Vibration reduction structure of sound sensor

Abstract

The utility model discloses a vibration reduction structure of a sound sensor, which is used for reducing the influence of impact vibration generated during emission of an emitter on the sound sensor and improving the measurement accuracy of the sound sensor. The flexible shock absorber comprises a shock absorber shell, a flexible shock absorption assembly and an electrical component mounting shell, the shock absorber shell is connected to the electrical component mounting shell, and a through hole is formed in the front end part of the shock absorber shell; the flexible vibration reduction assembly is arranged in the vibration reducer shell, a containing cavity used for containing a sound sensor is formed in the flexible vibration reduction assembly, the containing cavity is communicated with the through hole, and the flexible vibration reduction assembly is used for conducting vibration reduction on the sound sensor.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sound sensors, in particular to a damping structure of a sound sensor. BACKGROUND

[0002] The sound signal generated when the transmitter is working is mainly derived from the explosion wave and shock wave caused by the instantaneous release of energy inside the transmitter, which is a significant feature of the operation of the transmitter. These sound signals carry important information about the working state of the transmitter. In the prior art, sound sensors are installed on the transmitter to measure the sound signals generated when the transmitter is working, so as to obtain key acoustic data during the working process of the transmitter, thereby facilitating in-depth understanding of the working mechanism and performance of the transmitter.

[0003] However, when the transmitter is working, a huge amount of energy is released at the explosion moment, forming high-intensity impact vibration. The impact vibration is transmitted to the sound sensor through the transmitter, so that the sound sensor collects the explosion sound signal at the same time, and also collects the signal of the impact vibration. Due to the high signal strength and wide frequency range of the impact vibration, the signal of the impact vibration will be superimposed and interfered with the signal of the explosion sound, so that the measurement result is inaccurate. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the above technical problems, the present application provides a damping structure of a sound sensor, which can reduce the impact of the impact vibration generated when the transmitter is launched on the sound sensor and improve the accuracy of the measurement of the sound sensor.

[0005] The damping structure of the sound sensor provided by the present application comprises:

[0006] The damping structure of the sound sensor provided by the present application comprises:

[0007] The damping device housing is connected to the electrical component mounting shell, and the front end of the damping device housing is provided with a through hole;

[0008] The soft damping assembly is arranged in the damping device housing, and the soft damping assembly is provided with a containing cavity for placing the sound sensor, the containing cavity is communicated with the through hole, and the soft damping assembly is used for damping the sound sensor.

[0009] Optionally, the damping structure further comprises a first damping assembly, the damping device housing is provided with a containing space, the first damping assembly is arranged in the containing space, and the soft damping assembly is movably connected to the first damping assembly, and the first damping assembly is used for damping the soft damping assembly.

[0010] Optionally, the first damping assembly comprises a first guide column and a first damping spring, the first guide column is arranged in the damper housing, the soft damping assembly is externally provided with a sound sensor mounting shell, the sound sensor mounting shell is provided with a guide block, and the guide block is movably connected to the first guide column.

[0011] The first damping spring is sleeved at two ends of the first guide column, respectively.

[0012] Optionally, the number of the first guide columns is four, and the number of the first damping springs is eight.

[0013] Optionally, the damping structure further comprises a connector and a second damping assembly, the connector and the electrical component mounting shell are movably connected through the second damping assembly, and the second damping assembly is used for damping the electrical component mounting shell.

[0014] Optionally, the second damping assembly comprises a second guide column and a second damping spring, the electrical component mounting shell is provided below with a damping block, the connector is provided with a damper shell, the damper shell is provided with a groove, the second guide column is arranged in the groove, the damping block is located in the groove and movably connected to the second guide column.

[0015] The second damping spring is sleeved at two ends of the second guide column, respectively.

[0016] Optionally, the number of the second guide columns is two, and the number of the second damping springs is four.

[0017] Optionally, the soft damping assembly comprises a first flexible damping ring, a second flexible damping ring and a third flexible damping ring connected in sequence.

[0018] The sound sensor is fixed in the second flexible damping ring.

[0019] Optionally, the first flexible damping ring, the second flexible damping ring and the third flexible damping ring are made of the same material, and the material is sponge material or foam material.

