An electric motorcycle motor shell

Abstract

The utility model relates to an electric motorcycle motor shell, including main casing and be located on two end caps of main casing two, the end cap has the mounting post of integrated molding, the mounting post is provided with the connecting hole, the connecting hole is linked with the inner chamber of main casing to the outside, the sidewall of mounting post is provided with a plurality of through grooves, a plurality of through groves are all linked with the connecting hole, the connecting hole is threadedly connected with the plugging post, and in the initial state, the plugging post blocks the connecting hole, and the communication of a plurality of through grooves and the inner chamber of main casing is blocked. The utility model motor shell heat dissipation effect is excellent.

Description

Technical Field

[0001] This utility model relates to the field of motor accessories, and in particular to a housing for an electric motorcycle motor. Background Technology

[0002] An electric motor's coil generates a magnetic field through an electric current, which in turn drives the motor. During this process, the coil generates heat due to its resistance, causing the motor to heat up.

[0003] Excessive temperature during motor operation can significantly reduce the aging process of the internal insulation materials, causing them to become brittle, crack, and lose insulation strength. When the insulation performance deteriorates to a certain level, inter-turn short circuits, phase-to-phase short circuits, or short circuits to ground can occur. This can lead to motor protection tripping and shutdown, or even burn out the windings, rendering the motor completely unusable.

[0004] Therefore, it is necessary to design a motor housing to improve the motor's heat dissipation performance and prevent the motor from overheating. Utility Model Content

[0005] This application provides an electric motorcycle motor housing with good heat dissipation.

[0006] The electric motorcycle motor housing provided in this application adopts the following technical solution:

[0007] An electric motorcycle motor housing includes a main housing and two end caps located at both ends of the main housing. Each end cap has an integrally formed mounting post with a connecting hole that connects to the outside and the inner cavity of the main housing. Multiple through slots are formed on the sidewall of each mounting post, and these through slots communicate with the connecting holes. A sealing post is threaded into each connecting hole. Initially, the sealing post blocks the connecting hole, preventing communication between the multiple through slots and the inner cavity of the main housing.

[0008] By employing the above technical solution, when the motor is in operation and requires heat dissipation, rotating the two sealing posts causes them to move out of their corresponding connection holes. This ultimately removes the sealing posts from the passageways and the inner cavity of the main housing, allowing the inner cavity of the main housing to connect with the outside. When the motor is operating, the temperature inside the main housing is higher than the outside temperature. The air inside the main housing is less dense and has lower pressure than the outside air. This density difference creates a pressure difference, driving airflow. Colder external air attempts to flow towards areas of lower pressure (i.e., the space inside the main housing "occupied" by hot air), while hotter air is "squeezed" towards areas of even lower pressure (i.e., the external environment). Therefore, cooler external air enters the inner cavity of the main housing through multiple passageways and connection holes on one side, while warmer air inside the main housing overflows through connection holes and multiple passageways on the other side, achieving convection cooling.

[0009] Preferably, a mounting ring is movably connected inside the connecting hole, and a filter screen is provided inside the mounting ring; a pull rod is provided on the mounting ring, the pull rod is located on the side of the mounting ring away from the main housing, the pull rod is in contact with the inner wall of the connecting hole, and a pull block is provided on the end of the pull rod away from the mounting ring.

[0010] By adopting the above technical solution, a filter screen is installed to prevent external dust and other contaminants from entering the inner cavity of the main housing through the connection hole. When the filter screen needs cleaning, the sealing post is screwed out of the connection hole, then a finger is inserted into the connection hole and pulled on the pull block. Applying force will pull the pull block, pull rod, and mounting ring out of the connection hole, allowing the filter screen to be cleaned. At the same time, when the mounting ring is pulled out of the connection hole, it will bring out any impurities located inside the connection hole.

[0011] Preferably, a mating groove is provided on one end of the sealing post near the main housing, and the pull block is inserted into the mating groove. When the sealing post moves, it drives the mounting ring to move together.

[0012] By adopting the above technical solution, when the sealing post is unscrewed from the connection hole, the pull block, pull rod, and mounting ring can be pulled out of the connection hole together without having to use your fingers to hook out the mounting ring.

[0013] Preferably, the sealing post includes a first post and a second post. The first post is threaded into the connecting hole. The second post is located on the side of the first post near the main housing. The diameter of the second post is smaller than the diameter of the first post. The mating groove is formed on the side wall of the second post. The end of the pull rod with a pull block is located between the second post and the hole wall of the connecting hole. The pull rod simultaneously abuts against both the second post and the hole wall of the connecting hole.

[0014] By adopting the above technical solution, the pull block is prevented from coming out of the mating groove, so that the sealing column can stably drive the installation ring to move together when it moves.

[0015] Preferably, one of the mounting posts on the end cap is located at the top of the end cap, and the other mounting post on the end cap is located at the bottom of the end cap.

[0016] By adopting the above technical solution, hot air in the main casing tends to flow out from the higher connecting port (because it is lighter and moves upward), while cold air flows into the main casing from the lower connecting port (to replenish the exhausted air), thus enhancing convection efficiency and heat dissipation.

