An ultrasonic radar probe
Patent Information
- Application Number
- CN202522325916.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-03
- Publication Date
- 2026-10-13
- Estimated Expiration
- 2035-11-03
AI Technical Summary
[0004]本实用新型提供了一种超声波雷达探头，旨在解决现有超声波雷达探头受电磁干扰导致探测错误、最远探测距离受限的问题
本实用新型的超声波雷达探头包括探芯、内橡胶套、外壳本体、后盖、线束、电路板、金属片和橡胶支架；外壳本体和后盖均包含电镀层；内橡胶套设于探芯与外壳本体之间，外壳本体用于固定探芯，并承载电路板；后盖与外壳本体配合形成密闭腔体，密闭腔体用于储存灌封胶；线束一端与电路板电连接，另一端用于与系统主控连接；金属片一端焊接于电路板的信号地焊盘，另一端与电镀后的后盖紧密接触。本实用新型解决了现有超声波雷达探头受电磁干扰导致探测错误、最远探测距离受限的问题。
Smart Images
Figure CN224851391U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ultrasonic radar probe technology, and in particular to an ultrasonic radar probe. Background Technology
[0002] In the field of construction machinery, work platforms need to use sensors to measure the distance to nearby obstacles to achieve collision avoidance. Commonly used sensors include millimeter-wave radar, lidar, ultrasonic radar, and vision sensors. Among them, ultrasonic radar has become the preferred sensor for short-range collision avoidance due to its advantages of low cost, simple structure, and high accuracy in short-range detection.
[0003] However, in practical applications, engineering machinery often operates in environments with complex electromagnetic interference, such as antenna base stations, power grid towers, substations, and factories. Existing ultrasonic radar probes are susceptible to environmental electromagnetic interference, which can lead to signal distortion and incorrect detection distance. At the same time, due to limitations in anti-interference capabilities, the amplification factor of their internal signal amplification circuits cannot be significantly increased, which restricts the maximum detection distance and makes it difficult to meet the anti-collision requirements in complex electromagnetic environments. Utility Model Content
[0004] This invention provides an ultrasonic radar probe, which aims to solve the problems of detection errors caused by electromagnetic interference and the limited maximum detection distance of existing ultrasonic radar probes.
[0005] To achieve the above objectives, this utility model provides an ultrasonic radar probe, including a probe core, an inner rubber sleeve, an outer shell, a rear cover, a wire harness, a circuit board, and a metal sheet. Both the outer casing and the rear cover contain an electroplated layer; The inner rubber sleeve is installed between the probe core and the outer shell body, and the outer shell body is used to fix the probe core and support the circuit board; The rear cover and the outer shell body cooperate to form a sealed cavity, which is used to store potting compound; One end of the wiring harness is electrically connected to the circuit board, and the other end is used to connect to the system main controller; One end of the metal sheet is soldered to the signal ground pad of the circuit board, and the other end is in close contact with the back cover.
[0006] Furthermore, it also includes a rubber bracket, which is used to fix the entire ultrasonic radar probe to the working platform and reduce the resonance effect between the probe and the metal mounting position.
[0007] Furthermore, during operation, the circuit board receives signals from the external system, drives the probe to convert electrical signals into ultrasonic mechanical energy and emits them; after the ultrasonic waves encounter an obstacle and are reflected, the probe converts the reflected ultrasonic mechanical energy into electrical signals and transmits them back to the circuit board; after processing the signals, the circuit board transmits the detection information back to the system master control through the wiring harness.
[0008] The above technical solution has the following technical effects: This invention relates to an ultrasonic radar probe comprising a probe core, an inner rubber sleeve, an outer shell, a rear cover, a wiring harness, a circuit board, a metal sheet, and a rubber bracket. Both the outer shell and the rear cover are electroplated. The inner rubber sleeve is positioned between the probe core and the outer shell, which secures the probe core and supports the circuit board. The rear cover and the outer shell form a sealed cavity for storing potting compound. One end of the wiring harness is electrically connected to the circuit board, and the other end is connected to the system's main control unit. One end of the metal sheet is soldered to the signal ground pad on the circuit board, and the other end is in close contact with the electroplated rear cover. This invention solves the problems of electromagnetic interference-induced detection errors and limited maximum detection distance in existing ultrasonic radar probes.
