Ceramic pressure sensor with protection structure

Abstract

The utility model discloses a ceramic pressure sensor with a protection structure, and relates to the field of pressure sensors. The sensor comprises the sensor, the main body is arranged on the outer side of the sensor, the deformation mechanism is arranged on the outer side of the main body, and the deformation mechanism is formed by four wedge-shaped deformation sheets, so that the sensor can adapt to equipment grooves with different diameters, and the universality of the sensor is enhanced; the deformation pieces are made of polyethylene materials, have good elasticity and restoring force, can be repeatedly used and are stable, bending grooves are formed in the deformation pieces, flexibility is improved, deformation is uniform, materials are prevented from being damaged, the corners of the bottom are arranged in an arc-shaped chamfer mode, stress concentration is reduced, structural strength is enhanced, the deformation pieces are heated through an air heater, and the deformation pieces are prone to deformation. The inner wall of the installation groove is tightly attached, installation stability and sealing performance are improved, meanwhile, the installation process is simplified, and cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of pressure sensors, in particular to a ceramic pressure sensor with a protective structure. Background Art

[0002] The ceramic pressure sensor is a new type of strain sensor. Its working principle is to utilize the piezoresistive effect and force-sensitive effect of thick film resistors. When external pressure acts directly on the front surface of the ceramic diaphragm, the diaphragm will deform slightly, and then the piezoresistive characteristics of the strain resistor will convert the pressure change into a change in resistance value. Through the Wheatstone bridge, this resistance change is further converted into a change in voltage signal. Simply put, when there is no pressure, the bridge is balanced and the output voltage is zero; once subjected to pressure, the bridge resistance changes, resulting in imbalance, and then outputs a voltage signal that is precisely linearly related to the pressure.

[0003] Existing ceramic pressure sensors with protective structures are mainly installed in the installation slots of various equipment or inside equipment slots. However, due to the different diameters of the equipment slots, they need to be adapted through matching mounting parts during installation to be effectively fixed. This method is relatively cumbersome. For example, each time the equipment is replaced or the installation position is adjusted, it is necessary to reselect and install the matching mounting parts, which not only increases the complexity of the installation, but may also affect the working performance of the sensor due to improper adaptation. In addition, this installation method may also increase the difficulty of maintaining and replacing sensors and reduce work efficiency. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a ceramic pressure sensor with a protective structure to solve the technical problems of complex installation and difficult adaptation caused by different equipment slot diameters and possible impact on the working performance of the sensor.

[0005] To achieve the above object, the utility model provides the following technical solutions: a ceramic pressure sensor with a protective structure, comprising a sensor, a main body is arranged on the outside of the sensor, a deformation mechanism is arranged on the outside of the main body, the deformation mechanism comprises a first deformation piece, a second deformation piece, a third deformation piece and a fourth deformation piece, the first deformation piece, the second deformation piece, the third deformation piece and the fourth deformation piece are all arranged in a wedge-shaped structure;

[0006] The inner walls of the first deformable piece, the second deformable piece, the third deformable piece and the fourth deformable piece are provided with bending grooves, and the bending grooves facilitate the deformation of the first deformable piece, the second deformable piece, the third deformable piece and the fourth deformable piece;

[0007] Arc chamfers are arranged at the bottom corners of the first deformable piece, the second deformable piece, the third deformable piece and the fourth deformable piece.

[0008] By adopting the above technical scheme, through the wedge-shaped structure setting of the first deformable piece, the second deformable piece, the third deformable piece and the fourth deformable piece of the deformation mechanism, it can effectively deform when the sensor is impacted by external force, absorb and disperse the impact force, thereby protecting the internal ceramic pressure sensor from damage. The setting of the bending groove further enhances the flexibility of the deformable piece, and the arc chamfer reduces stress concentration and improves the durability of the structure.

[0009] Furthermore, the first deformable sheet, the second deformable sheet, the third deformable sheet and the fourth deformable sheet are made of polyethylene, and the first deformable sheet, the second deformable sheet, the third deformable sheet and the fourth deformable sheet can be deformed by a hot air blower.

[0010] By adopting the above technical solution, the deformable sheet is made of polyethylene material, which has good flexibility and impact resistance, and can be deformed and adjusted by a hot air blower. This setting enables the deformable sheet to flexibly adjust its shape according to actual needs to adapt to different working environments and impact intensities, thereby improving the adaptability and service life of the sensor.

[0011] Furthermore, a wiring surface is provided at the bottom of the main body, and a protective mechanism is provided below the bottom of the wiring surface.

[0012] By adopting the above technical solution, the wiring surface provides the sensor with a connection interface with the external circuit, which facilitates data transmission and circuit connection, while the protective mechanism provides additional protection for the wiring surface and circuit connection part to prevent damage or failure caused by external environmental factors.

[0013] Furthermore, the protection mechanism includes a printing groove, a plurality of protrusions are arranged on the inner side of the printing groove, and a two-dimensional code is printed between the plurality of protrusions.

