Damped micro inertial measurement device

Abstract

The utility model provides a kind of vibration-damping type micro inertial measurement device, belong to inertial measurement technical field, including shell, detection piece and damping assembly, shell is equipped with containing cavity;Detection piece is located in containing cavity;Damping assembly includes the bottom plate being equipped with in shell lower and the locking piece being connected in bottom plate, bottom plate and shell are equipped with corresponding locking hole respectively, locking piece is inserted in corresponding locking hole, damping assembly further includes the first damping pad and the second damping pad of being set to the outside of locking piece;First damping pad is set between shell and bottom plate, for isolating and attenuating vibration transmitted by bottom plate to shell;Second damping pad is sleeved on the periphery of locking piece and is filled in locking hole, for isolating and attenuating vibration transmitted by bottom plate to locking piece.The utility model provides a kind of vibration-damping type micro inertial measurement device, to solve the problem of inconvenient assembly and poor installation consistency of the existing micro inertial measurement combination damping structure.

Description

Technical Field

[0001] This utility model belongs to the field of inertial measurement technology, and more specifically, it relates to a vibration-damping micro inertial measurement device. Background Technology

[0002] Measurement accuracy is the core performance indicator of a micro inertial measurement unit (MIMU). However, during transportation and operation, MIMUs are often exposed to complex mechanical environments and are susceptible to external stresses such as vibration and impact. These mechanical loads are transmitted to the internal core circuitry through the housing, which can trigger unwanted additional output signals, leading to a significant increase in sensor zero bias and severely compromising its measurement accuracy and long-term stability in dynamic environments.

[0003] To address this issue, existing technologies generally employ passive vibration damping by adding damping pads to the bottom, achieving vibration isolation by attaching or assembling soft damping pads such as rubber or silicone to the bottom of the assembly. However, this method has several inherent drawbacks: First, the damping pads typically need to be assembled on-site by the customer after product delivery, increasing the complexity of the installation process and placing high demands on operational standardization, making it prone to introducing additional errors due to improper assembly. Second, because the damping pads themselves are soft and easily deformed, uneven stress or uneven base surfaces during installation can easily cause the assembly to tilt or shift, severely affecting the consistency and stability of the installation, and consequently affecting the accuracy of measurement benchmarks. Furthermore, exposed damping pads are also susceptible to aging and wear, and their vibration damping performance may gradually degrade over long-term use. Therefore, existing vibration damping structures still have significant shortcomings in terms of assembly convenience, installation consistency, and long-term reliability, urgently requiring a new vibration damping solution that can circumvent these defects. Utility Model Content

[0004] The purpose of this invention is to provide a vibration-damping micro-inertial measurement device, which aims to solve the problems of inconvenient assembly and poor installation consistency of existing micro-inertial measurement assemblies.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A vibration-damping micro-inertial measurement device is provided, comprising: The outer shell has a receiving cavity; The detection element is disposed within the receiving cavity; The vibration damping assembly includes a base plate disposed below the outer shell and a locking member connected to the base plate. The base plate and the outer shell are respectively provided with corresponding locking holes. The locking member is inserted into the corresponding locking hole. The vibration damping assembly also includes a first vibration damping pad and a second vibration damping pad sleeved on the outside of the locking member. The first damping pad is located between the outer shell and the base plate, and is used to isolate and attenuate the vibration transmitted from the base plate to the outer shell; the second damping pad is located in the locking hole, and is used to isolate and attenuate the vibration transmitted from the base plate to the locking member.

[0006] In one possible implementation, the bottom of the outer casing is provided with a limiting groove adapted to the first vibration damping pad, the first vibration damping pad is embedded in the limiting groove and pressed against the base plate.

[0007] In one possible implementation, the base plate has a fixing position for connection with an external fixing plate, the fixing position being a fixing post provided on the base plate and / or a fixing hole opened in the base plate.

[0008] In one possible implementation, the base plate further has a positioning protrusion, and the outer shell has a positioning hole adapted to the positioning protrusion, with the positioning protrusion inserted into the positioning hole.

[0009] In one possible implementation, the base plate has a positioning post on the side opposite to the outer casing, the positioning post being used for insertion and positioning with an external fixing plate.

