MEMS inertial measurement unit gyroscope temperature compensation equipment

Abstract

The utility model discloses gyroscope temperature compensation equipment for an MEMS (Micro Electro Mechanical System) inertial measurement unit, and relates to the technical field. The device comprises a rectangular bottom plate, wherein a damping mechanism and a temperature compensation mechanism are arranged on the rectangular bottom plate; the damping mechanism comprises a first damping assembly, two second damping assemblies and a plurality of third damping assemblies, the first damping assembly comprises a plurality of supporting blocks fixedly mounted at the top of the rectangular bottom plate, dampers are fixedly mounted at the tops of the multiple supporting blocks correspondingly, and a supporting plate is fixedly mounted at the top ends of the multiple dampers; the multiple dampers are wound with first springs correspondingly, the bottom ends of the first springs are fixedly connected with the multiple supporting blocks correspondingly, and the top ends of the first springs are fixedly connected with the supporting plate. According to the utility model, the vibration reduction mechanism is arranged, so that the problems that the accuracy and the stability of the inertial sensor are influenced by the interference of external vibration and errors of measured data are caused are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field, and particularly relates to a gyro temperature compensation device of a MEMS inertial measurement unit. Background Art

[0002] MEMS (Micro-Electro-Mechanical Systems) inertial measurement unit gyro temperature compensation device is an electronic module or chip that integrates MEMS inertial measurement unit and temperature compensation function. It is mainly used to measure and detect the attitude, acceleration and other information of the equipment, and through temperature compensation technology, it can provide more accurate and reliable measurement data in different temperature environments.

[0003] During use, the existing MEMS inertial measurement unit gyro temperature compensation device is easily disturbed by external vibration, which affects the accuracy and stability of the inertial sensor and causes errors in the measurement data. Utility Model Content

[0004] The utility model aims to provide a MEMS inertial measurement unit gyro temperature compensation device, which solves the problem that the inertial sensor is easily disturbed by external vibrations, affects the accuracy and stability of the inertial sensor, and causes errors in the measurement data by setting a shock absorbing mechanism.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a MEMS inertial measurement unit gyro temperature compensation device, comprising a rectangular bottom plate, on which a shock absorbing mechanism and a temperature compensation mechanism are arranged;

[0007] The shock absorbing mechanism includes a shock absorbing component 1, two shock absorbing components 2 and several shock absorbing components 3. The shock absorbing component 1 includes several support blocks fixedly installed on the top of the rectangular bottom plate, dampers are fixedly installed on the tops of several support blocks, support plates are fixedly installed on the tops of several dampers, springs 1 are respectively wound around several dampers, the bottom ends of several springs 1 are fixedly connected to several support blocks, and the tops of several springs 1 are fixedly connected to the support plates.

[0008] Furthermore, the shock absorbing component 2 includes a sliding rod fixedly installed on the side of the two support blocks close to each other, and two sliders are slidably installed on the sliding rod. A spring 2 is wound on the sliding rod, and the top and end of the spring 2 are respectively fixedly connected to the two sliders.

[0009] Furthermore, the shock absorbing component three includes a connecting rod hingedly installed on the top of the slider, a connecting block one is fixedly installed on the bottom of the support plate, and the end of the connecting rod is hingedly connected to the connecting block one.

[0010] Furthermore, the temperature compensation mechanism includes a temperature compensation component 1 and a temperature compensation component 2, the temperature compensation component 1 includes a protective shell fixedly installed on the top of the support plate, a circular groove is opened on the back of the protective shell, and a cross support frame is fixedly installed on the inner wall of the circular groove.

[0011] Furthermore, a motor is fixedly mounted on the back of the cross support frame, a rotating shaft runs through the cross support frame, the rotating shaft is rotatably connected to the cross support frame, the end of the rotating shaft is fixedly connected to the output shaft of the motor, and a fan is fixedly sleeved on the rotating shaft.

