Digital ultrasonic sensor

Abstract

The utility model relates to the technical field of ultrasonic sensors, in particular to a digital ultrasonic sensor, which comprises a body shell and is characterized in that a soft rubber sleeve is arranged in the body shell, and a probe core is placed in the soft rubber sleeve; four spring steel clamps are inserted into the surface of the body shell, a PCB is connected to the interior of the body shell, a rear cover is installed at the bottom of the body shell, a wire harness is arranged on one side of the body shell, and one end of the wire harness penetrates through the rear cover and is electrically connected with the PCB. According to the utility model, the UP, the arrow mark and the direction mark are arranged, so that the assembly angle or direction error is avoided in the assembly process, and the assembly time of the ultrasonic sensor is reduced; and the probe core fool-proof surface and the soft rubber sleeve fool-proof block are arranged, so that the rotation phenomenon is avoided after installation.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic sensors, in particular to a digital ultrasonic sensor. Background Art

[0002] Ultrasonic sensors are sensors that convert ultrasonic signals into other energy signals. Ultrasonic waves are mechanical waves with a vibration frequency higher than 20kHz. They have the characteristics of high frequency, short wavelength, small diffraction phenomenon, and especially good directionality, and can become rays and propagate in a directional manner.

[0003] Existing ultrasonic sensors rarely have a direction identification function during assembly, so it is easy to make an error in the assembly angle or direction during the assembly process, which increases the assembly time of the ultrasonic sensor. In addition, existing ultrasonic sensors rarely have an anti-fouling function during installation, so they are prone to rotation after installation. Utility Model Content

[0004] The purpose of the present invention is to provide a digital ultrasonic sensor to solve the problem in the prior art that the existing ultrasonic sensors are prone to assembling with wrong angles or directions during assembly and are prone to rotating or falling off after installation.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a digital ultrasonic sensor, including a main body shell, characterized in that: a soft rubber sleeve is provided inside the main body shell, and a probe core is placed inside the soft rubber sleeve; four spring steel clips are plugged into the surface of the main body shell, a PCB board is connected to the inside of the main body shell, a back cover is installed at the bottom of the main body shell, a wiring harness is provided on one side of the main body shell, and one end of the wiring harness passes through the back cover and is electrically connected to the PCB board.

[0006] Preferably, a soft rubber sleeve receiving platform is provided inside the main body shell, and the soft rubber sleeve receiving platform is used to receive the soft rubber sleeve placed inside the main body shell; two soft rubber sleeve anti-mistake blocks are integrally injection-molded inside the main body shell and on one side of the soft rubber sleeve receiving platform; the surface of the main body shell is provided with UP and arrow marks, and the UP and arrow marks are used to position the sensor during installation to prevent angle errors.

[0007] Preferably, four groups of back cover snap grooves are provided at the bottom of the main body shell, and the back cover snap grooves are respectively opened at four positions of 0°, 90°, 180° and 270° of the main body shell; the surface of the main body shell is also provided with four groups of spring steel snap grooves, and the spring steel snap grooves are respectively opened at four positions of 45°, 135°, 225° and 315° of the main body shell, and the spring steel snap grooves position and fix the spring steel card when it is placed.

[0008] Preferably, a wire outlet hole is opened on the surface of the back cover, which facilitates the wiring of the wire harness; a buckle is integrally injection-molded at the edge of the back cover surface, and when the PCB board and the main body shell are installed, the buckle and the back cover buckle groove engage with each other for positioning and fixing, preventing the PCB board from rotating or falling off after installation.

[0009] Preferably, the surface of the back cover is also provided with a direction mark, a glue injection port and an exhaust port. The direction mark is used to align the UP and arrow positions of the main body shell when assembling the back cover, and to prompt the direction of the sensor when installing the sensor on a car, etc. The glue injection port is used to fill and seal the internal space of the main body shell with glue, and the exhaust port is used to exhaust air during gluing.

[0010] Preferably, a core probe receiving platform is provided inside the soft rubber sleeve, and the core probe receiving platform is used for bearing work when the core probe is inserted into the soft rubber sleeve; two groups of core probe anti-mistake blocks are integrally injection-molded inside the soft rubber sleeve; two groups of interference extrusion ribs are integrally injection-molded on the outer wall of the soft rubber sleeve, and the diameter of the interference extrusion ribs is larger than the inner diameter of the main body shell, and when the main body shell and the soft rubber sleeve are installed, the core probe anti-mistake blocks interfere and extrude, thereby fixing the soft rubber sleeve and the core probe.