[0010] In one possible implementation, the housing includes: The housing has the receiving cavity, the top of which communicates with the outside. The top of the housing also has a mounting groove communicating with the receiving cavity, and the transition area between the mounting groove and the receiving cavity forms a limiting boss. The sealing cap is fitted into the mounting groove and abuts against the limiting boss.

[0011] In one possible implementation, the housing has a guide portion recessed into the receiving cavity, and the sealing cap has a guide region adapted to the guide portion, the guide portion and the guide region being used to achieve the installation positioning of the sealing cap and the housing.

[0012] In one possible implementation, the vibration-damping micro-inertial measurement device further includes a mounting boss disposed within the receiving cavity. The mounting boss is located in the middle of the receiving cavity in the vertical direction and is connected to the outer shell. The detection element is mounted on the mounting boss and connected to the mounting boss.

[0013] In one possible implementation, the base plate has downwardly projecting support portions spaced at intervals around the outer periphery of the base plate and used to fit against an external fixing plate.

[0014] In one possible implementation, the outer surface of the housing is provided with an anti-misalignment groove.

[0015] The beneficial effects of the vibration-damping micro-inertial measurement device provided by this utility model are as follows: Compared with the prior art, by integrating the vibration damping components with the shell and base plate, the overall assembly can be completed at the factory, eliminating the need for on-site installation of vibration damping pads by the client, greatly simplifying the installation process, avoiding additional errors introduced by improper on-site operation, and improving assembly convenience and efficiency. It utilizes a first and a second vibration damping pad to isolate and attenuate vibrations between the base plate and the shell, and between the locking component and the base plate, forming a dual vibration damping structure. This more comprehensively blocks the transmission of external vibrations and impacts to the detection component, reduces the additional output signal of the core circuit, lowers sensor zero bias, and ensures measurement accuracy and long-term stability. Furthermore, the second vibration damping pad is internally installed through the cooperation of the locking component and the locking hole, while the first vibration damping pad is prevented from being exposed by the compression between the base plate and the shell, reducing the risk of aging and wear, extending the service life of the vibration damping components, and ensuring that the base plate is a rigid planar connection. This effectively avoids installation tilting and offset problems caused by the deformation of soft vibration damping pads, improving the overall installation consistency and structural stability of the device, and making it more suitable for the use requirements of high-precision micro-inertial measurement scenarios. This invention places both the first and second vibration damping pads outside the locking member, using the locking member to limit the position of the first and second vibration damping pads. This not only avoids the problem of force displacement of the first and second vibration damping pads, but also effectively solves the problems of inconvenient assembly and poor installation consistency of existing vibration damping structures, while significantly improving vibration damping performance and long-term reliability. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 An exploded view of the vibration-damping micro-inertial measurement device provided in an embodiment of this utility model; Figure 2 A schematic diagram of the structure of the vibration-damping micro-inertial measurement device provided in an embodiment of this utility model; Figure 3 A bottom view of the vibration-damping micro-inertial measurement device provided in an embodiment of this utility model; Figure 4 A cross-sectional view of the vibration-damping micro-inertial measurement device provided in an embodiment of this utility model; Figure 5 This is a three-dimensional structural diagram of the shell used in the embodiment of this utility model.

[0018] In the diagram: 1. Outer shell; 101. Housing; 1011. Guide section; 102. Sealing cover; 1021. Guide area; 103. Anti-misalignment groove; 104. Mounting boss; 105. Limiting boss; 106. Positioning hole; 107. Limiting groove; 2. Base plate; 201. Fixing position; 202. Locking hole; 203. Positioning protrusion; 204. Positioning post; 205. Support section; 3. Detection component; 301. Circuit board; 302. Floating connector; 4. Locking component; 5. First vibration damping pad; 6. Second vibration damping pad. Detailed Implementation

[0019] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] In the claims, description, and accompanying drawings of this utility model, unless otherwise expressly defined, the terms "first," "second," or "third," etc., are used to distinguish different objects, not to describe a specific order. Unless otherwise stated, other directional terms, such as "vertical," "clockwise," and "counterclockwise," indicate orientation or positional relationships based on the orientation and positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, not to indicate or imply that the referred device or element must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific scope of protection of this utility model. In the claims, description, and accompanying drawings of this utility model, unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" should be interpreted broadly, that is, any connection method in which there is no displacement relationship or relative rotation relationship between the two, that is, including non-removable fixed connection, detachable fixed connection, integral connection, and fixed connection through other devices or elements. In the claims, description, and accompanying drawings of this utility model, the terms "comprising," "having," and their variations are intended to mean "including but not limited to."

