Internal packaging structure of pressure sensor

Abstract

The utility model discloses an internal packaging structure of a pressure sensor, relates to the technical field of pressure sensors, and aims to solve the technical problem that the protection effect on a pressure diaphragm is affected due to the fact that resin and the pressure diaphragm are easy to separate due to different materials when the pressure diaphragm is packaged by the resin in the actual use of the current pressure sensor. Comprising a mounting shell and a protective cover mounted at the top of the mounting shell, a detection assembly is fixedly mounted at the bottom in the mounting shell, the detection assembly comprises a bracket, a mounting groove is formed in the top end of the bracket, a groove is formed in the bottom of the mounting groove, and a pressure diaphragm is arranged in the groove; according to the utility model, the packaging structure is stable, and the packaging effect on the pressure diaphragm can be maintained, so that the problem that the pressure diaphragm is separated due to different materials is avoided, the packaging stability is ensured, and the protection effect on the pressure diaphragm is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure sensors, and more specifically, to an internal packaging structure of a pressure sensor. Background Technique

[0002] A pressure sensor is a device or apparatus that can sense a pressure signal and convert the pressure signal into an available output electrical signal according to a certain rule. A pressure sensor usually consists of a pressure-sensitive element, a device that converts the force or motion generated by the pressure-sensitive element into electrical parameters, and a device that displays or records the electrical parameters. According to different types of measured pressures, pressure sensors can be divided into gauge pressure sensors, differential pressure sensors, and absolute pressure sensors.

[0003] However, for the pressure sensors in the existing technology, resin and other materials are usually used to encapsulate the pressure diaphragm inside. When using resin to encapsulate the pressure diaphragm in actual use, the resin and the pressure diaphragm are likely to separate due to different materials, which affects the protection effect on the pressure diaphragm. In view of this, we propose an internal packaging structure of a pressure sensor. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the existing technology, meet the actual needs, and provide an internal packaging structure of a pressure sensor to solve the technical problem that when using resin to encapsulate the pressure diaphragm in the current pressure sensor, the resin and the pressure diaphragm are likely to separate due to different materials in actual use, which affects the protection effect on the pressure diaphragm.

[0005] To solve the above technical problem, the utility model provides the following technical solution: an internal packaging structure of a pressure sensor, including an installation shell and a protective cover installed on the top of the installation shell;

[0006] A detection component is fixedly installed at the bottom inside the installation shell. The detection component includes a support base. An installation groove is opened at the top end of the support base, and a groove is opened at the bottom of the installation groove. A pressure diaphragm is arranged in the groove. A resin encapsulation layer installed in the installation groove is arranged at the top end of the pressure diaphragm, and limiting blocks are constructed on four side surfaces of the resin encapsulation layer;

[0007] Limiting grooves are opened on four side surfaces inside the installation groove, and the limiting blocks are inserted into the limiting grooves.

[0008] The utility model uses a resin encapsulation layer with four limiting blocks to encapsulate and protect the pressure diaphragm arranged in the groove on the support base. During protection, the four limiting blocks limit the resin encapsulation layer to maintain the encapsulation effect on the pressure diaphragm, thereby avoiding the problem of separation due to different materials, ensuring the stability of the encapsulation, and improving the protection effect on the pressure diaphragm.

[0009] Preferably, a plurality of positioning posts are equidistantly arranged at the four corners of the top end of the pressure diaphragm, and a plurality of positioning grooves are equidistantly opened at the four corners of the bottom end of the resin encapsulation layer, and the positioning posts are inserted into the corresponding positioning grooves.

[0010] Preferably, two through grooves communicating with the grooves are symmetrically opened at the bottom end of the support base, and two pin rows are symmetrically arranged at the bottom end of the pressure diaphragm, and the pin rows pass through the through grooves.

[0011] Preferably, an interface is fixedly installed at the bottom end of the installation shell, and a connector is inserted into the interface.

