An ultrasonic sensor device

Abstract

The present invention discloses an ultrasonic sensor device, which includes an ultrasonic sensor and a mounting device for mounting the ultrasonic sensor on a board of a corresponding device. It is characterized in that the mounting device includes a fixing component, a cover component, and a pressure output component. The cover component is detachably mounted on the fixing component. The fixing component has a connecting component and a sensor receiving component. The connecting component is used to fixedly connect the ultrasonic sensor device to the board of the device, and the connecting component has an opening for passing through the diaphragm. The sensor receiving component has a receiving space for accommodating the ultrasonic sensor. The cover component presses the diaphragm of the ultrasonic sensor against the board of the device by the pressure output by the pressure output component. The present invention is convenient for installation and disassembly, can accurately detect obstacles without opening holes in the motor vehicle trim panel, and keeps the trim complete and beautiful.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive safety assistance, and particularly to an ultrasonic sensor device that can be installed on accessories or other devices of a motor vehicle. Background Art

[0002] With the improvement of people's living standards, automobiles (motor vehicles) have become essential household items; multiple sensors (such as ultrasonic sensors) often need to be installed on current motor vehicles to detect the surrounding environment (obstacles) with the help of these sensors; for example, an ultrasonic sensor emits ultrasonic signals, and the ultrasonic signals reflected by an object are received by the ultrasonic sensor, and the distance of the detected object can be calculated based on the propagation time of the echo signal received by the ultrasonic sensor; the setting of the ultrasonic sensor can assist the driver during driving to ensure driving safety. For example, some doors of motor vehicles can be automatically opened or closed; during the opening or closing of the door, if there is no sensor detection, the door may collide with an obstacle and cause damage to the door.

[0003] Ultrasonic sensors in the prior art are generally installed on corresponding trim parts such as the front bumper, bumper, and door interior trim panel of a motor vehicle; no matter what kind of trim part they are installed on; holes must be opened on the surface of most trim parts for installing the ultrasonic sensor.

[0004] Generally, an ultrasonic sensor is installed on a corresponding trim part through an installation device, and the installation device and the installation body of the ultrasonic sensor are the ultrasonic sensor device described in this application; there are differences in the curvature of the trim panels of the existing trim parts with installed ultrasonic sensors, so that the ultrasonic sensor device cannot be universal.

[0005] Most of the spaces of the accessories of a motor vehicle where the ultrasonic sensor device is installed are relatively narrow, such as the inner side of the door panel, and it is difficult to replace the ultrasonic sensor component when needed. Summary of the Invention

[0006] The purpose of the present invention is to provide an ultrasonic sensor device that is convenient for installing and disassembling the ultrasonic sensor and does not require drilling holes in the trim part. The present invention is achieved through the following technical solutions:

[0007] An ultrasonic sensor device includes an ultrasonic sensor and a mounting device for mounting the ultrasonic sensor on a board of a corresponding device; the ultrasonic sensor has a diaphragm for transmitting and / or receiving ultrasonic signals; characterized in that the mounting device includes a fixing component, a cover component, and a pressure output component, the cover component is vertically aligned with the fixing component, and the cover component is detachably mounted on the fixing component; the fixing component has a connecting component and a sensor receiving component; the connecting component is used to fixedly connect the ultrasonic sensor device to the board of the device, and the connecting component has an opening for passing through the diaphragm; the pressure output component is disposed between the cover component and the ultrasonic sensor, and the sensor receiving component has a receiving space for receiving the ultrasonic sensor; the cover component presses the diaphragm of the ultrasonic sensor against the board of the device by the pressure output by the pressure output component.

[0008] Specifically, the pressure output component is an elastic component disposed between the cover component and the ultrasonic sensor, providing elastic force for the ultrasonic sensor.

[0009] Further, the cover component has a first limiting structure for restricting the position and maximum elastic force of the elastic component.

[0010] Specifically, the pressure output component is a spiral spring, and the first limiting structure is an annular round table provided at the inner top of the cover component and protruding downward; the annular round table is inserted into the hole of the spring.

