Electric tricycle motor and electric tricycle

Abstract

The utility model belongs to electric tricycle technical field discloses a kind of electric tricycle motor and electric tricycle, and the electric tricycle motor includes motor module, cooling fan, gearbox and breather valve, motor module includes motor shell, stator assembly, rotor assembly, motor shaft, magnetic ring assembly, circuit assembly, stator assembly is installed in motor shell, rotor assembly is located the radial inner side of stator assembly, motor shaft is arranged in rotor assembly, and the both ends of motor shaft are set out of motor shell;Magnetic ring assembly is sleeved in motor shaft, and circuit assembly is located the radial outer side of magnetic ring assembly, and circuit assembly includes high temperature line, and one end of high temperature line is set out of motor shell, and breather valve is installed in motor shell, and breather valve has vent pipe, and vent pipe is arranged in high temperature line.The magnetic ring of the electric tricycle motor is easy to install, and stability is better, and the electric tricycle motor has better heat dissipation performance, and the magnetic ring has better working stability, and has longer service life.

Description

Technical Field

[0001] This utility model relates to the field of electric tricycle technology, and in particular to an electric tricycle motor and an electric tricycle. Background Technology

[0002] As an important short-distance transportation tool, electric tricycles have undergone technological innovation in their motor systems. Magnetic ring technology has also evolved from early AlNiCo materials to today's Neodymium Iron Boron permanent magnets, resulting in significantly improved performance. In the electric tricycle field, the installation precision requirements for magnetic ring solutions have been greatly reduced, but stringent requirements still exist. Most existing magnetic rings are fixed using adhesive bonding, lacking stability. Furthermore, the heat dissipation performance of current tricycle motors is poor, and magnetic rings are unstable and easily damaged under extreme temperature changes. When a magnetic ring fails, the entire rotor assembly needs to be replaced. Utility Model Content

[0003] The first objective of this utility model is to provide an electric tricycle motor, in which the magnetic ring is easy to install, has good stability, good heat dissipation performance, good working stability of the magnetic ring, and a long service life.

[0004] The second objective of this utility model is to provide an electric tricycle that has good operational reliability, low failure rate, and high user satisfaction.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] This utility model discloses an electric tricycle motor, comprising: a motor module, the motor module including a motor housing, a stator assembly, a rotor assembly, a motor shaft, a magnetic ring assembly, and a circuit assembly; the stator assembly is mounted on the motor housing, the rotor assembly is located radially inside the stator assembly, the motor shaft passes through the rotor assembly, and both ends of the motor shaft protrude from the motor housing; the magnetic ring assembly is sleeved on the motor shaft, the circuit assembly is located radially outside the magnetic ring assembly, the circuit assembly includes a high-temperature wire, one end of the high-temperature wire protruding from the motor housing; a cooling fan, the cooling fan being mounted on the first end of the motor shaft protruding from the motor housing; a gearbox, the gearbox being mounted on the second end of the motor shaft protruding from the motor housing; and a vent valve, the vent valve being mounted inside the motor housing, the vent valve having a vent pipe passing through the high-temperature wire.

[0007] In some embodiments, the magnetic ring assembly includes a magnetic ring bracket and a magnetic ring body, wherein the magnetic ring bracket is sleeved on the motor shaft and the magnetic ring body is sleeved on the magnetic ring bracket.

[0008] In some embodiments, the circuit assembly includes a circuit board and a circuit bracket, the circuit bracket being located outside the magnetic ring assembly, one end of the circuit bracket abutting against the stator assembly, and the circuit board being mounted on the other end of the circuit bracket.

[0009] In some specific embodiments, the circuit support is provided with a mounting groove at one end away from the stator assembly, the bottom wall of the mounting groove has a through-hole, the magnetic ring assembly is located in the through-hole, the circuit board has an arc-shaped structure, the arc-shaped structure is mounted in the mounting groove and surrounds the magnetic ring assembly.

[0010] In some more specific embodiments, the circuit board is provided with a first fixing hole, the bottom wall of the mounting groove is provided with a fixing post, the fixing post is provided with a second fixing hole, and a first fixing member passes through the first fixing hole and connects to the second fixing hole to fix the circuit board on the circuit bracket.

[0011] In some specific embodiments, the circuit support is provided with a locking hole, and the vent valve is provided with a locking protrusion that cooperates with the locking hole.

[0012] In some embodiments, the motor housing includes an upper cover, a housing, and a lower cover. The housing has open ends. The upper cover and the lower cover are respectively connected to the open ends of the housing. The cooling fan is located outside the upper cover. The gearbox housing is connected to the lower cover.