[0017] Preferably, the main housing is provided with a first connecting angle, and a heat dissipation groove is provided on the first connecting angle; both end caps are provided with second connecting angles, and the second connecting angles on both end caps are connected to the first connecting angle by bolts.

[0018] By adopting the above technical solution, the connection between the main housing and the two end caps is facilitated, and the heat dissipation of the main housing is improved.

[0019] Preferably, the main housing surface is integrally formed with multiple heat dissipation ribs, which are circumferentially distributed on the main housing; the main housing surface is integrally formed with multiple protective ribs, which are located between the multiple protective ribs, and the distance from the top of the protective rib to the surface of the main housing is greater than the distance from the top of the heat dissipation rib to the surface of the main housing.

[0020] By adopting the above technical solution, the heat dissipation of the main casing is improved, and the heat dissipation fins are protected.

[0021] The main technical effects of this utility model are reflected in the following aspects:

[0022] 1. This utility model is provided with two connecting holes, which allows the hot air inside the main housing to be discharged after the motor starts, and the outside air to enter the main housing to cool the rotor and other components.

[0023] 2. This utility model, through the connection between the pull block and the mating groove, allows the installation ring and filter screen to be brought out of the process hole at the same time when the sealing column is rotated and unscrewed out of the connection hole, making it convenient to clean the process screen.

[0024] 3. This utility model improves the air convection effect during motor operation and enhances heat dissipation performance by using the height difference between the two mounting columns. Attached Figure Description

[0025] Figure 1 This is a structural diagram of the casing.

[0026] Figure 2 This is a schematic diagram of the main shell structure.

[0027] Figure 3 This is a schematic diagram of the main shell structure.

[0028] Figure 4 yes Figure 1 A structural schematic diagram of the middle casing from another angle.

[0029] Figure 5 yes Figure 4 A partial sectional view of the middle casing along line AA.

[0030] Figure 6 yes Figure 4 A magnified view of a section at point B in the middle.

[0031] Figure 7 It is a structural diagram of components such as sealing posts and mounting rings.

[0032] Reference numerals: 1. Main housing; 11. First connecting angle; 12. Heat dissipation groove; 13. Heat dissipation rib; 14. Protective rib; 2. End cap; 20. Second connecting angle; 21. Mounting post; 22. Connecting hole; 23. Through groove; 3. Sealing post; 31. First column; 32. Second column; 41. Mounting ring; 42. Filter screen; 43. Pull rod; 44. Pull block; 5. Mating groove. Detailed Implementation

[0033] The present application will be further described in detail below with reference to the accompanying drawings, so that the technical solution of the present application can be more easily understood and mastered.

[0034] Reference Figures 1-4 This embodiment of an electric motorcycle motor housing includes a main housing 1 and two end caps 2 disposed at both ends of the main housing 1. The main housing 1 has two first connecting corners 11 integrally formed, and heat dissipation grooves 12 are provided on the first connecting corners 11. The two end caps 2 are each provided with a second connecting corner 20 integrally formed, and the second connecting corners 20 on the two end caps 2 are connected to the corresponding first connecting corners 11 by bolts.

[0035] Reference Figure 2 and Figure 3 The main housing 1 has multiple heat dissipation ribs 13 integrally formed on its surface, which are distributed circumferentially. The main housing 1 also has multiple protective ribs 14 integrally formed on its surface, with the heat dissipation ribs 13 located between them. The distance from the tip of a protective rib 14 to the surface of the main housing 1 is greater than the distance from the tip of a heat dissipation rib 13 to the surface of the main housing 1. The tip of a protective rib 14 refers to the end of the rib 14 furthest from the surface of the main housing 1, and the tip of a heat dissipation rib 13 refers to the end of the rib 13 furthest from the surface of the main housing 1.

[0036] Reference Figure 1 , Figures 4-6 Both end caps 2 are integrally formed with mounting posts 21. The mounting post 21 on one end cap 2 is located at the top of the end cap 2, and the mounting post 21 on the other end cap 2 is located at the bottom of the end cap 2. Both mounting posts 21 are provided with connecting holes 22, which connect to the outside and the inner cavity of the main housing 1. Multiple through grooves 23 are provided on the side wall of the mounting post 21, and the multiple through grooves 23 are connected to the connecting holes 22. A sealing post 3 is threaded into the connecting hole 22. In the initial state, the sealing post 3 seals the connecting hole 22, blocking the communication between the multiple through grooves 23 and the inner cavity of the main housing 1.

[0037] Reference Figures 5-7A mounting ring 41 is rotatably and slidably connected within the connecting hole 22, and a filter screen 42 is installed inside the mounting ring 41. A pull rod 43 is integrally formed on the mounting ring 41, and the pull rod 43 is located on the side of the mounting ring 41 away from the main housing 1. The pull rod 43 fits against the inner wall of the connecting hole 22, and a pull block 44 is provided on the end of the pull rod 43 away from the mounting ring 41.