[0011] Further, the cover component and the fixing component are movably and detachably connected; when the cover component is mounted on the fixing component, the cover component has a first position where the ultrasonic sensor device is to be mounted and a second position where the installation is completed; the mounting device has a position switching mechanism, and the position switching mechanism switches the cover component between the first position and the second position; the first position of the cover component is higher than the second position of the cover component.

[0012] Specifically, the position switching structure includes at least one first protrusion provided on the sensor receiving component and at least one sliding groove provided on the cover component for cooperating with the first protrusion; in the sliding groove, the cover component is further provided with a first card slot and a second card slot, and the position of the first card slot is lower than the position of the second card slot; the first protrusion slides relatively along the sliding groove; when the cover component is in the first position, the first protrusion of the sensor receiving component abuts against the first card slot; when the cover component is in the second position, the first protrusion of the sensor receiving component abuts against the second card slot.

[0013] Further, the slide groove extends to the bottom edge of the cover component; the first protrusion of the sensor receiving component slides out of the slide groove to achieve removal of the cover component; the first protrusion of the sensor receiving component slides into the slide groove to achieve installation of the cover component.

[0014] Preferably, the sensor receiving component has a second limiting structure; when the cover component is in the first position, the second limiting structure limits the position of the ultrasonic sensor so that the diaphragm of the ultrasonic sensor is lower than the bottom plane of the sensor receiving component.

[0015] Specifically, the ultrasonic sensor has at least one second protrusion protruding outward, the second limiting structure is at least one elastic buckle corresponding to the second protrusion, the elastic buckle has a first boss on the side facing the accommodating space, and has a third protrusion on the side away from the accommodating space; the cover component has at least one hollow release hole matched with the elastic buckle;

[0016] When the cover member is in the first position, the second protrusion of the ultrasonic sensor abuts against the upper portion of the first protrusion of the elastic buckle, and the third protrusion is clamped in the cover member;

[0017] When the cover component is in the second position, the third protrusion of the elastic buckle is located in the release hole of the cover component; and the ultrasonic sensor is located below the first boss of the elastic buckle.

[0018] Preferably, the ultrasonic sensor device further comprises a coupling component bonded to a diaphragm of the ultrasonic sensor; the cover component presses the coupling component against a plate of the device through the pressure output by the pressure output component.

[0019] Preferably, the ultrasonic sensor device further comprises a positioning structure for mounting the ultrasonic sensor device at a designated position on a board of the equipment.

[0020] Preferably, a sound absorbing element is further arranged at the bottom of the connecting component around the opening of the connecting component, and the sound absorbing element is not higher than the bottom plane of the connecting component.

[0021] Specifically, the connecting component is a sheet-like structure composed of a plurality of elastically deformable mounting components; each mounting component has at least one flexible groove along the circumference of the connecting component.

[0022] Preferably, the mounting device further comprises a pressure balancing component arranged between the pressure output component and the top surface of the ultrasonic sensor.

[0023] Beneficial technical effects of the present invention:

[0024] The ultrasonic sensor device of the present invention enables precise detection of obstacles without opening holes in the trim of motor vehicles. Without the need for holes, the integrity and aesthetics of the trim are maintained. Moreover, the ultrasonic sensor can be adapted to the shape of the device's board, enabling it to fit board structures of devices with different curvature configurations, thereby increasing its versatility. The two-step installation structure makes the installation and removal of the cover component more convenient. In most parts of the motor vehicle trim where the space is relatively narrow, such as the inner side of the door panel, in order to solve the problem of difficult sensor disassembly, this ultrasonic sensor device is designed with components that can simply and quickly disassemble and replace the sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 FIG. 6 is an exploded view of the ultrasonic sensor device provided by an embodiment of the present invention;

[0026] Figure 2 FIG. 10 is a schematic structural diagram of the cover component of the ultrasonic sensor device provided by an embodiment of the present invention;

[0027] Figure 3 FIG. 14 is a schematic structural diagram of the fixing component of the ultrasonic sensor device provided by an embodiment of the present invention;

[0028] Figure 4 FIG. 18 is a schematic structural diagram of the fixing component of the ultrasonic sensor device provided by an embodiment of the present invention and a partially enlarged view thereof;