[0011] Preferably, both sides of the probe core surface are provided with probe core anti-fool surfaces, and when the probe core is assembled with the soft rubber sleeve, the probe core anti-fool surfaces and the probe core anti-fool blocks cooperate with each other to achieve anti-fool, so as to prevent the probe core from rotating after being installed; the inside of the probe core is respectively installed with a positive pole and a negative pole, and both the positive pole and the negative pole are electrically connected to the positive and negative ends of the PCB board through connecting wires.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: the digital ultrasonic sensor is provided with UP and arrow marks and direction marks, so when the PCB board is placed inside the main body shell, the direction mark on the back cover is aligned with the UP and arrow marks on the main body shell, thereby avoiding assembly angle or direction errors during the assembly process and reducing the assembly time of the ultrasonic sensor; by providing the probe core anti-foolproofing surface and the soft rubber sleeve anti-foolproofing block, during assembly, the probe core anti-foolproofing surface is aligned with the soft rubber sleeve anti-foolproofing block and placed in until the bottom surface of the probe core fits well with the probe core receiving platform of the soft rubber sleeve, and at the same time, by providing the soft rubber sleeve anti-foolproofing block and the soft rubber sleeve anti-foolproofing surface, during assembly, the soft rubber sleeve anti-foolproofing surface is aligned with the soft rubber sleeve anti-foolproofing block of the main body shell and placed in, so that rotation will not occur after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the three-dimensional appearance structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0015] Figure 3 This is an enlarged structural diagram of the main body shell of the utility model;

[0016] Figure 4 This is an enlarged structural diagram of the rear cover of the present utility model;

[0017] Figure 5 This is an enlarged structural diagram of the soft rubber sleeve of the utility model;

[0018] Figure 6 This is a schematic diagram of the core probe amplification structure of the utility model.

[0019] In the figure: 1. Main body shell; 11. Soft rubber sleeve receiving platform; 12. Soft rubber sleeve anti-foolproofing block; 13. UP and arrow mark; 14. Back cover snap slot; 15. Spring steel snap slot; 2. Wiring harness; 3. Back cover; 31. Direction mark; 32. Glue injection port; 33. Wire outlet; 34. Exhaust port; 35. Buckle; 4. PCB board; 5. Spring steel clip; 6. Soft rubber sleeve; 61. Core probe anti-foolproofing block; 62. Soft rubber sleeve anti-foolproofing surface; 63. Interference extrusion rib; 64. Deformation groove; 65. Core probe receiving platform; 7. Core probe; 71. Core probe anti-foolproofing surface; 72. Positive pole; 73. Negative pole. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] The structure of a digital ultrasonic sensor provided by the utility model is as follows Figure 1 、 Figure 2 as well as Figure 3 As shown, it includes a main body shell 1, a soft rubber sleeve 6 is provided inside the main body shell 1, a soft rubber sleeve receiving platform 11 is provided inside the main body shell 1, and the soft rubber sleeve receiving platform 11 is used to receive the soft rubber sleeve 6 placed inside the main body shell 1; a probe core 7 is placed inside the soft rubber sleeve 6, a PCB board 4 is connected to the inside of the main body shell 1, a back cover 3 is installed at the bottom of the main body shell 1, and an UP and arrow mark 13 are provided on the surface of the main body shell 1. The UP and arrow mark 13 are used to position the sensor during installation to prevent angle errors. A wiring harness 2 is provided on one side of the main body shell 1, and one end of the wiring harness 2 passes through the back cover 3 and is electrically connected to the PCB board 4.

[0022] During implementation, the wire harness 2 is passed through the wire outlet hole 33 of the rear cover 3 to complete the installation of the wire harness 2 and the rear cover 3; then, after the wire harness 2 passes through the rear cover 3, the wire harness 2 and the PCB board 4 are welded together.

[0023] Furthermore, if Figure 2 as well as Figure 3As shown, two soft rubber sleeve anti-fool blocks 12 are integrally injection-molded inside the main body shell 1 and on one side of the soft rubber sleeve receiving platform 11; four spring steel clips 5 are inserted into the surface of the main body shell 1, and four groups of rear cover clip grooves 14 are provided at the bottom of the main body shell 1, and the rear cover clip grooves 14 are respectively opened at the four positions of 0°, 90°, 180° and 270° of the main body shell 1; four groups of spring steel clip grooves 15 are also provided on the surface of the main body shell 1, and the spring steel clip grooves 15 are respectively opened at the four positions of 45°, 135°, 225° and 315° of the main body shell 1, and the spring steel clip grooves 15 are used to position and fix the spring steel clips 5 when they are placed.

[0024] During implementation, the spring steel clips 5 are then inserted into the spring steel clip slots 15 of the main body shell 1 one by one until they are completely embedded in the main body shell 1 .

