Cooling system of integrated connector motor

Abstract

The invention discloses a cooling system of an integrated connector motor, the motor comprises a motor shell, a guide plate is arranged outside the motor shell, an external connector is arranged at the bottom of the motor, and a guide plate fastening structure is arranged above the external connector. The cooling efficiency is high, and the guide plate fastening force is reliable.

Description

Technical Field

[0001] The invention belongs to the field of motor cooling, and in particular, the invention relates to a cooling system for a motor with an integrated connector. Background Art

[0002] To ensure the long-term operation of the motor, a cooling mechanism is generally designed for the motor. For motor types integrated with external connectors, the connection harness can be reduced and the reliability of the control system can be improved. However, since the external connector is close to the motor body, the cooling system needs to avoid this area. The current motor cooling water jacket is generally conventional in design and simple in installation. It cannot avoid the external connector in space, resulting in interference between the two spaces and inability to install. Since it can only be put on the outside of the motor housing, the matching effect is low, the motor cooling effect is limited, the fastening force is poor, and multiple auxiliary brackets need to be added for fixing, which makes the motor too large and affects the heat dissipation performance. The replacement process after damage is cumbersome and complicated, and it is easy to loosen after long-term use, resulting in reduced cooling performance, affecting the long-term stable operation of the motor.

[0003] The utility model patent with publication number CN219041531U was published on May 16, 2023. It is named as a copper tube cooling motor housing structure, including a motor housing, a coolant pipe with an adjustable number of turns wrapped around the outer circumference of the motor housing, and the coolant pipe is in conflict with the outer wall of the motor housing. The coolant pipe is injected with coolant to take away the heat of the motor housing during the circulation of the coolant. This copper tube cooling motor housing structure also cannot solve the technical problems recorded above. Summary of the invention

[0004] The object of the present invention is to provide a cooling system for an integrated connector motor that achieves space avoidance of an external connector, has high cooling efficiency, and has reliable guide plate fastening force in view of the deficiencies in the prior art.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] The cooling system of the motor with integrated connector, the motor comprises a motor housing, a guide plate is arranged outside the motor housing, an external connector is arranged at the bottom of the motor, and a guide plate fastening structure is arranged above the external connector.

[0007] The guide plate includes a first guide plate and a second guide plate, the first guide plate and the second guide plate are hinged, a gap is provided between the first guide plate and the second guide plate, and the gap is located above the external connector; the guide plate fastening structure includes a fastening belt, and both ends of the fastening belt are respectively provided on the first guide plate and the second guide plate.

[0008] A rack and a limit rod are respectively provided at both ends of the fastening belt, a slot is provided at the end of the second guide plate, the limit rod is located at the end of the slot, a mounting seat is provided at the end of the first guide plate, a driving gear is provided in the mounting seat, the driving gear is meshed with a transmission gear, a bevel gear is fixedly connected to the transmission gear, a helical worm is provided on the inner side, the rack is meshed with the helical worm, one end of the helical worm is fixedly connected with a bevel gear, and the bevel gear is meshed with the bevel gear.

[0009] A radiator is provided below the motor, a cooling fan is provided at the bottom of the radiator, a water pump is provided at one end of the radiator, the water pump is connected to the first guide plate, and the other end of the radiator is connected to the second guide plate.

[0010] The mounting seat includes a fastening bracket and an upper cover, a rotating shaft is provided in the middle of the fastening bracket, the middle of the driving gear is sleeved on the rotating shaft, an arc-shaped limiting plate is provided on the inner side of the upper cover, and the arc-shaped limiting plate is located on the outer side of the driving gear and the transmission gear; a mounting groove is provided on the fastening bracket, and the mounting groove corresponds to the arc-shaped limiting plate.

[0011] A through hole is provided in the middle of the upper cover, a boss is provided in the middle of the driving gear, the boss extends out of the through hole, and a straight groove is provided on the boss.