[0029] Figure 5 FIG. 22 is an assembly diagram of the ultrasonic sensor device provided by an embodiment of the present invention in a state to be installed;

[0030] Figure 6 FIG. 26 is an assembly diagram of the ultrasonic sensor device provided by an embodiment of the present invention in an installed state;

[0031] Figure 7 FIG. 30 is a sectional view of the ultrasonic sensor device provided by an embodiment of the present invention in a state to be installed;

[0032] Figure 8 FIG. 34 is a sectional view of the ultrasonic sensor device provided by an embodiment of the present invention in an installed state. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] For ease of description, in the present application, orientations such as up, down, left, right, front, and back are defined. The definition of these orientations is intended to determine the relative positional relationship in combination with the drawings and the text description, and does not constitute a limitation on the actual orientations of the devices, components, and parts involved in the present application during production, use, sales, etc.

[0034] To more clearly understand the technical solution of the present invention, the following further illustrates the present invention in conjunction with embodiments. The specific embodiments are only for facilitating the explanation of the content of the present invention, and the content protected by the present invention is not limited to the content disclosed in the specific embodiments.

[0035] As Figures 1 - 8 shown, this embodiment provides an ultrasonic sensor device, including an ultrasonic sensor 400 and a mounting device for mounting the ultrasonic sensor on the board of a corresponding device; the ultrasonic sensor 400 has a diaphragm 430 for transmitting and / or receiving ultrasonic signals; the mounting device includes a fixing member 500, a cover member 100, a pressure output member 200, a pressure balancing member 300, and a coupling member 800.

[0036] The fixing member 500 is a member for mounting the ultrasonic sensor device on the boards of various devices. The fixing member 500 has a connecting member 510 and a sensor receiving member 520; the connecting member 510 is used for fixedly connecting with the board of the device. In this embodiment, the connecting member 510 is closely attached to the board of the device by bonding with a double-sided tape 600; the connecting member 510 also has an opening for passing through the diaphragm of the ultrasonic sensor 400; the sensor receiving member 520 has a receiving space for accommodating the ultrasonic sensor 400; the ultrasonic sensor 400 also has a wiring plug 420 for external signal transmission. Through the wiring plug 420, the ultrasonic sensor 400 can perform signal transmission and reception; the wiring plug 420 protrudes from the outer shell of the ultrasonic sensor 400, and correspondingly, the sensor receiving member 520 has a corresponding notch for mating with the wiring plug 420.

[0037] The cover member 100 is vertically aligned with the fixing member 500, and the cover member 100 is movably and detachably connected to the fixing member 500.

[0038] The pressure output member 200 is disposed between the cover member 100 and the top surface of the ultrasonic sensor 400, the pressure balancing member 300 is disposed between the pressure output member 200 and the top surface of the ultrasonic sensor 400, and the coupling member 800 is attached to the diaphragm 430 of the ultrasonic sensor 400.

[0039] Specifically, the pressure output member 200 is an elastic member, providing the pre-tightening force (i.e., elastic force) required for the ultrasonic sensor to fit on the boards of various devices; the pressure output member 200 can be, but is not limited to, one of a spring, a spring sheet, and an elastic adhesive.

[0040] The pressure balance component 300 is mainly a memory material with high toughness, high temperature resistance (able to withstand temperatures up to 200 °C), a Shore hardness of around 50, which can disperse a unidirectional acting force into multiple directions, correct the direction of the acting force according to the direction of the contact surface where the force is applied (here referring to the surface where the plate of the device is in contact with the ultrasonic sensor 400), ultimately enabling the object under the acting force (here referring to the pressure output component 200) to reach a dynamic balance with the normal direction of the contact surface where the force is applied, and being able to restore its shape after the acting force is removed. The pressure output by the pressure output component 200 acts on the pressure balance component 300, and the pressure balance component 300 transmits the pressure to the ultrasonic sensor 400 and makes the coupling component 800 closely adhere to the plate of the device.