[0025] Furthermore, if Figure 2 as well as Figure 4 As shown, the surface of the back cover 3 is also provided with a direction mark 31, a glue injection port 32 and an exhaust port 34. The direction mark 31 is used to align the UP and arrow positions of the main shell 1 when assembling the back cover 3, and to prompt the direction of the sensor when installing the sensor on a car, etc. The glue injection port 32 is used to fill and seal the internal space of the main shell 1 with glue, and the exhaust port 34 is used to vent air when gluing; the surface of the back cover 3 is provided with a wire outlet hole 33, which facilitates the wire passing work of the wiring harness 2; a buckle 35 is integrally injection-molded at the edge position of the surface of the back cover 3, and when the PCB board 4 is installed with the main shell 1, the buckle 35 and the back cover buckle slot 14 are engaged with each other for positioning and fixing, to prevent the PCB board 4 from rotating or falling off after installation.

[0026] During implementation, the PCB board 4 is placed inside the main housing 1, the direction mark 31 on the back cover 3 is aligned with the UP and arrow marks 13 on the main housing 1, and the buckle 35 of the back cover 3 is pressed into the back cover buckle groove 14 of the main housing 1 until it is locked. The waterproof sealant is injected from the glue injection port 32 until it is filled.

[0027] Furthermore, if Figure 2 、 Figure 5 as well as Figure 6As shown, a probe core receiving platform 65 is provided inside the soft rubber sleeve 6, which is used for bearing work when the probe core 7 is inserted into the soft rubber sleeve 6; two groups of probe core anti-fool blocks 61 are integrally injection-molded inside the soft rubber sleeve 6; two groups of interference extrusion ribs 63 are integrally injection-molded on the outer wall of the soft rubber sleeve 6, the diameter of the interference extrusion rib 63 is larger than the inner diameter of the main body shell 1, and when the main body shell 1 and the soft rubber sleeve 6 are installed, the probe core anti-fool blocks 61 interfere and extrude to fix the soft rubber sleeve 6 and the probe core 7, and probe core anti-fool surfaces 71 are provided on both sides of the surface of the probe core 7, and when the probe core 7 and the soft rubber sleeve 6 are assembled, the probe core anti-fool surfaces 71 and the probe core anti-fool blocks 61 cooperate with each other to achieve anti-fool to prevent the probe core 7 from rotating after being installed; the inside of the probe core 7 is respectively installed with a positive electrode 72 and a negative electrode 73, and the positive electrode 72 and the negative electrode 73 are both electrically connected to the positive and negative ends of the PCB board 4 through connecting wires.

[0028] During implementation, align the probe core anti-mistake surface 71 with the probe core anti-mistake block 61 and place it in until the bottom surface of the probe core 7 fits well with the probe core receiving platform 65 of the soft rubber sleeve 6; align the soft rubber sleeve anti-mistake surface 62 with the soft rubber sleeve anti-mistake block 12 of the main body shell 1, and press the assembled soft rubber sleeve 6 and probe core 7 into the main body shell 1 until they are completely installed, that is, the bottom of the soft rubber sleeve 6 fits well with the soft rubber sleeve receiving platform 11 of the main body shell 1.

[0029] Working principle: When in use, first align the core detection anti-fool surface 71 with the core detection anti-fool block 61 and place it in until the bottom surface of the core detection 7 fits well with the core detection receiving platform 65 of the soft rubber sleeve 6, thus completing the installation of the core detection 7; then insert the spring steel card 5 into the spring steel card slot 15 of the main body shell 1 one by one until it is completely embedded in the main body shell 1, thus completing the installation of the spring steel card 5.

[0030] Then align the soft rubber sleeve anti-mistake surface 62 with the soft rubber sleeve anti-mistake block 12 of the main body shell 1, and press the assembled soft rubber sleeve 6 and probe core 7 into the main body shell 1 until they are completely installed, that is, the bottom of the soft rubber sleeve 6 fits well with the soft rubber sleeve receiving platform 11 of the main body shell 1, and the assembly of the probe core 7, soft rubber sleeve 6, main body shell 1 and spring steel card 5 is completed.

[0031] Then pass the wire harness 2 through the wire outlet hole 33 of the back cover 3 to complete the installation of the wire harness 2 and the back cover 3; then after passing the wire harness 2 through the back cover 3, weld the wire harness 2 and the PCB board 4 together, and then insert the plug pins on the probe core 7 connecting wire into the PCB board 4 and weld it.

[0032] Finally, place the PCB board 4 into the main housing 1, align the direction mark 31 on the back cover 3 with the UP and arrow marks 13 on the main housing 1, press the clip 35 of the back cover 3 into the back cover clip groove 14 of the main housing 1 until it is locked. Inject waterproof sealant from the glue injection port 32 until it is full. This completes the installation of the digital sensor.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.