[0012] Furthermore, the temperature compensation component 2 includes a connecting block 2 fixedly mounted on the left and right inner walls of the protective shell, a heating ring is fixedly mounted on the side where the two connecting blocks 2 are close to each other, and a plurality of heating coils are fixedly mounted on the inner wall of the heating ring.

[0013] Furthermore, a heat conducting plate with holes is fixedly mounted on the inner wall of the heating ring, an inertial measurement unit is fixedly mounted on the top of the support plate, and a plurality of ventilation slots are opened on the top of the protective shell.

[0014] The utility model has the following beneficial effects:

[0015] 1. By setting a shock-absorbing mechanism, when the device is vibrated, the vibration will reduce it under the cooperation of the damper and the spring 1, and the vibration will cause the support plate to move downward. The downward displacement of the support plate drives the connecting rod and the slider to move, so that the two sliders are close to each other. After the slider moves, the impact force it receives is transmitted to the spring 2, so that the spring 2 shares the impact force received by the spring 1, further improving the stability of the device during use, so that the vibration and vibration from the external environment can be effectively suppressed. These vibrations may come from the working environment of the device, such as vehicle movement, mechanical vibration, etc. The device can reduce the interference of external vibration on the inertial sensor, ensure the accuracy and stability of the sensor measurement, reduce the propagation and influence of noise signals, improve the quality and reliability of signals, alleviate the influence of external shock on the device to a certain extent, protect the precision components inside the device from damage, extend the service life of the device and reduce maintenance costs;

[0016] 2. By setting a temperature compensation mechanism, when the temperature of the inertial measurement unit is low, the heating ring can be turned on first to heat it with the heating coil inside. The heat generated by the heating coil after heating is transferred to the perforated heat conducting plate. At this time, the motor is started, and the motor fan rotates to blow the outside wind onto the perforated heat conducting plate, and the heat on the perforated heat conducting plate is evenly blown to the inertial measurement unit to complete the heating of the inertial measurement unit. When the temperature of the inertial measurement unit is high, the heating ring is turned off and only the motor is started to drive the fan to dissipate the heat of the inertial measurement unit. This makes it possible to correct the output drift and offset of the MEMS inertial sensor due to temperature changes, thereby improving the measurement accuracy of the equipment, ensuring the output stability of the sensor at different temperatures, and enabling the equipment to maintain consistent performance within a wide operating temperature range, which can improve the reliability of the equipment, reduce the risk of failure caused by temperature changes, and be able to operate stably in various complex working environments, including applications under extreme temperature conditions, thereby enhancing the environmental adaptability of the equipment, reducing the error caused by the product being affected by temperature, and thus improving the quality and performance stability of the product.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a schematic diagram of the structure of a MEMS inertial measurement unit gyro temperature compensation device of the utility model;

[0020] Figure 2 It is a side cross-sectional structural schematic diagram of a MEMS inertial measurement unit gyro temperature compensation device of the utility model;

[0021] Figure 3 This utility model is a MEMS inertial measurement unit gyro temperature compensation device Figure 1 A is a schematic diagram of the enlarged structure of the middle part;

[0022] Figure 4 This utility model is a MEMS inertial measurement unit gyro temperature compensation device Figure 2 A schematic diagram of the enlarged structure of B;