[0021] Please refer to the following: Figures 1 to 5The vibration-damping micro-inertial measurement device provided by this utility model will now be described. The vibration-damping micro-inertial measurement device includes a housing 1, a detection element 3, and a vibration damping assembly. The housing 1 has a receiving cavity; the detection element 3 is disposed in the receiving cavity; the vibration damping assembly includes a base plate 2 disposed below the housing 1 and a locking element 4 connected to the base plate 2. The base plate 2 and the housing 1 respectively have corresponding locking holes 202. The locking element 4 is inserted into the corresponding locking hole 202. The vibration damping assembly also includes a first vibration damping pad 5 and a second vibration damping pad 6 sleeved outside the locking element 4; wherein, the first vibration damping pad 5 is located between the housing 1 and the base plate 2, and is used to isolate and attenuate the vibration transmitted from the base plate to the housing 1; the second vibration damping pad 6 is disposed in the locking hole 202, and is used to isolate and attenuate the vibration transmitted from the locking element 4 to the base plate 2.

[0022] The vibration-damping micro-inertial measurement device provided by this utility model, compared with the prior art, integrates the vibration damping components with the outer shell 1 and the base plate 2, allowing for complete assembly at the factory. This eliminates the need for on-site installation of vibration damping pads by the customer, significantly simplifying the installation process, avoiding additional errors introduced by improper on-site operation, and improving assembly convenience and efficiency. It utilizes the first vibration damping pad 5 and the second vibration damping pad 6 to isolate and attenuate vibrations between the base plate 2 and the outer shell 1, and between the locking member 4 and the base plate 2, respectively, forming a dual vibration damping structure. This more comprehensively blocks external vibrations and impacts from being transmitted to the detection element 3, reducing the additional output signal of the core circuit, lowering sensor zero bias, and ensuring measurement accuracy and long-term stability. Furthermore, the second damping pad 6 is internally installed through the cooperation of the locking member 4 and the locking hole 202, while the first damping pad 5 is prevented from being exposed by the compression between the base plate 2 and the outer shell 1, reducing the risk of aging and wear, extending the service life of the damping components, and ensuring that the base plate 2 is a rigid planar connection, effectively avoiding installation tilting and offset problems caused by the deformation of the soft damping pad, improving the overall installation consistency and structural stability of the device, and making it more suitable for the use requirements of high-precision micro-inertial measurement scenarios. In this utility model, both the first damping pad 5 and the second damping pad 6 are sleeved outside the locking member 4, and the locking member 4 is used to limit the first damping pad 5 and the second damping pad 6. This not only avoids the problem of the first damping pad 5 and the second damping pad 6 being offset by force, but also effectively solves the problems of inconvenient assembly and poor installation consistency of existing damping structures, while significantly improving the damping performance and long-term reliability.

[0023] Optionally, the housing 1 also has a detection opening connected to the receiving cavity along a second path, and the base plate 2 has a clearance opening corresponding to the detection opening. The detection component 3 includes a circuit board 301 and a floating connector 302 electrically connected to the circuit board 301, with the detection opening corresponding to the floating connector 302. The floating connector 302 is electrically connected to an external connector to realize the transmission of detection signals. The floating connector 302 has position compensation capability. Through a built-in elastic structure or movable component, it allows for a certain radial, axial, or angular deviation between the plug and socket during mating, while still achieving a stable electrical connection. The floating design eliminates the impact of installation errors and vibration displacement on connection reliability. The floating connector 302, in conjunction with vibration damping components, can further mitigate multiaxial vibration and impact.

[0024] Optionally, both the first damping pad 5 and the second damping pad 6 are rubber components.

[0025] In some embodiments, please refer to Figures 4 to 5 The bottom of the outer shell 1 is provided with a limiting groove 107 adapted to the first vibration damping pad 5. The first vibration damping pad 5 is embedded in the limiting groove 107 and pressed against the base plate 2.