[0012] The water pump includes a water pump outlet, and the radiator includes a radiator inlet; a water inlet pipe is fixedly connected to the outer side of the first guide plate, and a connecting straight pipe is connected between the water inlet pipe and the water pump outlet; a water outlet pipe is fixedly connected to the outer side of the second guide plate, and a connecting curved pipe is connected between the water outlet pipe and the radiator inlet.

[0013] The transmission gears are located on both sides of the driving gear, and the fastening belts are arranged in pairs.

[0014] The fastening bracket and the upper cover are fixed by snapping, and fixing holes are evenly distributed on the end of the fastening bracket.

[0015] The radiator is provided with a fixing bracket, the fixing bracket is an L-shaped structure, three fixing brackets are provided, and the bottom of the motor is connected to the top of the fixing bracket.

[0016] The technical effects of the present invention are as follows: a cooling system for an integrated connector motor of the present invention is adopted, a guide plate is arranged outside the motor housing to exchange heat for the motor housing, and the coolant is circulated under the drive and heat dissipation of a water pump and a radiator, thereby meeting the long-term stable operation of the motor; the guide plates are hingedly connected, which not only facilitates the installation process, but also a certain interval is designed between the two to achieve space avoidance for external connectors on the motor, and the structural design is reasonable; the guide plate is installed and fitted on the motor housing through a fastening belt, and its structural design is ingenious, and the loosening and tightening process of the guide plate is achieved through multiple gear meshing transmissions and worm transmissions, thereby ensuring that the guide plate is closely fitted to the motor housing, the tightening force is reliable, the motor cooling effect is high, and the heat exchange effect is improved, and the slot on the driving gear for a screwdriver facilitates the operation process and also improves the operational convenience in the later maintenance process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] This specification includes the following drawings, which show the following contents:

[0018] Figure 1 It is a structural schematic diagram of a cooling system of an integrated connector motor of the present invention;

[0019] Figure 2 is a schematic structural diagram of a first guide plate;

[0020] Figure 3 is a schematic structural diagram of a second guide plate;

[0021] Figure 4-1 to Figure 4-3 is a schematic diagram of the structure of the mounting seat and the fastening belt;

[0022] Figure 5 is a schematic diagram of the structure of the fastening belt;

[0023] Figure 6-1 and Figure 6-2 It is a schematic diagram of the structure of the upper cover;

[0024] Figure 7-1 and Figure 7-2 is a structural schematic diagram of a fastening bracket;

[0025] Figure 8-1 and Figure 8-2 It is a structural diagram of the driving gear;

[0026] Figure 9-1 and Figure 9-2 It is a structural diagram of the transmission gear;

[0027] Fig.10 It is a schematic diagram of the structure of the helical worm gear;

[0028] Fig.11 It is a schematic diagram of the structure of the rack and the helical worm gear;

[0029] Fig.12 It is a structural diagram of the radiator.

[0030] The markings in the figure are: 1, motor; 11, external connector; 12, motor housing; 13, flange; 14, mounting hole; 2, first guide plate; 21, water inlet pipe; 22, hinge; 23, mounting position; 24, water inlet cavity; 3, second guide plate; 31, water outlet pipe; 32, water outlet cavity; 33, slot; 4, mounting seat; 41, upper cover; 411, through hole; 412, arc-shaped limit plate; 42, fastening bracket; 421, mounting slot; 422, rotating shaft; 423 , fixing hole; 43, driving gear; 431, boss; 432, slot; 44, transmission gear; 441, bevel gear; 45, helical worm; 451, bevel gear; 5, fastening belt; 51, rack; 52, limit rod; 6, water pump; 61, water pump outlet; 62, water pump wiring harness connector; 7, radiator; 71, fixing bracket; 72, radiator inlet; 73, display screen; 74, control button; 8, connecting straight pipe; 9, connecting elbow pipe; 10, cooling fan. DETAILED DESCRIPTION

[0031] The specific implementation methods of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and facilitating their implementation.