[0014] By adopting the above technical solution, the printing groove provides a dedicated printing space for the QR code, and the protrusion plays a role in protecting and fixing the QR code. This setting not only ensures the clarity and readability of the QR code information, but also enhances the anti-counterfeiting and traceability of the information, and facilitates the management and maintenance of the sensor.

[0015] Furthermore, a welding point is provided on one side of the printing groove, and a plurality of the welding points are provided, and the plurality of the welding points are welded to the external circuit lines.

[0016] By adopting the above technical solution, multiple welding points provide stable circuit connection points, ensuring the stable connection between the sensor and the external circuit. This setting reduces the risk of signal interference or data loss caused by loose wiring or poor contact, and improves the working stability and reliability of the sensor.

[0017] Furthermore, a pressure-bearing surface is provided on the top of the main body, and the pressure-bearing surface is used for sensing pressure.

[0018] By adopting the above technical solution, the pressure surface is the part of the sensor that directly senses pressure changes, and its setting directly affects the sensitivity and accuracy of the sensor. The optimized pressure surface can more accurately sense and convert pressure signals, thereby improving the overall performance of the sensor.

[0019] In summary, the utility model mainly has the following beneficial effects:

[0020] 1. The utility model sets a deformation mechanism, wherein the deformation mechanism is composed of four wedge-shaped deformation pieces, which can adapt to equipment slots of different diameters and enhance the versatility of the sensor. These deformation pieces are made of polyethylene, have good elasticity and resilience, are reusable and stable, and are provided with bending grooves to improve flexibility, make the deformation more uniform, and prevent material damage. The bottom corners are set with arc chamfers to reduce stress concentration and enhance structural strength. The deformation piece is easier to deform through heating by a hot air blower, and fits tightly to the inner wall of the installation slot, thereby improving the stability and sealing of the installation, simplifying the installation process, and reducing costs.

[0021] 2. The utility model sets up a protective mechanism, which provides additional protection for the sensor, enhances durability, and effectively prevents external impact and scratches, especially protecting the QR code from wear. The printing groove provides a dedicated information identification area, which is convenient for recording and tracking key information of the sensor and simplifies the information management process. At the same time, the convex block setting not only protects the QR code information in the printing groove to ensure its clarity and readability, but also enhances the structural strength of the protective mechanism, further improving the durability of the sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0023] Figure 2 It is a rear-view stereoscopic structural schematic diagram of the utility model;

[0024] Figure 3 It is a side view cross-sectional three-dimensional structure schematic diagram of the utility model;

[0025] Figure 4 For this utility model Figure 3 Schematic diagram of the structure enlarged at point A in the middle.

[0026] In the figure: 1. sensor; 101. main body; 102. pressure surface; 103. wiring surface; 104. welding point; 2. protection mechanism; 201. printing groove; 202. bump; 3. deformation mechanism; 301. first deformation piece; 302. second deformation piece; 303. third deformation piece; 304. fourth deformation piece; 305. arc chamfer; 306. bending groove. DETAILED DESCRIPTION

[0027] 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. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0028] The following describes an embodiment of the utility model based on its overall structure.

[0029] Embodiment 1:

[0030] A ceramic pressure sensor with a protective structure, such as Figure 1-Figure 4 As shown, the sensor 1 includes a main body 101 disposed on the outer side of the sensor 1. The main body 101 is disposed on the outer side of the main body 101. The deformation mechanism 3 includes a first deformation piece 301, a second deformation piece 302, a third deformation piece 303 and a fourth deformation piece 304. The first deformation piece 301, the second deformation piece 302, the third deformation piece 303 and the fourth deformation piece 304 are all arranged in a wedge-shaped structure; the inner walls of the first deformation piece 301, the second deformation piece 302, the third deformation piece 303 and the fourth deformation piece 304 are provided with a bending groove 306, and the bending groove 306 facilitates the first deformation piece 301, the second deformation piece 302 , the third deformable piece 303 and the fourth deformable piece 304 are deformed; arc chamfers 305 are arranged at the bottom corners of the first deformable piece 301, the second deformable piece 302, the third deformable piece 303 and the fourth deformable piece 304, and the main body 101 provides stable support and protection for the sensor to ensure the stability and safety of the sensor in the working environment. Moreover, the deformation mechanism 3 can be deformed when subjected to external force through the wedge-shaped structure of the first deformable piece 301, the second deformable piece 302, the third deformable piece 303 and the fourth deformable piece 304, thereby absorbing and dispersing the impact force and protecting the internal sensor from damage.

[0031] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 The first deformable sheet 301, the second deformable sheet 302, the third deformable sheet 303 and the fourth deformable sheet 304 are made of polyethylene. The first deformable sheet 301, the second deformable sheet 302, the third deformable sheet 303 and the fourth deformable sheet 304 can be deformed by a hot air blower. The setting of the bending groove 306 enables the deformable sheet to bend and deform more easily when subjected to pressure, thereby more effectively absorbing impact force, and the arc chamfer 305 can reduce the stress concentration of the deformable sheet during the deformation process, prevent the deformable sheet from breaking or breaking when bending, and enhance the durability of the deformable sheet.