[0026] The first vibration damping pad 5 is embedded in the limiting groove 107, which can fix its installation position and prevent lateral displacement of the vibration damping pad during assembly or long-term use. This ensures that the vibration damping pad is always at the preset vibration damping point, guaranteeing the stability of the vibration damping effect. Simultaneously, the first vibration damping pad 5 forms a compression fit with the base plate 2. This close contact allows vibration force to be transmitted to the damping pad and absorbed more efficiently, reducing vibration force loss in the transmission path and improving vibration isolation efficiency. Furthermore, the design of the limiting groove 107 makes the assembly of the first vibration damping pad 5 more directional, allowing for precise installation without the need for complex positioning tools. This further simplifies the assembly process, improves production and assembly efficiency, and ensures the consistency of the installation position of the vibration damping pads in each device during mass production, laying the foundation for consistent overall installation in subsequent processes.

[0027] In some embodiments, please refer to Figure 3 The base plate 2 has a fixing position 201 for connecting with an external fixing plate. The fixing position 201 is a fixing post provided on the base plate 2 and / or a fixing hole opened in the base plate 2.

[0028] The fixing post can directly interlock with the corresponding holes on the external fixing plate, achieving initial positioning without the need for additional connectors and simplifying the installation process. The fixing holes are compatible with conventional fasteners such as bolts and screws, meeting connection requirements with varying strengths. Both structures can be used individually or in combination, adapting to various external fixing plate connection designs and significantly expanding the application scenarios of the device.

[0029] Meanwhile, the structural design of the fixing columns and fixing holes accurately positions the connection between the base plate 2 and the external fixing plate, preventing misalignment during installation and ensuring the coaxiality and levelness of the overall installation of the device, further enhancing installation consistency. Furthermore, the fixing columns enhance the pull-out resistance after the base plate 2 and the fixing plate are connected, while the fixing holes, combined with fasteners, improve the tightness of the connection. The combination of these two features effectively resists the impact of external vibrations and shocks on the connection structure, preventing loosening during long-term use and ensuring the long-term reliability of the connection between the device and the external carrier.

[0030] Optionally, when the base plate 2 has a fixing post, the fixing post is snapped or screwed to the fixing plate. For example, the fixing post is a bolt, which is inserted into the fixing plate and locked by a nut. When the fixing position 201 is a fixing hole, the fixing hole is adapted to the opening of the fixing plate, and the connection between the fixing plate and the base plate 2 is achieved by inserting a bolt into the fixing hole and the corresponding opening.

[0031] In some embodiments, please refer to Figure 1 and Figure 4 , Figure 5 The base plate 2 also has a positioning protrusion 203, and the outer shell 1 has a positioning hole 106 adapted to the positioning protrusion 203, and the positioning protrusion 203 is inserted into the positioning hole 106. The positioning protrusion 203 and the positioning hole 106 engage to provide a rough positioning function, improving installation efficiency. A reasonable gap is provided at the circumferential limit, preventing a completely rigid lateral connection between the base plate 2 and the outer shell 1. When lateral vibration occurs, the gap provides lateral deformation space for the first damping pad 5, allowing it to fully exert its lateral damping effect, effectively reducing the lateral vibration transmitted from the base plate 2 to the outer shell 1. This further optimizes the overall vibration damping performance of the device, reduces the impact of vibration on the outer shell 1 and internal components, and improves the stability and reliability of the device operation. Furthermore, the positioning protrusion 203 effectively extends the thread depth in the base plate 2, eliminating the need to thicken the base plate 2 itself to achieve sufficient thread connection length. This avoids the space occupation problem caused by thickening the base plate 2 while ensuring the structural strength of the connection between the base plate 2 and the outer shell 1, making the structural design more suitable for the compact device layout requirements.

[0032] In some embodiments, please refer to Figure 3 The base plate 2 also has a positioning post 204 on the side opposite to the outer shell 1. The positioning post 204 is used for insertion and positioning with the external fixing plate. The positioning post 204 can directly interlock with the corresponding holes on the external fixing plate, providing precise pre-positioning before the device is connected to the fixing plate. This eliminates the need for additional positioning tools, allowing for quick determination of the installation position, significantly shortening assembly time and reducing the workload for operators. This is particularly suitable for automated assembly or space-constrained installation scenarios. Simultaneously, the interlocking positioning method strictly limits the relative horizontal displacement between the base plate 2 and the fixing plate, preventing misalignment or offset during installation and ensuring the coaxiality and levelness of the overall device installation. Furthermore, the interlocking fit between the positioning post 204 and the fixing plate enhances the shear resistance after connection, reducing loosening of the connection structure caused by external vibration and impact, and improving the long-term reliability of the connection between the device and the external carrier.

