Cooling system of integrated connector motor

Abstract

The utility model 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] This utility model belongs to the field of motor cooling, specifically, it relates to a cooling system for motors with integrated connectors. Background Technology

[0002] To ensure long-term motor operation, a cooling mechanism is generally designed for the motor. For motors with integrated external connectors, this reduces wiring harnesses and improves the reliability of the control system. However, since the external connectors are close to the motor body, the cooling system needs to avoid this area. Current motor cooling water jackets are generally conventionally designed and have simple installation methods, but they cannot avoid the external connectors in terms of space, causing interference between the two and making installation impossible. Since they can only be fitted onto the outside of the motor housing, the fit is poor, the motor cooling effect is limited, the fastening force is weak, multiple auxiliary brackets are needed for fixation, resulting in an excessively large motor size, affecting heat dissipation performance, and the replacement process after damage is cumbersome and complicated. Furthermore, long-term use can easily cause them to loosen, leading to reduced cooling performance and affecting the long-term stable operation of the motor.

[0003] Utility model patent CN219041531U, published on May 16, 2023, discloses a copper tube cooling motor housing structure. This structure includes a motor housing with an adjustable number of coolant tubes wound around its outer periphery, the coolant tubes contacting the outer wall of the motor housing. Coolant is injected into the coolant tubes to remove heat from the motor housing during its flow. However, this copper tube cooling motor housing structure does not solve the aforementioned technical problem. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a cooling system for an integrated connector motor that achieves space avoidance for external plugs, high cooling efficiency, and reliable baffle fastening.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] The cooling system of the integrated connector motor includes a motor housing, an external guide plate on the outside of the motor housing, an external connector on the bottom of the motor, and a guide plate fastening structure above the external connector.

[0007] The guide plate includes a first guide plate and a second guide plate, which are hinged together and have a gap between them, which is located above the external connector; the guide plate fastening structure includes a fastening band, with both ends of the fastening band respectively disposed on the first guide plate and the second guide plate.

[0008] The fastening band has a rack and a limiting rod at both ends, the second guide plate has a slot at its end, the limiting rod is located at the end of the slot, the first guide plate has a mounting base at its end, the mounting base has a drive gear inside, the drive gear is meshed with a transmission gear, the transmission gear is fixedly connected with bevel teeth, the mounting base has a helical worm gear inside, the rack meshes with the helical worm gear, one end of the helical worm gear is fixedly connected with a bevel gear, the bevel gear meshes with the bevel teeth.

[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 base includes a fastening bracket and a top cover. The fastening bracket has a rotating shaft in the middle, and the driving gear is sleeved on the rotating shaft in the middle. The top cover has an arc-shaped limiting plate on its inner side, and the arc-shaped limiting plate is located outside the driving gear and the transmission gear. The fastening bracket has a mounting groove, and the mounting groove corresponds to the arc-shaped limiting plate.

[0011] The upper cover has a through hole in the middle, and the drive gear has a boss in the middle. The boss extends out of the through hole and has a slot.

[0012] The water pump includes a water pump outlet, and the radiator includes a radiator inlet; an inlet pipe is fixedly connected to the outside of the first guide plate, and the inlet pipe is connected to the water pump outlet by a straight pipe; an outlet pipe is fixedly connected to the outside of the second guide plate, and the outlet pipe is connected to the radiator inlet by a bend pipe.

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

[0014] The fastening bracket and the top cover are fixed by snap-fit, and the fastening bracket has evenly distributed fixing holes at its end.

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

[0016] The technical advantages of this utility model are as follows: The integrated connector motor cooling system of this utility model features guide plates on the outside of the motor housing for heat exchange. The coolant circulates under the drive and cooling effect of the water pump and radiator, ensuring long-term stable operation of the motor. The guide plates are hinged, facilitating installation and allowing for space avoidance of external connectors on the motor, resulting in a reasonable structural design. The guide plates are securely attached to the motor housing via fastening straps. The ingenious design utilizes multiple gear meshing and worm gear transmissions to achieve the loosening and tightening of the guide plates, ensuring a tight fit and reliable fastening force. This results in high motor cooling efficiency and improved heat exchange. A slotted groove on the drive gear for screwdriver use facilitates operation and improves ease of maintenance in later stages. Attached Figure Description

