A pressure-resistant pedometer sensor

Abstract

The utility model relates to sensor technical field, especially step counting sensor with strong pressure resistance, including sensor component, the bottom shell of sensor component bottom surface and the shell of surrounding in sensor component outer periphery and connecting in bottom shell, the outer periphery of bottom shell protruding has the protection portion, the protection portion surrounds and forms the connecting groove for connecting sensor component, the connecting cavity that the outer shell is connected to the outer periphery of protection portion is opened to bottom shell, the inner wall of shell protrudes and is provided with the reinforcing protruding piece along the extension direction of protection portion to connecting groove, the reinforcing protruding piece is connected to connecting cavity, and connecting cavity and reinforcing protruding piece surround protection portion. The utility model aims at making sensor simple structure, and the compression resistance is strong.

Description

Technical Field

[0001] This utility model relates to the field of sensor technology, and in particular to a step counting sensor with strong pressure resistance. Background Technology

[0002] Current pedometer sensors often face harsh environments such as mechanical shock and compression in outdoor sports, industrial wearables, etc., leading to damage to internal components or measurement inaccuracies. Traditional designs use a housing to mount the PCB substrate and encapsulate it with a simple potting structure. This structure has insufficient pressure resistance, especially at pressures exceeding 50 N / cm. 2 Deformation is easily caused under pressure, leading to cantilever breakage or solder joint detachment in MEMS sensors, significantly increasing the failure rate. Furthermore, conventional silicone or plastic encapsulation struggles to balance sealing and heat dissipation requirements; prolonged exposure to humid and hot environments allows moisture penetration, which can corrode the circuitry, affecting sensor accuracy and lifespan.

[0003] Existing improvement solutions, such as metal shielding covers or spring shock absorption structures, can improve mechanical strength, but they have problems such as excessive size, increased weight, or signal shielding, making it difficult to meet the needs of miniaturized and low-power wearable devices. Utility Model Content

[0004] The main purpose of this invention is to provide a step counting sensor with strong pressure resistance, which aims to make the sensor structure simple and have strong pressure resistance.

[0005] To achieve the above objectives, this utility model proposes a pedometer sensor with strong pressure resistance, comprising a sensor assembly, a bottom shell disposed on the bottom surface of the sensor assembly, and a shell surrounding the outer periphery of the sensor assembly and connected to the bottom shell. The outer periphery of the bottom shell is provided with a protective part, and the protective part is enclosed to form a connecting groove for connecting the sensor assembly.

[0006] The outer shell has a connecting cavity that connects to the outer periphery of the protective part facing the bottom shell. The inner wall of the outer shell has a reinforcing protrusion that protrudes towards the connecting groove along the extension direction of the protective part. The reinforcing protrusion is connected to the connecting cavity, and the connecting cavity and the reinforcing protrusion surround the protective part.

[0007] In one embodiment of this application, the reinforcing protrusion is connected to the connecting groove, and a plurality of clearance grooves connected to the connecting groove are provided relative to the connecting groove array.

[0008] In one embodiment of this application, the reinforcing protrusion is symmetrically provided with reinforcing members along the central axis, and a plurality of the relief grooves are evenly distributed on both sides of the reinforcing members and are symmetrically arranged.

[0009] In one embodiment of this application, the sensor assembly is connected to a charging unit, which passes through the housing and has a connection end relative to the outer periphery of the housing.

[0010] In one embodiment of this application, the outer periphery of the sensor assembly is provided with a reinforcing part relative to the charging unit, and the inner wall of the housing is provided with a clearance groove connected to the clearance groove in the vertical direction, and the reinforcing part is connected to the clearance groove.

[0011] In one embodiment of this application, the end face of the housing facing the sensor assembly is provided with positioning posts for connecting to the sensor assembly, and at least two positioning posts are provided symmetrically along the central axis.

[0012] In one embodiment of this application, the end face of the housing facing the sensor assembly is provided with a fixing hole for fixing the sensor assembly. At least two fixing holes are provided symmetrically along the central axis, and each fixing hole is connected to the sensor assembly and connected by a bolt.

[0013] By adopting the above technical solution, this utility model has the following advantages:

[0014] From a structural and functional perspective, pedometer sensors can be divided into sensor components, a bottom shell, and an outer shell. From the working principle of pedometer sensors, the sensor component generally includes the sensor body and a PCB board. The bottom shell and the outer shell can be assembled together. In order to better protect the fragile sensor component, a protective part is provided on the outer periphery of the bottom shell. The protective part can form a connecting groove on the bottom shell. The connecting groove can be used to limit the installation position of the sensor body and prevent it from shifting. The protective part can also provide initial protection for the sensor component.