[0041] The normal direction of the contact surface mentioned above refers to the direction perpendicular to the contact surface where the force is applied. The adjustment of the normal direction of the contact surface is adjusted according to the angle of the plate of the device to be adhered by the ultrasonic sensor device, that is, it is adjusted when the coupling component 800 is fully adhered to the plate of the device.

[0042] The forward transmission path of the elastic force generated by the contraction of the pressure output component 200 of the present invention is: pressure output component 200 - pressure balance component 300 - ultrasonic sensor 400 - coupling component 800 - plate of the device. The force completes a forward transmission here. The reaction force of the device plate is transmitted to the coupling component 800. The coupling component 800 will absorb a part of the reaction force, undergo compression deformation, and then continue to transmit it to the ultrasonic sensor 400. The reaction force of the ultrasonic sensor 400 is transmitted to the pressure balance component 300. The material property of the pressure balance component 300 starts to play a corrective role, and the reaction force continues to be transmitted to the pressure output component 200. The force completes a reverse transmission here. Then, the elastic force generated by the contraction of the pressure output component 200 starts a new round of forward transmission. In this way, the force is transmitted back and forth until a dynamic balance is reached, that is, the coupling component 800 is fully adhered to the plate of the device according to the device. During the process of the force being transmitted back and forth like this, the pressure balance component 300 repeatedly corrects the direction of the force.

[0043] Specifically, the cover component 100 has a first limiting structure that restricts the position and maximum output force of the pressure output component 200. For example, in one embodiment, the pressure output component 200 is a conical spring, and the first limiting structure of the cover component 100 is an annular boss 130 provided at the top inside the cover component 100. The annular boss 130 is inserted into the round hole at the top end of the conical spring to restrict the radial displacement of the conical spring, and the protruding height of the annular boss 130 can restrict the maximum elastic force output by the pressure output component 200.

[0044] The connecting component 510 is a sheet-like structure composed of multiple mounting components capable of elastic deformation. In this embodiment, the connecting component 510 is a polygonal structure (of course, other structures such as circular can also be used). The mounting component is a sector-shaped piece 511 that forms the polygonal structure. The radius edge of the sector-shaped piece 511 presents a certain arc (clockwise arc); the polygonal structure composed of multiple sector-shaped pieces 511 enables the connecting component 510 to have a certain flexibility along the radial direction of the polygon, and can better adapt to the shape of the device's board; more preferably, around the opening of the connecting component 510, along the circumferential direction of the polygon, each mounting component of the connecting component 510 further has at least one flexible groove. The flexible groove divides each mounting component into multiple blocks along the circumferential direction, enabling the connecting component 510 to have a certain flexibility along the circumferential direction, so that the connecting component 510 can better adapt to the shape of the device's board.

[0045] In this embodiment, the coupling component 800 is a material with an orderly arrangement of internal media, capable of transmitting ultrasonic waves with nearly no loss, and will deform under pressure, being a low-damping ultrasonic conduction element; if the diaphragm 430 of the ultrasonic sensor 400 directly contacts the device, acoustic vibrations will generate clutter, making the ultrasonic sensor 400 unable to accurately detect obstacles. The setting of the coupling component 800 can perform shock absorption and buffering, reduce the influence of clutter on the detection accuracy, and improve the detection accuracy; the coupling component 800 is adhesively bonded to the diaphragm of the ultrasonic sensor 400.

[0046] Preferably, a sound-absorbing element is further provided at the bottom of the connecting component 510. For example, the sound-absorbing element can be a sound-absorbing cotton 710 arranged around the opening of the connecting component 510; a groove for placing the sound-absorbing cotton 710 is also provided at the bottom of the connecting component 510, and this groove is arranged around the opening of the connected component 510; the sound-absorbing cotton 710 is adhesively bonded to the inner upper part of the groove of the connecting component 510 by double-sided tape; the sound-absorbing cotton 710 can absorb the ultrasonic echo of the ultrasonic sensor, prevent false alarms, and improve the detection accuracy of the ultrasonic sensor.

