Motor stator bus bar module convenient for heat dissipation

Abstract

The utility model relates to the technical field of bus bars, and discloses a motor stator bus bar module convenient for heat dissipation, the motor stator bus bar module comprises a motor, a mounting ring, bus bars and a heat dissipation assembly, the heat dissipation assembly comprises an air guide seat and an air guide pipe, the mounting ring is located in a motor shell of the motor, and the bus bars are installed on the mounting ring; a heat conduction opening is formed in a motor shell of the motor close to the mounting ring; the air guide seat is arranged on the motor shell at a position close to the heat conduction port; the air inlet end of the air guide pipe communicates with the interior of a motor shell of the motor through the air guide base, and the air outlet end of the air guide pipe is located at the position close to the air outlet end of the motor. The application has the effect of conveniently reducing the temperature of the confluence.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of bus bars, in particular to a motor stator bus bar module facilitating heat dissipation. BACKGROUND

[0002] The motor stator bus bar, also known as a bus ring or a bus bar, is an important component of a motor stator and mainly functions to introduce current from a power source into a stator winding to form a passage of a stator coil. It is similar to a wire and connects a power source and an electrical device to ensure that current can be effectively transmitted.

[0003] A bus bar module disclosed in a Chinese patent with the authorized publication number CN215989555U and the authorized publication date of 2021-12-31 comprises a mounting ring and a plurality of bus bars embedded in the mounting ring. Each bus bar comprises a connecting portion, a branch portion and an embedded foot which are integrally arranged. The other side of the mounting ring is provided with an injection molding part. A plurality of drainage inserts are arranged in the injection molding part. The plurality of drainage inserts correspond to the plurality of embedded feet and are in close contact with the embedded feet. The plurality of connecting portions are arranged as a first ring part, a second ring part and a third ring part. One end of the first ring part is integrally connected with a bending piece. The bending piece is arranged obliquely and forms an included angle with the end of the first ring part.

[0004] In the working process of the above-mentioned bus bar module, the bus bar is prone to generate heat, thereby causing the internal components of the motor to be heated. The internal components of the motor are prone to be aged quickly in a high-temperature environment for a long time, which affects the working efficiency and service life of the motor. Practical new type content

[0005] In order to facilitate the reduction of the temperature of the bus bar, the application provides a motor stator bus bar module facilitating heat dissipation.

[0006] The motor stator bus bar module facilitating heat dissipation provided by the application adopts the following technical scheme:

[0007] The motor stator bus bar module facilitating heat dissipation comprises a motor, a mounting ring, a bus bar and a heat dissipation assembly. The heat dissipation assembly comprises an air guide base and an air guide pipe.

[0008] The mounting ring is located inside a motor shell of the motor, and the bus bar is arranged on the mounting ring.

[0009] A heat conduction opening is formed on the motor shell of the motor and close to the mounting ring.

[0010] The air guide base is arranged on the motor shell and close to the heat conduction opening.

[0011] The air inlet end of the air duct is communicated with the inside of the motor shell of the motor through the air guide base, and the air outlet end of the air duct is located close to the air outlet end of the motor.

[0012] Optionally, the air guide base is in a cylindrical shape, and a heat conducting member is arranged at the end of the air guide base away from the motor.

[0013] Optionally, the heat conducting member comprises a mounting plate and a heat conducting rod group, wherein:

[0014] The mounting plate is arranged at the end of the air guide base away from the motor through a locking member;

[0015] The heat conducting rod group is arranged on the mounting plate, and the end of the heat conducting rod group away from the mounting plate is in contact with the outer circumferential surface of the mounting ring.

[0016] Optionally, the air inlet of the air duct is located close to the heat conducting rod group of the air guide base.

[0017] Optionally, an extrusion groove is arranged on the inner wall of the air guide base, one side of the mounting plate is arranged in the extrusion groove, the locking member comprises a locking bolt, the locking bolt penetrates the groove wall of the extrusion groove, and the locking bolt and the groove wall of the extrusion groove are threadedly connected, and the end of the locking bolt presses the mounting plate against the inner wall of the extrusion groove.

[0018] Optionally, the locking member further comprises a gasket, and the gasket is arranged between the locking bolt and the mounting plate.

[0019] Optionally, the mounting ring is made of heat conducting ceramic material.

[0020] Optionally, a filter screen is arranged in the air duct.

