Motorcycle motor temperature acquisition device

Abstract

The application relates to the technical field of motor detection of electric motorcycles, and relates to a motor temperature acquisition device for electric motorcycles, which comprises a fixed ring-shaped plate and a movable ring-shaped plate, the middle parts of the fixed ring-shaped plate and the movable ring-shaped plate are provided with mounting through holes, a plurality of mounting plates are fixedly connected to one side of the fixed ring-shaped plate close to the movable ring-shaped plate, the mounting plates are uniformly distributed on the fixed ring-shaped plate in a circumferential direction, the movable ring-shaped plate is provided with mounting through slots corresponding to the mounting plates, the movable ring-shaped plate is slidably sleeved on the mounting plates, the edges of the fixed ring-shaped plate and the movable ring-shaped plate are fixedly connected through long bolts and fastening nuts, an axial adjusting assembly is arranged on the mounting plate, a radial adjusting assembly is arranged on the driving end of the axial adjusting assembly, a base is arranged on the driving end of the adjusting assembly, a temperature acquisition assembly is arranged below the base, and an elastic lamination assembly is arranged between the temperature acquisition assembly and the base; the application eliminates the contact thermal resistance fluctuation caused by uneven manual pressing force or motor operation vibration, and improves the acquisition accuracy and repeatability of temperature data.

Description

Technical Field

[0001] This invention relates to the field of electric motorcycle motor testing technology, and in particular to a motor temperature acquisition device for electric motorcycles. Background Technology

[0002] As a core drive component of electric motorcycles, the temperature rise performance of the stator windings of the hub motor directly affects the insulation life and operational reliability of the motor. During the vehicle production and quality inspection stages, batch temperature rise tests must be conducted on finished hub motors to verify their thermal reliability under rated load and overload conditions.

[0003] The finished hub motor has a sealed structure. The rotor housing and end cover form a closed cavity through sealing rings and fastening bolts. The heat transfer path between the internal stator windings and the external environment is mainly through the heat dissipation of the housing surface. According to the principle of heat conduction, the heat generated by the windings must pass through the insulating varnish layer, air gap, and housing wall in sequence to be transferred to the housing surface. This path has significant thermal resistance, resulting in the housing surface temperature being lower than the actual winding temperature, and there is also a thermal response hysteresis. Therefore, the accuracy of temperature acquisition is highly dependent on the contact state between the sensor and the housing surface and the selection of the measuring point location.

[0004] Currently, batch temperature testing of finished wheel hub motors mostly employs shell-mounted sensors, where operators fix the temperature sensors to the motor housing surface using thermally conductive adhesive or tape. However, this method has the following drawbacks: First, the sensor attachment position depends on manual judgment, leading to significant differences in position between different operators or between different tests, resulting in poor comparability of test data; second, the contact pressure and contact area are affected by the operator's technique, resulting in unstable contact thermal resistance and discrete results from multiple measurements of the same motor; third, single-point measurements only reflect localized temperatures and cannot obtain axial temperature distribution information, making it difficult to comprehensively assess the motor's thermal state.

[0005] In addition, some testing methods use the method of removing and installing the end cover to install the built-in sensor, but this method damages the motor's sealing structure and dynamic balance, and is only suitable for prototype analysis in the R&D stage, and cannot meet the integrity requirements of finished motor factory inspection.

[0006] Therefore, there is an urgent need for a mechanical device that can achieve stable sensor contact and multi-point synchronous data acquisition without damaging the motor's sealing structure, in order to improve testing efficiency, data consistency, and the comprehensiveness of thermal assessment. Summary of the Invention

[0007] The purpose of this invention is to address the shortcomings of existing technologies by proposing a motor temperature acquisition device for electric motorcycles.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: A temperature acquisition device for an electric motorcycle motor includes a fixed annular plate and a movable annular plate. Both the fixed and movable annular plates have mounting through holes in their middle portions. Multiple mounting plates are fixedly connected to the side of the fixed annular plate closest to the movable annular plate. The mounting plates are evenly distributed circumferentially on the fixed annular plate. The movable annular plate has mounting slots corresponding to the mounting plates. The movable annular plate is slidably fitted onto the mounting plates. The edges of the fixed and movable annular plates are fixedly connected by long bolts and fastening nuts. An axial adjustment assembly is provided on the mounting plate. A radial adjustment assembly is provided at the drive end of the axial adjustment assembly. A base is provided at the drive end of the adjustment assembly. A temperature acquisition assembly is located below the base. An elastic fitting assembly is provided between the temperature acquisition assembly and the base.