[0020] Optionally, a dustproof net is arranged in the through hole at the front end of the damper housing.

[0021] From the above technical solutions, the application has the following effects:

[0022] The application sets the shock absorber shell, the soft shock absorbing assembly and the electrical component mounting shell, connects the shock absorber shell on the electrical component mounting shell, sets the dust screen at the front end of the shock absorber shell, sets the soft shock absorbing assembly in the shock absorber shell, and the inside of the soft shock absorbing assembly is also provided with a containing cavity, the containing cavity is communicated with the dust screen at the front end of the shock absorber shell, the sound sensor can be installed in the containing cavity, and the sound sensor is wrapped through the soft shock absorbing assembly, so that when measuring in the explosion environment, the soft shock absorbing assembly can block the shock wave and absorb the sound wave impact signal, thereby reducing the influence of the shock wave on the internal sound sensor, and improving the accuracy of the sound sensor measurement. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0024] Figure 1 An explosion schematic diagram of one embodiment of the shock absorbing structure of the sound sensor of the application;

[0025] Figure 2 A schematic diagram of one embodiment of the shock absorbing structure of the sound sensor of the application;

[0026] Figure 3 A schematic diagram of the first shock absorbing assembly in the shock absorbing structure of the sound sensor of the application;

[0027] Figure 4 Another schematic diagram of the first shock absorbing assembly in the shock absorbing structure of the sound sensor of the application;

[0028] Figure 5 An explosion schematic diagram of another embodiment of the shock absorbing structure of the sound sensor of the application;

[0029] Figure 6 A whole schematic diagram of another embodiment of the shock absorbing structure of the sound sensor of the application;

[0030] Figure 7 A schematic diagram of the electrical component mounting shell in the shock absorbing structure of the sound sensor of the application;

[0031] Figure 8 A schematic diagram of the connector in the shock absorbing structure of the sound sensor of the application;

[0032] In the figure, the damper housing 01, electrical components mounting shell 02, dust screen 03, sound sensor 04, the first guide column 05, the first damping spring 06, sound sensor mounting shell 07, guide block 08, damper shell 09, connector 10, the second guide column 11, the second damping spring 12, damping block 13, groove 14, the first flexible damping ring 15, the second flexible damping ring 16, the third flexible damping ring 17. DETAILED DESCRIPTION

[0033] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are used only to illustrate the relative positional relationship between the components or constituent parts, and do not particularly limit the specific mounting orientation of the components or constituent parts.

[0034] In addition, in addition to being used to indicate the orientation or positional relationship, the above-mentioned terms may also be used to indicate other meanings, for example, the term "upper" may also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0035] In addition, the terms "mounting", "provision", "provision", "connection", "connection" should be broadly understood. For example, it can be fixedly connected, detachably connected, or integrally configured; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or constituent parts. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] In addition, the structure, proportion, size, etc. shown in the drawings attached in the present application are only used to cooperate with the content disclosed in the specification, so that those skilled in the art can understand and read, and do not have technical significance, any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the present application, still falls within the scope of the technical content disclosed by the present application.

[0037] The technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0038] The application provides a sound sensor damping structure for reducing the impact of impact vibration generated when the transmitter transmits on the sound sensor and improving the accuracy of sound sensor measurement. The specific implementation process of the application is described as follows.

[0039] Please refer to Figures 1 to 8 The application provides a sound sensor damping structure, which comprises:

[0040] The damping device shell 01, the soft damping assembly and the electrical component mounting shell 02; the damping device shell 01 is connected to the electrical component mounting shell 02, and the front end of the damping device shell 01 is provided with a through hole; the soft damping assembly is arranged in the damping device shell 01, and an accommodating cavity for placing the sound sensor 04 is arranged in the soft damping assembly; the accommodating cavity is communicated with the through hole, and the soft damping assembly is used for damping the sound sensor 04.

[0041] The soft damping assembly is soft and elastic in structure and can be made of sponge, foam or other materials with buffering performance; the shape and size of the internal accommodating cavity of the soft damping assembly are designed according to the shape of the sound sensor 04, so that the sound sensor 04 can be accurately installed in the accommodating cavity. The opening direction of the accommodating cavity is communicated with the through hole of the front end of the damping device shell 01, forming a continuous channel, so that the sound signal can smoothly pass through the through hole into the accommodating cavity and be received by the sound sensor 04.