[0033] In some embodiments, please refer to Figures 1 to 2 The outer casing 1 includes a housing 101 and a sealing cover 102. The housing 101 has a receiving cavity, the top of which is connected to the outside. The top of the housing 101 also has a mounting groove connected to the receiving cavity. The transition area between the mounting groove and the receiving cavity forms a limiting boss 105. The sealing cover 102 is embedded in the mounting groove and abuts against the limiting boss 105.

[0034] The sealing cap 102 is embedded in the mounting groove, and with the abutment and limiting of the limiting boss 105, the sealing cap 102 and the housing 101 can be quickly and accurately aligned. This ensures the consistency of the sealing cap 102's installation position without complex calibration, avoiding sealing failure due to assembly deviations and simplifying the assembly process. The limiting boss 105 provides stable support for the sealing cap 102, preventing deformation or displacement under pressure or vibration, ensuring the long-term stability of the sealing structure. The fitting structure of the mounting groove and the sealing cap 102 increases the contact area, improving the connection seal and effectively preventing external dust, moisture, oil, and other impurities from entering the receiving cavity.

[0035] Optionally, the sealing cap 102 is interference-fitted with the mounting groove.

[0036] Optionally, the sealing cap 102 can be bonded or welded to the limiting boss 105, or it can be screwed or snapped together. In some embodiments, please refer to Figures 1 to 2 The housing 101 has a guide portion 1011 recessed into the receiving cavity, and the sealing cover 102 has a guide area 1021 adapted to the guide portion 1011. The guide portion 1011 and the guide area 1021 are used to achieve the installation and positioning of the sealing cover 102 and the housing 101. The fitting of the guide portion 1011 and the guide area 1021 provides positioning and guidance during the installation of the sealing cover 102. This not only allows for rapid calibration of the installation angle and position of the sealing cover 102 through structural complementarity, avoiding errors from manual alignment, but also restricts the horizontal displacement or rotation of the sealing cover 102, ensuring its precise fit within the installation groove. Simultaneously, the tight fit between the recessed guide portion 1011 and the guide area 1021 of the sealing cover 102 enhances the connection rigidity, reducing the swaying or displacement of the sealing cover 102 under vibration and impact conditions. This prevents an increase in the sealing gap due to displacement of the sealing cover 102, further ensuring the sealing performance of the receiving cavity. Furthermore, the guide structure design makes the assembly of the sealing cover 102 more error-tolerant. Even if the operator does not fully align the initial position, the guide portion 1011 can guide the sealing cover 102 to automatically correct itself to the correct installation position, reducing assembly difficulty and improving assembly efficiency and success rate.

[0037] In some embodiments, please refer to Figure 1 The vibration-damping micro inertial measurement device also includes a mounting boss 104 located in the cavity. The mounting boss 104 is located in the middle of the cavity in the vertical direction and is connected to the outer shell 1. The detection component 3 is mounted on the mounting boss 104 and connected to the mounting boss 104.

[0038] The mounting boss 104 places the test piece 3 in the middle of the receiving cavity, rather than directly against the inner wall of the outer shell 1. This significantly reduces the impact of external vibrations transmitted from the outer shell 1 on the test piece 3, thereby reducing the interference of vibrations on the core circuit of the test piece 3, reducing additional output signals, and ensuring measurement accuracy. At the same time, the middle mounting position ensures that the test piece 3 maintains a certain distance from the upper and lower walls of the receiving cavity. This avoids the squeezing or temperature effects on the test piece 3 caused by deformation or temperature difference of the upper and lower walls of the outer shell 1, and also provides space for wiring and heat dissipation around the test piece 3, facilitating the optimization of the internal circuit layout and heat dissipation, and improving the working stability of the test piece 3.

[0039] Optionally, the test piece 3 can be bonded, screwed, or snapped to the mounting boss 104, or it can be welded.

