducting frame 17 and are fixedly connected to the shaft seat 15. Sealing grooves are provided on the outer wall and the bottom of the shaft seat 15. The shielding sleeve sealing ring 5 and the heat-conducting seat sealing ring 16 are respectively embedded in the sealing grooves. Two groups of guide grooves 150 are symmetrically provided on the shaft seat 15, and a cavity is provided between the shaft seat 15 and the heat-conducting frame 17 for the flow of coolant.

[0025] A box cover sealing ring 21 is arranged between the machine base 8 and the box cover seat 22 . The box cover seat 22 and the machine base 8 are fixed by four groups of M④ bolts 23 . A plurality of groups of heat sinks are arranged on the box cover seat 22 .

[0026] refer to Figure 3 , Figure 4 and Fig.11 It can be clearly seen that the side of the shaft seat 15 is provided with a limit bolt that abuts against the outside of the rotating shaft 14, ensuring that the rotating shaft 14 and the shaft seat 15 can move relative to each other within a certain range, and the shaft seat 15 will not be separated from the rotating shaft 14 due to the restriction of the limit bolt. A sealing protection ring 28 is provided on the top surface of the shaft seat 15. When the sealing protection ring 28 abuts against the bottom of the shielding seat 4, the deformation of the sealing protection ring 28 is used to achieve secondary sealing. In addition, combined with Figure 3 , Figure 4 and Fig.11 It can be seen that the shaft seat 15 is fixedly connected with a plurality of cooling blades 151 distributed in an annular shape and at equal angles. When the shaft seat 15 rotates, the external airflow tends to be transported to the central part of the shaft seat 15. The advantage is that when the shaft seat 15 rotates, the shaft seat 15 transports the airflow on the outside to the middle part. Due to the relative movement between the shaft seat 15 and the shielding seat 4, the shielding sleeve sealing ring 5 seals the two. If the shielding sleeve sealing ring 5 leaks, the high-pressure airflow generated by the cooling blades 151 is blown to the inside of the shielding seat 4 to prevent the coolant in the shielding seat 4 from leaking from the leaking part between the shielding seat 4 and the shielding sleeve sealing ring 5. A pressure measuring baffle ring 29 is movably arranged on the outside of the shielding seat 4, and a pressure measuring spring 290 is arranged between the pressure measuring baffle ring 29 and the shielding seat 4. Under the push of the elastic force of the pressure measuring spring 290, the pressure measuring baffle ring 29 is forced to always block the air venting groove 400 opened at the end of the shielding seat 4. Correspondingly, the side of the pressure measuring baffle ring 29 will also block the side opening of the resonance cavity 401 opened at the bottom of the shielding seat 4.

[0027] like Figure 2 and Figure 3 As shown, the outer side of the shielding seat 4 is provided with heat dissipation holes 800 distributed at equal angles, so that the external airflow can enter the shielding seat 4, making it easier for the internal heat to dissipate outwards. Figure 3, Figure 5 and Fig.12 It can be seen that three power receiving rings 27 are mounted on the bottom of the driver 20, and correspondingly, three power receiving sockets 32 are fixedly mounted on the inner side of the box cover seat 22, and the power receiving sockets 32 are plugged into the connector pins 12, and a conductive arm 33 that is pushed upward by a power receiving top spring 330 is movably mounted on the surface of the power receiving socket 32 ​​until the conductive arm 33 abuts against the power receiving ring 27. Since there are also three conductive arms 33, the three-phase power supplied from the outside can be supplied to the driver 20. A support arm 331 is fixed on the outer side of the conductive arm 33, and an adjustment ring frame 31 is movably mounted on the outer side of the driver 20. The adjustment ring frame 31 uses the protrusions arranged on the inner side to ensure that it can only reciprocate up and down along the side of the driver 20. A traction arm frame 30 is movably mounted in the "T"-shaped groove on the top of the adjustment ring frame 31, and the other end of the traction arm frame 30 is synchronously connected to the pressure measuring retaining ring 29 to achieve synchronous movement of the two. When the blocking ball 310 arranged at the bottom of the adjusting ring frame 31 passes through the supporting arm 331, the outer spherical surface of the hemisphere forces the conductive arm 33 to have a tendency to press the connecting top spring 330 downward.