[0032] like Figure 1 As shown, the cooling system of the motor with integrated connector, the motor 1 includes a motor housing 12, a guide plate is arranged outside the motor housing 12, an external connector 11 is arranged at the bottom of the motor 1, and a guide plate fastening structure is arranged above the external connector 11. The motor 1 body is cylindrical throughout, and a flange 13 is arranged on the top. Two external mounting holes 14 are arranged on the flange 13 on both sides of the output spline shaft for connecting with related components. The guide plate is arc-shaped as a whole and fits on the outside of the motor housing 12. The guide plate adopts a two-half structure, and the contact end of the guide plate is connected by a hinge 22. The interval part of the guide plate is connected by a fastening belt 5. The fastening belt 5 is arranged above the external connector 11, which not only plays a role in fixing the guide plate, but also avoids the spatial interference above the external connector 11.

[0033] like Figures 1 to 3As shown, the guide plate includes a first guide plate 2 and a second guide plate 3, the first guide plate 2 and the second guide plate 3 are hinged, and a gap is provided between the first guide plate 2 and the second guide plate 3, and the gap is located above the external connector 11; the guide plate fastening structure includes a fastening belt 5, and the two ends of the fastening belt 5 are respectively arranged on the first guide plate 2 and the second guide plate 3. The first guide plate 2 and the second guide plate 3 are designed with a hinge 22, and the two are hinged by the hinge 22. There is a circle of sealing gasket around the contact end of the two to ensure air tightness; when installing, the first guide plate 2 and the second guide plate 3 can be opened at a certain angle and then installed on the motor housing 12 from the radial direction, avoiding the stability of the separate independent installation and the difficulty of assembly, improving the assembly efficiency, and compared with the existing coolant jacket using the sleeve-type installation method, the installation difficulty is greatly reduced. The fastening belt 5, the first guide plate 2 and the second guide plate 3 are all arc-shaped structures, thus forming an annular cooling system for the motor 1. The inner side of the first guide plate 2 and the inner side of the second guide plate 3 are both fitted on the motor housing 12. The above structure is used to adapt to the shape of the motor housing 12 to ensure that the two fit tightly and improve the stability and heat exchange effect after installation. Among them, the guide plate is 3D printed with aluminum alloy, and the material is AlSi10Mg. The water inlet cavity 24 and the water outlet cavity 32 are designed inside, which is conducive to the full entry of the coolant and improves the cooling efficiency. The fastening belt 5 is a steel belt with high structural strength, not easy to break, and can effectively transmit tension.

[0034] like Figure 4-1 to Figure 5 As shown, a rack 51 and a limiting rod 52 are respectively provided at both ends of the fastening belt 5, a slot 33 is provided at the end of the second guide plate 3, and the limiting rod 52 is located at the end of the slot 33. A mounting seat 4 is provided at the end of the first guide plate 2, and a driving gear 43 is provided in the mounting seat 4. The driving gear 43 is meshed with a transmission gear 44. A bevel gear 441 is fixedly connected to the transmission gear 44, and a helical worm 45 is provided on the inner side. The rack 51 is meshed with the helical worm 45, and a bevel gear 451 is fixedly connected to one end of the helical worm 45, and the bevel gear 451 is meshed with the bevel gear 441. In the above structure, the meshing transmission of the driving gear 43 and the transmission gear 44 will synchronously drive the rotation of the bevel gear 441, and the bevel gear 441 will synchronously drive the rotation of the helical worm 45 through the meshing transmission with the bevel gear 451. The helical worm 45 realizes the linear movement of the fastening belt 5 through the meshing transmission with the rack 51 on the fastening belt 5. The other end of the fastening belt 5 is located at the end of the slot 33. The fastening belt 5 transmits the tension to tighten the guide plate and make it close to the motor housing 12. Since one end of the fastening belt 5 is meshed with the helical worm 45 through the rack 51, the two have a self-locking effect and are not easy to loosen. The guide plate will not move relative to each other. There is no gap between the inner side of the guide plate and the motor housing 12, which ensures the stability of the installation position of the guide plate and the reliable heat exchange effect. Among them, the slot 33 is used to install one end of the fastening belt 5, and its end is round, which is used to place the limit rod 52. When the limit rod 52 is pressed, it will transmit tension.