[0021] Optionally, the mounting ring is located at the position of the motor away from the air outlet of the motor, and a plurality of filter holes are arranged on the side wall of the air guide base.

[0022] Optionally, a sealing strip is arranged on the side of the mounting plate close to the motor, and a sealing gasket in contact with the side wall of the air guide base is arranged at the end of the sealing strip close to the air guide base.

[0023] In summary, the present application has at least one of the following beneficial technical effects:

[0024] 1. By setting a plurality of heat-conducting ports on the motor shell along the central axis in the circumferential direction, and installing a wind guide seat at the position of the heat-conducting port, the air inlet end of the air guide pipe is installed on the wind guide seat and communicates with the inside of the motor shell through the wind guide seat, and the air outlet end is located at the position of the motor air outlet end. When the motor is working, the air flow at the air outlet end forms a negative pressure inside the air guide pipe, accelerates the flow of gas near the mounting ring and bus bar, and improves the heat dissipation efficiency and effect. The wind guide seat is cylindrically arranged, and a heat-conducting member is arranged at the end away from the motor. The heat-conducting member is in contact with the outer peripheral surface of the mounting ring through the mounting plate and the heat-conducting rod group, so as to realize heat conduction. The heat-conducting rod has a large contact area with the airflow, thereby improving the heat dissipation efficiency. The side wall of the wind guide seat is provided with filter holes, and the external cold airflow enters the inside of the wind guide seat through the filter holes to exchange heat with the heat-conducting rod, while reducing the possibility of insects entering the inside of the motor shell. The air inlet of the air guide pipe is close to the position of the heat-conducting rod group, so that the cold airflow in the inside of the wind guide seat is directly sent out from the air guide pipe, thereby reducing the possibility of external cold airflow and dust entering the inside of the motor shell. The inside of the air guide pipe is provided with a filter screen, which further reduces the possibility of impurities entering the inside of the motor shell. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application.

[0026] Figure 2 is a schematic diagram of the structure of the heat dissipation assembly in the embodiment of the present application.

[0027] Figure 3 is a schematic diagram of the structure of the wind guide seat in the embodiment of the present application.

[0028] Figure 4 is a schematic diagram of the relative positions of the heat-conducting member and the locking member in the embodiment of the present application.

[0029] BRIEF DESCRIPTION OF DRAWINGS

[0030] 1, motor; 2, heat dissipation assembly; 21, wind guide seat; 211, extrusion groove; 212, filter hole; 22, air guide pipe; 221, filter screen; 23, heat-conducting member; 231, mounting plate; 232, heat-conducting rod; 233, sealing strip; 234, sealing gasket; 24, locking member; 241, locking bolt; 242, gasket strip. DETAILED DESCRIPTION

[0031] The following will be described in detail in combination with the accompanying Figures 1-4 The present application will be further described in detail.

[0032] The embodiment of the present application discloses a motor stator bus bar module facilitating heat dissipation.

[0033] A motor stator bus bar module facilitating heat dissipation comprises a motor 1, a mounting ring, a bus bar and a heat dissipation assembly 2. The mounting ring is installed inside the motor 1, the bus bar is installed on the mounting ring, and the heat dissipation assembly 2 is located close to the mounting ring. The mounting ring is made of heat-conducting ceramic material.

[0034] In the working process of the busbar, the busbar is cooled by the heat dissipation assembly 2, so as to reduce the temperature of the busbar and reduce the possibility of heat accumulation in the motor 1. Meanwhile, the installation ring made of heat-conducting ceramic material further improves the heat conduction efficiency.

[0035] The motor 1 shell of the motor 1 is provided with a plurality of heat conduction openings along the central axis of the motor 1 in the circumferential direction. In the embodiment of the application, the heat conduction openings are provided with three heat conduction openings. The heat dissipation assembly 2 is provided with a plurality of heat dissipation assemblies 2. In the embodiment of the application, the heat dissipation assembly 2 is provided with three heat dissipation assemblies 2. The heat dissipation assembly 2 and the heat conduction opening are one-to-one corresponding. Through the cooperation of multiple heat dissipation assemblies, the heat dissipation efficiency of the busbar and the installation ring is improved.

[0036] The heat dissipation assembly 2 includes a wind guide seat 21 and a wind guide pipe 22.

