PCB layout structure of UWB anti-collision radar

Abstract

The PCB layout structure of the UWB anti-collision radar comprises a PCB front surface and a PCB back surface, the PCB front surface comprises a power supply unit, an ultra-wideband chip, a connector unit, a low-power-consumption Bluetooth unit, a Bluetooth antenna unit and a first clearance area, the upper part of the PCB front surface is provided with the power supply unit which is separated from other units, and the lower part of the PCB front surface is provided with a second clearance area. An ultra-wideband chip is arranged on the lower left side of the power supply unit, a connector unit is arranged on the lower right side of the power supply unit, a low-power-consumption Bluetooth unit is arranged on the lower left side of the connector unit, the low-power-consumption Bluetooth unit and the ultra-wideband chip are arranged in a separated mode, a first clearance area is arranged at the lower left corner of the front face of the PCB, and a Bluetooth antenna unit is arranged in the first clearance area. And the back surface of the PCB comprises a UWB transmitting antenna unit, a first receiving antenna unit, a second receiving antenna unit and a second clearance area. The PCB layout structure of the UWB anti-collision radar provided by the utility model is more compact and concise, is easier in wiring, and accords with the development trend of miniaturization of anti-collision radars.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-collision radars, and particularly to a PCB layout structure of a UWB anti-collision radar. Background Art

[0002] An anti-collision radar system usually consists of several sensors, a set of microcontrollers and an alarm device. Its working principle is to use ultrasonic or microwave signals. Under the command of the microcontroller, the sensors complete the signal transmission and reception, calculate the distance of the object to be measured by comparing the signal return time or other methods, and then remind the driver through the alarm device, thereby improving driving safety. However, under the requirement of the miniaturization of the anti-collision radar system, the high integration of modules further intensifies the challenges of layout design. It is necessary to integrate multiple modules in a limited space while ensuring stable performance.

[0003] Therefore, it is necessary to provide a PCB layout structure of a UWB anti-collision radar to solve the above problems. Summary of the Utility Model

[0004] Aiming at the problems and deficiencies existing in the prior art, the utility model provides a PCB layout structure of a UWB anti-collision radar, which is more compact, concise, and easier to wire, meeting the development trend of the miniaturization of anti-collision radars.

[0005] The technical solution adopted by the utility model to solve the above technical problems is to provide a PCB layout structure of a UWB anti-collision radar, which is characterized in that it includes a PCB front side and a PCB back side. The PCB front side includes a power supply unit, an ultra-wideband chip, a connector unit, a low-power Bluetooth unit, a Bluetooth antenna unit and a first clearance area. The power supply unit separated from other units is arranged at the upper part of the PCB front side. The ultra-wideband chip is arranged at the lower left side of the power supply unit. The connector unit is arranged at the lower right side of the power supply unit. The low-power Bluetooth unit is arranged at the lower left side of the connector unit. The low-power Bluetooth unit is separated from the ultra-wideband chip. The first clearance area is arranged at the lower left corner of the PCB front side, and the Bluetooth antenna unit is arranged in the first clearance area;

[0006] The PCB back side includes a UWB transmitting antenna unit, a first receiving antenna unit, a second receiving antenna unit and a second clearance area.

[0007] Preferably, the transmitting antenna unit is arranged on the left side of the PCB back side. The first receiving antenna unit is arranged at the upper right side of the transmitting antenna unit. The second receiving antenna unit is arranged at the lower right side of the transmitting antenna unit. The second clearance area is arranged at the position corresponding to the first clearance area at the lower left corner of the PCB back side.

[0008] Preferably, the power supply unit, the ultra-wideband chip, the connector unit, the low-power Bluetooth unit, and the Bluetooth antenna unit are all independently arranged.

[0009] Preferably, the spacing distance between the ultra-wideband chip and the low-power Bluetooth unit is greater than 2 mm.

[0010] Preferably, the spacing distance between the power supply unit and the ultra-wideband chip, and the spacing distance between the power supply unit and the low-power Bluetooth unit are both greater than 2 mm.

[0011] Preferably, the spacing distance between the transmitting antenna unit and the first receiving antenna unit, and the spacing distance between the transmitting antenna unit and the second receiving antenna unit are both greater than 3 mm.

[0012] Preferably, there is no wiring on any layer within the first clearance area.

[0013] Preferably, there is no wiring on any layer and no components within the second clearance area.

