Packaging sleeve shell and pressure sensor

Abstract

The utility model discloses a packaging sleeve shell and a pressure sensor, and the packaging sleeve shell comprises an inner shell assembly which is used for accommodating a pressure sensing core body, and a sleeve shell assembly which sleeves the outer surface of the inner shell assembly. The inner shell assembly comprises an inner sleeve shell used for containing the pressure sensing core body, a clamping end cover arranged on one side of the inner sleeve shell, a transmission pipe arranged on the side, away from the clamping end cover, of the inner sleeve shell, and at least two buckles extending outwards along the outer surface of the inner sleeve shell and used for being connected with the sleeve shell assembly. The sleeve shell assembly comprises an outer sleeve shell and a clamping groove set, the outer sleeve shell is sleeved in the direction from the conveying pipe to the clamping end cover, the clamping groove set is embedded in the outer sleeve shell, and at least part of the clamping groove set is used for containing the buckle and the clamping end cover. The buckle is buckled with the inner shell assembly on the inner side of the sleeve shell assembly, finally, the sleeve shell assembly and the inner shell assembly are assembled, the installation mode is rapid and accurate, and an operator can conveniently and rapidly assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure sensor equipment, in particular to a packaging shell and a pressure sensor. Background Art

[0002] Pressure Transducer is a sensor that can sense pressure signals and convert them into

[0003] A device or apparatus that converts a pressure signal into a usable output electrical signal. However, water vapor, oxygen, and various corrosive gases in the ambient atmosphere, as well as electromagnetic interference shielding, have a significant impact on the accuracy of the pressure sensor. Therefore, the packaging and sealing of the pressure sensor are crucial.

[0004] Existing pressure sensor housings usually adopt an integrated molding design, and the components located in the existing pressure sensor housings are fixed in the housing by welding or gluing. The housing is then sealed and encapsulated for the components in the housing by welding, riveting or gluing. The installation process is relatively complicated and difficult. At the same time, the sealed sensor housing is not convenient for subsequent maintenance and disassembly, and has certain usage limitations. Utility Model Content

[0005] Based on this, the purpose of the present invention is to provide a packaging housing and a pressure sensor, aiming to solve the problem that the existing pressure sensor housing adopts an integrated molding design, is difficult to disassemble, and has certain usage limitations.

[0006] The embodiment of the present invention provides a packaging shell, comprising an inner shell component for accommodating a pressure sensing core, and a shell component sleeved on the outer surface of the inner shell component;

[0007] The inner shell assembly includes an inner shell for accommodating the pressure sensing core, a snap-on end cap provided on one side of the inner shell, a transmission tube provided on a side of the inner shell away from the snap-on end cap, and at least two buckles extending outwardly from an outer surface of the inner shell for connecting the shell assembly;

[0008] The housing assembly includes an outer housing that is sleeved along the direction from the transmission tube to the clamping end cover, and a slot group embedded in the outer housing and at least partially used to accommodate the buckle and the clamping end cover.

[0009] As mentioned above, the present application uses a transmission tube and a clip that are adapted to the slot group. It can first guide the shell assembly to be accurately mounted on the inner shell assembly through the transmission tube and the slot group, and then complete the buckle connection with the inner shell assembly on the inner side of the shell assembly through the clip, and finally complete the assembly of the shell assembly and the inner shell assembly. The installation method is quick and accurate, which is convenient for operators to assemble quickly, and solves the problem that the existing pressure sensor shell adopts an one-piece molding design, is difficult to disassemble, and has certain usage limitations.

[0010] In addition, the packaging shell provided in accordance with the embodiment of the present invention may also have the following additional technical features:

[0011] Furthermore, the inner shell assembly further includes a clamping portion arranged on the top of the inner shell and embedded in the clamping slot group, and a core accommodating groove for accommodating the pressure sensing core is opened on the inner shell.

[0012] Furthermore, the shell assembly further includes an extension portion extending outwardly along a side of the outer shell close to the bottom of the inner shell assembly, and a pressure support portion extending inwardly along both sides of the inner bottom of the outer shell.

[0013] Furthermore, the extension portion abuts against the bottom of the clamping end cover, and the pressure supporting portion is used to support both sides of the bottom of the inner shell.

[0014] Furthermore, the slot group includes a first docking slot opened on the outer shell and close to both sides of the extension, a slot embedded on both sides of the inner shell and adapted to the buckle, a second docking slot embedded in the top of the inner side of the outer shell and adapted to the clamping part, and a third docking slot opened on the side of the outer shell away from the extension for accommodating the transmission tube.

[0015] Furthermore, the pressure sensing core includes a circuit board, a pressure support plate and an inner sealing ring sequentially embedded in the core accommodating groove, at least three springs arranged on the circuit board and located on the same side of the pressure support plate, and a terminal arranged on the side of the spring away from the circuit board.

[0016] Furthermore, the terminal extends out from a side away from the spring toward the clamping end cover.

