CN219394606U - Structure of miniaturized radar - Google Patents

Abstract

The application provides a structure of miniaturized radar belongs to radar technical field. The structure of the miniaturized radar comprises a rotating component and a radar component. The rotating assembly comprises a base, a stator, a rotating seat and a coding piece, wherein the stator is fixed on the base, the stator is positioned in the rotating seat, the rotating seat is rotationally connected with the base, a permanent magnet ring is arranged on the outer circle of the rotating seat, the coding piece is arranged in the stator, and the radar assembly is arranged on the rotating seat. In this application: the rotating assembly is connected with the radar assembly by the base, the structure is more compact, the permanent magnet ring is arranged on the outer circle of the rotary seat to generate rotating power by utilizing the brushless motor principle, the torque is increased, the internal space of the stator is enlarged, belt transmission is omitted, the encoding part is arranged in the stator, the structure is further compact, and finally the size is reduced.

Description

Structure of miniaturized radar

Technical Field

The application relates to the technical field of radars, in particular to a structure of a miniaturized radar.

Background

In the prior art, as shown in fig. 2, the motor 1 realizes torque increase through belt transmission of the large belt pulley 2 so as to drive the radar module to rotate, fig. 2 is an outline drawing of the whole radar including a shell, the outline indicated by 2 is the state of the belt pulley 2 in the shell, the belt pulley 2 is also installed in the shell, the radar firstly adopts belt transmission, power loss exists, secondly, the service life of the radar belt is short, reliability is low, the belt can be used for a long time to generate mechanical fatigue failure phenomenon, the rotating speed is unstable, thus uneven distribution of point cloud is caused, finally, the belt transmission increases the whole volume, and the radar is inconvenient to install on a smaller device such as an unmanned aerial vehicle, so that the miniaturization of the radar is a future trend, and the application range is wider.

Disclosure of Invention

In order to make up for the above drawbacks, the present application provides a structure of a miniaturized radar, which aims to improve the problems mentioned in the background art.

Embodiments of the present application provide a structure of a miniaturized radar including a rotating assembly and a radar assembly. The rotating assembly comprises a base, a stator, a rotating seat and a coding piece, wherein the stator is fixed on the base, the stator is positioned in the rotating seat, the rotating seat is rotationally connected with the base, a permanent magnet ring is arranged on the outer circle of the rotating seat, the coding piece is arranged in the stator, and the radar assembly is arranged on the rotating seat.

In a specific embodiment, the rotating center is fixedly connected with a rotating shaft, a bearing is sleeved on the rotating shaft, and the rotating shaft is rotatably connected with the base through the bearing.

In the implementation process, the outer circle of the rotary seat is provided with the annular permanent magnet ring, the rotary seat center is provided with the rotary shaft, the space between the permanent magnet ring and the rotary shaft center is used for installing the stator, and the two bearings are sleeved on the rotary shaft through the limiting clamping sleeve so as to ensure the stability and smoothness of rotation.

In a specific embodiment, the rotating assembly further comprises a coding part, the coding part comprises a grating module and a code disc, the grating module is installed in the rotating shaft, and the code disc is fixed on the base.

In a specific embodiment, the coding member further includes a circuit board a, and the circuit board a is disposed on the base.

In the implementation process, the optical grating module is internally provided with the transmitting and receiving elements, along with the rotation of the rotating shaft and the rotating seat, the optical grating module transmits the light source to radially penetrate through the through hole on the rotating seat, sequentially irradiates teeth on the code disc and penetrates through the teeth to form pulse signals, the corresponding calculating module is arranged on the circuit board A and plays a role of an encoder so as to calculate and monitor the rotating angle, and the optical grating module has a large volume and is arranged in the rotating shaft of the center of the stator, and the code disc is thinner and is arranged in a gap between the outer part of the permanent magnet ring and the base.

In a specific embodiment, the circuit board a is provided with an I/O port.

In the implementation process, an opening is arranged on the base at the port and used for connecting a plug-in cable with other equipment.

In a specific embodiment, the radar assembly comprises a laser transceiver module and a light transmission frame, wherein the laser transceiver module is arranged on the light transmission frame, and the light transmission frame is arranged on the swivel base.