[0014] The positive and progressive effects of the present utility model are as follows: A PCB layout structure of a UWB anti-collision radar provided by the present utility model includes a front side and a back side of the PCB. The front side of the PCB includes a power supply unit, an ultra-wideband chip, a connector unit, a low-power Bluetooth unit, a Bluetooth antenna unit, and a first clearance area. The power supply unit is arranged separately from other units at the upper part of the front side of the PCB. The ultra-wideband chip is arranged at the lower left side of the power supply unit. The connector unit is arranged at the lower right side of the power supply unit. The low-power Bluetooth unit is arranged at the lower left side of the connector unit. The low-power Bluetooth unit is arranged separately from the ultra-wideband chip. The first clearance area is arranged at the lower left corner of the front side of the PCB. The Bluetooth antenna unit is arranged within the first clearance area; the back side of the PCB includes a transmitting antenna unit, a first receiving antenna unit, a second receiving antenna unit, and a second clearance area. By adopting a modular and independent layout, the influence and interference between each component unit are effectively reduced;

[0015] Further, the transmitting antenna unit is arranged on the left side of the back side of the PCB. The first receiving antenna unit is arranged at the upper right side of the transmitting antenna unit. The second receiving antenna unit is arranged at the lower right side of the transmitting antenna unit. The second clearance area is arranged at the position corresponding to the first clearance area at the lower left corner of the back side of the PCB. By adopting the design structure of the front side and the back side of the PCB, the Bluetooth antenna and the UWB antenna are respectively arranged on the front side and the back side of the PCB, eliminating the mutual interference between the two;

[0016] Furthermore, only the transmitting and receiving antennas of UWB are arranged on the back of the PCB, and there are no other components, making the PCB structure of the collision avoidance radar more compact and concise, and the wiring easier, which conforms to the development trend of miniaturization of the collision avoidance radar. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention, rather than all embodiments. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 FIG. is a schematic structural diagram of the front layout of the PCB of a PCB layout structure of a UWB collision avoidance radar according to a preferred embodiment of the present invention.

[0019] Figure 2 FIG. is a schematic structural diagram of the back layout of the PCB of a PCB layout structure of a UWB collision avoidance radar according to a preferred embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, rather than all, embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] The following will detail the technical solutions of the present invention with specific embodiments.

[0022] This embodiment provides a PCB layout structure of a UWB collision avoidance radar, which includes a PCB front side 1 and a PCB back side 2. Different functional component units are arranged on both the PCB front side 1 and the PCB back side 2, and in order to reduce the mutual influence between the component units, each component unit adopts an independent and compact layout.

[0023] As Figure 1 shown, the PCB front side 1 includes a power supply unit 11, an ultra-wideband chip 12, a connector unit 13, a low-power Bluetooth unit 14, a Bluetooth antenna unit 15, and a first clearance area 16.

[0024] In this embodiment, a power supply unit 11 is disposed at the upper part of the front side 1 of the PCB. An ultra-wideband chip 12 is disposed at the lower left side of the power supply unit 11. A connector unit 13 is disposed at the lower right side of the power supply unit 11. A low-power Bluetooth unit 14 separated from the ultra-wideband chip 12 is disposed at the lower left side of the connector unit 13. In order to avoid the mutual influence between the low-power Bluetooth unit 14 and the ultra-wideband chip 12, the spacing distance between the two is greater than 2 mm.

[0025] Further, since the main device of the power supply unit 11 is a DC / DC converter, its switching frequency will cause certain interference to the ultra-wideband chip 12 and the low-power Bluetooth unit 14. Therefore, the spacing distance between the power supply unit 11 and the ultra-wideband chip 12, and the spacing distance between the power supply unit 11 and the low-power Bluetooth unit 14 are both greater than 2 mm to reduce interference.

[0026] In this embodiment, a first clearance area 16 is disposed at the lower left corner of the front side 1 of the PCB. A Bluetooth antenna unit 15 is disposed in the first clearance area 16. In the first clearance area 16, except for the Bluetooth antenna unit 15, there is no wiring on any layer and no other components.

[0027] As Figure 2 shown, the back side 2 of the PCB includes a UWB transmitting antenna unit 21, a first receiving antenna unit 22, a second receiving antenna unit 23, and a second clearance area 24.

[0028] In this embodiment, a transmitting antenna unit 21 is disposed on the left side of the back side 2 of the PCB. A first receiving antenna unit 22 is disposed at the upper right side of the transmitting antenna unit 21. A second receiving antenna unit 23 is disposed at the lower right side of the transmitting antenna unit 21. The spacing distance between the transmitting antenna unit 21 and the first receiving antenna unit 22, and the spacing distance between the transmitting antenna unit 21 and the second receiving antenna unit 23 are both greater than 3 mm.