[0028] In specific applications, after the whole machine is assembled, the connector pin 12 is supplied with electric energy, and the driver 20 is used to control the winding 6 on the stator core 7 to work, so that the shaft 14 rotates. Figure 3 It can be seen that the coolant is input from the top, enters the shielding seat 4, and is finally discharged from the side of the pump body 1. At the same time, due to the provision of the guide groove 150, the coolant in the shielding seat 4 can also send the heat dissipated from the driver 20 to the outside.

[0029] Under normal conditions, the rotor assembly 2 is stopped, and the conductive arm 33 moves upward and hits the power receiving ring 27 under the elastic force of the power-connecting top spring 330, until the power receiving ring 27 moves upward and hits the inner side of the driver 20, and further pushes the driver 20 to make the heat-conducting seat frame 17 and the shaft seat 15 move upward synchronously. At this time, the sealing protection ring 28 hits the shielding seat 4 to ensure secondary sealing between the shielding seat 4 and the shaft seat 15. The pressure measuring ring 29 is pushed into the air release groove 400 by the elastic force of the pressure measuring spring 290, and blocks the resonance cavity 401. When the rotor assembly 2 drives the shaft seat 15 to rotate, the shaft seat 15 drives the driver 20 to rotate synchronously, and the rotating driver 20 drives the adjusting ring frame 31 to rotate synchronously. When the blocking ball 310 passes through the support arm 331, it is blocked and restricted by the support arm 331, forcing the driver 20 to increase its rotation resistance, causing the shaft seat 15 to also increase its rotation resistance. Under the threaded connection between the rotating shaft 14 and the shaft seat 15, the rotating rotating shaft 14 has a tendency to push the shaft seat 15 to move downward until the rotating shaft 14 and the shaft seat 15 are away from the limit and are restricted by the limit bolts so that the rotating shaft 14 and the shaft seat 15 no longer rotate relative to each other. The rotating shaft 14 will drive the shaft seat 15 to rotate again. At this time, the downward movement of the shaft seat 15 will cause the sealing protection ring 28 to be relatively away from the shielding seat 4, thereby ensuring that the sealing protection ring 28 will not contact the shielding seat 4 when the shaft seat 15 rotates, avoiding friction loss of the sealing protection ring 28, and when the cooling fan blade 151 moves downward, the air outlet portion in the middle thereof will be directly opposite to the bottom of the shielding seat 4.

[0030] When the rotating shaft 14 further drives the shaft seat 15 to rotate, the rotation strength of the driver 20 increases, which will cause the adjusting ring frame 31 to drive the blocking ball 310 to increase its rotation strength, so that the conductive arm 33 moves downward and compresses the power-connecting top spring 330. The corresponding power-receiving ring 27 will always contact the top of the conductive arm 33 under gravity to ensure normal electrical connection between the two. As the shaft seat 15 rotates, if the seal between the shielding sleeve sealing ring 5 and the shielding seat 4 is normal, the airflow blown by the cooling fan blades 151 to the bottom of the shielding seat 4 will be pushed out from the air relief groove 400, thereby pushing the pressure measuring baffle ring 29 upward and compressing the pressure measuring spring 290. The upward pressure measuring baffle ring 29 not only releases the blockage of the air relief groove 400 and the resonance chamber 401, so that the high-pressure airflow at the bottom of the shielding seat 4 can be quickly discharged from the air relief groove 400 and the resonance chamber 401, but also due to the upward movement of the pressure measuring baffle ring 29, the traction arm frame 30 drags the adjustment ring frame 31 upward synchronously, and the adjustment ring frame 31 pulls the baffle ball 310 upward until the baffle ball 310 is away from the support arm 331, to ensure that the baffle ball 310 will not continue to touch the support arm 331 when the equipment is working normally.