[0013] In some specific embodiments, the upper cover is provided with a first mounting ear, the lower cover is provided with a second mounting ear, the housing is provided with a first mounting post, the two ends of the first mounting post abut against the first mounting ear and the second mounting ear respectively, and the second fixing member passes through the first mounting ear, the first mounting post and the second mounting ear to fix the upper cover and the lower cover to the housing.

[0014] In some more specific embodiments, the lower cover is provided with a third fixing hole, the gearbox housing is provided with a second mounting post, and the third fixing member passes through the second mounting post and is connected to the third fixing hole to fix the gearbox housing to the lower cover.

[0015] This utility model also discloses an electric tricycle, including the electric tricycle motor and vehicle body described above, wherein the electric tricycle motor is installed on the vehicle body.

[0016] The beneficial effects of this electric tricycle motor are as follows: The magnetic ring assembly is sleeved on the motor shaft. Compared with the adhesive method, the press-fit installation method is simpler to operate and easier to disassemble. If the magnetic ring assembly is damaged, it can be directly replaced without replacing the stator as in existing technologies, thus reducing maintenance costs. The added cooling fan allows the motor module to rotate with the motor shaft during operation, achieving good heat dissipation for the motor module. The added vent valve balances the air pressure between the motor module and the outside environment and also plays an auxiliary role in heat dissipation. The combined cooling effect of the cooling fan and vent valve ensures effective heat dissipation of the electric tricycle motor, resulting in better working stability and a longer service life for the magnetic ring.

[0017] The beneficial effects of this electric tricycle are: the electric tricycle has good working reliability, low failure rate, and high user satisfaction.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] Figure 1 This is an exploded view of the electric tricycle according to an embodiment of the present utility model;

[0020] Figure 2 This is a partial structural schematic diagram of the electric tricycle according to an embodiment of the present utility model;

[0021] Figure 3 yes Figure 2 A cross-sectional view of the structure shown;

[0022] Figure 4 yes Figure 2 An exploded view of the structure shown;

[0023] Figure 5 yes Figure 4 A magnified view of a portion of the structure shown.

[0024] Figure 6 This is an exploded view of the motor housing.

[0025] Figure label:

[0026] 100. Motor module; 110. Motor housing; 111. Top cover; 1111. First mounting ear; 112. Housing; 1121. First mounting post; 113. Bottom cover; 1131. Second mounting ear; 1132. Third fixing hole; 120. Stator assembly; 130. Rotor assembly; 140. Motor shaft; 150. Magnetic ring assembly; 151. Magnetic ring bracket; 1511. Sleeve; 152. Magnetic ring body; 60. Circuit assembly; 161. Circuit board; 1611. First mounting hole; 162. Circuit bracket; 1621. Mounting slot; 1622. Center hole; 1623. Mounting post; 1624. Clip hole; 1625. Ventilation hole; 170. Vent valve; 171. Vent pipe; 172. Clip protrusion; 180. High temperature wire; 190. Bearing; 200. Cooling fan; 300. Gearbox; 310. Second mounting post. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0028] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] In the description of this embodiment, the terms "upper," "lower," "left," "right," "front," and "rear," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are merely used for distinction in description and have no special meaning.

[0030] This utility model discloses an electric tricycle motor, referenced... Figure 1 , Figure 2 and Figure 3As shown, the electric tricycle motor includes a motor module 100, a cooling fan 200, a gearbox 300, and a vent valve 170. The motor module 100 includes a motor housing 110, a stator assembly 120, a rotor assembly 130, a motor shaft 140, a magnetic ring assembly 150, and a circuit assembly 160. The stator assembly 120 is mounted on the motor housing 110, and the rotor assembly 130 is located radially inside the stator assembly 120. The motor shaft 140 passes through the rotor assembly 130, with both ends of the motor shaft 140 extending out of the motor housing 110. The magnetic ring assembly 150 is sleeved on the motor shaft 140. The circuit assembly 160 is located radially outside the magnetic ring assembly 150. The circuit assembly 160 includes a high-temperature wire 180, one end of which extends out of the motor housing 110. A cooling fan 200 is mounted on the first end of the motor shaft 140 extending out of the motor housing 110. A gearbox 300 is mounted on the second end of the motor shaft 140 extending out of the motor housing 110. A vent valve 170 is installed inside the motor housing 110 and has a vent pipe 171 that passes through the high-temperature wire 180. It is understood that, compared to adhesive bonding, press-fitting the magnetic ring assembly 150 onto the motor shaft 140 is simpler to operate and easier to disassemble. If the magnetic ring assembly 150 is damaged, it can be directly replaced without replacing the stator as in existing technologies, thus reducing maintenance costs. The added cooling fan 200 and the motor module 100 can rotate together with the motor shaft 140 when working, which achieves good heat dissipation of the motor module 100. The added vent valve 170 can balance the air pressure between the motor module 100 and the outside environment and play an auxiliary role in heat dissipation. The heat dissipation effect of the cooling fan 200 and the vent valve 170 can ensure the heat dissipation effect of the electric tricycle motor, so that the magnetic ring has good working stability and long service life.