Claims

1. A digital ultrasonic sensor, comprising a body housing (1), characterized in that: A soft rubber sleeve (6) is provided inside the main body shell (1), and a probe core (7) is placed inside the soft rubber sleeve (6); four spring steel clips (5) are plugged into the surface of the main body shell (1), a PCB board (4) is connected inside the main body shell (1), a back cover (3) is installed at the bottom of the main body shell (1), a wiring harness (2) is provided on one side of the main body shell (1), and one end of the wiring harness (2) passes through the back cover (3) and is electrically connected to the PCB board (4).

2. A digital ultrasonic sensor according to claim 1, characterized in that: A soft rubber sleeve receiving platform (11) is provided inside the main body shell (1), and the soft rubber sleeve receiving platform (11) is used to receive and place the soft rubber sleeve (6) inside the main body shell (1); two soft rubber sleeve anti-mistake blocks (12) are integrally injection-molded inside the main body shell (1) and located on one side of the soft rubber sleeve receiving platform (11); and an UP and an arrow mark (13) are provided on the surface of the main body shell (1), and the UP and the arrow mark (13) are used to mark the positioning of the sensor during installation to prevent angle errors.

3. The digital ultrasonic sensor according to claim 1, characterized in that: The bottom of the main body shell (1) is provided with four groups of rear cover snap-fit ​​grooves (14), and the rear cover snap-fit ​​grooves (14) are respectively opened at four directions of 0°, 90°, 180° and 270° of the main body shell (1); the surface of the main body shell (1) is also provided with four groups of spring steel snap-fit ​​grooves (15), and the spring steel snap-fit ​​grooves (15) are respectively opened at four directions of 45°, 135°, 225° and 315° of the main body shell (1), and the spring steel snap-fit ​​grooves (15) are used to position and fix the spring steel clip (5) when it is placed.

4. The digital ultrasonic sensor according to claim 1, characterized in that: A wire outlet hole (33) is provided on the surface of the rear cover (3), and the wire outlet hole (33) facilitates the wire passing work of the wire harness (2); a buckle (35) is integrally injection-molded at the edge of the surface of the rear cover (3), and when the PCB board (4) and the main body shell (1) are installed, the buckle (35) and the rear cover buckle groove (14) are mutually engaged for positioning and fixing, thereby preventing the PCB board (4) from rotating or falling off after installation.

5. The digital ultrasonic sensor according to claim 1, characterized in that: The surface of the rear cover (3) is further provided with a direction mark (31), a glue injection port (32) and an exhaust port (34). The direction mark (31) is used to align the UP and arrow positions of the main body shell (1) when assembling the rear cover (3), and to indicate the direction of the sensor when installing the sensor in the car. The glue injection port (32) is used to fill and seal the internal space of the main body shell (1) with glue, and the exhaust port (34) is used to release air when gluing.

6. The digital ultrasonic sensor according to claim 1, characterized in that: The soft rubber sleeve (6) is provided with a core probe receiving platform (65) inside, and the core probe receiving platform (65) is used for bearing work when the core probe (7) is inserted into the soft rubber sleeve (6); the inside of the soft rubber sleeve (6) is integrally injection-molded with two groups of core probe anti-mistake blocks (61); the outer wall of the soft rubber sleeve (6) is integrally injection-molded with two groups of interference extrusion ribs (63), the diameter of the interference extrusion ribs (63) is larger than the inner diameter of the main body shell (1), and when the main body shell (1) and the soft rubber sleeve (6) are installed, the core probe anti-mistake blocks (61) generate interference and perform extrusion, thereby playing the role of fixing the soft rubber sleeve (6) and the core probe (7).

7. The digital ultrasonic sensor according to claim 1, characterized in that: Both sides of the surface of the soft rubber sleeve (6) are provided with soft rubber sleeve anti-mistake surfaces (62), and when the soft rubber sleeve (6) is assembled with the main body shell (1), the soft rubber sleeve anti-mistake surfaces (62) and the soft rubber sleeve anti-mistake blocks (12) cooperate with each other to prevent the soft rubber sleeve (6) from rotating after installation.

8. The digital ultrasonic sensor according to claim 1, characterized in that: Both sides of the probe core (7) are provided with probe core fool-proof surfaces (71), and when the probe core (7) and the soft rubber sleeve (6) are assembled, the probe core fool-proof surfaces (71) and the probe core fool-proof block (61) cooperate with each other to achieve fool-proofing, so as to prevent the probe core (7) from rotating after being installed; the inside of the probe core (7) is respectively installed with a positive electrode (72) and a negative electrode (73), and both the positive electrode (72) and the negative electrode (73) are electrically connected to the positive and negative ends of the PCB board (4) through connecting wires.

Images