[0012] Preferably, a hanging key is arranged on one side of the outer edge surface of the interface, and a hanging ear is arranged on one side of the outer edge surface of the connector, and the hanging ear is hung on the hanging key.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. The resin encapsulation layer provided with four limiting blocks in the present utility model encapsulates and protects the pressure diaphragm arranged in the groove on the support base. During protection, the four limiting blocks limit the resin encapsulation layer to maintain the encapsulation effect on the pressure diaphragm, thereby avoiding the problem of separation due to different materials, ensuring the stability of encapsulation, and improving the protection effect on the pressure diaphragm.

[0015] 2. The present utility model also connects the resin encapsulation layer provided with a plurality of positioning grooves through a plurality of positioning posts arranged on the pressure diaphragm. After the connection is completed, combined with the connection between the four limiting blocks and the four limiting grooves, the encapsulation effect of the resin encapsulation layer on the pressure diaphragm is ensured, and the protection effect on the pressure diaphragm is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic diagram of the internal structure of the present utility model in a disassembled state;

[0018] Figure 3 is a schematic diagram of a partial structure of the present utility model in a sectional view state;

[0019] Figure 4 is a schematic diagram of the disassembly of the detection component of the present utility model in a top view state;

[0020] Figure 5 is a schematic diagram of the disassembly of the detection component of the present utility model in a bottom view state.

[0021] Description of the reference numerals in the drawings:

[0022] 1. Mounting shell; 2. Protective cover; 3. Detection component; 301. Support; 302. Pressure diaphragm; 303. Resin encapsulation layer; 304. Limit groove; 305. Limit block; 306. Positioning post; 307. Positioning groove; 308. Through groove; 309. Pin row; 4. Interface; 5. Connector; 6. Hanging key; 7. Hanging ear. Detailed implementation mode

[0023] As Figure 1 shown, a pressure sensor internal encapsulation structure involved in the present utility model includes a mounting shell 1 and a protective cover 2 mounted on the top of the mounting shell 1;

[0024] As Figure 3 、 Figure 4 、shown, in an embodiment of the present utility model, to ensure the stability of encapsulation and improve the protection effect on the pressure diaphragm 302, a detection component 3 is fixedly installed at the bottom inside the mounting shell 1. The detection component 3 includes a support 301. An installation groove is opened at the top end of the support 301, and a groove is opened at the bottom of the installation groove. A pressure diaphragm 302 is arranged in the groove. A resin encapsulation layer 303 installed in the installation groove is provided at the top end of the pressure diaphragm 302. Limit blocks 305 are constructed on four side surfaces of the resin encapsulation layer 303. Limit grooves 304 are opened on four side surfaces inside the installation groove. The limit blocks 305 are inserted into the limit grooves 304. The resin encapsulation layer 303 provided with four limit blocks 305 is used to encapsulate and protect the pressure diaphragm 302 arranged in the groove on the support 301. During protection, the four limit blocks 305 limit the resin encapsulation layer 303 to maintain the encapsulation effect on the pressure diaphragm 302, thereby avoiding the problem of separation due to different materials, ensuring the stability of encapsulation, and improving the protection effect on the pressure diaphragm 302.

[0025] As Figure 3 、 Figure 4 、 Figure 5As shown, in the embodiment of the present utility model, in order to further improve the protection effect on the pressure diaphragm 302, a plurality of positioning posts 306 are equidistantly arranged at the four corners of the top end of the pressure diaphragm 302, and a plurality of positioning grooves 307 are equidistantly opened at the four corners of the bottom end of the resin encapsulation layer 303. The positioning posts 306 are inserted into the corresponding positioning grooves 307. Two through grooves 308 communicating with the grooves are symmetrically opened at the bottom end of the support base 301, and two pin rows 309 are symmetrically formed at the bottom end of the pressure diaphragm 302. The pin rows 309 pass through the through grooves 308. The pressure diaphragm 302 is connected to the resin encapsulation layer 303 provided with a plurality of positioning grooves 307 through a plurality of positioning posts 306 formed thereon. After the connection is completed, the connection between the four limiting blocks 305 and the four limiting grooves 304 is coordinated to ensure the encapsulation effect of the resin encapsulation layer 303 on the pressure diaphragm 302, and further improve the protection effect on the pressure diaphragm 302.