[0031] Optional, see reference Figure 1 and Figure 3 As shown, the magnetic ring assembly 150 includes a magnetic ring bracket 151 and a magnetic ring body 152. The magnetic ring bracket 151 is sleeved on the motor shaft 140, and the magnetic ring body 152 is sleeved on the magnetic ring bracket 151. It can be understood that in the actual assembly process, the magnetic ring body 152 is first sleeved on the magnetic ring bracket 151, and then the assembled magnetic ring assembly 150 is sleeved on the motor shaft 140. Compared to the technical solution of directly installing the magnetic ring body 152 onto the motor shaft 140, the magnetic ring bracket 151 can protect the magnetic ring body 152, and there is no need to process any mating structure on the magnetic ring body 152, which is beneficial to ensuring the performance of the magnetic ring body 152.

[0032] Alternatively, the magnetic ring bracket 151 may be interference-fitted with the motor shaft 140. Of course, in other embodiments of this invention, the magnetic ring bracket 151 may also be coupled to the motor shaft 140 via a connecting key.

[0033] Alternatively, the magnetic ring bracket 151 may be provided with a sleeve 1511, which has a stepped structure. The magnetic ring body 152 is fitted onto the sleeve 1511, and one end of the magnetic ring bracket 151 abuts against the stepped surface of the sleeve 1511. This facilitates the installation of the magnetic ring body 152 and the magnetic ring bracket 151, and also improves the connection stability between the magnetic ring body 152 and the magnetic ring bracket 151.

[0034] Optional, see reference Figure 1 and Figure 3 As shown, the circuit assembly 160 includes a circuit board 161 and a circuit bracket 162. The circuit bracket 162 is located outside the magnetic ring assembly 150, with one end of the circuit bracket 162 abutting against the stator assembly 120, and the circuit board 161 mounted on the other end of the circuit bracket 162. It is understood that mounting the circuit board 161 on the circuit bracket 162 ensures that the circuit board 161 is stably held in the motor housing 110 and that the circuit board 161 is stably electrically connected to the stator assembly 120 of the motor module 100. The abutment of one end of the circuit bracket 162 against the stator assembly 120 improves the installation stability of the circuit assembly 160. To further enhance the installation stability of the circuit bracket 162, it can be bonded to the inner wall of the motor housing 110 or connected to the motor housing 110 via an interference fit.

[0035] Further optional, see reference Figures 4-5 As shown, the circuit support 162 has a mounting groove 1621 at one end opposite to the stator assembly 120. The bottom wall of the mounting groove 1621 has a through-hole 1622. The magnetic ring assembly 150 is located inside the central hole 1622. The circuit board 161 has an arc-shaped structure, which is mounted in the mounting groove 1621 and surrounds the magnetic ring assembly 150. It can be understood that setting the circuit board 161 as an arc-shaped structure can save space, reduce the volume of the circuit board 161, and improve the space utilization of the motor housing 110, thereby improving the structural compactness of the motor module 100.

[0036] Further optional, see reference Figure 5As shown, the circuit board 161 has a first fixing hole 1611, and the bottom wall of the mounting groove 1621 has a fixing post 1623. The fixing post 1623 has a second fixing hole. A first fixing member passes through the first fixing hole 1611 and connects with the second fixing hole to fix the circuit board 161 to the circuit bracket 162. Understandably, in actual operation, simply place the circuit board 161 into the mounting groove 1621, align the first fixing hole 1611 with the second fixing hole, and then connect the first fixing member through the first fixing hole 1611 and the second fixing hole to fix the circuit board 161 to the circuit bracket 162. This connection method ensures and improves the installation stability of the circuit board 161. The first fixing member can be a screw, pin, or rivet, depending on actual needs.

[0037] Alternatively, there may be three first fixing holes 1611, spaced apart circumferentially along the circuit board 161. This improves the installation stability of the circuit board 161. In other embodiments of this invention, the number of first fixing holes 1611 may be two, four, or more, depending on actual needs.