[0040] In some embodiments, please refer to Figure 3 The base plate 2 has downwardly protruding support portions 205, which are spaced apart on the outer periphery of the base plate 2 and are used to fit with the external fixing plate. The close fit between the support part 205 and the external fixing plate, through the spaced distribution structure, supports the base plate 2 on the surface of the fixing plate, effectively avoiding the influence of minor protrusions, depressions, or impurities on the base surface of the fixing plate on the flatness of the base plate 2, ensuring that the base plate 2 always remains in a horizontal and stable state. In addition, the spaced distribution of the support on the outer periphery can evenly distribute the weight of the device to multiple support points, avoiding deformation of the support part 205 caused by local stress concentration, and enhancing the structural stability after the base plate 2 is connected to the fixing plate.

[0041] In some embodiments, please refer to Figure 1 The outer shell 1 has an anti-misalignment groove 103 on its exterior. The error-proof groove 103 forms a clearly visible structural feature on the outside of the outer shell 1, which can serve as an intuitive identification mark for product orientation. Workers do not need to use additional tools or drawings for reference; they can quickly distinguish the front and back, up and down, and other orientations of the product simply by observing its appearance. This not only facilitates the placement, transfer, and assembly verification of products during the production process but also provides a convenient basis for orientation judgment for subsequent inspection and maintenance operations, thereby improving the overall ease of operation.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vibration-damping micro-inertial measurement device, characterized in that, include: The outer shell has a receiving cavity; The detection element is disposed within the receiving cavity; The vibration damping assembly includes a base plate disposed below the outer shell and a locking member connected to the base plate. The base plate and the outer shell are respectively provided with corresponding locking holes. The locking member is inserted into the corresponding locking hole. The vibration damping assembly also includes a first vibration damping pad and a second vibration damping pad sleeved on the outside of the locking member. The first vibration damping pad is located between the outer shell and the base plate, and is used to isolate and attenuate the vibration transmitted from the base plate to the outer shell; The second vibration damping pad is disposed in the locking hole to isolate and attenuate the vibration transmitted from the base plate to the locking member.

2. The vibration-damping micro-inertial measurement device as described in claim 1, characterized in that, The bottom of the outer shell is provided with a limiting groove adapted to the first vibration damping pad. The first vibration damping pad is embedded in the limiting groove and pressed against the base plate.

3. The vibration-damping micro-inertial measurement device as described in claim 1, characterized in that, The base plate has a fixing position for connecting with an external fixing plate, the fixing position being a fixing post provided on the base plate and / or a fixing hole opened in the base plate.

4. The vibration-damping micro-inertial measurement device as described in claim 1, characterized in that, The base plate also has a positioning protrusion, and the outer shell has a positioning hole adapted to the positioning protrusion, with the positioning protrusion inserted into the positioning hole.

5. The vibration-damping micro-inertial measurement device as described in claim 1, characterized in that, The base plate also has a positioning post on the side opposite to the outer shell, which is used for insertion and positioning with the external fixing plate.

6. The vibration-damping micro-inertial measurement device as described in claim 1, characterized in that, The outer casing includes: The housing has the receiving cavity, the top of which communicates with the outside. The top of the housing also has a mounting groove communicating with the receiving cavity, and the transition area between the mounting groove and the receiving cavity forms a limiting boss. The sealing cap is fitted into the mounting groove and abuts against the limiting boss.

7. The vibration-damping micro-inertial measurement device as described in claim 6, characterized in that, The housing has a guide portion recessed into the receiving cavity, and the sealing cover has a guide area adapted to the guide portion. The guide portion and the guide area are used to achieve the installation and positioning of the sealing cover and the housing.

8. The vibration-damping micro-inertial measurement device as described in claim 1, characterized in that, The vibration-damping micro-inertial measurement device also includes a mounting boss disposed in the receiving cavity. The mounting boss is located in the middle part of the receiving cavity in the vertical direction and is connected to the outer shell. The detection component is mounted on the mounting boss and connected to the mounting boss.

9. The vibration-damping micro-inertial measurement device as described in claim 1, characterized in that, The base plate has downwardly protruding support portions, which are spaced apart on the outer periphery of the base plate and are used to fit with an external fixing plate.

10. The vibration-damping micro-inertial measurement device as described in claim 1, characterized in that, The outer shell has anti-misalignment grooves on its exterior.

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