[0031] If the shielding sleeve seal ring 5 has friction loss when rotating for a long time, the airflow delivered by the cooling blades 151 to the bottom of the shielding seat 4 will enter the inside of the shielding seat 4 according to the leakage position, thereby preventing the coolant in the shielding seat 4 from flowing out from the leakage point. In addition, due to the leakage of the shielding sleeve seal ring 5, the airflow delivered by the cooling blades 151 will not all act on the pressure measuring baffle ring 29, and it is also impossible to push the pressure measuring baffle ring 29 upward to suppress the pressure measuring spring 290, so that the pressure measuring baffle ring 29 blocks the air leakage groove 400 and the side of the resonance chamber 401. At this time, when the high-speed airflow passes through the resonance chamber 401, only the downward opening in the resonance chamber 401 has airflow blowing, which will cause a resonance sound in the resonance chamber 401. If multiple resonance chambers 401 are provided, the shielding sleeve seal ring 5 will cause the pump body 1 to emit a continuous sound after the leakage, thereby alerting the operator that the shielding sleeve seal ring 5 may leak. Regarding other warnings, such as Figure 5 As shown, when the traction arm frame 30 pushes the adjustment ring frame 31 and the blocking ball 310 downward, the blocking ball 310 passing through the support arm 331 will also frequently push the conductive arm 33 downward and suppress the power-connecting top spring 330. After passing over the blocking ball 310, it will quickly move upward to the power-receiving ring 27 under the push of the elastic force of the power-connecting top spring 330, until the power-receiving ring 27 moves upward and hits the driver 20. The resulting impact sound can also be used for sound warnings. In actual application, the movement of the three receiving rings 27 can be detected. Under normal conditions, the adjusting ring frame 31 drives the blocking ball 310 upward. At this time, the three conductive arms 33 simultaneously push the receiving ring 27 upward. If leakage occurs, the adjusting ring frame 31 drives the blocking ball 310 downward, which means that the support arm 331 passing through the blocking ball 310 has a tendency to push the conductive arm 33 downward, which also causes the corresponding one of the three receiving rings 27 to go downward. Therefore, when only two receiving rings 27 go up to the driver 20, this can be used as an alarm detection signal.

[0032] When the equipment is shut down, even if leakage occurs between the shielding seat 4 and the shielding sleeve sealing ring 5, the shaft seat 15 is forced upward under the elastic force of the power-on top spring 330, so that the rotating shaft 14 and the shaft seat 15 rotate relative to each other and return to the shutdown state. Secondly, as mentioned above, the sealing protection ring 28 will abut against the shielding seat 4 to ensure that even if leakage occurs between the shielding sleeve sealing ring 5, when the equipment is shut down, it will be sealed by the sealing protection ring 28 and the coolant in the shielding seat 4 will not overflow.

[0033] From the above, it can be seen that the present invention integrates the upper and lower frames 24 of the traditional stator core 7 with the machine base 8, which eliminates the need to develop molds for the upper and lower frames 24, saves the installation of the stator and the upper and lower frames 24, reduces the process, reduces the production time and labor costs, and absorbs the heat generated by the driver 20 when it is working by setting an aluminum heat-conducting frame 17 and heat-conducting silicone grease 19. Two sets of guide grooves 150 are set on the shaft seat 15, which can introduce the coolant inside the machine cavity into one side of the heat-conducting frame 17, accelerate heat dissipation, so that the entire driver 20 and the water pump can adapt to higher ambient temperatures and operating temperatures, and the service life will be greatly increased. In addition, a sealing detection structure is also built in to avoid the problem of leakage and overflow of the coolant inside the equipment.