[0015] To further enhance the protective effect and give the entire housing, consisting of the bottom shell and the outer shell, strong pressure resistance, a connecting cavity is provided on the outer shell facing the bottom shell. The outer shell covers the bottom shell through the connecting cavity, and the outer side of the protective part is connected to the inner wall of the connecting cavity to ensure the sealing of the connection. The connecting cavity surrounds the top of the protective part, and the inner wall of the outer shell is provided with a reinforcing protrusion facing the connecting groove. The reinforcing protrusion is connected to the connecting groove and to one side of the protective part. The connecting cavity can serve as a stress isolation. Through the interaction of the outer shell, the connecting cavity, and the reinforcing protrusion, the pressure resistance of the entire housing can be effectively improved without the need for a complex structure, making the pedometer sensor easy and flexible to use. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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 the structures shown in these drawings without creative effort.

[0017] Figure 1This is a schematic diagram of the pedometer sensor with high pressure resistance according to this utility model;

[0018] Figure 2 This is a cross-sectional view of the pedometer sensor with high pressure resistance according to this utility model;

[0019] Figure 3 This is an exploded view of the pedometer sensor with high pressure resistance of this utility model.

[0020] Figure 4 This is a schematic diagram of the housing of the pedometer sensor with high pressure resistance according to this utility model.

[0021] Explanation of icon numbers:

[0022] 1. Sensor assembly; 11. Reinforcing part; 2. Charging unit; 3. Bottom shell; 31. Protective part; 4. Outer shell; 41. Positioning post; 42. Fixing hole; 43. Clearance groove; 44. Connecting cavity; 45. Reinforcing protrusion; 46. Clearance groove; 47. Reinforcing member.

[0023] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0025] Reference Figures 1 to 4 To achieve the above objectives, this utility model proposes a step counting sensor with strong pressure resistance, including a sensor assembly 1, a bottom shell 3 disposed on the bottom surface of the sensor assembly 1, and a shell 4 surrounding the outer periphery of the sensor assembly 1 and connected to the bottom shell 3. A protective part 31 is provided on the outer periphery of the bottom shell 3, and the protective part 31 is formed to form a connecting groove for connecting the sensor assembly 1.

[0026] The outer shell 4 has a connecting cavity 44 that connects to the outer periphery of the protective part 31 on the bottom shell 3. The inner wall of the outer shell 4 has a reinforcing protrusion 45 that protrudes towards the connecting groove along the extension direction of the protective part 31. The reinforcing protrusion 45 is connected to the connecting cavity 44. The connecting cavity 44 and the reinforcing protrusion 45 surround the protective part 31.

[0027] The pedometer sensor can be divided into sensor assembly 1, bottom shell 3 and outer shell 4 in terms of structure and function. From the working principle of the pedometer sensor, sensor assembly 1 generally includes sensor body and PCB board. Bottom shell 3 and outer shell 4 can be assembled together. In order to better protect the fragile sensor assembly 1, a protective part 31 is provided on the outer periphery of bottom shell 3. The protective part 31 can form a connecting groove on bottom shell 3. The connecting groove can be used to limit the installation position of sensor body and prevent it from shifting. The protective part 31 can also provide initial protection for sensor assembly 1.

[0028] To further enhance the protective effect and give the entire housing consisting of the bottom shell 3 and the outer shell 4 strong pressure resistance, the outer shell 4 is provided with a connecting cavity 44 facing the bottom shell 3. The outer shell 4 covers the bottom shell 3 through the connecting cavity 44. The outer side of the protective part 31 is connected to the inner wall of the connecting cavity 44, which can ensure the sealing of the connection. The connecting cavity 44 surrounds the top of the protective part 31, and the inner wall of the outer shell 4 is provided with a reinforcing protrusion 45 facing the connecting groove. The reinforcing protrusion 45 is connected to the connecting groove and to one side of the protective part 31. The connecting cavity 44 can serve as stress isolation. Through the interaction of the outer shell 4, the connecting cavity 44, and the reinforcing protrusion 45, the pressure resistance of the entire housing can be effectively improved without the need for a complex structure, making the pedometer sensor easy and flexible to use.

[0029] The outer periphery of the bottom shell 3 and the inner diameter of the connecting cavity 44 completely overlap, allowing the bottom shell 3 to be directly inserted into and fixed on the outer shell 4, ensuring the stability of the connection between the bottom shell 3 and the outer shell 4.

[0030] See also Figures 3 to 4 In one embodiment of this application, the reinforcing protrusion 45 is connected to the connecting groove, and a plurality of relief grooves 46 connected to the connecting groove are provided relative to the connecting groove array. The relief grooves 46 can be used to disperse stress to improve the overall pressure resistance of the housing, and the relief grooves 46 themselves can be used to facilitate heat dissipation of the sensor assembly 1, which can effectively improve the working performance of the entire step counting sensor.