[0042] In an explosion environment, when impact vibration is transmitted from the transmitter, the vibration signal transmitted by the impact vibration is transmitted to the soft damping assembly through the electrical component mounting shell 02, and the impact vibration is blocked by the soft damping assembly, so that the influence of external impact vibration on the internal sound sensor 04 can be reduced. The sound sensor 04 stably receives the sound signal generated by the explosion in the accommodating cavity and converts it into an electrical signal output, thereby improving the accuracy of the measurement result.

[0043] In the embodiment, the damping device shell 01, the soft damping assembly and the electrical component mounting shell 02 are arranged, the damping device shell 01 is connected to the electrical component mounting shell 02, the through hole is arranged at the front end of the damping device shell 01, the soft damping assembly is arranged in the damping device shell 01, and the internal accommodating cavity of the soft damping assembly is communicated with the through hole at the front end of the damping device shell 01, the sound sensor 04 can be installed in the accommodating cavity, the sound sensor 04 collects the sound signal through the through hole, and the sound sensor 04 is wrapped by the soft damping assembly. Therefore, when measuring in an explosion environment, the soft damping assembly can block the impact vibration transmitted from the transmitter and absorb the impact vibration, thereby reducing the influence of the impact vibration on the internal sound sensor 04 and improving the accuracy of the sound sensor 04 measurement.

[0044] In an alternative embodiment, a dust screen 03 is arranged in the through hole at the front end of the damper housing 01. By arranging the dust screen 03 at the front end of the damper housing 01, the effect of sound transmission and dust prevention can be achieved.

[0045] In an alternative embodiment, the soft damping assembly comprises a first flexible damping ring 15, a second flexible damping ring 16 and a third flexible damping ring 17 connected in sequence; and the sound sensor 04 is fixed in the second flexible damping ring 16.

[0046] In the embodiment, the soft damping assembly is composed of the first flexible damping ring 15, the second flexible damping ring 16 and the third flexible damping ring 17, and the first flexible damping ring 15, the second flexible damping ring 16 and the third flexible damping ring 17 are all provided with openings, and the opening in the second flexible damping ring 16 is adapted to the size of the sound sensor 04, so that the sound sensor 04 is fixed in the second flexible damping ring 16.

[0047] The connection between the first flexible damping ring 15 and the second flexible damping ring 16 and the connection between the second flexible damping ring 16 and the third flexible damping ring 17 can be connected by gluing, or the three flexible damping rings are integrally formed.

[0048] It should be noted that the first flexible damping ring 15 is close to one end of the dust screen 03, and the third flexible damping ring 17 is close to one end of the electrical component mounting shell 02, and the central hole diameter of the third flexible damping ring 17 is larger than that of the first flexible damping ring 15.

[0049] In an alternative embodiment, the first flexible damping ring 15, the second flexible damping ring 16 and the third flexible damping ring 17 are made of the same material, which is sponge material or foam material.

[0050] The above embodiment wraps the sound sensor 04 by arranging the soft damping assembly, absorbs the impact vibration through the soft damping assembly, realizes the damping effect (first-level damping mode) of the sound sensor 04, and improves the measurement accuracy of the sound sensor 04 in the explosion environment. In order to further improve the damping effect, the application also provides a second-level damping mode, which is described as follows:

[0051] Embodiment one:

[0052] Please continue to refer to Figures 1-4 The second-level damping in the embodiment is carried out by using the first damping assembly to connect the soft assembly in the damper housing 01, and the overall damping of the soft damping assembly is realized by the first damping assembly, which is specifically:

[0053] The damping structure further comprises a first damping assembly, a containing space is arranged in the damper shell 01, the first damping assembly is arranged in the containing space, and the soft damping assembly is movably connected to the first damping assembly.