[0047] The connecting component 510 is further provided with a positioning structure for installing the ultrasonic sensor device of the present invention at a specified position on the device's board; in combination Figure 3 、 7 As shown in 8, in this embodiment, the positioning structure is a plurality of positioning ears 513 arranged at intervals around the outer periphery of the connecting component 510. The positioning ears 513 protrude downward from the bottom surface of the connecting component 510. Correspondingly, the device's board has positioning grooves for receiving the positioning ears 513, so that the ultrasonic sensor device can be installed at a specified position on the decorative part; more preferably, a sound-absorbing cotton 720 is attached to the lower part of each positioning ear 513; a round platform 514 protruding upward is provided above the positioning ear 513, which is convenient for using a special jig to complete the installation of the ultrasonic sensor device.

[0048] The sensor receiving component 520 has several first protrusions 521 protruding outward. On the side surface of the corresponding cover component 100, there is an R-shaped sliding groove that cooperates with the first protrusion 521. The R-shaped sliding groove is arranged on the side surface of the cover component 100 starting from the edge part of the cover component 100. Each R-shaped sliding groove has a first card slot 110 and a second card slot 120. The position of the second slot 120 is higher than the position of the first card slot 110. The first protrusion 521 can slide between the first card slot 110 and the second card slot 120 of the R-shaped sliding groove. When the first protrusion 521 slides in the R-shaped sliding groove, the cover component 100 and the fixing component 500 are in a combined state. When the first protrusion 521 slides out of the R-shaped sliding groove, the cover component 100 and the fixing component 500 are in a separated state. The disassembly of the cover component 100 and the fixing component 500 is achieved by sliding each first protrusion out of the corresponding R-shaped sliding groove.

[0049] In the combined state of the cover component 100 and the fixing component 500, the ultrasonic sensor has a to-be-installed state and an installed state. The cover component 100 has a first position where the ultrasonic sensor device is not yet installed and a second position where the ultrasonic sensor device is installed.

[0050] When the first protrusion 521 of the sensor receiving component 520 abuts against the first card slot 110, the cover component 100 is in the first position, and the ultrasonic sensor device is in the to-be-installed state. When the first protrusion 521 of the sensor receiving component 520 abuts against the second card slot 120, the cover component 100 is in the second position, and the ultrasonic sensor device is in the to-be-installed state. The first position of the cover component 100 is higher than the second position of the cover component 100.

[0051] The sensor receiving component 520 has a second limiting structure. When the ultrasonic sensor device is in the to-be-installed state (the cover component 100 is in the first position), the second limiting structure can limit the ultrasonic sensor 400 in a certain position, so that the coupling component 800 does not protrude from the bottom plane of the sensor receiving component 520. Without the second limiting structure, it may occur that the coupling component 800 protrudes from the bottom plane position of the sensor receiving component 520. When installing the ultrasonic sensor device, before the positioning of the ultrasonic sensor device is completed, the coupling component 800 has already contacted the device first and adhered to the device, which is not conducive to the positioning and installation of the ultrasonic sensor device.

[0052] Combined Figure 1Generally, the side of the ultrasonic sensor 400 has at least one second protrusion 410 protruding outward. Specifically, the second limiting structure is arranged on the sensor receiving component 520 and has an elastic buckle 522 corresponding to the second protrusion 410. The elastic buckle 522 has a first boss 523 on the side facing the accommodating space and a third protrusion 524 on the side away from the accommodating space.

[0053] When the ultrasonic sensor device is in a state to be installed (the cover component 100 is in the first position), the second protrusion 410 of the ultrasonic sensor 400 abuts against the top of the first boss 523, and the third protrusion 524 is clamped by the cover component 100, thereby limiting the position of the ultrasonic sensor 400, and finally the coupling component 800 does not protrude from the bottom plane of the sensor receiving component 520.

[0054] The cover component 100 has a hollow release hole 140 corresponding to the elastic buckle 522. When the ultrasonic sensor device is in the installed state (the cover component 100 is in the second position), the relative position of the cover component 100 and the sensor receiving component 520 changes, and the third protrusion 524 of the elastic buckle 522 of the sensor receiving component 520 is located at the release hole 140, so that the force exerted on the third protrusion 524 of the elastic buckle 522 is released. Under the action of the pressure (here is the elastic force) output by the pressure output component 200, the ultrasonic sensor 400 is not restricted by the first boss 523 of the elastic buckle 522, and the ultrasonic sensor 400 is located below the first boss 523 of the elastic buckle 522, so that the coupling component is adhered to the board of the device.