[0038] Of course, it should be noted that the connection between the circuit board 161 and the circuit bracket 162 can also be by adhesive bonding or snap-fit ​​connection, and is not limited to the methods described above.

[0039] Alternatively, the circuit bracket 162 may be an aluminum bracket, and the circuit bracket 162 may have multiple ventilation holes 1625. It is understood that using an aluminum bracket for the circuit bracket 162 can reduce the weight of the circuit bracket 162 and improve its heat dissipation capacity. Providing multiple ventilation holes 1625 in the circuit bracket 162 can further improve the heat dissipation efficiency of the motor module 100.

[0040] Further optional, see reference Figure 5 As shown, the circuit bracket 162 has a locking hole 1624, and the vent valve 170 has a locking protrusion 172 that mates with the locking hole 1624. Therefore, in actual installation, installation is completed simply by inserting the locking protrusion 172 on the vent valve 170 into the locking hole 1624, making the operation very convenient and ensuring the installation stability of the vent valve 170. Of course, in other embodiments of this invention, the vent valve 170 can also be directly fixed to the circuit bracket 162 or the motor housing 110 using screws, adhesive, or other methods as needed.

[0041] Optional, see reference Figure 4 and Figure 6As shown, the motor housing 110 includes an upper cover 111, a housing 112, and a lower cover 113. The housing 112 is open at both ends. The upper cover 111 and the lower cover 113 are respectively connected to the open ends of the housing 112. The cooling fan 200 is located on the outside of the upper cover 111, and the gearbox 300's transmission housing is connected to the lower cover 113. It is understood that the upper cover 111 provides mechanical support and auxiliary heat dissipation, while the lower cover 113 serves a sealing and dustproof function. Dividing the motor housing 110 into three parts simplifies its structure and reduces its manufacturing cost.

[0042] Optionally, the upper cover 111, housing 112, and lower cover 113 are all made of aluminum. Using aluminum for the upper cover 111, housing 112, and lower cover 113 can reduce the weight of the motor housing 110 and improve its heat dissipation capacity.

[0043] Optionally, the lower cover 113 is designed with ventilation holes 1625 or heat dissipation fins to help dissipate heat by guiding airflow and prevent the motor module 100 from overheating.

[0044] Optional, see reference Figure 6 As shown, the upper cover 111 is provided with a first mounting ear 1111, the lower cover 113 is provided with a second mounting ear 1131, and the housing 112 is provided with a first mounting post 1121. The two ends of the first mounting post 1121 abut against the first mounting ear 1111 and the second mounting ear 1131 respectively. The second fastener passes through the first mounting ear 1111, the first mounting post 1121 and the second mounting ear 1131 to fix the upper cover 111 and the lower cover 113 to the housing 112. Understandably, during actual installation, the upper cover 111 and lower cover 113 are fitted to both sides of the housing 112, so that the two ends of the first mounting post 1121 abut against the first mounting ear 1111 and the second mounting ear 1131 respectively. Then, the second fastener passes through the first mounting ear 1111, the first mounting post 1121, and the second mounting ear 1131 to fix the upper cover 111 and lower cover 113 to the housing 112. This connection method not only facilitates the installation of the upper cover 111, lower cover 113, and housing 112, but also improves the connection stability and sealing of the upper cover 111, lower cover 113, and housing 112. The second fastener can be selected as a screw, pin, or rivet according to actual needs.

[0045] Optional, see reference Figure 1 and Figure 6As shown, the lower cover 113 has a third fixing hole 1132, and the gearbox 300's transmission housing has a second mounting post 310. The third fixing member passes through the second mounting post 310 and connects to the third fixing hole 1132 to fix the gearbox 300's transmission housing to the lower cover 113. In actual installation, after the gearbox 300 is assembled, it is fitted onto the lower cover 113. The second end of the motor shaft 140 engages with the gearbox 300 in a transmission connection. Then, the third fixing member passes through the second mounting post 310 and connects to the third fixing hole 1132 to fix the gearbox 300 to the lower cover 113. This connection method not only facilitates fixing the gearbox 300 to the motor housing 110 but also improves the installation stability of the gearbox 300. The third fixing member can be selected as a screw, pin, or rivet according to actual needs.

[0046] Optional, see reference Figure 3 As shown, a bearing 190 is provided between the lower cover 113 and the motor shaft 140, and a bearing 190 is provided between the upper cover 111 and the motor shaft 140, thereby stably supporting the motor shaft 140 and reducing the wear of the motor shaft 140.