[0035] like Figure 1 and Fig.12 As shown, a radiator 7 is provided below the motor 1, a cooling fan 10 is provided at the bottom of the radiator 7, a water pump 6 is provided at one end of the radiator 7, the water pump 6 is connected to the first guide plate 2, and the other end of the radiator 7 is connected to the second guide plate 3. The above structure realizes the circulation of the coolant and the continuous cooling of the motor 1, wherein the water pump 6 provides power for the flow of the coolant, the radiator 7 and the cooling fan 10 are used to cool down the coolant after heat exchange, the water pump 6, the radiator 7 and the cooling fan 10 are all located at the bottom of the motor 1, occupying a small space, with a compact structure, and will not affect the function of the motor 1. A water pump harness connector 62 is also provided at one end of the water pump 6, and the water pump harness connector 62 energizes and controls the motor 1 in the water pump 6, and the other end of the water pump 6 is fixed to the radiator 7 by bolts; a display screen 73 is provided in the middle of one side of the radiator 7 to display basic information, such as the current temperature of the motor 1 and the set temperature, etc., and a control button 74 is provided on one side of the display screen 73 to control the power of the radiator 7, with three control nodes: left rotation, right rotation and downward pressing. The guide plate is installed as follows: fix the motor 1 to the fixed bracket 71 by bolts, open the guide plate to a certain angle through the hinge 22, and install it on the motor housing 12 from the radial direction. Connect the water inlet and the water outlet through the connecting straight pipe 8 and the connecting elbow pipe 9 respectively to achieve a preliminary positioning effect. Use a flat-head screwdriver to rotate the driving gear 43. Through the meshing transmission of the driving gear 43 and the transmission gear 44 and the meshing transmission of the helical worm 45 to the rack 51 on the fastening belt 5, the fastening belt 5 is tightened. The two fastening belts 5 are tightened synchronously to make the guide plate close to the motor housing 12.

[0036] like Figure 4-1 to Figure 7-2 As shown, the mounting base 4 includes a fastening bracket 42 and an upper cover 41. A rotating shaft 422 is provided in the middle of the fastening bracket 42. The middle of the driving gear 43 is sleeved on the rotating shaft 422. An arc-shaped limiting plate 412 is provided on the inner side of the upper cover 41. The arc-shaped limiting plate 412 is located outside the driving gear 43 and the transmission gear 44. A mounting groove 421 is provided on the fastening bracket 42. The mounting groove 421 corresponds to the arc-shaped limiting plate 412. The driving gear 43 and the transmission gear 44 are both located between the mounting groove 421 and the arc-shaped limiting plate 412, forming an axial and radial limiting effect on the driving gear 43 and the transmission gear 44. Under the protection of the upper cover 41 and the fastening bracket 42, they are isolated from the outside and will not affect the normal function of the internal transmission components.

[0037] like Figure 6-1 and Figure 6-2As shown, a through hole 411 is provided in the middle of the upper cover 41, and a boss 431 is provided in the middle of the driving gear 43. The boss 431 extends from the through hole 411, and a slot 432 is provided on the boss 431. The slot 432 corresponds to a slotted screwdriver, which is convenient for the operator to use a screwdriver to twist the driving gear 43 and drive the tightening and loosening of the fastening belt 5. This design is convenient for controlling the force. The slot 432 can also be changed to a cross shape or other shapes, and only needs to use a corresponding screwdriver; during the regular maintenance of the motor 1, if the motor 1 and the guide plate are loose, the operator can quickly reset the guide plate with a screwdriver, eliminating the disassembly and assembly process and improving the maintenance efficiency.