[0054] The soft damping assembly and the first damping assembly are arranged in the containing space of the damper shell 01, and the soft damping assembly is movably connected to the first damping assembly, and the soft damping assembly is in a movable state in the containing space; if there is an impact vibration on the launcher, the impact vibration is first reduced by the first damping assembly, the vibration transmitted to the soft damping assembly is reduced, and the remaining impact vibration is further reduced by the soft damping assembly, thereby further reducing the vibration transmitted to the sound sensor 04, so as to reduce the influence of the vibration on the measurement accuracy of the sound sensor 04 and improve the measurement accuracy.

[0055] In an explosion environment, the impact vibration signal caused by the vibration transmitted along the launcher is first transmitted to the electrical component mounting shell 02, and then to the first damping assembly. The first damping assembly reduces the impact vibration signal through its elastic deformation or damping effect, thereby reducing the vibration energy transmitted to the soft damping assembly and the sound sensor 04.

[0056] In this embodiment, the first damping assembly comprises a first guide column 05 and a first damping spring 06. The first guide column 05 is arranged in the damper shell 01, the soft damping assembly is externally provided with a sound sensor mounting shell 07, the sound sensor mounting shell 07 is provided with a guide block 08, and the guide block 08 is movably connected to the first guide column 05. The first damping spring 06 is sleeved on both ends of the first guide column 05.

[0057] The sound sensor mounting shell 07 wraps the soft damping assembly, the guide block 08 is integrally formed on the outer surface of the sound sensor mounting shell 07, the connecting hole is arranged on the guide block 08, the first guide column 05 passes through the connecting hole, and the two ends of the first guide column 05 abut against the inner wall of the containing space. The first damping spring 06 is sleeved on the outer surface of the first guide column 05, one end of the first damping spring 06 abuts against the guide block 08, and the other end abuts against the inner wall of the containing space.

[0058] The specific structure of the first damping assembly is composed of the first guide column 05 and the first damping spring 06. The containing space is arranged in the damper shell 01, the first guide column 05 is fixed in the containing space, and the guide block 08 is movably connected to the first guide column 05. Therefore, the sound sensor mounting shell 07 is in a movable state on the first guide column 05.

[0059] The sound sensor mounting shell 07 is movably connected in the accommodating area by the first guide column 05 which is perpendicular to the plane where the through hole on the damper shell 01 is located, the connecting hole on the guide block 08 outside the sound sensor mounting shell 07 is matched with the first guide column 05, the first guide column 05 passes through the connecting hole, so that the sound sensor mounting shell 07 can move relative to the first guide column 05; the first damping spring 06 is sleeved outside the first guide column 05, one end of the first damping spring 06 abuts against the first guide column 05, and the other end abuts against the inner wall of the accommodating space, by arranging the first damping spring 06, when the impact vibration is faced, the sound sensor mounting shell 07 can move relatively by the buffering effect of the first damping spring 06, so as to absorb and reduce the vibration energy.

[0060] When the impact vibration comes, it is first transmitted to the electrical component mounting shell 02 and then to the damper shell 01, since the sound sensor mounting shell 07 is movably connected to the first guide column 05, the first damping spring 06 is pressed by the guide block 08. After being pressed, the first damping spring 06 elastically deforms, buffers and absorbs vibration energy by its elastic restoring force, and reduces the vibration transmitted to the soft damping assembly and the sound sensor 04.

[0061] In this embodiment, the number of the first guide column 05 is 4, and the number of the first damping spring 06 is 8. On the outside of the sound sensor mounting shell 07, four guide blocks 08 are arranged at the same time, each first guide column 05 passes through one guide block 08, and one first damping spring 06 is arranged at each end of each first guide column 05.

[0062] In this embodiment one, the sound sensor 04 is damped by combining the first-stage damping mode (the soft damping assembly dampens the sound sensor 04) and the second-stage damping mode (the first damping assembly is arranged inside the damper shell 09 to damp the sound sensor mounting shell 07), when the impact vibration exists on the transmitter, the impact vibration is first preliminarily damped by the second-stage damping mode (reducing the vibration reaching the sound sensor mounting shell 07), and then the remaining vibration is further damped by the first-stage damping mode (reducing the vibration reaching the sound sensor 04), thereby through twice vibration damping, the influence of the impact vibration on the sound sensor 04 can be reduced, and the measurement accuracy of the sound sensor 04 is improved.