[0055] The following describes the disassembly, assembly and use of the ultrasonic sensor device of the present invention:

[0056] (1) The ultrasonic sensor device of the present invention is in a state to be installed when it leaves the factory. At this time, the cover component 100 is in the first position, the first protrusion 521 of the sensor receiving component 520 abuts against the first slot 110, and the second protrusion 410 of the ultrasonic sensor 400 abuts against the top of the first boss 523; at this time, the compression amount of the pressure output component 200 is small, so the pressure provided to the ultrasonic sensor 400 is also small, the third protrusion 524 is clamped by the cover component 100, and the cover component 100 prevents the elastic buckle 522 from deforming outward, thereby ultimately limiting the position of the ultrasonic sensor 400. At this time, the coupling component 800 does not exceed the bottom plane of the sensor receiving component 520.

[0057] (2) Install the mounting ear 513 of the sensor receiving component 520 into the positioning groove of the board of the device to be installed. The bottom of the sensor receiving component 520 is fully adhered to the device through the double-sided tape 600, thus completing the installation of the sensor receiving component 520. At this time, the coupling component 800 has not achieved adhesion to the board of the device.

[0058] (3) Press down the cover component 100. The cover component 100 moves downward, and the third protrusion 524 moves into the release hole 140 of the cover component 100, releasing the pressure on the elastic buckle 522.

[0059] (4) Continue to press down the cover component 100 to further compress the pressure output component 200. The ultrasonic sensor 400 is subjected to an increased pressure from the pressure output component 200, causing the elastic buckle 522 to deform outward. The ultrasonic sensor 400 moves downward out of the restriction of the first boss 523 of the elastic buckle 522, allowing the coupling component 800 to contact the surface of the installed device.

[0060] (5) Press the cover component 100 to the bottom. The annular boss 130 of the cover component 100 will be pressed onto the pressure balance component 300. At this time, the pressure balance component 300 bears the pressure jointly under the combined action of the pressure output component 200 and the annular boss 130. The pressure balance component 300 distributes the force received to the ultrasonic sensor 400, making the ultrasonic sensor 400 force-balanced and enabling the coupling component 800 to be fully adhered to the installation contact surface.

[0061] While pressing the cover component 100 in the above steps (3) to (5), the first protrusion 521 of the sensor receiving component 520 slides relatively in the R-shaped chute. At this time, the third protrusion of the elastic buckle 522 is always located in the release hole 140.

[0062] (6) Gently rotate the cover component 100 to make the first protrusion 521 of the sensor receiving component 520 slide in the R-shaped chute. When the first protrusion 521 reaches the position of the second card slot 120, remove the external force. The first protrusion 521 of the sensor receiving component 520 abuts in the second card slot 120, and the cover component 100 is in the second position. The ultrasonic sensor device is in the installed state. At this time, under the pressure provided by the pressure output component 200, the position of the ultrasonic sensor is fixed and the installation is completed.

[0063] When the ultrasonic sensor 100 needs to be replaced, take out the first protrusion 521 of the sensor receiving component 520 from the R-shaped chute of the cover component 100, realizing the separation of the sensor structural component 520 and the cover component 100. The ultrasonic sensor 100 can be easily taken out and replaced.

[0064] The present invention provides a pre-tightening force for the ultrasonic sensor, enabling accurate detection of obstacles without opening holes in the trim of motor vehicles. Without opening holes, the integrity and aesthetics of the trim are maintained. Moreover, the ultrasonic sensor can adapt to the structures of plates of devices with different curvature configurations, increasing its versatility. In most of the relatively narrow spaces of motor vehicle trims, such as the inner side of the door panel, in order to solve the problem of difficult disassembly of the sensor, the present ultrasonic sensor device is designed with components that can simply and quickly disassemble and replace the sensor.