[0017] In addition, the present invention also provides a pressure sensor, including a packaging shell arranged on the pressure sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a packaging shell proposed in an embodiment of the present utility model;

[0019] Figure 2This is a schematic diagram of a partially exploded structure of one side of a packaging shell proposed in an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of a partially exploded structure of the other side of a packaging shell proposed in an embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure at AA of a packaging shell proposed in an embodiment of the present utility model.

[0022] Description of main component symbols:

[0023]

[0024] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0025] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The drawings illustrate several embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] See also Figures 1 to 4, shown is a packaging shell in an embodiment of the present invention, including an inner shell component 1 for accommodating a pressure sensing core 3, and a shell component 2 sleeved on the outer surface of the inner shell component 1, the inner shell component 1 includes an inner shell 12 for accommodating the pressure sensing core 3, a snap-on end cover 11 arranged on one side of the inner shell 12, a transmission tube 14 arranged on the side of the inner shell 12 away from the snap-on end cover 11, and at least two snaps 16 extending outward from the outer surface of the inner shell 12 for connecting the shell component 2, the shell component 2 includes an outer shell 21 sleeved along the direction from the transmission tube 14 to the snap-on end cover 11, and a slot group embedded in the outer shell 21 and at least partially used to accommodate the snaps 16 and the snap-on end cover 11.

[0029] Furthermore, the inner shell assembly 1 also includes a clamping portion 13 arranged at the top of the inner shell 12 and embedded in the card slot group, and a core accommodating groove 17 for accommodating the pressure sensing core 3 is provided on the inner shell 12. The shell assembly 2 also includes an extension portion 22 extending outward along the outer shell 21 near the bottom side of the inner shell assembly 1, and a pressure support portion 24 extending inward along both sides of the inner bottom of the outer shell 21. The extension portion 22 abuts against the bottom of the clamping end cover 11, and the pressure support portion 24 is used to support both sides of the bottom of the inner shell 12. The card slot group includes a first docking groove 23 opened on the outer shell 21 and close to the extension portion 22, and a first docking groove 23 embedded in the outer shell 21. The card slots 25 are on both sides of the inner side of the outer shell 21 and adapted to the buckle 16, the second docking slot 26 is embedded in the top of the inner side of the outer shell 21 and adapted to the clamping part 13, and the third docking slot 27 is opened on the side of the outer shell 21 away from the extension part 22 for accommodating the transmission tube 14. The pressure sensing core 3 includes a circuit board 31, a pressure support plate 32 and an inner sealing ring 33 embedded in the core accommodating groove 17 in sequence, at least three springs 34 are arranged on the circuit board 31 and on the same side of the pressure support plate 32, and a terminal 35 is arranged on the side of the spring 34 away from the circuit board 31, and the terminal 35 passes through the clamping end cover 11 away from the side of the spring 34.

[0030] During the specific implementation, first, the operator can place the inner sealing ring 33 and the pressure support plate 32 into the core accommodating groove 17 in sequence according to the installation order of the pressure sensing core 3, and then cover the circuit board 31 on the side of the inner shell 12 where the core accommodating groove 17 is provided, and complete the welding of the pressure support plate 32 and the circuit board 31. This installation is the basic component welding assembly, and then the spring 34 is placed in the circular hole on the inner shell 12 on the same side as the core accommodating groove 17 and welded to the circuit board 31. At the same time, the terminal 35 is welded and installed on the side of the spring 34 away from the inner shell 12. Finally, the snap-fit end cover 11 is passed through the terminal to connect with the inner shell 12. In some optional embodiments, the installation of the snap-fit end cover 11 and the inner shell 12 can be screwed or snap-fitted. The screwing method is to fix the snap-fit end cover 11 to the inner shell 12 by passing bolts through the snap-fit end cover 11, while the snap-fit method is to extend the adapter block embedded in the inner shell 12 from the side of the snap-fit end cover 11 close to the inner shell 12. The operator only needs to pass the snap-fit end cover 11 through the terminal 35 and insert the block into the inner shell 12 to complete the installation and fixation, and finally complete the assembly of the pressure sensing core 3 and the inner shell assembly 1. The installation method is convenient.

