Miniature three-axis sensor

Abstract

The utility model relates to the technical field of three-axis acceleration sensors, and discloses a miniature three-axis sensor, which comprises a screw rod and a miniature three-axis sensor body, the upper side and the lower side of the miniature three-axis sensor body are respectively connected with a protective shell in a clamping manner, and the inner walls of the two protective shells are respectively and fixedly adhered with a rubber pad. And connecting plates are fixedly connected to the two sides of the two protective shells correspondingly, and the two connecting plates are in threaded connection through screws. According to the technical scheme, the two protection shells are clamped at the upper end and the lower end of the miniature three-axis sensor body, the two fixing plates are spliced together accordingly, then the two protection shells are locked through cooperation of the connecting plate and the screw rod, the protection plug is inserted into the notch between the two fixing plates, and the miniature three-axis sensor body is fixed through the protection plug. The protection plug is arranged on the connector in a sleeving mode, a good moisture-proof effect can be achieved in cooperation with moisture-proof cotton, the shell of the miniature three-axis sensor body can be effectively protected through cooperation of the structure, and the miniature three-axis sensor is convenient to use and practical.

Description

Technical Field

[0001] The utility model relates to the technical field of three-axis acceleration sensors, in particular to a miniature three-axis sensor. Background Art

[0002] Among the acceleration sensors, there is a three-axis acceleration sensor. It also works based on the basic principle of acceleration. Acceleration is a space vector. On the one hand, to accurately understand the motion state of an object, its components on the three coordinate axes must be measured; on the other hand, when the direction of the object's motion is unknown in advance, only the three-axis acceleration sensor can be used to detect the acceleration signal. Since the three-axis acceleration sensor is also based on the principle of gravity, the three-axis acceleration sensor can achieve a dual-axis inclination of positive and negative 90 degrees or a dual-axis inclination of 0-360 degrees. After correction, the accuracy is higher than that of the dual-axis acceleration sensor when the measurement angle is greater than 60 degrees. It is now widely used in the field of drones.

[0003] The patent document with the published announcement number CN211603246U discloses a three-axis acceleration sensor, which includes: a housing, which is an integrally formed structure with a cavity inside; three uniaxial piezoelectric acceleration modules, which are embedded in the housing in pairs and perpendicular to each other; and a connector, which is arranged on the housing and connected to the uniaxial piezoelectric acceleration modules. It can monitor acceleration in three orthogonal axes at the same time, can operate in a high temperature environment, and can prevent interference from external electromagnetic signals, thereby improving measurement accuracy and stability.

[0004] The micro triaxial acceleration sensor of the prior art has low requirements for the storage location after use. When stored in a relatively humid environment, the connector of the triaxial sensor is easily affected by moisture, affecting normal use. Therefore, a micro triaxial sensor is needed. Utility Model Content

[0005] The purpose of the utility model is to provide a miniature three-axis sensor to solve the problems raised in the background technology.

[0006] An embodiment of the present application provides a miniature three-axis sensor, including a screw and a miniature three-axis sensor body, wherein the upper and lower sides of the miniature three-axis sensor body are snap-connected with protective shells, the inner walls of the two protective shells are glued and fixed with rubber pads, the two sides of the two protective shells are fixedly connected with connecting plates, the two connecting plates are threadedly connected by screws, the front wall of the miniature three-axis sensor body is provided with a connector, the front walls of the two protective shells are fixedly connected with fixing plates, the two fixing plates are provided with slots on opposite sides, the insides of the two slots are snap-connected with protective plugs, and the inner walls of the protective plugs are glued and fixed with moisture-proof cotton.

[0007] By adopting the above technical solution, firstly, the two protective shells are snapped into the upper and lower ends of the micro three-axis sensor body, and the two fixing plates are spliced ​​together. Then, the two protective shells are locked by the cooperation of the connecting plate and the screw. After that, the protective plug is inserted into the groove between the two fixing plates until the protective plug is sleeved on the outside of the connector. It can play a good moisture-proof effect with the moisture-proof cotton. In addition, the cooperation of the above structure can also effectively protect the shell of the micro three-axis sensor body, which is convenient and practical.

[0008] Optionally, the cross section of the protective shell is a concave structure, and the opening width of the protective shell is matched with the width of the micro three-axis sensor body.

[0009] The adoption of the above technical solution is helpful to improve the installation stability of the miniature three-axis sensor body.

[0010] Optionally, the diameter of the protective plug matches the diameter of the circular hole formed by the two notches.

[0011] The adoption of the above technical solution is conducive to improving the firmness of the installation of the protective plug and preventing it from falling off.

[0012] Optionally, the connector is designed as a four-core structure.

[0013] By adopting the above technical solution, the shielding and anti-interference performance of the micro three-axis sensor body is improved.

[0014] Optionally, the outer shell of the micro three-axis sensor body is made of titanium alloy.

[0015] The adoption of the above technical solution is helpful to reduce the weight of the miniature three-axis sensor body.

[0016] Optionally, a mounting hole is formed on a side of the protective plug facing the connector, and a diameter of the mounting hole is larger than a diameter of the connector.

[0017] By adopting the above technical solution, the protective plug sleeve is advantageously arranged on the outside of the connector, thereby further improving the moisture-proof effect.

[0018] Optionally, the protective shell is made of metal.

[0019] By adopting the above technical solution, the strength and toughness of the protective shell are improved, and the protective effect of the micro three-axis sensor body is further improved.