[0017] This manual includes the following figures, which illustrate the following:

[0018] Figure 1 This is a schematic diagram of the cooling system of the integrated connector motor of this utility model;

[0019] Figure 2 This is a schematic diagram of the first guide vane;

[0020] Figure 3 This is a schematic diagram of the second guide vane;

[0021] Figures 4-1 to 4-3 This is a structural diagram of the mounting base and fastening strap;

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

[0023] Figure 6-1 and Figure 6-2 This is a structural diagram of the top cover;

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

[0025] Figure 8-1 and Figure 8-2 This is a schematic diagram of the drive gear;

[0026] Figure 9-1 and Figure 9-2 This is a schematic diagram of the transmission gear structure;

[0027] Figure 10 This is a schematic diagram of the structure of a helical worm gear;

[0028] Figure 11 This is a schematic diagram of the structure of a rack and pinion gear meshing with a helical worm gear;

[0029] Figure 12 This is a schematic diagram of the radiator structure.

[0030] The diagram is labeled as follows: 1. Motor; 11. External connector; 12. Motor housing; 13. Flange; 14. Mounting hole; 2. First guide plate; 21. Inlet pipe; 22. Hinge; 23. Mounting position; 24. Inlet cavity; 3. Second guide plate; 31. Outlet pipe; 32. Outlet cavity; 33. Slot; 4. Mounting base; 41. Top cover; 411. Through hole; 412. Arc-shaped limiting plate; 42. Fastening bracket; 421. Mounting groove; 422. Shaft; 423. 43. Fixing hole; 44. Drive gear; 45. Boss; 46. Slot; 47. Transmission gear; 48. Bevel gear; 49. Helical worm gear; 40. Bevel gear; 50. Fastening band; 51. Rack; 52. Limiting 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 bend; 10. Cooling fan. Detailed Implementation

[0031] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of this utility model, and to facilitate its implementation.

[0032] like Figure 1 As shown, the cooling system of the integrated connector motor includes a motor housing 12, a guide plate on the outside of the motor housing 12, an external connector 11 at the bottom of the motor 1, and a guide plate fastening structure above the external connector 11. The motor 1 body is cylindrical, with a flange 13 at the top. The flange 13 has two external mounting holes 14 on both sides of the output spline shaft for connecting with related components. The guide plate is arc-shaped and fits against the outside of the motor housing 12. The guide plate adopts a two-half structure, with the contact ends of the guide plate connected by hinges 22. The spaced parts of the guide plate are connected by fastening straps 5. The fastening straps 5 are arranged above the external connector 11, which not only fixes the guide plate but also avoids 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, which are hinged together. A gap is provided between the first guide plate 2 and the second guide plate 3, located above the external connector 11. The guide plate fastening structure includes a fastening band 5, with both ends of the fastening band 5 respectively located 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, which forms a hinge connection between them. A sealing gasket is provided around the contact end of the two to ensure airtightness. During installation, the first guide plate 2 and the second guide plate 3 can be opened at a certain angle and installed radially on the motor housing 12, avoiding the instability of separate independent installation and improving assembly efficiency. Compared with the existing coolant jacket using a sleeve-type installation method, the installation difficulty is greatly reduced. The fastening band 5, the first guide plate 2, and the second guide plate 3 are all arc-shaped structures, thus forming a ring-shaped cooling system for the motor 1. The inner sides of the first guide plate 2 and the second guide plate 3 are both attached to the motor housing 12. This structure is designed to fit the shape of the motor housing 12, ensuring a tight fit and improving stability and heat exchange efficiency after installation. The guide plates are 3D printed from aluminum alloy (AlSi10Mg), and each has an inlet cavity 24 and an outlet cavity 32 designed inside to facilitate the full entry of coolant and improve cooling efficiency. The fastening band 5 is a steel band with high structural strength, is not easily broken, and can effectively transmit tensile force.