[0009] In summary, this invention forms an external electromagnetic shielding layer through the electroplating layer of the outer shell and the back cover, blocking external electromagnetic interference from entering the probe. At the same time, the metal sheet connects the electroplating layer to the signal ground of the circuit board, allowing external electromagnetic interference to be guided to the signal ground through the electroplating layer and the metal sheet, further eliminating the impact of interference on the circuit board signal. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of an ultrasonic radar probe according to an embodiment of the present invention, wherein 1—probe core, 2—inner rubber sleeve, 3—outer shell body, 4—back cover, 5—wire harness, 6—circuit board, 7—metal sheet and 8—rubber bracket. Detailed Implementation
[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0012] Figure 1 This is a schematic diagram of the structure of an ultrasonic radar probe according to an embodiment of the present invention, as shown below. Figure 1 As shown, the ultrasonic radar probe includes a probe core 1, an inner rubber sleeve 2, an outer shell 3, a rear cover 4, a wire harness 5, a circuit board 6, a metal sheet 7, and a rubber bracket 8. Both the outer casing 3 and the back cover 4 contain an electroplated layer; The inner rubber sleeve 2 is located between the probe core 1 and the outer shell body 3 to reduce vibration. The outer shell body 3 is used to fix the probe core 1 and support the circuit board 6. The rear cover 4 and the outer shell body 3 cooperate to form a sealed cavity, which is used to store potting compound to protect the internal components. One end of the wire harness 5 is electrically connected to the circuit board 6, and the other end is used to connect to the system main controller to build a complete signal transmission system; One end of the metal sheet 7 is soldered to the signal ground pad of the circuit board 6, and the other end is in close contact with the electroplated back cover 4, so as to realize the conduction between the electroplated layer and the signal ground of the circuit board.
[0013] In one specific implementation, the rubber bracket 8 is used to fix the entire ultrasonic radar probe to the working platform and reduce the resonance effect between the probe and the metal mounting position.
[0014] In one specific implementation, during operation, the circuit board 6 receives signals from the external system and drives the probe core 1 to convert electrical signals into ultrasonic mechanical energy and emit them; after the ultrasonic waves are reflected by an obstacle, the probe core 1 converts the reflected ultrasonic mechanical energy into electrical signals and transmits them back to the circuit board 6; after processing the signals, the circuit board 6 transmits the detection information back to the system master control through the wire harness 5.
[0015] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An ultrasonic radar probe, characterized in that, Includes probe core, inner rubber sleeve, outer shell, back cover, wiring harness, circuit board and metal sheet; Both the outer casing and the rear cover contain an electroplated layer; The inner rubber sleeve is disposed between the probe core and the outer shell body, and the outer shell body is used to fix the probe core and support the circuit board; The rear cover and the outer shell body cooperate to form a sealed cavity, which is used to store potting compound; One end of the wiring harness is electrically connected to the circuit board, and the other end is used to connect to the system main controller; One end of the metal sheet is soldered to the signal ground pad of the circuit board, and the other end is in close contact with the back cover.
2. The ultrasonic radar probe according to claim 1, characterized in that, Also includes: Rubber bracket; the rubber bracket is used to fix the entire ultrasonic radar probe to the working platform.
3. The ultrasonic radar probe according to claim 1, characterized in that, During operation, the circuit board receives signals from the external system and drives the probe to convert electrical signals into ultrasonic mechanical energy and emit them. After the ultrasonic waves are reflected by an obstacle, the probe converts the reflected ultrasonic mechanical energy into electrical signals and transmits them back to the circuit board. After processing the signals, the circuit board transmits the detection information back to the system master control through the wiring harness.