[0063] Embodiment two:

[0064] Different from the second-stage damping mode that the first damping assembly is arranged in the damper shell 01 in the above embodiment one, please continue to refer to Figures 5-8The secondary damping in the embodiment is implemented in an external damping manner, specifically, a second damping assembly is arranged on the electrical component mounting shell 02, and the overall damping of the electrical component mounting shell 02 is realized through the second damping assembly, specifically,

[0065] The damping structure of the application further comprises a connector 10 and a second damping assembly, the connector 10 and the electrical component mounting shell 02 are movably connected through the second damping assembly, and the second damping assembly is used for damping the electrical component mounting shell 02.

[0066] In the embodiment, the second damping assembly is arranged between the connector 10 and the electrical component mounting shell 02, and the electrical component mounting shell 02 is in a movable state through the arrangement of the second damping assembly. Therefore, when the transmitter has impact vibration, the vibration reaches the second damping assembly through the connector 10, the vibration is reduced through the second damping assembly, thereby reducing the vibration reaching the electrical component mounting shell 02, and the vibration is further reduced through the soft damping assembly, thereby reducing the influence of impact vibration on the sound sensor 04 and improving the measurement accuracy of the sound sensor 04.

[0067] The connector 10 is used for connecting with the transmitter, and the connection mode of the connector 10 and the transmitter can be buckle connection, bolt connection, or hoop locking connection. Here, the connection mode of the connector 10 is not limited, and the actual implementable mode is used.

[0068] In this embodiment, the second damping assembly comprises a second guide column 11 and a second damping spring 12, the lower part of the electrical component mounting shell 02 is provided with a damping block 13, the connector 10 is provided with a damper shell 09, the damper shell 09 is provided with a groove 14, the second guide column 11 is arranged in the groove 14, the damping block 13 is located in the groove 14 and movably connected with the second guide column 11, and the second damping spring 12 is sleeved on both ends of the second guide column 11.

[0069] In the embodiment, the damping block 13 is provided with a through hole, the second guide column 11 passes through the through hole, and the second guide column 11 is fixed in the groove 14 of the damper shell 09, the two ends of the second guide column 11 respectively pass through the damper shell 09 outward, the second damping spring 12 is sleeved on the outside of the second guide column 11, one end of the second damping spring 12 abuts against the damping block 13, and the other end abuts against the inner wall of the groove 14.

[0070] In this embodiment, the second damping assembly is composed of the second guide column 11 and the second damping spring 12, and the connection between the electrical component mounting shell 02 and the connector 10 is realized by the second guide column 11 and the second damping spring 12. The damping block 13 is arranged below the electrical component mounting shell 02, the damper shell 09 is arranged on the connector 10, and the groove 14 is arranged on the damper shell 09. The length and width of the groove 14 are greater than the length and width of the damping block 13, so that the damping block 13 can be embedded in the groove 14.

[0071] After the damping block 13 is embedded in the groove 14, the damping block 13 is movably connected in the groove 14 by the second guide column 11 (the damping block 13 can move on the second guide column 11), the electrical component mounting shell 02 is in a movable state on the second guide column 11, the two ends of the second guide column 11 penetrate the inner wall of the groove 14, and the second damping spring 12 is arranged between the damping block 13 and the inner wall of the groove 14. When the transmitter vibrates, the connector 10 vibrates together, and through the cooperation of the second damping spring 12 and the second guide column 11, the vibration transmitted to the electrical component mounting shell 02 is reduced, so that the electrical component mounting shell 02 can move relatively through the buffering action of the first damping spring 06 when facing impact vibration, thereby better absorbing and reducing vibration energy.

[0072] When the impact vibration comes, it is first transmitted to the connector 10, and the electrical component mounting shell 02 is connected to the connector 10 through the second guide column 11 and the second damping spring 12, so that the electrical component mounting shell 02 exerts pressure on the second damping spring 12 through the damping block 13. After the second damping spring 12 is subjected to pressure, it is elastically deformed, buffers and absorbs vibration energy through its own elastic restoring force, and reduces the vibration transmitted to the electrical component mounting shell 02, the soft damping assembly and the sound sensor 04.