[0034] like Figures 4-1 to 5 As shown, the fastening band 5 has a rack 51 and a limiting rod 52 at both ends, the second guide plate 3 has a groove 33 at the end, the limiting rod 52 is located at the end of the groove 33, the first guide plate 2 has a mounting base 4 at the end, the mounting base 4 has a drive gear 43 inside, the drive gear 43 is meshed with a transmission gear 44, the transmission gear 44 is fixedly connected with a bevel gear 441, the mounting base 4 has a helical worm gear 45 inside, the rack 51 meshes with the helical worm gear 45, one end of the helical worm gear 45 is fixedly connected with a bevel gear 451, the bevel gear 451 meshes with the bevel gear 441. In the above structure, the meshing transmission of the drive gear 43 and the transmission gear 44 synchronously drives the rotation of the bevel gear 441. The bevel gear 441, through meshing with the bevel gear 451, synchronously drives the rotation of the helical worm gear 45. The helical worm gear 45, through meshing with the rack 51 on the fastening band 5, realizes the linear movement of the fastening band 5. The other end of the fastening band 5 is located at the end of the slot 33. The fastening band 5 transmits tension to tighten the guide plate and make it stick tightly to the motor housing 12. Since one end of the fastening band 5 meshes with the helical worm gear 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 the motor housing 12, and there is no gap between the inner side of the guide plate and the motor housing 12, ensuring the stability of the installation position of the guide plate and the reliable heat exchange effect. The slot 33 is used to install one end of the fastening band 5. Its end is round and is used to place the limiting rod 52. When the limiting rod 52 abuts, it transmits tension.

[0035] like Figure 1 and Figure 12 As shown, a radiator 7 is located below the motor 1, and a cooling fan 10 is located at the bottom of the radiator 7. A water pump 6 is located at one end of the radiator 7, and the water pump 6 is connected to the first guide plate 2. The other end of the radiator 7 is connected to the second guide plate 3. The above structure realizes the circulation of coolant and achieves continuous cooling of the motor 1. The water pump 6 provides power for the flow of coolant, and the radiator 7 and cooling fan 10 are used to cool the coolant after heat exchange. The water pump 6, radiator 7 and cooling fan 10 are all located at the bottom of the motor 1, occupying little space and having a compact structure, without affecting the function of the motor 1. A water pump wiring harness connector 62 is also provided at one end of the water pump 6. The water pump wiring harness connector 62 powers and controls the motor 1 inside the water pump 6. The other end of the water pump 6 is fixed to the radiator 7 with bolts. A display screen 73 is set 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. 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 down press. The guide plate is installed as follows: the motor 1 is fixed to the fixed bracket 71 with bolts, the guide plate is opened to a certain angle by the hinge 22 and installed radially on the motor housing 12, the inlet and outlet are connected by the connecting straight pipe 8 and the connecting bend pipe 9 respectively to achieve the initial positioning effect, the drive gear 43 is turned by using a flathead screwdriver, the drive gear 43 and the transmission gear 44 mesh and the helical worm gear 45 meshes with the rack 51 on the fastening belt 5 to achieve the tightening of the fastening belt 5, the two fastening belts 5 tighten synchronously to make the guide plate stick tightly to the motor housing 12.

[0036] like Figures 4-1 to 7-2 As shown, the mounting base 4 includes a fastening bracket 42 and a top cover 41. A rotating shaft 422 is located in the middle of the fastening bracket 42, and the driving gear 43 is sleeved on the rotating shaft 422. An arc-shaped limiting plate 412 is located on the inner side of the top cover 41, outside the driving gear 43 and the transmission gear 44. A mounting groove 421 is provided on the fastening bracket 42, corresponding to the arc-shaped limiting plate 412. Both the driving gear 43 and the transmission gear 44 are 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. Furthermore, protected by the top cover 41 and the fastening bracket 42, they are isolated from the outside environment and will not affect the normal function of the internal transmission components.