Claims

1. A water pump without a motor frame and good heat dissipation, characterized in that: include: The water pump is composed of a pump body (1), a base (8), a motor mechanism, and a control mechanism; The pump body (1) and the shielding seat (4) are fixedly connected, the shielding seat (4) and the machine base (8) are fixedly connected, and a compensation ring (26) is provided between the shielding seat (4) and the stator core (7); A rotating shaft (14) is movably mounted in the pump body (1), and the rotating shaft (14) and the shaft seat (15) are threadedly connected; The inner wall of the machine base (8) is equidistantly and integrally formed with six groups of frames (24), and one side of the six groups of frames (24) is integrally formed with a winding seat (25); The stator core (7) is inserted into the frame (24) to achieve radial fixed position limiting of the frame (24), and the winding seat (25) and the shielding seat (4) are used to axially limit the two ends of the frame (24); The motor mechanism is composed of a stator assembly and a rotor assembly (2), and the winding seat (25) is provided with three groups of slots, and the motor pins (9) are all inserted into the three groups of slots; The stator assembly is composed of a stator core (7) and a winding (6), wherein the stator core (7) is inserted on the outside of the frame (24), the winding (6) is wound on the outside of the frame (24), the winding seat (25) and the motor pin (9), and the three phases of the winding (6) are finally placed on the motor pin (9); The rotor assembly (2) is composed of a rotor core (201), magnetic steel (202) and a graphite bearing (204); four groups of magnetic steel (202) are interference-inserted into grooves on the rotor core (201) and are integrally injection-molded with the graphite bearing (204) to form a rotor injection molded part 1 (203); the rotor injection molded part 1 (203) is injection-molded again to form a rotor injection molded part 2 (205); the rotor assembly (2) is sleeved on the outer end of the rotating shaft (14), and a front thrust washer (3) is provided between the graphite bearing (204) and the pump body (1); The control mechanism is composed of a connector seat (10), a driver (20) and a connector pin (12); The connector seat (10) and the connector pin (12) are integrally injection molded, and the connector seat (10) and the machine base (8) are fixed by four sets of locking bolts (11); Thermal grease (19) is applied between the driver (20) and the heat-conducting seat frame (17). Two groups of mounting holes are provided on the driver (20) and the heat-conducting seat frame (17). Two groups of M③ bolts (18) penetrate the mounting holes on the driver (20) and the heat-conducting seat frame (17) and are fixedly connected to the shaft seat (15). The outer wall and the bottom of the shaft seat (15) are provided with sealing grooves. The shielding sleeve sealing ring (5) and the heat-conducting seat sealing ring (16) are respectively embedded in the two sealing grooves. Two groups of guide grooves (150) are symmetrically provided on the shaft seat (15), and a cavity is provided between the shaft seat (15) and the heat-conducting seat frame (17).

2. The water pump with good heat dissipation performance without a motor frame according to claim 1, characterized in that: A box cover sealing ring (21) is arranged between the machine base (8) and the box cover base (22); the box cover base (22) and the machine base (8) are fixed by four groups of M④ bolts (23); and a plurality of groups of heat sinks are arranged on the box cover base (22).

3. The water pump with good heat dissipation performance without a motor frame according to claim 1, characterized in that: A limiting bolt is arranged on the side of the shaft seat (15) and abuts against the outside of the rotating shaft (14). A sealing protection ring (28) is arranged on the top surface of the shaft seat (15). A plurality of cooling blades (151) distributed in an annular shape and at equal angles are fixedly connected to the shaft seat (15).

4. The water pump with good heat dissipation performance without a motor frame according to claim 3, characterized in that: A pressure measuring retaining ring (29) is movably arranged outside the shielding seat (4), and a pressure measuring spring (290) is arranged between the pressure measuring retaining ring (29) and the shielding seat (4). An air discharge groove (400) is provided at the end of the shielding seat (4), and a resonance cavity (401) is provided at the bottom of the shielding seat (4).

5. The water pump with good heat dissipation performance without a motor frame according to claim 4, characterized in that: The bottom of the driver (20) is provided with three power receiving rings (27), and three power receiving sockets (32) are fixedly installed on the inner side of the box cover seat (22). The power receiving sockets (32) are plugged into the connector pins (12), and a conductive arm (33) is movably installed on the surface of the power receiving socket (32) and is pushed upward by a power receiving top spring (330); A support arm (331) is fixed on the outside of the conductive arm (33), an adjusting ring frame (31) is movably mounted on the outside of the driver (20), a traction arm frame (30) is movably mounted on the top of the adjusting ring frame (31), and the other end of the traction arm frame (30) is synchronously connected to the pressure measuring retaining ring (29), and a retaining ball (310) is arranged at the bottom of the adjusting ring frame (31).

6. The water pump with good heat dissipation performance without a motor frame according to any one of claims 3 or 5, characterized in that: The shielding seat (4) is provided with heat dissipation holes (800) distributed at equal angles in the circumferential direction of the outer side.

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