[0031] Furthermore, the operator needs to wrap and protect the inner shell component 1 and the pressure sensing core 3 through the shell component 2. Specifically, the operator can fit the shell component 2 that is compatible with the inner shell component 1, and fit the shell component 2 onto the inner shell component 1 in the opposite direction of the extension 22 toward the transmission tube 14. During the process, the transmission tube 14 will first pass through the third docking groove 27, which also serves as a preliminary limit in the process of fitting the shell component 2 and the inner shell component 1, ensuring that the subsequent adapting structure on the shell component 2 corresponds to the adapting structure on the inner shell component 1, and At the same time, the clamping portion 13 provided on the inner shell component 1 will be directly embedded in the second docking groove 26 in the sleeve shell component 2 during the pushing process, and cooperate with the third docking groove 27 and the transmission tube 14 to further improve the stability of the sleeve shell component 2 during the sleeve pushing process, so as to ensure that the sleeve shell component 2 is relatively pushed along a limited trajectory and sleeved on the inner shell component 1. In addition, based on the top of the transmission tube 14 on one side of the inner shell 12, a rectangular block extends outward, which can correspond to another docking groove (such as Figure 2The rectangular groove shown is located directly below the second docking groove 26 is another docking groove), and the above-mentioned transmission tube 14, clamping portion 13 and rectangular block can effectively ensure the stability of the sleeve shell assembly 2 and the inner shell assembly 1 during the installation process, and also play the structural support purpose of the subsequent inner shell assembly 1 in the sleeve shell assembly 2, preventing the inner shell assembly 1 from loosening in the sleeve shell assembly 2 during subsequent use. Then, in the process of continuously pushing the sleeve shell assembly 2, the side of the inner sleeve shell 12 away from the clamping portion 13 will fit the top of the pressure support portion 24 and finally support the inner sleeve through the pressure support portion 24. The shell 12 is supported away from the side of the clamping portion 13. At the same time, the buckles 16 arranged on both sides of the inner shell 22 enter the outer shell 21 and are squeezed by the inner wall of the outer shell 21 to deform inward. After the extension 22 contacts the clamping end cover 11, the buckle 16 moves to the clamping groove 25. Since it is out of the restriction of the outer shell 21, the buckle 16 recovers its deformation and pops out after entering the clamping groove 25, completing the clamping connection with the inner shell assembly 1 on the inner side of the outer shell 21, and finally completing the assembly of the shell assembly 2 and the inner shell assembly 1. The installation method is quick and accurate, which is convenient for the operator to assemble quickly.

[0032] In addition, in some optional embodiments of the present invention, the buckle 16 can be designed in an isosceles trapezoidal or semi-spherical shape, and the slot 25 is adapted to the shape of the buckle 16. This shape design can facilitate the subsequent operator to perform reverse pulling and disassembly operations on the shell assembly 2.

[0033] In summary, the present application uses the transmission tube 14 and the snap 16 adapted to the slot group to first guide the shell assembly 2 to be accurately mounted on the inner shell assembly 1 through the transmission tube 14 and the slot group, and then completes the buckle connection with the inner shell assembly 1 on the inner side of the shell assembly 2 through the snap 16, and finally completes the assembly of the shell assembly 2 and the inner shell assembly 1. The installation method is quick and accurate, which is convenient for operators to assemble quickly, and solves the problem that the existing pressure sensor shell adopts an one-piece molding design, is difficult to disassemble, and has certain usage limitations.

[0034] Throughout this specification, references to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0035] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A packaging shell, characterized in that: It includes an inner shell component for accommodating a pressure sensing core, and a sleeve shell component sleeved on the outer surface of the inner shell component; The inner shell assembly includes an inner shell for accommodating the pressure sensing core, a snap-on end cap provided on one side of the inner shell, a transmission tube provided on a side of the inner shell away from the snap-on end cap, and at least two buckles extending outwardly from an outer surface of the inner shell for connecting the shell assembly; The housing assembly includes an outer housing that is sleeved along the direction from the transmission tube to the clamping end cover, and a slot group embedded in the outer housing and at least partially used to accommodate the buckle and the clamping end cover.

2. The packaging shell according to claim 1, wherein: The inner shell assembly further comprises a clamping portion arranged on the top of the inner sleeve and embedded in the clamping slot group. The inner sleeve is provided with a core accommodating groove for accommodating the pressure sensing core.

3. The packaging shell according to claim 2, characterized in that: The shell assembly further includes an extension portion extending outwardly along one side of the outer shell close to the bottom of the inner shell assembly, and a pressure support portion extending inwardly along both sides of the inner bottom of the outer shell.

4. The packaging shell according to claim 3, characterized in that The extension portion abuts against the bottom of the clamping end cover, and the pressure support portion is used to support both sides of the bottom of the inner shell.

5. The packaging case according to claim 4, wherein: The card slot group includes a first docking slot opened on the outer shell and close to both sides of the extension part, a card slot embedded on both sides of the inner part of the outer shell and adapted to the buckle, a second docking slot embedded in the top of the inner side of the outer shell and adapted to the clamping part, and a third docking slot opened on the side of the outer shell away from the extension part for accommodating the transmission tube.

6. The packaging case according to claim 2, wherein: The pressure sensing core includes a circuit board, a pressure support plate and an inner sealing ring sequentially embedded in the core accommodating groove, at least three springs arranged on the circuit board and located on the same side of the pressure support plate, and a terminal arranged on the side of the spring away from the circuit board.

7. The packaging case according to claim 6, wherein: The terminal extends out from one side of the spring toward the clamping end cover.

8. A pressure sensor, characterized in that: The packaging case comprises the packaging case according to any one of claims 1 to 7.

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