In a specific embodiment, the radar assembly further comprises a circuit board B, the circuit board B being mounted on the swivel mount.

In the implementation process, two light passing holes are formed in the light passing frame, mounting holes are formed in two sides of the light passing frame so as to be mounted on the rotary base, two transmitting and receiving devices in the laser receiving and transmitting module are respectively mounted in the two light passing holes of the light passing frame, and a circuit board B is provided with a circuit related to a radar and is used for summarizing and calculating rotation data on the circuit board A.

In a specific embodiment, the radar assembly further comprises a shield covering the radar assembly, the shield being fixedly connected to the base.

In the above implementation, a circular shield protects the rotating radar assembly and the laser may penetrate the shield.

Compared with the prior art, the beneficial effects of this application are: the rotating assembly is connected with the radar assembly by the base, the structure is more compact, the permanent magnet ring is arranged on the outer circle of the rotary seat to generate rotating power by utilizing the brushless motor principle, the torque is increased, the internal space of the stator is enlarged, belt transmission is omitted, the encoding part is arranged in the stator, the structure is further compact, and finally the size is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present application and therefore should not be considered as limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a miniaturized radar provided in an embodiment of the present application;

FIG. 2 is a schematic diagram of a prior art radar driving structure;

fig. 3 is a schematic structural cross-sectional view of a miniaturized radar according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a connection relationship between a stator and a rotating shaft according to an embodiment of the present application.

In the figure: a 100-rotation assembly; 110-a base; 120-stator; 130-transposition; 140-coding pieces; 141-a grating module; 142-code wheel; 143-circuit board a; 144-port; 150-permanent magnet rings; 160-rotating shaft; 170-a bearing; 200-radar assembly; 210-a laser transceiver module; 220-a light transmission frame; 230-circuit board B; 240-shield.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

Referring to fig. 1, 3 and 4, the present application provides a miniaturized radar structure including a rotating assembly 100 and a radar assembly 200. The rotating assembly 100 comprises a base 110, a stator 120, a rotating seat 130 and a coding piece 140, wherein the stator 120 is fixed on the base 110, the stator 120 is positioned in the rotating seat 130, the rotating seat 130 is rotationally connected with the base 110, a permanent magnet ring 150 is arranged on the outer circle of the rotating seat 130, the coding piece 140 is arranged in the stator 120, and the radar assembly 200 is arranged on the rotating seat 130. The rotating assembly 100 is connected with the radar assembly 200 by the base 110, the structure is more compact, the permanent magnet ring 150 is arranged on the outer circle of the swivel 130, and the rotating power is generated by using the brushless motor principle, so that the torque is increased, the internal space of the stator 120 is enlarged, the belt transmission is omitted, the encoding piece 140 is arranged in the stator 120, the structure is further compact, and finally the size is reduced.

Referring to fig. 1, 3 and 4, a rotating shaft 160 is fixedly connected to the center of the rotating base 130, a bearing 170 is sleeved on the rotating shaft 160, and the rotating shaft 160 is rotatably connected to the base 110 through the bearing 170. The outer circle of the rotary seat 130 is provided with an annular permanent magnet ring 150, the center of the rotary seat 130 is provided with a rotary shaft 160, the space between the permanent magnet ring 150 and the center of the rotary shaft 160 is used for installing the stator 120, and two bearings 170 are sleeved on the rotary shaft 160 through limiting clamping sleeves so as to ensure stable and smooth rotation.

Referring to fig. 1, 3 and 4, the rotating assembly 100 further includes a coding member 140, the coding member 140 includes a grating module 141 and a code disc 142, the grating module 141 is installed in the rotating shaft 160, and the code disc 142 is fixed on the base 110. The coding member 140 further includes a circuit board a143, and the circuit board a143 is disposed on the base 110. The grating module 141 is internally provided with transmitting and receiving elements, along with the rotation of the rotating shaft 160 and the rotating base 130, the grating module 141 transmits light sources to radially penetrate through the through holes on the rotating base 130, sequentially irradiates teeth on the code disc 142 and penetrates through the teeth to form pulse signals, and the corresponding calculating module is arranged on the circuit board A143 to play a role of an encoder so as to calculate and monitor the rotating angle.