[0029] In this embodiment, a second clearance area 24 is disposed at the position corresponding to the first clearance area 16 at the lower left corner of the back side 2 of the PCB. In the second clearance area 24, there is no wiring on any layer and no components.

[0030] The utility model designs a PCB layout structure of a UWB anti-collision radar, and the structure has the following positive effects during use:

[0031] A PCB layout structure of a UWB anti-collision radar, which includes a PCB front side and a PCB back side. The PCB front side includes a power supply unit, an ultra-wideband chip, a connector unit, a low-power Bluetooth unit, a Bluetooth antenna unit, and a first clearance area. The power supply unit separated from other units is arranged at the upper part of the PCB front side. The ultra-wideband chip is arranged at the lower left side of the power supply unit. The connector unit is arranged at the lower right side of the power supply unit. The low-power Bluetooth unit is arranged at the lower left side of the connector unit. The low-power Bluetooth unit is separated from the ultra-wideband chip. The first clearance area is arranged at the lower left corner of the PCB front side. The Bluetooth antenna unit is arranged in the first clearance area. The PCB back side includes a transmitting antenna unit, a first receiving antenna unit, a second receiving antenna unit, and a second clearance area. By adopting a modular independent layout, the influence and interference between each component unit are effectively reduced;

[0032] Further, the transmitting antenna unit is arranged on the left side of the PCB back side. The first receiving antenna unit is arranged at the upper right side of the transmitting antenna unit. The second receiving antenna unit is arranged at the lower right side of the transmitting antenna unit. The second clearance area is arranged at the position corresponding to the first clearance area at the lower left corner of the PCB back side. By adopting the PCB front side and back side design structure, the Bluetooth antenna and the UWB antenna are respectively arranged on the PCB front side and back side, eliminating the mutual interference between the two;

[0033] Further, only the UWB transmitting and receiving antennas are arranged on the PCB back side, and there are no other components, making the PCB structure of the anti-collision radar more compact, simple, and easier to wire, meeting the development trend of miniaturization of the anti-collision radar.

[0034] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention.

Claims

1. A PCB layout structure of a UWB anti-collision radar, characterized in that, It includes the front side of the PCB and the back side of the PCB. The front side of the PCB includes a power supply unit, an ultra-wideband chip, a connector unit, a low-power Bluetooth unit, a Bluetooth antenna unit, and a first clearance area. The power supply unit separated from other units is arranged at the upper part of the front side of the PCB. The ultra-wideband chip is arranged at the lower left side of the power supply unit. The connector unit is arranged at the lower right side of the power supply unit. The low-power Bluetooth unit is arranged at the lower left side of the connector unit. The low-power Bluetooth unit is separated from the ultra-wideband chip in layout. The first clearance area is arranged at the lower left corner of the front side of the PCB. The Bluetooth antenna unit is arranged in the first clearance area; The back side of the PCB includes a UWB transmitting antenna unit, a first receiving antenna unit, a second receiving antenna unit, and a second clearance area.

2. The PCB layout structure of a UWB anti-collision radar according to claim 1, characterized in that The transmitting antenna unit is arranged on the left side of the back side of the PCB. The first receiving antenna unit is arranged at the upper right side of the transmitting antenna unit. The second receiving antenna unit is arranged at the lower right side of the transmitting antenna unit. The second clearance area is arranged at the position corresponding to the first clearance area at the lower left corner of the back side of the PCB.

3. The PCB layout structure of a UWB anti-collision radar according to claim 1, characterized in that, The power supply unit, the ultra-wideband chip, the connector unit, the low-power Bluetooth unit, and the Bluetooth antenna unit are all independently arranged.

4. The PCB layout structure of a UWB anti-collision radar according to claim 1, characterized in that, The spacing distance between the ultra-wideband chip and the low-power Bluetooth unit is greater than 2 mm.

5. The PCB layout structure of a UWB anti-collision radar according to claim 1, characterized in that, The spacing distance between the power supply unit and the ultra-wideband chip, and the spacing distance between the power supply unit and the low-power Bluetooth unit are both greater than 2 mm.

6. The PCB layout structure of a UWB anti-collision radar according to claim 1, wherein, The spacing distance between the transmitting antenna unit and the first receiving antenna unit, and the spacing distance between the transmitting antenna unit and the second receiving antenna unit are both greater than 3 mm.

7. The PCB layout structure of a UWB anti-collision radar according to claim 1, wherein There is no wiring on any layer in the first clearance area.

8. The PCB layout structure of a UWB anti-collision radar according to claim 1, characterized in that, In the second clearance area, there is no wiring on any layer and no components.

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