[0009] Preferably, the mounting plate has a sliding groove; the axial adjustment assembly includes an axial adjustment screw rotatably disposed in the sliding groove, an axial adjustment seat threadedly connected to the axial adjustment screw, a slide rod parallel to the axial adjustment screw in the sliding groove, the axial adjustment seat slidably sleeved on the slide rod, a rotating head at one end of the axial adjustment screw, and a locking nut at the other end of the axial adjustment screw.

[0010] Preferably, the radial adjustment assembly includes a fixed seat fixedly connected to the axial adjustment seat. A locking groove is formed on the fixed seat along the radial direction of the hub motor. A radial adjustment plate is slidably connected within the locking groove. A sliding groove is formed on one side of the radial adjustment plate. Multiple slots are evenly distributed on both sides of the sliding groove. A fixed plate is positioned opposite the sliding groove on one side of the locking groove. Control grooves are formed on both sides of the locking groove opposite the fixed plate. A locking pressing block is slidably connected within the control groove. A locking spring is connected between one end of the locking pressing block located in the locking groove and the fixed plate. A locking block corresponding to the slot is fixedly connected to the locking pressing block. The base is fixedly connected to the bottom of the radial adjustment plate.

[0011] Preferably, the slot opening is rounded, and the end of the card block opposite to the slot is rounded accordingly.

[0012] Preferably, the elastic fitting component includes a guide cylinder fixedly connected to the bottom of the base. The guide cylinder has a cavity, and the bottom of the cavity has a sliding through hole communicating with the outside of the guide cylinder. A guide rod is slidably connected in the sliding through hole. A temperature acquisition unit is installed at the bottom of the guide rod, and a disc spring is sleeved on the outside of the guide rod. The two ends of the disc spring abut against the bottom of the guide cylinder and the temperature acquisition component, respectively.

[0013] Preferably, a limiting ring is fixedly sleeved at one end of the guide rod located inside the guide cylinder, and the outer diameter of the limiting ring is larger than the inner diameter of the sliding through hole.

[0014] Preferably, the temperature acquisition unit includes a mounting base fixedly connected to the bottom of the guide rod, and a miniature temperature probe is mounted on the bottom of the mounting base, the probe tip of which is hemispherical.

[0015] Preferably, it also includes a wireless signal receiving terminal. The mounting base integrates a wireless signal transmission module. The wireless signal transmission module and the wireless signal receiving terminal are connected wirelessly. The temperature data collected by the miniature temperature probe is sent to the wireless signal receiving terminal for reception and processing via the wireless signal transmission module.

[0016] Preferably, a soft, wear-resistant silicone pad is provided at the mounting through holes of the fixed annular plate and the moving annular plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are: This invention utilizes a mounting frame constructed from fixed and movable annular plates to accommodate motor end covers. The movable annular plate slides onto the mounting plate of the fixed annular plate and is then secured with long bolts and fastening nuts. This allows for quick assembly and disassembly of the device and the motor end covers without disassembling the motor itself, preserving its sealing performance and meeting the batch testing requirements of finished motors. Simultaneously, the fitting structure between the annular plate and the motor end cover achieves natural coaxial positioning, forming a rigid support with the evenly distributed circumferential mounting plate, ensuring structural stability of the device during motor rotation without loosening or shifting. The device employs axial and radial adjustment components sequentially mounted on the mounting plate, enabling precise position adjustment of the temperature acquisition component along the motor's axial and radial directions. This allows for the calibration of fixed temperature measurement points according to testing requirements, resolving the issue of point deviation in traditional temperature measurement methods and improving the accuracy and comparability of temperature data. Furthermore, the elastic contact component between the temperature acquisition component and the base adapts to radial runout during motor rotation and microscopic undulations on the outer shell surface, ensuring a tight fit between the temperature acquisition component and the motor shell, eliminating thermal resistance fluctuations caused by contact gaps, and further guaranteeing the stability and reliability of temperature acquisition. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a hub motor. Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 3 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 4 This is a partial structural diagram of the present invention. Figure 1 ; Figure 5 This is a partial structural diagram of the present invention. Figure 2 ; Figure 6 This is a partial cross-sectional view of the present invention.