[0037] like Figure 6-1 and Figure 6-2As shown, the upper cover 41 has a through hole 411 in the middle, and the drive gear 43 has a boss 431 in the middle. The boss 431 extends from the through hole 411 and has a slot 432 on it. The slot 432 corresponds to a flathead screwdriver, which makes it easy for the operator to use a screwdriver to turn the drive gear 43 to drive the tightening and loosening of the fastening band 5. This design makes it easy to control the force. The slot 432 can also be changed to a cross-shaped or other shapes, as long as the corresponding screwdriver is used. During the regular maintenance of the motor 1, if the motor 1 becomes loose from the guide plate, the operator can quickly reset the guide plate with a screwdriver, saving the disassembly and assembly process and improving maintenance efficiency.

[0038] like Figure 12 As shown, the water pump 6 includes a water pump outlet 61, and the radiator 7 includes a radiator inlet 72. A water inlet pipe 21 is fixedly connected to the outer side of the first guide plate 2, and a connecting straight pipe 8 connects the water inlet pipe 21 to the water pump outlet 61. A water outlet pipe 31 is fixedly connected to the outer side of the second guide plate 3, and a connecting elbow 9 connects the water outlet pipe 31 to the radiator inlet 72. The connecting straight pipe 8 and the connecting elbow 9 provide initial positioning for the guide plate installation, allowing the water inlet pipe 21 and the water pump 6 to be connected by the connecting straight pipe 8, avoiding the use of an integral molding or fixed connection. This design facilitates the assembly and disassembly of the guide plate. The water outlet pipe 31 is connected to the radiator 7 inlet via the connecting elbow 9, satisfying the requirement that the axes of the two are not collinear.

[0039] like Figures 4-1 to 4-3 As shown, the transmission gears 44 are located on both sides of the drive gear 43, and the fastening belts 5 are arranged in pairs. The drive gear 43 synchronously drives the two transmission gears 44 to rotate, which in turn drives the two fastening belts 5 to move synchronously. Correspondingly, the slots 33 are provided in two positions, one above the other, which helps to maintain the accuracy of the direction of the pulling force applied to the guide plate.

[0040] like Figures 4-1 to 7-2 As shown, the fastening bracket 42 and the upper cover 41 are fixed by snap-fit, and the fastening bracket 42 has evenly distributed fixing holes 423 at its end. The fixing holes 423 are used to install bolts, and slots are provided 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-fit, eliminating the need for connectors and facilitating installation.

[0041] like Figure 12As shown, the radiator 7 is equipped with a fixing bracket 71, which 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. The bottom of the motor 1 has three bolt fixing holes 423 for the motor 1 controller, which correspond to the three fixing brackets 71. The fixing brackets 71 are designed in an L-shape to ensure that the bolt installation direction is vertical, thereby reducing the assembly difficulty. The multiple fixing brackets 71 ensure the stability of the position of the motor 1, thereby ensuring the stable output of the motor 1 and the secure insertion of the connected connectors.

[0042] The cooling process of motor 1 is as follows: water pump 6 starts and pumps coolant into the inner cavity of the first guide plate 2 through the connecting straight pipe 8 and the inlet. The coolant then enters the second guide plate 3 through the first guide plate 2. The coolant exchanges heat with the motor housing 12 in the guide plate and cools down. After heat exchange, the coolant enters the radiator 7 through the outlet and the connecting bend pipe 9. The cooling fan 10 dissipates heat from the cooled coolant to a suitable temperature. After cooling down, the coolant is pumped back into the inner cavity of the guide plate by water pump 6. This cycle repeats to achieve continuous heat dissipation and cooling of motor 1, ensuring the long-term safety performance and reliable working efficiency of the motor 1 system.

[0043] The cooling system of this integrated connector motor has a guide plate on the outside of the motor housing 12 for heat exchange. The coolant circulates under the drive and heat dissipation of the water pump 6 and radiator 7, ensuring the long-term stable operation of the motor 1. The guide plates are hinged, which not only facilitates the installation process, but also allows for space avoidance for the external connectors 11 on the motor 1 due to the spacing between them. The structure is reasonably designed. The guide plates are installed and attached to the motor housing 12 by fastening straps 5. The structure is ingeniously designed, and the loosening and tightening of the guide plates are achieved through multiple gear meshing and worm gear transmission, ensuring a tight fit between the guide plates and the motor housing 12 and reliable fastening force. This results in high cooling efficiency for the motor 1 and improved heat exchange. The slotted groove 432 on the drive gear 43 for screwdriver use facilitates the operation process and improves the ease of operation during later maintenance.