[0031] See also Figures 3 to 4 In one embodiment of this application, the reinforcing protrusion 45 is symmetrically provided with reinforcing members 47 along the central axis, and a plurality of relief grooves 46 are evenly distributed on both sides of the reinforcing member 47 and are symmetrically arranged.

[0032] The reinforcing member 47 is located on the central axis of the reinforcing protrusion 45. The structures on both sides of the reinforcing member 47, including the reinforcing member 47, are symmetrically arranged along the central axis of the reinforcing protrusion 45. In particular, the width of the reinforcing member 47 can be greater or smaller than other parts of the reinforcing protrusion 45, which can effectively improve the compressive strength of the entire structure.

[0033] See also Figures 1 to 4In one embodiment of this application, the sensor assembly 1 is connected to a charging unit 2, which passes through the housing 4 and has a connection end relative to the outer periphery of the housing 4.

[0034] The charging unit 2 can charge the entire pedometer sensor without breaking the outer casing 4 and the bottom casing 3 through the connection end.

[0035] See also Figures 2 to 4 In one embodiment of this application, the outer periphery of the sensor assembly 1 is provided with a reinforcing part 11 relative to the charging unit 2, and the inner wall of the housing 4 is provided with a relief groove 43 connected to the relief groove 46 in the vertical direction, and the reinforcing part 11 is connected to the relief groove 43.

[0036] The reinforcement 11 ensures the stability of the charging unit 2 installation and effectively prevents damage to the charging unit 2 itself. The clearance groove 43 abuts against the reinforcement 11 and is connected to the clearance groove 46, which ensures the protection of the sensor assembly 1 by the entire housing structure.

[0037] See also Figure 4 In one embodiment of this application, the end face of the housing 4 facing the sensor assembly 1 is provided with a positioning post 41 for connecting to the sensor assembly 1, and at least two positioning posts 41 are provided symmetrically along the central axis.

[0038] At least two positioning posts 41 can ensure the stable fixation of the sensor assembly 1. The PCB board can be configured with matching holes corresponding to the positioning posts 41 to ensure the accuracy of the structure installation.

[0039] See also Figures 3 to 4 In one embodiment of this application, the end face of the housing 4 facing the sensor assembly 1 is provided with a fixing hole 42 for fixing the sensor assembly 1. At least two fixing holes 42 are provided symmetrically along the central axis. Each fixing hole 42 is connected to the sensor assembly 1 and connected by a bolt.

[0040] The fixing hole 42 can also be coaxially set with the mating hole on the PCB board. The PCB board and the sensor assembly 1 can be locked to the housing 4 by external bolts to ensure the stability of the entire structure.

[0041] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0042] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A pedometer sensor with high pressure resistance, characterized in that, It includes a sensor assembly, a bottom shell disposed on the bottom surface of the sensor assembly, and a shell surrounding the outer periphery of the sensor assembly and connected to the bottom shell. The outer periphery of the bottom shell is provided with a protective part, and the protective part is enclosed to form a connecting groove for connecting the sensor assembly. The outer shell has a connecting cavity that connects to the outer periphery of the protective part facing the bottom shell. The inner wall of the outer shell has a reinforcing protrusion that protrudes towards the connecting groove along the extension direction of the protective part. The reinforcing protrusion is connected to the connecting cavity, and the connecting cavity and the reinforcing protrusion surround the protective part.

2. The pedometer sensor with high pressure resistance according to claim 1, characterized in that, The reinforcing protrusion is connected to the connecting groove, and multiple clearance grooves connected to the connecting groove are provided relative to the connecting groove array.

3. A pedometer sensor with high pressure resistance according to claim 2, characterized in that, The reinforcing protrusion is symmetrically provided with reinforcing members along the central axis, and the plurality of relief grooves are evenly distributed on both sides of the reinforcing members and are symmetrically arranged.

4. A pedometer sensor with high pressure resistance according to claim 2, characterized in that, The sensor assembly is connected to a charging unit, which is disposed within the housing and has a connection end relative to the outer periphery of the housing.

5. A pedometer sensor with high pressure resistance according to claim 4, characterized in that, The outer periphery of the sensor assembly is provided with a reinforcing part relative to the charging unit, and the inner wall of the housing is provided with a clearance groove connected to the clearance groove along the vertical direction, and the reinforcing part is connected to the clearance groove.

6. A pedometer sensor with high pressure resistance according to claim 1, characterized in that, The end face of the housing facing the sensor assembly is provided with positioning posts for connecting to the sensor assembly, and at least two positioning posts are provided symmetrically along the central axis.

7. A pedometer sensor with high pressure resistance according to claim 1, characterized in that, The end face of the housing facing the sensor assembly has mounting holes for fixing the sensor assembly. There are at least two mounting holes symmetrically arranged along the central axis. Each mounting hole is connected to the sensor assembly and connected by a bolt.

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