[0023] Figure 5 This utility model is a MEMS inertial measurement unit gyro temperature compensation device Figure 2Schematic diagram of the enlarged structure of C in the figure.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1. Rectangular base plate; 2. Support block; 3. Damper; 4. Support plate; 5. Spring 1; 6. Sliding rod; 7. Sliding block; 8. Spring 2; 9. Connecting rod; 10. Connecting block 1; 11. Protective shell; 12. Circular groove; 13. Cross support frame; 14. Motor; 15. Rotating shaft; 16. Fan; 18. Connecting block 2; 19. Heating ring; 20. Heating coil; 21. Thermal conductive plate with holes; 22. Inertial measurement unit; 23. Ventilation slot. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-5As shown, the utility model is a MEMS inertial measurement unit gyro temperature compensation device, including a rectangular bottom plate 1, a shock absorbing mechanism and a temperature compensation mechanism are arranged on the rectangular bottom plate 1, the shock absorbing mechanism includes a shock absorbing component 1, two shock absorbing components 2 and a plurality of shock absorbing components 3, the shock absorbing component 1 includes a plurality of support blocks 2 fixedly mounted on the top of the rectangular bottom plate 1, the shock absorbing component 2 includes a slide bar 6 fixedly mounted on one side of the two support blocks 2 close to each other, two slide blocks 7 are slidably mounted on the slide bar 6, the shock absorbing component 3 includes a connecting rod 9 hingedly mounted on the top of the slide block 7, a connecting block 10 is fixedly mounted on the bottom of the support plate 4, and the end of the connecting rod 9 is hinged to the connecting block 10, and the shock absorbing component 2 can reduce the propagation and influence of noise signals, improve the quality and reliability of signals It can alleviate the impact of external shock on the equipment to a certain extent, protect the precision parts inside the equipment from damage, extend the service life of the equipment and reduce maintenance costs. A spring 28 is wound on the slide bar 6. The top and the end of the spring 28 are respectively fixedly connected to the two slide blocks 7. Dampers 3 are fixedly installed on the tops of several support blocks 2. Support plates 4 are fixedly installed on the tops of several dampers 3. The temperature compensation mechanism includes a temperature compensation component 1 and a temperature compensation component 2. The temperature compensation component 1 includes a protective shell 11 fixedly installed on the top of the support plate 4. The temperature compensation component 2 includes a connecting block 2 18 fixedly installed on the left and right inner walls of the protective shell 11. A heating ring 19 is fixedly installed on the side where the two connecting blocks 2 18 are close to each other. The heating ring 19 A perforated heat conducting plate 21 is fixedly installed on the inner wall of the support plate 4, an inertial measurement unit 22 is fixedly installed on the top of the support plate 4, a plurality of ventilation slots 23 are opened on the top of the protective shell 11, and a plurality of heating coils 20 are fixedly installed on the inner wall of the heating ring 19. The temperature compensation component 2 can operate stably in various complex working environments, including applications under extreme temperature conditions, thereby enhancing the environmental adaptability of the equipment, reducing the error caused by the temperature of the product, thereby improving the quality and performance stability of the product, a circular groove 12 is opened on the back of the protective shell 11, and a cross support frame 13 is fixedly installed on the inner wall of the circular groove 12. The temperature compensation component 1 can correct the drift and offset of the output of the MEMS inertial sensor due to temperature changes, thereby improving the measurement accuracy of the equipment. Accuracy, to ensure the output stability of the sensor at different temperatures, a motor 14 is fixedly installed on the back of the cross support frame 13, a rotating shaft 15 runs through the cross support frame 13, the rotating shaft 15 is rotatably connected to the cross support frame 13, the end of the rotating shaft 15 is fixedly connected to the output shaft of the motor 14, a fan 16 is fixedly sleeved on the rotating shaft 15, a plurality of dampers 3 are respectively wound with springs 5, the bottom ends of the plurality of springs 5 ​​are respectively fixedly connected to the plurality of support blocks 2, the top ends of the plurality of springs 5 ​​are fixedly connected to the support plate 4, the shock absorbing component 1 can effectively suppress vibrations and vibrations from the external environment, these vibrations may come from the working environment of the equipment, such as vehicle movement, mechanical vibration, etc., the equipment can reduce the interference of external vibrations on the inertial sensor,Ensure the accuracy and stability of sensor measurement.