[0044] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A cooling system for an integrated connector motor, characterized in that: The motor (1) comprises a motor shell (12), the motor shell (12) is externally provided with a flow guide plate, the bottom of the motor (1) is provided with an external connector (11), and the upper side of the external connector (11) is provided with a flow guide plate fastening structure; the flow guide plate comprises a first flow guide plate (2) and a second flow guide plate (3), the first flow guide plate (2) and the second flow guide plate (3) are hinged, a gap is formed between the first flow guide plate (2) and the second flow guide plate (3), and the gap is located above the external connector (11); the flow guide plate fastening structure comprises a fastening belt (5), and the two ends of the fastening belt (5) are respectively arranged on the first flow guide plate (2) and the second flow guide plate (3).

2. The cooling system for an integrated connector motor according to claim 1, wherein: 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 flow guide plate (3) is provided with a clamping groove (33), the limiting rod (52) is located at the end of the clamping groove (33), the end of the first flow guide plate (2) is provided with a mounting seat (4), the mounting seat (4) is internally provided with a driving gear (43), the driving gear (43) is in meshing connection with a transmission gear (44), the transmission gear (44) is fixedly connected with a bevel gear (441) in a sleeved manner, the inner side of the mounting seat (4) is provided with a helical worm (45), the rack (51) is in meshing connection with the helical worm (45), and one end of the helical worm (45) is fixedly connected with a bevel gear (451); the bevel gear (451) is in meshing connection with the bevel gear (441).

3. The cooling system for an integrated connector motor according to claim 2, wherein: The motor (1) is provided below with a radiator (7), the bottom of the radiator (7) is provided with a cooling fan (10), one end of the radiator (7) is provided with a water pump (6), the water pump (6) is connected with the first flow guide plate (2), and the other end of the radiator (7) is connected with the second flow guide plate (3).

4. The cooling system for an integrated connector motor of claim 3, wherein: The mounting seat (4) comprises a fastening support (42) and an upper cover (41), the middle part of the fastening support (42) is provided with a rotating shaft (422), the middle part of the driving gear (43) is sleeved on the rotating shaft (422), and the inner side of the upper cover (41) is provided with an arc-shaped limiting plate (412); the arc-shaped limiting plate (412) is located on the outer side of the driving gear (43) and the transmission gear (44); the fastening support (42) is provided with a mounting groove (421), and the mounting groove (421) corresponds to the arc-shaped limiting plate (412).

5. The cooling system for an integrated connector motor of claim 4, wherein: The middle part of the upper cover (41) is provided with a through hole (411), the middle part of the driving gear (43) is provided with a boss (431), the boss (431) extends out of the through hole (411), and a slot (432) is arranged on the boss (431).

6. The cooling system for an integrated connector motor according to claim 5, wherein: The water pump (6) comprises a water pump outlet (61), the radiator (7) comprises a radiator inlet (72), the outer side of the first flow guide plate (2) is fixedly connected with a water inlet pipe (21), the water inlet pipe (21) is connected with the water pump outlet (61) in communication through a straight pipe (8), the outer side of the second flow guide plate (3) is fixedly connected with a water outlet pipe (31), and the water outlet pipe (31) is connected with the radiator inlet (72) in communication through a bent pipe (9).

7. The cooling system for an integrated connector motor of claim 2, wherein: The transmission gear (44) is located on both sides of the driving gear (43), and the fastening belts (5) are arranged in pairs.

8. The cooling system for an integrated connector motor of claim 4, wherein: The fastening support (42) and the upper cover (41) are fixed by clamping, and the fastening support (42) is uniformly provided with fixing holes (423) at the ends.

9. The cooling system for an integrated connector motor of claim 3, wherein: The heat sink (7) is provided with a fixing support (71), the fixing support (71) is of L-shaped structure, the fixing support (71) is provided with three, and the bottom of the motor (1) is connected with the top end of the fixing support (71).

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