[0047] This utility model also discloses an electric tricycle, including the electric tricycle motor and the vehicle body mentioned above, with the electric tricycle motor mounted on the vehicle body. Due to the aforementioned electric tricycle features, this electric tricycle has good operational reliability, a low failure rate, and high user satisfaction.

[0048] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0049] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An electric tricycle motor, characterized in that, include: A motor module (100) includes a motor housing (110), a stator assembly (120), a rotor assembly (130), a motor shaft (140), a magnetic ring assembly (150), and a circuit assembly (160). The stator assembly (120) is mounted on the motor housing (110), the rotor assembly (130) is located radially inside the stator assembly (120), the motor shaft (140) passes through the rotor assembly (130), and both ends of the motor shaft (140) protrude from the motor housing (110). The magnetic ring assembly (150) is sleeved on the motor shaft (140), and the circuit assembly (160) is located radially outside the magnetic ring assembly (150). The circuit assembly (160) includes a high-temperature wire (180), one end of which protrudes from the motor housing (110). A cooling fan (200) is mounted on the first end of the motor shaft (140) that extends out of the motor housing (110); A gearbox (300) is mounted on the second end of the motor shaft (140) that extends out of the motor housing (110); A vent valve (170) is installed inside the motor housing (110). The vent valve (170) has a vent pipe (171) that passes through the high-temperature wire (180).

2. The electric tricycle motor according to claim 1, characterized in that, The magnetic ring assembly (150) includes a magnetic ring bracket (151) and a magnetic ring body (152). The magnetic ring bracket (151) is sleeved on the motor shaft (140), and the magnetic ring body (152) is sleeved on the magnetic ring bracket (151).

3. The electric tricycle motor according to claim 1, characterized in that, The circuit assembly (160) includes a circuit board (161) and a circuit bracket (162). The circuit bracket (162) is located outside the magnetic ring assembly (150). One end of the circuit bracket (162) abuts against the stator assembly (120), and the circuit board (161) is mounted on the other end of the circuit bracket (162).

4. The electric tricycle motor according to claim 3, characterized in that, The circuit support (162) has a mounting groove (1621) at one end away from the stator assembly (120). The bottom wall of the mounting groove (1621) has a through-hole (1622). The magnetic ring assembly (150) is located in the central hole (1622). The circuit board (161) has an arc-shaped structure. The arc-shaped structure is installed in the mounting groove (1621) and surrounds the magnetic ring assembly (150).

5. The electric tricycle motor according to claim 4, characterized in that, The circuit board (161) is provided with a first fixing hole (1611), and the bottom wall of the mounting groove (1621) is provided with a fixing post (1623). The fixing post (1623) is provided with a second fixing hole. The first fixing member passes through the first fixing hole (1611) and connects with the second fixing hole to fix the circuit board (161) on the circuit bracket (162).

6. The electric tricycle motor according to claim 3, characterized in that, The circuit support (162) is provided with a locking hole (1624), and the vent valve (170) is provided with a locking protrusion (172) that cooperates with the locking hole (1624).

7. The electric tricycle motor according to claim 1, characterized in that, The motor housing (110) includes an upper cover (111), a housing (112), and a lower cover (113). The housing (112) is open at both ends. The upper cover (111) and the lower cover (113) are respectively connected to the open ends of the housing (112). The cooling fan (200) is located outside the upper cover (111). The gearbox housing (300) is connected to the lower cover (113).

8. The electric tricycle motor according to claim 7, characterized in that, The upper cover (111) is provided with a first mounting ear (1111), the lower cover (113) is provided with a second mounting ear (1131), and the housing (112) is provided with a first mounting post (1121). The two ends of the first mounting post (1121) abut against the first mounting ear (1111) and the second mounting ear (1131) respectively. The second fastener passes through the first mounting ear (1111), the first mounting post (1121) and the second mounting ear (1131) to fix the upper cover (111) and the lower cover (113) on the housing (112).

9. The electric tricycle motor according to claim 7, characterized in that, The lower cover (113) is provided with a third fixing hole (1132), and the gearbox (300) gearbox housing is provided with a second mounting post (310). The third fixing member passes through the second mounting post (310) and connects to the third fixing hole (1132) to fix the gearbox (300) gearbox housing on the lower cover (113).

10. An electric tricycle, characterized in that, It includes an electric tricycle motor and a vehicle body as described in any one of claims 1-9, wherein the electric tricycle motor is mounted on the vehicle body.

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