[0065] The present invention also provides a motor vehicle trim, which has a trim panel; characterized in that it further includes at least one ultrasonic sensor device as described in the above technical solution, and the ultrasonic sensor device is connected to the inner side of the trim panel of the motor vehicle trim through the fixing component of the installation device.

[0066] The present invention also provides a motor vehicle, including a vehicle body and a power system, characterized in that it further includes at least one of the above-mentioned motor vehicle trims.

[0067] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made without creative efforts within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An ultrasonic sensor device, comprising an ultrasonic sensor and a mounting device for mounting the ultrasonic sensor on a board of a corresponding device; the ultrasonic sensor has a wiring plug for external signal transmission and a diaphragm for transmitting and / or receiving ultrasonic signals; characterized in that, The mounting device comprises a fixing component and a cover component, wherein the cover component is matched with the fixing component up and down, and the cover component is detachably mounted on the fixing component; the fixing component comprises a connecting component and a sensor receiving component; the connecting component is used to fix the ultrasonic sensor device to the plate of the device, and the connecting component has an opening for passing the diaphragm; the sensor receiving component has a receiving space for accommodating the ultrasonic sensor; the cover component presses the diaphragm of the ultrasonic sensor against the plate of the device through the pressure output by the pressure output component; the cover component has a first position where the ultrasonic sensor device is to be installed and a second position where the installation is completed, and the first position of the cover component is higher than the second position of the cover component two positions; the mounting device has a position switching mechanism, and the position switching mechanism switches the cover component between the first position and the second position, and the position switching mechanism includes at least one first protrusion arranged on the sensor receiving component and at least one slide groove arranged on the side of the cover component for cooperating with the first protrusion; the cover component is also provided with a first card slot and a second card slot in the slide groove, and the position of the first card slot is lower than the position of the second card slot; the first protrusion slides relatively along the slide groove; when the cover component is in the first position, the first protrusion of the sensor receiving component abuts against the first card slot; when the cover component is in the second position, the first protrusion of the sensor receiving component abuts against the second card slot.

2. The ultrasonic sensor device according to claim 1, wherein, The pressure output component is an elastic component provided between the cover component and the ultrasonic sensor, and provides elastic force for the ultrasonic sensor.

3. The ultrasonic sensor device according to claim 2, characterized in that The cover component has a first limiting structure for limiting the position of the elastic component and the maximum elastic force.

4. The ultrasonic sensor device according to claim 1, characterized in that, The sensor receiving component has a second limiting structure; when the cover component is in the first position, the second limiting structure limits the position of the ultrasonic sensor so that the diaphragm of the ultrasonic sensor is lower than the bottom plane of the sensor receiving component.

5. The ultrasonic sensor device according to claim 4, characterized in that, The ultrasonic sensor has at least one second protrusion protruding outward, the second limiting structure is at least one elastic buckle corresponding to the second protrusion, the elastic buckle has a first boss on the side facing the accommodating space, and has a third protrusion on the side away from the accommodating space; the cover component has at least one hollow release hole matched with the elastic buckle; When the cover member is in the first position, the second protrusion of the ultrasonic sensor abuts against the upper portion of the first protrusion of the elastic buckle, and the third protrusion is clamped in the cover member; When the cover component is in the second position, the third protrusion of the elastic buckle is located in the release hole of the cover component; and the ultrasonic sensor is located below the first boss of the elastic buckle.

6. The ultrasonic sensor device according to any one of claims 1 to 5, characterized in that, The ultrasonic sensor device further comprises a coupling component bonded to the diaphragm of the ultrasonic sensor; the cover component presses the coupling component against the plate of the device through the pressure output by the pressure output component.

7. The ultrasonic sensor device according to any one of claims 1 to 5, characterized in that The connecting component is a sheet-like structure composed of a plurality of elastically deformable mounting components; each mounting component has at least one flexible groove along the circumferential direction of the connecting component.

8. The ultrasonic sensor device according to any one of claims 1 to 5, characterized in that, The mounting device further includes a pressure balancing component disposed between the pressure output component and the top surface of the ultrasonic sensor.

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