[0019] In the diagram: 1. Fixed annular plate; 101. Mounting through hole; 2. Moving annular plate; 201. Mounting through groove; 3. Mounting plate; 301. Sliding through groove; 4. Long bolt; 5. Fastening nut; 6. Base; 7. Fixed seat; 701. Locking through groove; 702. Control through groove; 8. Radial adjusting plate; 801. Slide groove; 802. Slot; 9. Guide cylinder; 901. Cavity; 902. Sliding through hole; 10. Axial adjusting screw; 11. Axial adjusting seat; 12. Slide rod; 13. Rotating head; 14. Locking nut; 15. Fixed plate; 16. Locking pressing block; 17. Locking spring; 18. Clamping block; 19. Guide rod; 20. Disc spring; 21. Limiting ring; 22. Mounting seat; 23. Miniature temperature probe; 24. Soft wear-resistant silicone pad; 25. Hub motor; 26. End cap; 27. Step. Detailed Implementation

[0020] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0021] like Figure 2-6 This invention provides a motor temperature acquisition device for an electric motorcycle, comprising a fixed annular plate 1 and a movable annular plate 2. Both the fixed annular plate 1 and the movable annular plate 2 have mounting through holes 101 in their middle portions. Multiple mounting plates 3 are fixedly connected to the side of the fixed annular plate 1 closest to the movable annular plate 2. The mounting plates 3 are evenly distributed circumferentially on the fixed annular plate 1. The movable annular plate 2 has mounting through slots 201 corresponding to the mounting plates 3. The movable annular plate 2 is slidably fitted onto the mounting plates 3. The edges of the fixed annular plate 1 and the movable annular plate 2 are fixedly connected by long bolts 4 and fastening nuts 5. An axial adjustment assembly is provided on the mounting plate 3. A radial adjustment assembly is provided at the drive end of the axial adjustment assembly. A base 6 is provided at the drive end of the adjustment assembly. A temperature acquisition assembly is provided below the base 6. An elastic fitting assembly is provided between the temperature acquisition assembly and the base 6.

[0022] like Figure 1The hub motor 25 shown has end caps 26 on both sides of its housing, and steps 27 are formed on the end caps 26. When temperature acquisition and detection are required, the fixed annular plate 1 and the moving annular plate 2 are fitted onto the steps 27 through the mounting through holes 101. During installation, the fixed annular plate 1 is installed first, and then the moving annular plate 2 is installed. The moving annular plate 2 slides along the mounting plate 3. The distance between the moving annular plate 2 and the fixed annular plate 1 is adjusted. By rotating the fastening nut 5, a mutual tension force can be applied to the fixed annular plate 1 and the moving annular plate 2 in the axial direction. Due to the presence of the mounting plate 3, this tension force is ultimately converted into a clamping force of the entire annular frame on the periphery of the motor housing, so that the device is stably installed on the hub motor 25.