[0020] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0021] The technical solution of the present application firstly engages two protective shells at the upper and lower ends of the micro three-axis sensor body, and then the two fixing plates are spliced ​​together. Then, the two protective shells are locked by the cooperation of the connecting plate and the screw. After that, the protective plug is inserted into the groove between the two fixing plates until the protective plug is sleeved on the outside of the connector. It can play a good moisture-proof effect in combination with the moisture-proof cotton. In addition, the cooperation of the above structure can also effectively protect the shell of the micro three-axis sensor body, which is convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0023] Figure 1 This is a schematic diagram of the overall structure of a miniature three-axis sensor of the utility model;

[0024] Figure 2 It is a structural schematic diagram of a micro three-axis sensor body of a micro three-axis sensor of the utility model;

[0025] Figure 3 The utility model is a schematic structural diagram of a protective plug of a miniature three-axis sensor.

[0026] In the figure: 1. connecting plate; 2. screw; 3. protective shell; 4. rubber pad; 5. fixing plate; 6. notch; 7. connector; 8. protective plug; 9. micro three-axis sensor body; 10. moisture-proof cotton. DETAILED DESCRIPTION

[0027] See also Figure 1-3 The utility model provides a technical solution: a miniature three-axis sensor, including a screw 2 and a miniature three-axis sensor body 9, the upper and lower sides of the miniature three-axis sensor body 9 are snap-connected with protective shells 3, the inner walls of the two protective shells 3 are glued and fixed with rubber pads 4, the two sides of the two protective shells 3 are fixedly connected with connecting plates 1, the two connecting plates 1 are threadedly connected through the screw 2, the front wall of the miniature three-axis sensor body 9 is provided with a connector 7, the front walls of the two protective shells 3 are fixedly connected with fixing plates 5, the opposite sides of the two fixing plates 5 are provided with slots 6, the insides of the two slots 6 are snap-connected with protective plugs 8, and the inner walls of the protective plugs 8 are glued and fixed with moisture-proof cotton 10.

[0028] In the technical solution of the utility model, if Figure 1 As shown, the cross section of the protective shell 3 is a concave structure, and the opening width of the protective shell 3 is adapted to the width of the micro three-axis sensor body 9, which is beneficial to improving the installation stability of the micro three-axis sensor body 9.

[0029] In the technical solution of the utility model, if Figure 1As shown, the diameter of the protective plug 8 is matched with the diameter of the circular hole formed by the two notches 6; this is beneficial to improving the firmness of the installation of the protective plug 8 and preventing it from falling off.

[0030] In the technical solution of the utility model, if Figure 1 As shown, the connector 7 is designed as a four-core structure, which improves the shielding and anti-interference performance of the miniature three-axis sensor body 9.

[0031] In the technical solution of the utility model, if Figure 2 As shown, the outer shell of the micro three-axis sensor body 9 is made of titanium alloy, which is beneficial to reducing the weight of the micro three-axis sensor body 9.

[0032] In the technical solution of the utility model, if Figure 3 As shown, a mounting hole is provided on the side of the protective plug 8 facing the connector 7, and the diameter of the mounting hole is larger than the diameter of the connector 7; this is conducive to the protective plug 8 being sleeved on the outside of the connector 7, further improving the moisture-proof effect.

[0033] In the technical solution of the utility model, if Figure 1 As shown, the protective shell 3 is made of metal material, which is beneficial to improving the strength and toughness of the protective shell 3 and further improving the protective effect of the micro three-axis sensor body 9.

[0034] When in use, firstly snap the two protective shells 3 into the upper and lower ends of the micro three-axis sensor body 9, and then splice the two fixing plates 5 together, and then lock the two protective shells 3 by the cooperation of the connecting plate 1 and the screw 2, and then insert the protective plug 8 into the slot 6 between the two fixing plates 5 until the protective plug 8 is sleeved on the outside of the connector 7, which can play a good moisture-proof effect in combination with the moisture-proof cotton 10, and the shell of the micro three-axis sensor body 9 can also be effectively protected through the cooperation of the above structure, which is convenient and practical.

[0035] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A miniature three-axis sensor, characterized in that: The invention comprises a screw (2) and a micro three-axis sensor body (9), wherein the upper and lower sides of the micro three-axis sensor body (9) are snap-connected with a protective shell (3), the inner walls of the two protective shells (3) are glued and fixed with a rubber pad (4), the two sides of the two protective shells (3) are fixedly connected with a connecting plate (1), the two connecting plates (1) are threadedly connected through a screw (2), the front wall of the micro three-axis sensor body (9) is provided with a connector (7), the front walls of the two protective shells (3) are fixedly connected with a fixing plate (5), the opposite sides of the two fixing plates (5) are provided with a notch (6), the insides of the two notches (6) are snap-connected with a protective plug (8), and the inner wall of the protective plug (8) is glued and fixed with a moisture-proof cotton (10).

2. A miniature three-axis sensor according to claim 1, characterized in that: The cross section of the protective shell (3) is a concave structure, and the opening width of the protective shell (3) is adapted to the width of the micro three-axis sensor body (9).

3. A miniature three-axis sensor according to claim 1, characterized in that: The diameter of the protective plug (8) matches the diameter of the circular hole formed by the two notches (6).

4. A miniature three-axis sensor according to claim 1, characterized in that: The connector (7) is designed as a four-core structure.

5. The micro three-axis sensor according to claim 1, characterized in that: The outer shell of the micro three-axis sensor body (9) is made of titanium alloy.

6. A miniature three-axis sensor according to claim 1, characterized in that: A mounting hole is provided on a side of the protective plug (8) facing the connector (7), and the diameter of the mounting hole is larger than the diameter of the connector (7).

7. The micro three-axis sensor according to claim 1, characterized in that: The protective shell (3) is made of metal material.

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