CN220342134U - Laser radar motor structure - Google Patents

Abstract

The utility model discloses a laser radar motor structure; the laser radar motor structure includes: stator assembly, rotor assembly and assembly; the rotor assembly is matched with the stator assembly, the rotor assembly comprises a prism, a magnetic ring, an outer rotor, a bearing and a pressing plate, the prism is provided with a containing cavity, the outer rotor is arranged in the containing cavity, the magnetic ring is arranged in the outer rotor, the bearing is arranged in the outer rotor, the pressing plate is arranged in the containing cavity and connected with the outer rotor, and the stator assembly penetrates through the bearing to be connected with the assembly. According to the utility model, the rotor assembly is matched with the stator assembly, the prism is provided with the accommodating cavity, the outer rotor is arranged in the accommodating cavity, the magnetic ring is arranged in the outer rotor, the bearing is arranged in the outer rotor, the pressing plate is connected with the outer rotor, the shaft core penetrates through the bearing and is connected with the cover plate, so that the dynamic balance state of the laser radar motor is assembled, the cover plate is assembled to fix and connect the bottom plate, the assembly process is simplified, and the production efficiency can be effectively improved.

Description

Laser radar motor structure

Technical Field

The utility model relates to the technical field of radar motors, in particular to a laser radar motor structure.

Background

The laser radar motor is mainly applied to the field of automobiles and is used for assisting driving of automobiles. The vehicle-mounted motor has a particularly severe NVH (noise) standard, and the primary factor for solving the NVH is to solve the dynamic balance of the motor; after the existing rotor assembly is assembled into the stator assembly, the upper end of the shaft core is sleeved with the opposite-top spring, then sleeved with the upper end of the shaft core, and the opposite-top spring is fixed by bolts and pressed downwards, so that the upper end of the motor is fixed and is not connected with the lower base plate, the motor is in free rotation balance, and an upper cover plate is assembled to fix and connect the lower base plate.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a laser radar motor structure.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the embodiment of the utility model provides a laser radar motor structure, which comprises: stator assembly, rotor assembly and assembly; the rotor assembly is matched with the stator assembly, the assembly is connected with the stator assembly and the rotor assembly, the rotor assembly comprises a prism, a magnetic ring, an outer rotor, a bearing and a pressing plate, the prism is provided with an accommodating cavity, the outer rotor is arranged in the accommodating cavity, the magnetic ring is arranged in the outer rotor, the bearing is arranged in the outer rotor, the pressing plate is arranged in the accommodating cavity and is connected with the outer rotor, and the stator assembly penetrates through the bearing and is connected with the assembly.

In a specific embodiment, the stator assembly includes a bottom plate, a shaft core, a chipset, an enameled wire and a circuit board, wherein the chipset is sleeved on the shaft core, one end of the shaft core is connected with the bottom plate, the other end of the shaft core penetrates through the bearing and is connected with the assembly, the enameled wire is wound on the chipset, one end of the circuit board is mounted on the bottom plate, the other end of the circuit board is connected with the assembly, and the chipset is electrically connected with the circuit board.

In a specific embodiment, balance holes are formed in the pressing plate and the outer rotor.

In a specific embodiment, the prism is provided with a plurality of sharp corners, and the pressing plate is provided with a notch, and the notch is aligned with one of the sharp corners.

In a specific embodiment, a gasket is further bonded to the bottom of the pressing plate.

In a specific embodiment, the outer rotor is provided with a mounting cavity, and the bearing is mounted in the mounting cavity.

In a specific embodiment, a limiting groove is formed in the mounting cavity, and the bearing is mounted in the limiting groove.

In a specific embodiment, a first oil accumulation groove is further formed in the top of the installation cavity.

In a specific embodiment, the assembly component comprises an elastic piece and a cover plate, the elastic piece is sleeved on the shaft core and is abutted to the bearing, the cover plate is connected with the shaft core through a screw, and the circuit board is connected with the cover plate.

In a specific embodiment, the cover plate is provided with a mounting groove, the circuit board is mounted in the mounting groove, and a second oil accumulation groove is further formed in the cover plate.

Compared with the prior art, the laser radar motor structure has the beneficial effects that: through rotor subassembly and stator module matched with, assembly subassembly and stator module and rotor subassembly are connected, rotor module includes the prism, the magnetic ring, the external rotor, bearing and clamp plate, the prism is equipped with holds the chamber, the chamber is held in the external rotor locating, the magnetic ring is installed in the external rotor, the bearing is installed inside the external rotor, the clamp plate is located to hold the intracavity and is connected with the external rotor, stator module passes the bearing and is connected with assembly subassembly, so that the assembly of laser radar motor dynamic balance state is accomplished, the assembly apron is with fixed and connection bottom plate again, the assembly process has been simplified, can effectively improve production efficiency, the practicality is strong.