[0026] As Figure 1 , Figure 2 shown, in the embodiment of the present utility model, in order to avoid the problem of the joint 5 slipping off, an interface 4 is fixedly installed at the bottom end of the installation shell 1, and a joint 5 is inserted into the interface 4. A hanging key 6 is formed on one side of the outer edge surface of the interface 4, and a hanging ear 7 is formed on one side of the outer edge surface of the joint 5. The hanging ear 7 is hung on the hanging key 6. When connected to an external device, the joint 5 provided with the hanging ear 7 can be inserted into the interface 4, and the hanging ear 7 is hung and connected to the hanging key 6, so as to avoid the problem of the joint 5 slipping off.

[0027] Working principle: This embodiment provides an internal encapsulation structure of a pressure sensor. During use, the pressure diaphragm 302 is connected to the resin encapsulation layer 303 provided with a plurality of positioning grooves 307 through a plurality of positioning posts 306 formed thereon, and then the four limiting blocks 305 are connected to the four limiting grooves 304 on the support base 301 to maintain the encapsulation effect on the pressure diaphragm 302, thereby avoiding the problem of separation due to different materials, ensuring the stability of the encapsulation, improving the protection effect on the pressure diaphragm 302, and further protecting the detection component 3 through the protective cover 2 provided on the installation shell 1. When connected to an external device, the joint 5 provided with the hanging ear 7 can be inserted into the interface 4, and the hanging ear 7 is hung and connected to the hanging key 6, which is convenient to use.

[0028] The embodiments disclosed in the present utility model are preferred embodiments, but are not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present utility model based on the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of the present utility model, they are within the protection scope of the present utility model.

Claims

1. An internal packaging structure of a pressure sensor, characterized in that, It includes an installation shell (1) and a protective cover (2) installed on the top of the installation shell (1); A detection component (3) is fixedly installed at the inner bottom of the installation shell (1). The detection component (3) includes a support base (301). An installation groove is formed at the top end of the support base (301), and a groove is formed at the bottom of the installation groove. A pressure diaphragm (302) is arranged in the groove. A resin encapsulation layer (303) installed in the installation groove is arranged at the top end of the pressure diaphragm (302). Limiting blocks (305) are constructed on the four side surfaces of the resin encapsulation layer (303); Limiting grooves (304) are formed on the four side surfaces in the installation groove, and the limiting blocks (305) are inserted into the limiting grooves (304).

2. The internal encapsulation structure of the pressure sensor according to claim 1, wherein A plurality of positioning columns (306) are evenly constructed at the four corners of the top end of the pressure diaphragm (302), and a plurality of positioning grooves (307) are evenly formed at the four corners of the bottom end of the resin encapsulation layer (303). The positioning columns (306) are inserted into the corresponding positioning grooves (307).

3. The internal encapsulation structure of the pressure sensor according to claim 1, characterized in that, Two through grooves (308) communicating with the groove are symmetrically formed at the bottom end of the support base (301), and two pin rows (309) are symmetrically constructed at the bottom end of the pressure diaphragm (302). The pin rows (309) pass through the through grooves (308).

4. The internal encapsulation structure of the pressure sensor according to claim 1, characterized in that, An interface (4) is fixedly installed at the bottom end of the installation shell (1), and a connector (5) is inserted into the interface (4).

5. The internal encapsulation structure of the pressure sensor according to claim 4, characterized in that, A hanging key (6) is constructed on one side of the outer edge surface of the interface (4), and a hanging ear (7) is constructed on one side of the outer edge surface of the connector (5). The hanging ear (7) is hung on the hanging key (6).

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