[0028] A specific application of this embodiment is: when in use, first install the device at the corresponding position. When the temperature of the inertial measurement unit 22 is low, the heating ring 19 on the connecting block 18 can be turned on first, so that the heating coil 20 inside it heats it. The heat generated by the heating coil 20 after heating is transferred to the perforated heat-conducting plate 21. At this time, the motor 14 on the cross support frame 13 is started, and the motor 14 drives the fan 16 to rotate through the rotating shaft 15, so that the external wind is blown into the perforated heat-conducting plate 21 in the protective shell 11 through the circular groove 12 on the protective shell 11, and the heat on the perforated heat-conducting plate 21 is evenly blown to the inertial measurement unit 22, completing the inertial measurement. The heating of the measuring unit 22. When the temperature of the inertial measurement unit 22 is high, the heating ring 19 is turned off and only the motor 14 is started to drive the fan 16 to dissipate the heat of the inertial measurement unit 22. When the device is vibrated, the vibration will reduce it with the cooperation of the damper 3 and the spring 1 5 on the support block 2. The vibration will cause the support plate 4 to move downward. The downward displacement of the support plate 4 drives the connecting rod 9 and the slider 7 to move, so that the two sliders 7 are close to each other. After the slider 7 moves, the impact force it receives is transmitted to the spring 2 8, so that the spring 2 8 shares the impact force received by the spring 1 5, further improving the stability of the device during use.

[0029] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A MEMS inertial measurement unit gyro temperature compensation device, comprising a rectangular base plate (1), characterized in that: The rectangular bottom plate (1) is provided with a shock absorbing mechanism and a temperature compensation mechanism; The shock absorbing mechanism comprises a shock absorbing component 1, two shock absorbing components 2 and a plurality of shock absorbing components 3, wherein the shock absorbing component 1 comprises a plurality of support blocks (2) fixedly mounted on the top of a rectangular bottom plate (1), a damper (3) is fixedly mounted on the top of each of the support blocks (2), a support plate (4) is fixedly mounted on the top of each of the dampers (3), a spring 1 (5) is wound around each of the dampers (3), the bottom ends of each of the springs 1 (5) are fixedly connected to the plurality of support blocks (2), and the top ends of each of the springs 1 (5) are fixedly connected to the support plate (4), and the temperature compensation mechanism comprises a temperature compensation component 1 and a temperature compensation component 2, wherein the temperature compensation component 1 comprises a protective shell (11) fixedly mounted on the top of the support plate (4), and the protective shell ( A circular groove (12) is provided on the back of the protective shell (11), a cross support frame (13) is fixedly installed on the inner wall of the circular groove (12), a motor (14) is fixedly installed on the back of the cross support frame (13), a rotating shaft (15) passes through the cross support frame (13), the rotating shaft (15) is rotatably connected to the cross support frame (13), the end of the rotating shaft (15) is fixedly connected to the output shaft of the motor (14), a fan (16) is fixedly sleeved on the rotating shaft (15), and the temperature compensation component II includes connecting blocks II (18) fixedly installed on the left and right inner walls of the protective shell (11), a heating ring (19) is fixedly installed on the side where the two connecting blocks II (18) are close to each other, and a plurality of heating coils (20) are fixedly installed on the inner wall of the heating ring (19).

2. A MEMS inertial measurement unit gyro temperature compensation device according to claim 1, characterized in that: The second shock absorbing component comprises a sliding rod (6) fixedly mounted on one side of two supporting blocks (2) close to each other, two sliding blocks (7) being slidably mounted on the sliding rod (6), a second spring (8) being wound around the sliding rod (6), and the top and the end of the second spring (8) being fixedly connected to the two sliding blocks (7) respectively.

3. A MEMS inertial measurement unit gyro temperature compensation device according to claim 2, characterized in that: The shock absorbing component three comprises a connecting rod (9) hingedly mounted on the top of the slider (7), a connecting block (10) is fixedly mounted on the bottom of the support plate (4), and the end of the connecting rod (9) is hingedly connected to the connecting block (10).

4. The MEMS inertial measurement unit gyro temperature compensation device according to claim 3, characterized in that: A heat conducting plate (21) with holes is fixedly mounted on the inner wall of the heating ring (19), an inertial measurement unit (22) is fixedly mounted on the top of the support plate (4), and a plurality of ventilation slots (23) are provided on the top of the protective shell (11).

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