The utility model is further described below with reference to the drawings and specific embodiments.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a laser radar motor structure according to the present utility model;

FIG. 2 is a schematic view of the back of the lidar motor structure according to the present utility model;

FIG. 3 is a schematic cross-sectional view of a lidar motor structure provided by the present utility model;

FIG. 4 is an exploded view of a lidar motor according to the present utility model;

FIG. 5 is a schematic explosion diagram of a lidar motor structure according to the present utility model;

FIG. 6 is a schematic view of a rotor assembly according to the present utility model;

fig. 7 is a schematic structural diagram of a stator assembly according to the present utility model.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and the detailed description, in order to make the objects, technical solutions and advantages of the present utility model more apparent.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be attached, detached, or integrated, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms should not be understood as necessarily being directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, one skilled in the art can combine and combine the different embodiments or examples described in this specification.

Referring to the specific embodiments shown in fig. 1 to 7, the utility model discloses a lidar motor structure, which comprises: stator assembly 10, rotor assembly 20, and assembly 30; the rotor assembly 20 is matched with the stator assembly 10, the assembly 30 is connected with the stator assembly 10 and the rotor assembly 20, the rotor assembly 20 comprises a prism 21, a magnetic ring 22, an outer rotor 23, a bearing 24 and a pressing plate 25, the prism 21 is provided with a containing cavity 211, the outer rotor 23 is arranged in the containing cavity 211, the magnetic ring 22 is arranged in the outer rotor 23, the bearing 24 is arranged in the outer rotor 23, the pressing plate 25 is arranged in the containing cavity 211 and is connected with the outer rotor 23, and the stator assembly 10 is connected with the assembly 30 through the bearing 24.

Specifically, the magnet ring 22 is first installed in the outer rotor 23 (i.e., the magnet ring 22 is installed in a bottom cavity of the outer rotor 23, which is in communication with the installation cavity 231), then the bearing 24 is pressed into the outer rotor 23 (i.e., the installation cavity 231), then the outer rotor 23 is embedded in the accommodating cavity 211, so that the prism 21 is clamped to an end surface of the outer rotor 23, and then the pressing plate 25 is fixed to the outer rotor 23.

In one embodiment, a gasket 26 is further bonded to the bottom of the platen 25.

Specifically, the gasket 26 plays a role of a flat pad, increases the contact area, reduces the gap, and makes the structure between the pressing plate 25 and the outer rotor 23 more stable, and is not easy to loose.

Preferably, the gasket 26 is made of rubber, and is resilient and wear resistant.

In one embodiment, the outer rotor 23 is provided with a mounting cavity 231, and the bearing 24 is mounted in the mounting cavity 231.

Specifically, the bearing 24 is mounted in the mounting cavity 231, so that the bearing 24 is not easily detached.

In one embodiment, a limiting groove (not shown) is disposed in the mounting cavity 231, and the bearing 24 is mounted in the limiting groove.

Specifically, through installing bearing 24 in the spacing inslot, play the limiting displacement, further make bearing 24 be difficult for appearing droing loose's condition.

Preferably, the number of the limiting grooves is 2, and the 2 limiting grooves are distributed in the mounting cavity 231 up and down, and each limiting groove is internally provided with one bearing 24.

Preferably, the pressing plate 25 is connected to the outer rotor 23 by a screw, so that the assembly and disassembly are convenient, and the stability is high.

In an embodiment, a first oil sump 232 is further disposed at the top of the installation cavity 231.

Specifically, the first oil sump 232 is located above the bearing 24 for collecting oil when the rotor assembly 20 is rotating.

In one embodiment, the prism 21 has a plurality of sharp corners 212, and the platen 25 has a notch 251, and the notch 251 is aligned with one of the sharp corners 212.

Specifically, the notch 251 is aligned with one of the sharp corners 212, and functions as a base for feeding back the positioning signal.

Specifically, the number of sharp corners 212 is not particularly limited herein. Preferably, the number of sharp corners 212 is 5.

In an embodiment, the stator assembly 10 includes a base plate 11, a shaft core 12, a chipset 13, an enameled wire 14 and a circuit board 15, the chipset 13 is sleeved on the shaft core 12, one end of the shaft core 12 is connected to the base plate 11, the other end passes through the bearing 24 and is connected to the assembly 30, the enameled wire 14 is wound on the chipset 13, one end of the circuit board 15 is mounted on the base plate 11, the other end is connected to the assembly 30, and the chipset 13 is electrically connected to the circuit board 15.

Specifically, the shaft core 12 is pressed into the middle hole of the chipset 13, then the wire of the enameled wire 14 is wound, one end of the circuit board 15 is riveted into the bottom plate 11, and finally the shaft core 12 is pressed into the bottom plate 11.

Preferably, the circuit board 15 is an FPC board, which can be freely bent, curled, folded, and has strong toughness.