[0038] like Fig.12 As shown, the water pump 6 includes a water pump outlet 61, and the radiator 7 includes a radiator inlet 72; the first guide plate 2 is fixedly connected with a water inlet pipe 21 on the outside, and the water inlet pipe 21 and the water pump outlet 61 are connected by a connecting straight pipe 8; the second guide plate 3 is fixedly connected with a water outlet pipe 31 on the outside, and the water outlet pipe 31 and the radiator inlet 72 are connected by a connecting elbow pipe 9. The connecting straight pipe 8 and the connecting elbow pipe 9 have a preliminary positioning effect on the installation of the guide plate, so that the water inlet pipe 21 and the water pump 6 are connected by the connecting straight pipe 8, avoiding the use of an integral molding or fixed connection method. Such a design facilitates the assembly and disassembly of the guide plate, and the water outlet pipe 31 is connected to the water inlet of the radiator 7 through the connecting elbow pipe 9, which meets the installation requirements of the two axes not being colinear.

[0039] like Figure 4-1 to Figure 4-3 As shown, the transmission gears 44 are located on both sides of the driving gear 43, and the fastening belts 5 are arranged in pairs. The driving gear 43 synchronously drives the two transmission gears 44 to rotate, thereby driving the two fastening belts 5 to move synchronously. Accordingly, the clamping slot 33 is provided with two upper and lower slots, which is conducive to maintaining the accuracy of the direction of the pulling force applied to the guide plate.

[0040] like Figure 4-1 to Figure 7-2 As shown, the fastening bracket 42 and the upper cover 41 are fixed by snap connection, and the ends of the fastening bracket 42 are evenly distributed with fixing holes 423. The fixing holes 423 are used to install bolts, and a slot is set on the first guide plate 2 for installing the fastening bracket 42. The two are connected by bolts, so that the fastening bracket 42 is firmly installed; the fastening bracket 42 and the upper cover 41 are connected by snap buckles, and no connector is needed, which is convenient for installation.

[0041] like Fig.12As shown, a fixing bracket 71 is provided on the radiator 7, and the fixing bracket 71 is an L-shaped structure. There are three fixing brackets 71, and the bottom of the motor 1 is connected to the top of the fixing bracket 71. There are three bolt fixing holes 423 of the motor 1 controller at the bottom of the motor 1, which correspond to the three fixing brackets 71. The fixing bracket 71 is designed to be L-shaped, so that the installation direction of the bolt is in the vertical direction, thereby reducing the difficulty of assembly. Multiple fixing brackets 71 ensure the stability of the position of the motor 1, thereby ensuring the stability of the output of the motor 1 and the firm connection of the connected connector.

[0042] The cooling process of the motor 1 is as follows: the water pump 6 is started to pump the coolant into the inner cavity of the first guide plate 2 along the connecting straight pipe 8 and the water inlet, the coolant enters the second guide plate 3 along the first guide plate 2, the coolant exchanges heat and cools down in the motor housing 12 in the guide plate, and after the heat exchange, the coolant enters the radiator 7 along the water outlet and the connecting elbow 9, and the cooling fan 10 dissipates the heat of the coolant after the heat exchange to a suitable temperature. After the coolant cools down, it is pumped into the inner cavity of the guide plate again by the water pump 6, and this cycle is repeated to achieve continuous performance heat dissipation and cooling of the motor 1, and to ensure the safety performance and reliable working efficiency of the motor 1 system for a long time.

[0043] The cooling system of the integrated connector motor is provided with a guide plate outside the motor housing 12 to exchange heat with the motor housing 12. The coolant is circulated under the drive and heat dissipation of the water pump 6 and the radiator 7, so as to meet the long-term stable operation of the motor 1. The guide plates are hingedly connected, which not only facilitates the installation process, but also a certain interval is designed between the two to achieve space avoidance for the external connector 11 on the motor 1, and the structural design is reasonable. The guide plate is installed and fitted on the motor housing 12 through the fastening belt 5. The structural design is ingenious. The loosening and tightening process of the guide plate is realized through multiple gear meshing transmissions and worm transmissions, which ensures that the guide plate and the motor housing 12 are closely fitted, the tightening force is reliable, the cooling effect of the motor 1 is high, and the heat exchange effect is improved. The slot 432 for the screwdriver on the driving gear 43 facilitates the operation process and also improves the convenience of operation in the later maintenance process.