[0037] The wind guide seat 21 is installed at the position of the heat conduction opening of the motor 1 shell of the motor 1. The air inlet end of the wind guide pipe 22 is installed on the wind guide seat 21 and communicates with the inside of the motor 1 shell through the wind guide seat 21. The air outlet end of the wind guide pipe 22 is located at the air outlet end position of the motor 1.

[0038] In the working process of the motor 1, the airflow at the air outlet end of the motor 1 forms a negative pressure in the inside of the wind guide pipe 22, so as to accelerate the gas flow near the installation ring and the busbar, thereby improving the heat dissipation efficiency and heat dissipation effect of the installation ring and the busbar.

[0039] The wind guide seat 21 is provided in a cylindrical shape. The end of the wind guide seat 21 away from the motor 1 is provided with a heat conduction piece 23. The heat conduction piece 23 is in contact with the outer peripheral surface of the installation ring. The heat conduction piece 23 includes an installation plate 231 and a heat conduction rod 232 group. The installation plate 231 is installed on the end of the wind guide seat 21 away from the motor 1 through a locking piece 24. The heat conduction rod 232 group is installed on the installation plate 231. The end of the heat conduction rod 232 group away from the installation plate 231 is in contact with the outer peripheral surface of the installation ring.

[0040] The heat conduction rod 232 and the outer peripheral surface of the installation ring are in contact at multiple points. The installation ring conducts the heat of the busbar to the heat conduction rod 232. The heat conduction rod 232 and the airflow have a large contact area, which further improves the heat dissipation efficiency of the heat conduction rod 232.

[0041] In order to further improve the heat dissipation efficiency of the heat conduction rod 232, a plurality of filter holes 212 are arranged on the side wall of the wind guide seat 21. The external cold air flows into the inside of the wind guide seat 21 through the filter holes 212 and contacts the heat conduction rod 232 to exchange heat with the heat conduction rod 232. Meanwhile, the filter holes 212 reduce the possibility of insects or sundries entering the inside of the motor 1 shell of the motor 1.

[0042] The air inlet of the air duct 22 is located near the air guide base 21 near the group of heat conduction rods 232, and then the cold air flow inside the air guide base 21 is directly discharged from the air duct 22, which reduces the possibility of external cold air flow entering the motor 1 shell of the motor 1 and attaching external dust to the parts of the motor 1.

[0043] In order to reduce the possibility of impurities entering the motor 1 shell of the motor 1 from the air duct 22, a filter screen 221 is arranged inside the air duct 22.

[0044] The inner wall of the air guide base 21 is provided with an extrusion groove 211, one side of the mounting plate 231 is placed in the extrusion groove 211, the locking member 24 includes a locking bolt 241 and a gasket 242, the locking bolt 241 penetrates the groove wall of the extrusion groove 211, and the locking bolt 241 and the groove wall of the extrusion groove 211 are threadedly connected, and the end of the locking bolt 241 tightly presses the mounting plate 231 on the inner wall of the extrusion groove 211. The gasket 242 is located between the locking bolt 241 and the mounting plate 231.

[0045] When placing the mounting plate 231, the side plate of the mounting plate 231 is placed inside the extrusion groove 211, and the locking bolt 241 is tightened, the locking bolt 241 tightly presses the heat conduction rod 232 on the mounting plate 231 on the outer peripheral surface of the mounting ring through the gasket 242, and the gasket 242 improves the stress uniformity of the mounting plate 231.

[0046] In order to seal the end of the air guide base 21 away from the motor 1, the side of the mounting plate 231 near the motor 1 is provided with a sealing strip 233, and the end of the sealing strip 233 near the air guide base 21 is provided with a sealing gasket 234 in contact with the side wall of the air guide base 21. The possibility of external air flow entering the air guide base 21 at the mounting plate 231 is reduced through the sealing gasket 234.