In an embodiment, the pressing plate 25 and the outer rotor 23 are provided with balance holes 27, and the balance holes 27 are used for placing balance weights, so that the balance performance of the lidar motor is stronger when the lidar motor rotates.

Preferably, the plurality of balance holes 27 are uniformly distributed, and the number thereof is not particularly limited.

In an embodiment, the assembly 30 includes an elastic member 31 and a cover plate 32, the elastic member 31 is sleeved on the shaft core 12 and abuts against the bearing 24, the cover plate 32 is connected with the shaft core 12 through a screw, and the circuit board 15 is connected with the cover plate 32.

Specifically, the elastic member 31 is sleeved on the upper end of the shaft core 12 and abuts against the bearing 24, then the cover plate 32 is connected with the shaft core 12 through a screw, and finally the cover plate 32 is fixed to the bottom plate 11 through the screw. The elastic member 31 plays a role of eliminating the gap of the bearing 24 itself so that the stability of the lidar motor is improved.

Preferably, the elastic member 31 is a spring, and has high stability.

In an embodiment, the cover plate 32 is provided with a mounting groove 321, the circuit board 15 is mounted in the mounting groove 321, and a second oil accumulation groove 322 is further disposed inside the cover plate 32.

Specifically, the circuit board 15 is mounted in the mounting groove 321 after being bent at one end far from the bottom plate 11, and then is fixed by a screw, so that the space is saved and the connection is stable. Specifically, the second oil sump 322 is used for collecting oil stains when the lidar motor rotates.

Specifically, this lidar motor structure cooperatees with stator module 10 through rotor module 20, assembly subassembly 30 is connected with stator module 10 and rotor module 20, rotor module 20 includes prism 21, magnetic ring 22, external rotor 23, bearing 24 and clamp plate 25, prism 21 is equipped with holds chamber 211, external rotor 23 locates and holds chamber 211, magnetic ring 22 installs in external rotor 23, bearing 24 installs in external rotor 23 is inside, clamp plate 25 is located and holds intracavity 211 and be connected with external rotor 23, axle core 12 passes bearing 24 and is connected with apron 32, so that lidar motor dynamic balance state assembly is accomplished, the apron 32 is with fixed and connection bottom plate 11 again, the assembly process has been simplified, can effectively improve production efficiency, the practicality is strong.

The laser radar motor structure is suitable for the vehicle-mounted auxiliary driving field and the roadbed monitoring field, the brushless outer rotor is adopted to rotate to drive the prism to rotate, and NVH meets the requirements in the operation process.

The foregoing embodiments are preferred embodiments of the present utility model, and in addition, the present utility model may be implemented in other ways, and any obvious substitution is within the scope of the present utility model without departing from the concept of the present utility model.

Claims (8)

1. A lidar motor structure comprising: stator assembly, rotor assembly and assembly; the rotor assembly is matched with the stator assembly, the assembly is connected with the stator assembly and the rotor assembly, the rotor assembly comprises a prism, a magnetic ring, an outer rotor, a bearing and a pressing plate, the prism is provided with a containing cavity, the outer rotor is arranged in the containing cavity, the magnetic ring is arranged in the outer rotor, the bearing is arranged in the outer rotor, the pressing plate is positioned in the containing cavity and is connected with the outer rotor, and the stator assembly penetrates through the bearing to be connected with the assembly; balance holes are formed in the pressing plate and the outer rotor; the prism is provided with a plurality of sharp corners, the pressing plate is provided with a notch, and the notch is aligned with one of the sharp corners.

2. The lidar motor structure of claim 1, wherein the stator assembly comprises a bottom plate, a shaft core, a chipset, an enameled wire and a circuit board, the chipset is sleeved on the shaft core, one end of the shaft core is connected to the bottom plate, the other end of the shaft core penetrates through the bearing to be connected with the assembly, the enameled wire is wound on the chipset, one end of the circuit board is mounted on the bottom plate, the other end of the circuit board is connected to the assembly, and the chipset is electrically connected with the circuit board.

3. The lidar motor structure of claim 2, wherein the bottom of the pressure plate is further bonded with a gasket.

4. The lidar motor structure of claim 2, wherein the outer rotor is provided with a mounting cavity, and the bearing is mounted in the mounting cavity.

5. The lidar motor structure of claim 4, wherein the mounting cavity is provided with a limiting groove, and the bearing is mounted in the limiting groove.

6. The lidar motor structure of claim 4, wherein the top of the mounting cavity is further provided with a first oil sump.

7. The lidar motor structure according to claim 2, wherein the assembly component comprises an elastic member and a cover plate, the elastic member is sleeved on the shaft core and abuts against the bearing, the cover plate is connected with the shaft core through a screw, and the circuit board is connected with the cover plate.

8. The lidar motor structure of claim 7, wherein the cover plate is provided with a mounting groove, the circuit board is mounted in the mounting groove, and a second oil accumulation groove is further formed in the cover plate.