[0023] Specifically, the mounting plate 3 has a sliding groove 301; the axial adjustment assembly includes an axial adjustment screw 10 rotatably disposed within the sliding groove 301, an axial adjustment seat 11 threadedly connected to the axial adjustment screw 10, a slide rod 12 parallel to the axial adjustment screw 10 disposed within the sliding groove 301, the axial adjustment seat 11 slidably sleeved on the slide rod 12, a rotating head 13 at one end of the axial adjustment screw 10, and a locking nut 14 at the other end of the axial adjustment screw 10. When the rotating head 13 is manually rotated, the axial adjustment screw 10 rotates in place within the sliding groove 301, and the axial adjustment seat 11, driven by the thread, reciprocates linearly along the length of the slide rod 12 and the sliding groove 301, thereby realizing the positional migration of the subsequent acquisition assembly in the axial dimension of the motor housing.

[0024] Specifically, the radial adjustment assembly includes a fixed seat 7 fixedly connected to the axial adjustment seat 11. A locking groove 701 is provided on the fixed seat 7 along the radial direction of the hub motor. A radial adjustment plate 8 is slidably connected in the locking groove 701. A sliding groove 801 is provided on one side of the radial adjustment plate 8. Multiple slots 802 are evenly distributed on both sides of the sliding groove 801. A fixed plate 15 is provided on one side of the locking groove 701 opposite to the sliding groove 801. Control grooves 702 are provided on both sides of the locking groove 701 opposite to the fixed plate 15. A locking pressing block 16 is slidably connected in the control groove 702. A locking spring 17 is connected between one end of the locking groove 701 and the fixed plate 15. A locking block 18 corresponding to the slot 802 is fixedly connected on the locking pressing block 16. The base 6 is fixedly connected to the bottom of the radial adjustment plate 8. When the operator presses the locking block 16 inward, the locking spring 17 is compressed, causing the locking block 18 to completely disengage from the current slot 802. At this time, the radial adjusting plate 8 loses its constraint and can slide radially back and forth along the locking through groove 701. When the locking block 16 is released, the restoring force of the locking spring 17 pushes the locking block 16 outward, causing the locking block 18 to embed into the slot 802 corresponding to the new position, thereby completing the mechanical positioning of the radial adjusting plate 8 in radial depth.

[0025] Specifically, the slot of the card slot 802 has rounded corners, and the end of the card block 18 opposite to the card slot 802 has matching rounded corners.

[0026] Specifically, the elastic fitting component includes a guide cylinder 9 fixedly connected to the base 6. A cavity 901 is formed inside the guide cylinder 9, and a sliding through hole 902 connecting to the outside of the guide cylinder 9 is formed at the bottom of the cavity 901. A guide rod 19 is slidably connected within the sliding through hole 902. A temperature acquisition unit is installed at the bottom of the guide rod 19, and a disc spring 20 is sleeved on the outside of the guide rod 19. The two ends of the disc spring 20 abut against the bottom of the guide cylinder 9 and the temperature acquisition component, respectively. When the temperature acquisition unit is subjected to reverse pressure from the surface of the hub motor 25, it can drive the guide rod 19 to overcome the elastic force of the disc spring 20 and retract into the guide cylinder 9. The continuous pressure generated by the disc spring 20 ensures that the temperature acquisition unit can always be tightly fitted to the measuring point surface of the hub motor 25 housing, compensating for fluctuations in contact thermal resistance caused by vibration during the operation of the hub motor 25 or minor unevenness of the mounting surface.

[0027] Specifically, a limiting ring 21 is fixedly sleeved on one end of the guide rod 19 inside the guide cylinder 9. The outer diameter of the limiting ring 21 is larger than the inner diameter of the sliding through hole 902 to prevent the guide rod 19 from falling out of the guide cylinder 9.

[0028] Specifically, the temperature acquisition unit includes a mounting base 22 fixedly connected to the bottom of the guide rod 19. A miniature temperature probe 23 is mounted on the bottom of the mounting base 22, and the detection end of the miniature temperature probe 23 is hemispherical.