[0038] Reference Figures 5-7 The sealing post 3 includes a first post 31 and a second post 32. The first post 31 is threaded into the connecting hole 22. The second post 32 is located on the side of the first post 31 closest to the main housing 1, and the diameter of the second post 32 is smaller than the diameter of the first post 31. A mating groove 5 is formed on the side wall of the end of the second post 32 closest to the main housing 1, and a pull block 44 is inserted into the mating groove 5. The end of the pull rod 43 with the pull block 44 is located between the second post 32 and the hole wall of the connecting hole 22, and the pull rod 43 simultaneously abuts against both the second post 32 and the hole wall of the connecting hole 22.

[0039] Reference Figures 5-7 When the motor is in operation and needs heat dissipation, the two first columns 31 are rotated so that the two first columns 31 move out of the corresponding connecting holes 22, so that the first columns 31 no longer block the through groove 23 and the inner cavity of the main housing 1, and then the inner cavity of the main housing 1 will be connected to the outside.

[0040] When the motor is working, the temperature inside the main housing 1 is higher than the outside temperature. Because the air temperature inside the main housing 1 is higher than the external ambient temperature, the air density inside the main housing 1 decreases and its volume expands. Under the action of thermal buoyancy, the hot air tends to rise.

[0041] Reference Figure 1 , Figures 4-7 The top connection hole 22 serves as a hot air outlet, while the bottom connection hole 22 serves as a cold air inlet. Hot air continuously rises inside the main housing 1 and flows out through the top connection hole 22, causing a slight decrease in air pressure inside the housing (especially in the bottom region). This drives cooler external air to flow in through the bottom connection hole 22 to replenish the airflow, creating natural convection and achieving heat dissipation.

[0042] Reference Figures 5-7 When the filter screen 42 needs to be cleaned, rotate the first column 31 to unscrew it from the connecting hole 22. When the first column 31 is unscrewed from the connecting hole 22, it will pull the pull block 44, pull rod 43, and mounting ring 41 out of the connecting hole 22 together through the second column 32. When the mounting ring 41 is pulled out of the connecting hole 22, it will bring out the impurities located in the connecting hole 22.

[0043] Of course, the above are just typical examples of this application. In addition, this application may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed in this application.

Claims

1. An electric motorcycle motor housing, comprising a main housing (1) and two end caps (2) disposed at both ends of the main housing (1), characterized in that: The end cap (2) is integrally formed with a mounting post (21), and the mounting post (21) is provided with a connecting hole (22), which connects to the outside and the inner cavity of the main housing (1). The mounting post (21) is provided with multiple through grooves (23) on its side wall, and the multiple through grooves (23) are connected to the connecting hole (22). The connecting hole (22) is internally threaded with a sealing post (3). In the initial state, the sealing post (3) blocks the connecting hole (22) and blocks the communication between the multiple through grooves (23) and the inner cavity of the main housing (1).

2. The electric motorcycle motor housing according to claim 1, characterized in that: An installation ring (41) is movably connected inside the connection hole (22), and a filter screen (42) is provided inside the installation ring (41); a pull rod (43) is provided on the installation ring (41), the pull rod (43) is located on the side of the installation ring (41) away from the main housing (1), the pull rod (43) is in contact with the inner wall of the connection hole (22), and a pull block (44) is provided on the end of the pull rod (43) away from the installation ring (41).

3. The electric motorcycle motor housing according to claim 2, characterized in that: The sealing column (3) has a mating groove (5) on one end near the main housing (1), and the pull block (44) is inserted into the mating groove (5). When the sealing column (3) moves, it drives the mounting ring (41) to move together.

4. The electric motorcycle motor housing according to claim 3, characterized in that: The sealing column (3) includes a first column (31) and a second column (32). The first column (31) is threaded into the connecting hole (22). The second column (32) is located on the side of the first column (31) near the main housing (1). The diameter of the second column (32) is smaller than the diameter of the first column (31). The mating groove (5) is opened on the side wall of the second column (32). The end of the pull rod (43) with a pull block (44) is located between the second column (32) and the hole wall of the connecting hole (22). The pull rod (43) simultaneously abuts against the second column (32) and the hole wall of the connecting hole (22).

5. The electric motorcycle motor housing according to claim 1, characterized in that: One of the end caps (2) has a mounting post (21) located at the top of the end cap (2), and the other end cap (2) has a mounting post (21) located at the bottom of the end cap (2).

6. The electric motorcycle motor housing according to claim 1, characterized in that: The main housing (1) is provided with a first connecting angle (11), and a heat dissipation groove (12) is provided on the first connecting angle (11). The two end caps (2) are each provided with a second connecting angle (20), and the second connecting angles (20) on the two end caps (2) are connected to the first connecting angle (11) by bolts.

7. The electric motorcycle motor housing according to claim 6, characterized in that: The main shell (1) has multiple heat dissipation ribs (13) integrally formed on its surface, and the multiple heat dissipation ribs (13) are circumferentially distributed on the main shell (1); the main shell (1) has multiple protective ribs (14) integrally formed on its surface, and the multiple heat dissipation ribs (13) are located between the multiple protective ribs (14). The distance from the top of the protective rib (14) to the surface of the main shell (1) is greater than the distance from the top of the heat dissipation rib (13) to the surface of the main shell (1).

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