[0073] In this embodiment, the number of second guide columns 11 is 2, and the number of second damping springs 12 is 4. Specifically, two perforations are arranged side by side on the damping block 13, and one second guide column 11 can pass through each perforation. The middle part of the second guide column 11 is located in the perforation, and the two ends penetrate the two ends of the groove 14, respectively. The second guide column 11 has an exposed part between the end of the groove 14 and the damping block 13, and the second damping spring 12 is sleeved outside the exposed part. Since there are two exposed parts of one second guide column 11, two second guide columns 11 correspond to four second damping springs 12, so as to ensure the elastic force and have good buffering capacity when dealing with vibration.

[0074] In this embodiment two, the sound sensor 04 is damped by combining the first damping method (the soft damping component dampens the sound sensor 04) and the second damping method (the second damping component is arranged between the electrical component mounting case 02 and the connector 10 to achieve overall damping of the electrical component mounting case 02), when there is an impact vibration on the transmitter, first the impact vibration is preliminarily damped by the second damping method (reducing the vibration reaching the electrical component mounting case 02), and then the remaining vibration is further reduced by the first damping method (reducing the vibration reaching the sound sensor 04), thereby through twice vibration reduction, the impact vibration on the sound sensor 04 can be reduced, and the measurement accuracy of the sound sensor 04 is improved.

[0075] It should be noted that the above description of the disclosed embodiments enables one skilled in the art to make or use the application. Numerous modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments without departing from the scope of the application. Therefore, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vibration damping structure for a sound sensor, characterized in that, include: Vibration damper housing, flexible vibration damping components, and mounting housing for electrical components; The shock absorber housing is connected to the electrical component mounting housing, and a through hole is provided at the front end of the shock absorber housing; The flexible vibration damping component is disposed inside the housing of the vibration damper. The flexible vibration damping component has a receiving cavity for placing the sound sensor. The receiving cavity is connected to the through hole. The flexible vibration damping component is used to dampen the sound sensor.

2. The vibration reduction structure according to claim 1, characterized in that, The vibration damping structure further includes a first vibration damping component. The housing of the vibration damper has a receiving space, and the first vibration damping component is disposed in the receiving space. The flexible vibration damping component is movably connected to the first vibration damping component, and the first vibration damping component is used to dampen the flexible vibration damping component.

3. The vibration reduction structure according to claim 2, characterized in that, The first vibration damping component includes a first guide post and a first vibration damping spring. The first guide post is disposed inside the housing of the vibration damper. The soft vibration damping component is provided with a sound sensor mounting housing on the outside. A guide block is provided on the sound sensor mounting housing. The guide block is movably connected to the first guide post. The first damping springs are respectively sleeved on both ends of the first guide post.

4. The vibration reduction structure according to claim 3, characterized in that, The number of the first guide posts is 4, and the number of the first damping springs is 8.

5. The vibration reduction structure according to claim 1, characterized in that, The vibration damping structure further includes a connector and a second vibration damping component. The connector is movably connected to the electrical component mounting housing via the second vibration damping component, which is used to dampen the vibration of the electrical component mounting housing.

6. The vibration reduction structure according to claim 5, characterized in that, The second vibration damping assembly includes a second guide post and a second vibration damping spring. A vibration damping block is provided below the electrical component mounting housing. A vibration damper housing is provided on the connector. A groove is provided on the vibration damper housing. The second guide post is disposed in the groove. The vibration damping block is located in the groove and is movably connected to the second guide post. The second damping springs are respectively sleeved on both ends of the second guide post.

7. The vibration reduction structure according to claim 6, characterized in that, The number of the second guide posts is 2, and the number of the second damping springs is 4.

8. The vibration damping structure according to any one of claims 1 to 7, characterized in that, The flexible vibration damping assembly includes a first flexible vibration damping ring, a second flexible vibration damping ring, and a third flexible vibration damping ring connected in sequence. The sound sensor is fixed inside the second flexible damping ring.

9. The vibration reduction structure according to claim 8, characterized in that, The first flexible damping ring, the second flexible damping ring, and the third flexible damping ring are made of the same material, which is a sponge material or a foam material.

10. The vibration damping structure according to any one of claims 1 to 7, characterized in that, A dustproof mesh is installed inside the through hole at the front end of the shock absorber housing.

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