[0029] Specifically, it also includes a wireless signal receiving terminal. The mounting base 22 integrates a wireless signal transmission module, which connects to the wireless signal receiving terminal wirelessly. Temperature data collected by the miniature temperature probe 23 is transmitted via the wireless signal transmission module to the wireless signal receiving terminal for reception and processing. This wireless signal transmission module includes a microprocessor, an analog-to-digital converter circuit, and a radio frequency antenna. The analog electrical signal indicating temperature collected by the miniature temperature probe 23 is first transmitted to the analog-to-digital converter circuit within the mounting base 22. After being converted into a digital signal, it is packaged by the microprocessor according to a protocol and finally transmitted to the external wireless signal receiving terminal via the wireless signal transmission module. This wireless transmission method completely eliminates the risk of cable tangling or breakage that may occur due to motor rotation.

[0030] Specifically, a soft, wear-resistant silicone pad 24 is provided at the mounting through hole 101 of the fixed ring plate 1 and the moving ring plate 2. The inner diameter of the soft, wear-resistant silicone pad 24 is slightly smaller than the diameter of the step 27 of the hub motor 25, so that it will undergo radial compression deformation when it is fitted on the step 27. The elastic restoring force of the silicone increases the friction between the device and the step 27, thereby achieving preliminary axial and radial positioning.

[0031] The operating principle and detailed operation process of this device are as follows: First, the coaxial positioning and installation of the overall frame are performed. The operator places the fixed annular plate 1 and the movable annular plate 2 at opposite ends of the hub motor 25 to be tested. By passing the step 27 of the hub motor 25 through the mounting through hole 101, the soft, wear-resistant silicone pad 24 covering the inner circumference of the mounting through hole 101 makes radial interference contact with the outer diameter of the step 27. During this process, the soft, wear-resistant silicone pad 24 undergoes elastic deformation under pressure, utilizing the high coefficient of friction of silicone to achieve initial axial sliding damping of the device. Subsequently, the mounting slot 201 of the movable annular plate 2 is aligned with the mounting plate 3 for nesting and sliding, and a long bolt 4 is inserted. By rotating and tightening the fastening nut 5, the axial tension force generated by the long bolt 4 forces the fixed annular plate 1 and the movable annular plate 2 closer to the center. This force is converted through the mounting plate 3 into rigid support stress on the periphery of the hub motor 25 housing, thereby constructing a ring-shaped reference platform coaxial with the hub motor 25.

[0032] Next, precise driving and alignment of the axial coordinates of the measurement point are performed. After determining the axial heat source concentration area of ​​the hub motor 25 housing, the operator manually moves the rotating head 13, driving the axial adjusting screw 10 to rotate in place within the sliding groove 301, driving the axial adjusting seat 11 to move precisely back and forth along the trajectory of the slide rod 12. After moving the temperature acquisition unit above the preset axial measurement point, the locking nut 14 is tightened to increase the frictional resistance of the screw rotation, using the mechanical self-locking effect to prevent axial drift during the test and ensure the axial consistency of the measurement point position.

[0033] Subsequently, a radial depth mechanical locking and elastic fitting compensation operation is performed. The operator presses inward on the two symmetrical locking blocks 16 to overcome the preload of the locking spring 17, causing the locking block 18 to completely disengage from the slot 802 on the side of the radial adjustment plate 8. At this point, the radial adjustment plate 8 is unrestrained, and the operator can push it along the slide 801 towards the center of the motor. When the hemispherical end of the miniature temperature probe 23 abuts against the curved surface of the hub motor 25 housing, a small pushing force is applied, causing the guide rod 19 to retract into the guide cylinder 9 against the elastic force of the disc spring 20. During this process, the disc spring 20 is compressed and stores elastic potential energy, applying a continuous downward constant positive pressure to the temperature acquisition unit. After releasing the locking blocks 16, the locking spring 17 releases energy, pushing the locking block 18 into the adjacent slot 802, completing the radial coarse positioning. The principle here is to use the slot 802 to achieve radial rigid limit, while using the small stroke of the disc spring 20 to compensate for the runout caused by the out-of-roundness or vibration of the outer shell when the motor rotates, thus maintaining a constant contact thermal resistance.