[0047] The implementation principle of the motor stator busbar module of the application is that: a plurality of heat conduction openings are arranged on the motor 1 shell along the central axis in the circumferential direction, and a wind guide seat 21 is installed at the position of the heat conduction opening, the air inlet end of the wind guide pipe 22 is arranged on the wind guide seat 21 and communicates with the inside of the motor 1 shell through the wind guide seat 21, and the air outlet end is located at the air outlet end position of the motor 1. When the motor 1 works, the air flow at the air outlet end forms a negative pressure in the inside of the wind guide pipe 22, accelerates the gas flow near the mounting ring and the busbar, and improves the heat dissipation efficiency and effect. The wind guide seat 21 is cylindrically arranged, and a heat conduction piece 23 is arranged at the end away from the motor 1, the heat conduction piece 23 is in contact with the outer peripheral surface of the mounting ring through the mounting plate 231 and the heat conduction rod 232 group, and heat conduction is realized. The heat conduction rod 232 has a large contact area with the air flow, so that the heat dissipation efficiency is improved. The side wall of the wind guide seat 21 is provided with a filter hole 212, and the external cold air flow enters the inside of the wind guide seat 21 through the filter hole 212 and exchanges heat with the heat conduction rod 232, thereby reducing the possibility of insects entering the inside of the motor 1 shell. The air inlet of the wind guide pipe 22 is close to the position of the heat conduction rod 232 group, so that the cold air flow in the inside of the wind guide seat 21 is directly discharged from the wind guide pipe 22, thereby reducing the possibility of external cold air flow and dust entering the inside of the motor 1 shell. The inside of the wind guide pipe 22 is provided with a filter screen 221, which further reduces the possibility of impurities entering the inside of the motor 1 shell.

[0048] The above are preferred embodiments of the application, and do not limit the protection scope of the application, therefore: any equivalent changes made on the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. A motor stator busbar module facilitating heat dissipation, characterized in that: The application relates to a motor (1), a mounting ring, a busbar and a heat dissipation assembly (2), wherein the heat dissipation assembly (2) comprises a wind guide base (21) and a wind guide pipe (22). The mounting ring is arranged in the motor (1) shell of the motor (1), and the busbar is arranged on the mounting ring. A heat conduction opening is arranged on the motor (1) shell of the motor (1) and close to the mounting ring. The wind guide base (21) is arranged on the motor (1) shell and close to the heat conduction opening. The air inlet end of the wind guide pipe (22) is communicated with the motor (1) shell through the wind guide base (21), and the air outlet end of the wind guide pipe (22) is arranged close to the air outlet end of the motor (1).

2. The motor stator busbar module of claim 1, wherein: The wind guide base (21) is in a cylindrical shape, one end of the wind guide base (21) away from the motor (1) is provided with a heat conduction piece (23), and the heat conduction piece (23) is in contact with the outer periphery of the mounting ring.

3. The motor stator busbar module of claim 2, wherein: The heat conduction piece (23) comprises a mounting plate (231) and a heat conduction rod (232) group. The mounting plate (231) is arranged on the end of the wind guide base (21) away from the motor (1) through a locking piece (24). The heat conduction rod (232) group is arranged on the mounting plate (231), and one end of the heat conduction rod (232) group away from the mounting plate (231) is in contact with the outer periphery of the mounting ring.

4. The motor stator busbar module of claim 3, wherein: The air inlet of the wind guide pipe (22) is arranged close to the heat conduction rod (232) group of the wind guide base (21).

5. The motor stator busbar module of claim 3, wherein: The inner wall of the wind guide base (21) is provided with an extrusion groove (211), one side of the mounting plate (231) is arranged in the extrusion groove (211), the locking piece (24) comprises a locking bolt (241), the locking bolt (241) penetrates the groove wall of the extrusion groove (211), the locking bolt (241) is in threaded connection with the groove wall of the extrusion groove (211), and the end of the locking bolt (241) extrudes the mounting plate (231) on the inner wall of the extrusion groove (211).

6. The motor stator busbar module of claim 5, wherein: The locking piece (24) further comprises a pad strip (242), and the pad strip (242) is arranged between the locking bolt (241) and the mounting plate (231).

7. The motor stator busbar module of claim 1, wherein: The mounting ring is made of heat-conducting ceramic material.

8. The motor stator busbar module of claim 1, wherein: The wind guide pipe (22) is internally provided with a filter screen (221).

9. The motor stator busbar module of claim 1, wherein: The mounting ring is arranged on the motor (1) and away from the air outlet of the motor (1), and the side wall of the wind guide base (21) is provided with a plurality of filter holes (212).

10. The motor stator busbar module of claim 3, wherein: One side of the mounting plate (231) close to the motor (1) is provided with a sealing strip (233), and one end of the sealing strip (233) close to the wind guide base (21) is provided with a sealing pad (234) in contact with the side wall of the wind guide base (21).

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