[0032] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 A wiring surface 103 is provided at the bottom of the main body 101, and a protective mechanism 2 is provided below the bottom of the wiring surface 103. The wiring surface 103 provides a convenient and stable interface for the circuit connection of the sensor, which is convenient for connection with an external circuit.

[0033] Embodiment 2:

[0034] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 The protective mechanism 2 includes a printing groove 201, a plurality of protrusions 202 are arranged on the inner side of the printing groove 201, and a two-dimensional code is printed between the plurality of protrusions 202. The protective mechanism 2 provides protection and fixation for the two-dimensional code through the arrangement of the printing groove 201 and the protrusions 202, thereby preventing the two-dimensional code from being damaged due to friction, pollution, etc., and ensuring the readability and long-term preservation of the information.

[0035] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 A welding point 104 is arranged on one side of the printed groove 201, and a plurality of welding points 104 are arranged. The plurality of welding points 104 are welded to the external circuit line. The welding point 104 provides a reliable welding position for the circuit connection of the sensor, ensuring the stability and conductivity of the circuit connection. Moreover, the arrangement of the plurality of welding points 104 can disperse the current, reduce the risk of single-point overheating, and improve the safety of the circuit connection.

[0036] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 A pressure surface 102 is provided on the top of the main body 101. The pressure surface 102 is used to sense pressure. The pressure surface 102 is the part of the sensor that directly senses pressure. Its setting directly affects the sensitivity and accuracy of the sensor. Moreover, by optimizing the setting and material selection of the pressure surface 102, the response speed and measurement accuracy of the sensor to pressure can be improved, thereby improving the overall performance of the sensor.

[0037] The implementation principle of the utility model is as follows: first, the first deformation piece 301, the second deformation piece 302, the third deformation piece 303 and the fourth deformation piece 304 of the deformation mechanism 3 need to be correctly installed on the outside of the main body 101 according to the setting requirements, and then, the multiple deformation pieces are freely deformed by a hot air blower, and at the same time, the bending groove 306 and the arc chamfer 305 are protected from damage. Subsequently, the welding point 104 below the wiring surface 103 is found, and the external circuit line to be connected is prepared, and the external circuit line is welded to the welding point 104 to ensure that the connection is firm and reliable;

[0038] Afterwards, the sensor 1 is placed inside the installation groove, and can be effectively supported by the first deformable piece 301 , the second deformable piece 302 , the third deformable piece 303 and the fourth deformable piece 304 , thereby ensuring efficient installation.

[0039] Parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art, and will not be described in detail here.

[0040] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A ceramic pressure sensor with a protective structure, characterized in that: The invention comprises a sensor (1), wherein a main body (101) is arranged on the outside of the sensor (1); a deformation mechanism (3) is arranged on the outside of the main body (101); the deformation mechanism (3) comprises a first deformation piece (301), a second deformation piece (302), a third deformation piece (303) and a fourth deformation piece (304); the first deformation piece (301), the second deformation piece (302), the third deformation piece (303) and the fourth deformation piece (304) are all arranged in a wedge-shaped structure; The inner walls of the first deformable piece (301), the second deformable piece (302), the third deformable piece (303) and the fourth deformable piece (304) are provided with bending grooves (306), and the bending grooves (306) facilitate the deformation of the first deformable piece (301), the second deformable piece (302), the third deformable piece (303) and the fourth deformable piece (304); Arc chamfers (305) are provided at the bottom corners of the first deformable piece (301), the second deformable piece (302), the third deformable piece (303) and the fourth deformable piece (304).

2. The ceramic pressure sensor with a protective structure according to claim 1, characterized in that: The first deformable sheet (301), the second deformable sheet (302), the third deformable sheet (303) and the fourth deformable sheet (304) are made of polyethylene, and the first deformable sheet (301), the second deformable sheet (302), the third deformable sheet (303) and the fourth deformable sheet (304) can be deformed by a hot air blower.

3. The ceramic pressure sensor with a protective structure according to claim 1, characterized in that: A wiring surface (103) is provided at the bottom of the main body (101), and a protection mechanism (2) is provided below the bottom of the wiring surface (103).

4. The ceramic pressure sensor with a protective structure according to claim 3, characterized in that: The protection mechanism (2) comprises a printing groove (201), a plurality of protrusions (202) are arranged on the inner side of the printing groove (201), and two-dimensional codes are printed between the plurality of protrusions (202).

5. The ceramic pressure sensor with a protective structure according to claim 4, characterized in that: A welding point (104) is provided on one side of the printing groove (201), and a plurality of the welding points (104) are provided, and the plurality of welding points (104) are welded to external circuit lines.

6. The ceramic pressure sensor with a protective structure according to claim 1, characterized in that: The top of the main body (101) is provided with a pressure-bearing surface (102), and the pressure-bearing surface (102) is used for sensing pressure.

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