[0034] Finally, non-invasive signal acquisition and wireless transmission under rotational conditions are performed. During the high-speed rotational load test phase, the miniature temperature probe 23 senses the instantaneous temperature of the hub motor 25 housing through heat conduction and converts the heat energy into an analog electrical signal. This signal is sampled at high frequency and digitized by the analog-to-digital converter circuit inside the mounting base 22, encoded by the microprocessor, and transmitted as radio waves through the radio frequency antenna. Due to the use of wireless transmission, signal transmission does not rely on physical cables, thus completely avoiding the electromagnetic interference and mechanical entanglement / breakage risks that are easily generated by traditional slip rings or long cables under rotational conditions. The acquired data is fed back to the external terminal in real time. Combined with the maximized envelope contact between the hemispherical probe and the motor surface, the real-time performance and high fidelity of the temperature rise curve acquisition under dynamic conditions are ensured.

[0035] When it is necessary to change the measuring point, the above adjustment steps can be repeated without disassembling the entire frame, which greatly improves the testing efficiency. Through the precise coordination of the mechanical structure, this device achieves high-precision, multi-degree-of-freedom coverage acquisition of motor surface temperature under complex rotational conditions.

[0036] This invention constructs a high-rigidity annular support frame by using a fixed annular plate 1, a moving annular plate 2, and circumferentially distributed mounting plates 3. The entire device is stably suspended on the periphery of the hub motor 25 housing by using the axial locking action of long bolts 4 and fastening nuts 5, thus solving the deviation problem caused by the randomness of the position when manually attaching sensors in the traditional way.

[0037] By cooperating with the axial adjusting screw 10 and the slide bar 12, the axial adjusting seat 11 can drive the temperature acquisition unit to perform precise displacement compensation in the axial direction of the hub motor 25. Combined with the telescopic positioning of the radial adjusting plate 8 within the locking slot 701, omnidirectional coverage of any coordinate point on the hub motor 25 housing is achieved. This multi-dimensional adjustment mechanism replaces the single adhesive attachment method, enabling rapid alignment of preset measurement points during batch testing and ensuring a high degree of consistency in the acquisition position.

[0038] The rigid connection between the temperature acquisition unit and the base 6 is transformed into a flexible contact by using an elastic fitting assembly consisting of a guide cylinder 9, a guide rod 19, and a disc spring 20. During the measurement process, the constant clamping force provided by the disc spring 20 ensures that the miniature temperature probe 23 always presses against the hub motor 25 housing with a preset pressure, effectively eliminating fluctuations in contact thermal resistance caused by uneven manual pressing or motor vibration, and improving the accuracy and repeatability of temperature data acquisition.

[0039] The miniature temperature probe 23 with a hemispherical detection end, combined with a wireless signal transmission module, enables non-invasive monitoring of winding heat conduction without compromising the motor's seal or disassembling the end cover. The wireless data link not only simplifies the wiring complexity at the test site but also avoids evaluation blind spots caused by single-point acquisition limitations, providing comprehensive, accurate, and quantifiable data support for verifying the thermal reliability of the motor under rated load. This device is compact and flexible in adjustment, significantly improving the automation level and production efficiency of hub motor temperature rise testing.

[0040] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0041] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A motor temperature acquisition device for an electric motorcycle, characterized in that, The device includes a fixed annular plate (1) and a movable annular plate (2). Both the fixed annular plate (1) and the movable annular plate (2) have mounting through holes (101) in the middle. The fixed annular plate (1) is fixedly connected to a plurality of mounting plates (3) on the side near the movable annular plate (2). The mounting plates (3) are evenly distributed on the fixed annular plate (1) in a circular pattern. The movable annular plate (2) has mounting through grooves (201) corresponding to the mounting plates (3). The movable annular plate (2) is slidably fitted on the mounting plates (3). The edges of the fixed annular plate (1) and the movable annular plate (2) are fixedly connected by long bolts (4) and fastening nuts (5). The mounting plate (3) is provided with an axial adjustment component. The driving end of the axial adjustment component is provided with a radial adjustment component. The driving end of the adjustment component is provided with a base (6). A temperature acquisition component is provided below the base (6). An elastic fitting component is provided between the temperature acquisition component and the base (6).