[0044] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A cooling system for a motor with an integrated connector, characterized in that: The motor (1) comprises a motor housing (12), a guide plate is provided on the outside of the motor housing (12), an external connector (11) is provided on the bottom of the motor (1), and a guide plate fastening structure is provided above the external connector (11).

2. The cooling system of the connector-integrated motor according to claim 1, characterized in that: The guide plate comprises a first guide plate (2) and a second guide plate (3), the first guide plate (2) and the second guide plate (3) are hinged, a space is provided between the first guide plate (2) and the second guide plate (3), and the space is located above the external connector (11); the guide plate fastening structure comprises a fastening belt (5), and two ends of the fastening belt (5) are respectively provided on the first guide plate (2) and the second guide plate (3).

3. The cooling system of the connector-integrated motor according to claim 2, characterized in that: The two ends of the fastening belt (5) are respectively provided with a rack (51) and a limiting rod (52); the end of the second guide plate (3) is provided with a slot (33); the limiting rod (52) is located at the end of the slot (33); the end of the first guide plate (2) is provided with a mounting seat (4); a driving gear (43) is provided inside the mounting seat (4); the driving gear (43) is meshedly connected with a transmission gear (44); a bevel gear (441) is fixedly connected to the transmission gear (44); a helical worm (45) is provided on the inner side; the rack (51) is meshed with the helical worm (45); one end of the helical worm (45) is fixedly connected with a bevel gear (451); the bevel gear (451) is meshed with the bevel gear (441).

4. The cooling system of the connector-integrated motor according to claim 2 or 3, characterized in that: A radiator (7) is provided below the motor (1), a cooling fan (10) is provided at the bottom of the radiator (7), a water pump (6) is provided at one end of the radiator (7), the water pump (6) is connected to the first guide plate (2), and the other end of the radiator (7) is connected to the second guide plate (3).

5. The cooling system of the connector-integrated motor according to claim 4, characterized in that: The mounting seat (4) comprises a fastening bracket (42) and an upper cover (41); a rotating shaft (422) is provided in the middle of the fastening bracket (42); the middle of the driving gear (43) is sleeved on the rotating shaft (422); an arc-shaped limiting plate (412) is provided on the inner side of the upper cover (41); the arc-shaped limiting plate (412) is located outside the driving gear (43) and the transmission gear (44); and a mounting groove (421) is provided on the fastening bracket (42); the mounting groove (421) corresponds to the arc-shaped limiting plate (412).

6. The cooling system of the connector-integrated motor according to claim 5, characterized in that: A through hole (411) is provided in the middle of the upper cover (41), a boss (431) is provided in the middle of the driving gear (43), the boss (431) extends out of the through hole (411), and a straight groove (432) is provided on the boss (431).

7. The cooling system of the connector-integrated motor according to claim 6, characterized in that: The water pump (6) comprises a water pump outlet (61), and the radiator (7) comprises a radiator inlet (72); a water inlet pipe (21) is fixedly connected to the outside of the first guide plate (2), and a connecting straight pipe (8) is connected between the water inlet pipe (21) and the water pump outlet (61); a water outlet pipe (31) is fixedly connected to the outside of the second guide plate (3), and a connecting elbow pipe (9) is connected between the water outlet pipe (31) and the radiator inlet (72).

8. The cooling system of the connector-integrated motor according to claim 3, characterized in that: The transmission gear (44) is located on both sides of the driving gear (43), and the fastening belts (5) are arranged in pairs.

9. The cooling system of the connector-integrated motor according to claim 5, characterized in that: The fastening bracket (42) and the upper cover (41) are fixed by snapping, and the end of the fastening bracket (42) is evenly distributed with fixing holes (423).

10. The cooling system of the connector-integrated motor according to claim 4, characterized in that: The radiator (7) is provided with a fixing bracket (71), the fixing bracket (71) is an L-shaped structure, three fixing brackets (71) are provided, and the bottom of the motor (1) is connected to the top of the fixing bracket (71).

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