Referring to fig. 1 and 3, the circuit board a143 is provided with an I/O port 144. An opening is provided in the base 110 at the port 144 for connection of a patch cable to other equipment.

Referring to fig. 1, 3 and 4, the radar assembly 200 includes a laser transceiver module 210 and a light transmission frame 220, the laser transceiver module 210 is mounted on the light transmission frame 220, and the light transmission frame 220 is mounted on the swivel 130. The radar assembly 200 further includes a circuit board B230, the circuit board B230 being mounted on the swivel 130. Two light transmission holes are formed in the light transmission frame 220, mounting holes are formed in two sides of the light transmission frame 220 so as to be mounted on the swivel base 130, two transmitting and receiving devices in the laser transceiver module 210 are respectively mounted in the two light transmission holes of the light transmission frame 220, and a circuit board B230 is provided with a circuit related to radar and is used for summarizing and calculating rotation data on the circuit board A143.

Referring to fig. 1 and 3, the radar assembly 200 further includes a shroud 240, the shroud 240 covers the radar assembly 200, and the shroud 240 is fixedly connected to the base 110. A circular shield 240 protects the rotating radar assembly 200 and laser light may penetrate the shield 240.

The working principle of the structure of the miniaturized radar is as follows: the stator 120 is located in the swivel mount 130, the round permanent magnet 150 near the outer circle of the swivel mount 130 is rotated by using the brushless motor principle, because the magnetic force action of the stator 120 and the permanent magnet is located at the outer circle and close to the outer diameter of the radar component 200, the stator has a larger arm of force, so that enough larger torque is generated, the coil wound on the stator 120 can be reduced, the thickness is reduced, the space in the stator 120 is increased to install the encoding part 140, and the whole device is smaller and more compact because the swivel mount 130 is directly connected with the radar component 200 and the rotating component 100, so that the rotating component 100 is connected with the radar component 200 by using the base 110, the structure is more compact, the permanent magnet 150 is arranged at the outer circle of the swivel mount 130 to generate rotary power by using the brushless motor principle, the torque is increased, the inner space of the stator 120 is enlarged, the belt transmission is omitted, the encoding part 140 is installed inside the stator 120, the structure is further compact, and finally the volume is reduced.

The above is only an example of the present application, and is not intended to limit the scope of the present application, and various modifications and variations will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

Claims (8)

1. A structure of a miniaturized radar, comprising

The rotary assembly (100), the rotary assembly (100) comprises a base (110), a stator (120), a rotary seat (130) and a coding piece (140), the stator (120) is fixed on the base (110), the stator (120) is positioned in the rotary seat (130), the rotary seat (130) is rotationally connected with the base (110), a permanent magnet ring (150) is arranged on the outer circle of the rotary seat (130), and the coding piece (140) is arranged in the stator (120);

-a radar assembly (200), the radar assembly (200) being arranged on the swivel mount (130).

2. The miniaturized radar structure according to claim 1, wherein the center of the swivel base (130) is fixedly connected with a rotating shaft (160), a bearing (170) is sleeved on the rotating shaft (160), and the rotating shaft (160) is rotatably connected with the base (110) through the bearing (170).

3. The miniaturized radar according to claim 2, wherein the rotating assembly (100) further comprises a coding member (140), the coding member (140) comprises a grating module (141) and a code wheel (142), the grating module (141) is installed in the rotating shaft (160), and the code wheel (142) is fixed on the base (110).

4. A miniaturized radar construction according to claim 3, characterized in that the coding element (140) further comprises a circuit board a (143), the circuit board a (143) being arranged on the base (110).

5. The structure of a miniaturized radar according to claim 4, characterized in that the circuit board a (143) is provided with I/O ports (144).

6. The miniaturized radar of claim 5 wherein the radar assembly (200) includes a laser transceiver module (210) and a light transmission frame (220), the laser transceiver module (210) being mounted on the light transmission frame (220), the light transmission frame (220) being mounted on the swivel mount (130).

7. The miniaturized radar of claim 6 wherein the radar assembly (200) further comprises a circuit board B (230), the circuit board B (230) being mounted on the swivel mount (130).

8. The miniaturized radar of claim 7 wherein the radar assembly (200) further comprises a shroud (240), the shroud (240) covering the radar assembly (200), the shroud (240) being fixedly connected to the base (110).