2. The electric motorcycle motor temperature acquisition device according to claim 1, characterized in that, The mounting plate (3) is provided with a sliding groove (301); the axial adjustment assembly includes an axial adjustment screw (10) rotatably disposed in the sliding groove (301), an axial adjustment seat (11) is threadedly connected to the axial adjustment screw (10), a slide rod (12) parallel to the axial adjustment screw (10) is provided in the sliding groove (301), the axial adjustment seat (11) is slidably sleeved on the slide rod (12), a rotating head (13) is provided at one end of the axial adjustment screw (10), and a locking nut (14) is provided at the other end of the axial adjustment screw (10).

3. The electric motorcycle motor temperature acquisition device according to claim 2, characterized in that, The radial adjustment assembly includes a fixed seat (7) fixedly connected to the axial adjustment seat (11). A locking groove (701) is provided on the fixed seat (7) along the radial direction of the hub motor. A radial adjustment plate (8) is slidably connected in the locking groove (701). A sliding groove (801) is provided on one side of the radial adjustment plate (8). Multiple slots (802) are evenly distributed on both sides of the sliding groove (801). A fixed plate (15) is provided on one side of the locking groove (701) facing the sliding groove (801). Both sides of the locking through groove (701) are provided with control through grooves (702) facing the fixing plate (15). A locking pressing block (16) is slidably connected in the control through groove (702). A locking spring (17) is connected between one end of the locking through groove (701) and the fixing plate (15). A locking block (18) corresponding to the slot (802) is fixedly connected on the locking pressing block (16). The base (6) is fixedly connected to the bottom of the radial adjustment plate (8).

4. The electric motorcycle motor temperature acquisition device according to claim 3, characterized in that, The slot (802) has a rounded corner, and the end of the card block (18) opposite to the slot (802) has a matching rounded corner.

5. The electric motorcycle motor temperature acquisition device according to claim 1, characterized in that, The elastic fitting component includes a guide cylinder (9) fixedly connected below the base (6). A cavity (901) is provided inside the guide cylinder (9). A sliding through hole (902) communicating with the outside of the guide cylinder (9) is provided at the bottom of the cavity (901). A guide rod (19) is slidably connected inside the sliding through hole (902). A temperature acquisition unit is installed at the bottom of the guide rod (19). A disc spring (20) is sleeved on the outside of the guide rod (19). The two ends of the disc spring (20) abut against the bottom of the guide cylinder (9) and the temperature acquisition component, respectively.

6. The electric motorcycle motor temperature acquisition device according to claim 5, characterized in that, One end of the guide rod (19) located inside the guide cylinder (9) is fixedly fitted with a limiting ring (21), the outer diameter of the limiting ring (21) being larger than the inner diameter of the sliding through hole (902).

7. The electric motorcycle motor temperature acquisition device according to claim 5, characterized in that, The temperature acquisition unit includes a mounting base (22) fixedly connected to the bottom of the guide rod (19). A miniature temperature probe (23) is installed at the bottom of the mounting base (22), and the detection end of the miniature temperature probe (23) is hemispherical.

8. The electric motorcycle motor temperature acquisition device according to claim 7, characterized in that, It also includes a wireless signal receiving terminal. The mounting base (22) integrates a wireless signal transmission module. The wireless signal transmission module and the wireless signal receiving terminal are connected wirelessly. The temperature data collected by the miniature temperature probe (23) is sent to the wireless signal receiving terminal for reception and processing via the wireless signal transmission module.

9. The electric motorcycle motor temperature acquisition device according to claim 1, characterized in that, A soft, wear-resistant silicone pad (24) is provided at the mounting through hole (101) of the fixed ring plate (1) and the moving ring plate (2).

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