Ceramic pressure sensor fast to package

Abstract

The utility model relates to a ceramic pressure sensor fast to package, which comprises a ceramic pressure core body and a shell, a plurality of arc-shaped grooves are arranged on the outer side of the ceramic pressure core body, a plurality of arc-shaped rods matched with the arc-shaped grooves are fixed on the inner wall of the shell, the plurality of arc-shaped rods can be respectively inserted into the corresponding arc-shaped grooves, and a concave part is arranged at the bottom of the ceramic pressure core body. A step table is arranged in the middle of the shell and is in sliding connection with the sunken part of the ceramic pressure core body, a gasket is arranged at the step position of the step table, a through hole is formed in the bottom of the shell, and a T-shaped pipe is arranged in the through hole. The ceramic pressure core body is placed in the shell, the multiple arc-shaped rods are inserted into the corresponding arc-shaped grooves correspondingly, so that the limiting effect on the ceramic pressure core body in the shell is achieved, the step table is in sliding connection with the concave part of the ceramic pressure core body, and the conical surface of the T-shaped pipe extrudes the upper side of the gasket; therefore, the ceramic pressure core body is further limited and fixed.

Description

Technical Field

[0001] The utility model relates to the technology of ceramic pressure sensors, in particular to a ceramic pressure sensor with quick encapsulation. Background Art

[0002] The ceramic capacitive pressure sensor core is a sealed gauge pressure structure, which consists of a ceramic base, a deformable diaphragm and a hollow sealed cavity. The pressure-bearing surface is the deformable diaphragm. When the pressure on the core changes, the deformable diaphragm bends after bearing the pressure, resulting in a change in the distance between the substrates, causing a change in the capacitance between the electrodes. The capacitance change is converted into a standard output through a conditioning chip. Encapsulation is a key step in the manufacturing process of electronic devices. It wraps and protects the chip, other components and connection lines, etc. to form a complete electronic component.

[0003] When the existing ceramic pressure sensors are encapsulated, it is often inconvenient to install and fix the ceramic pressure core. Content of the Utility Model

[0004] The purpose of the utility model is to provide a ceramic pressure sensor with quick encapsulation, which is used to solve the problem that it is often inconvenient to quickly install and fix the ceramic pressure core when the existing ceramic pressure sensors are encapsulated.

[0005] To solve the above problems, the utility model provides a ceramic pressure sensor with quick encapsulation, which includes a ceramic pressure core and a housing. A plurality of arc-shaped grooves are arranged on the outer side of the ceramic pressure core, and a plurality of arc-shaped rods matched with the arc-shaped grooves are fixed on the inner wall of the housing. The plurality of arc-shaped rods can be respectively inserted into the corresponding arc-shaped grooves. A concave part is arranged at the bottom of the ceramic pressure core, a stepped platform is arranged in the middle of the housing, and the stepped platform is slidably connected with the concave part of the ceramic pressure core. A washer is arranged at the step of the stepped platform. A through hole is arranged at the bottom of the housing, and a T-shaped pipe is arranged in the through hole. A conical surface is arranged at the edge of the top of the T-shaped pipe, and the conical surface at the top of the T-shaped pipe contacts the upper side of the washer. A plurality of L-shaped grooves arranged in an annular array are opened in the housing, and an L-shaped rod is slidably connected in the L-shaped groove. The bottom of the L-shaped rod can contact the upper side of the ceramic pressure core.

[0006] The ceramic pressure sensor with quick encapsulation provided by the utility model also has the following technical features:

[0007] Further, a vertical groove is opened on the stepped platform, and a vertical rod is fixed on the lower side of the top of the T-shaped pipe. The vertical rod is slidably connected with the corresponding vertical groove.

[0008] Further, a screw pipe is threadedly connected to the bottom of the T-shaped pipe. An outer edge is arranged at the bottom of the screw pipe, and the upper side of the outer edge can contact the bottom of the housing.

[0009] Further, a screw cap is threadedly connected to the top of the housing.

[0010] Further, a conical surface is provided at the bottom of the screw cap, and a column is fixed to one end of the L-shaped rod extending out of the L-shaped groove, and the tops of multiple columns can all contact the conical surface of the screw cap.

[0011] Further, one side of the L-shaped rod away from the corresponding column is fixedly connected to the housing through a tension spring.

[0012] The utility model has the following beneficial effects: By placing the ceramic pressure core in the housing, multiple arc-shaped rods are respectively inserted into the corresponding arc-shaped grooves, so as to play a role in limiting the ceramic pressure core in the housing. By slidingly connecting the stepped platform with the concave part of the ceramic pressure core, and the conical surface of the T-shaped tube extrudes the upper side of the gasket, so as to further play a role in limiting and fixing the ceramic pressure core. By making the L-shaped rod extend out of the L-shaped groove and be located above the ceramic pressure core, so as to play a role in fixing the position of the ceramic pressure core, making the device convenient for installing and fixing the ceramic pressure core. Description of the Drawings

[0013] Figure 1 is a sectional view of an embodiment of the utility model;

[0014] Figure 2 is a perspective view of an embodiment of the utility model;

[0015] Figure 3 is a sectional view of the embodiment of the utility model after removing the screw cap;

[0016] Figure 4 is an embodiment of the utility model Figure 1 The enlarged structural schematic diagram of part A in. Detailed Embodiment

[0017] The utility model will be described in detail below with reference to the drawings and in conjunction with the embodiments. It should be noted that, without conflict, the embodiments in the utility model and the features in the embodiments can be combined with each other.

[0018] Such as Figures 1 to 4In the embodiment of the ceramic pressure sensor with quick encapsulation of the present utility model shown, the ceramic pressure sensor with quick encapsulation includes a ceramic pressure core body 1 and a housing 2. A plurality of arc-shaped grooves are provided on the outer side of the ceramic pressure core body 1, and a plurality of arc-shaped rods 3 that cooperate with the arc-shaped grooves are fixed on the inner wall of the housing 2. The plurality of arc-shaped rods 3 can be respectively inserted into the corresponding arc-shaped grooves. A recessed portion is provided at the bottom of the ceramic pressure core body 1, and a stepped platform 4 is provided in the middle of the housing 2. The stepped platform 4 is slidably connected to the recessed portion of the ceramic pressure core body 1. A washer 5 is provided at the step of the stepped platform 4. A through hole is provided at the bottom of the housing 2, and a T-shaped tube 6 is provided in the through hole. A conical surface is provided at the edge of the top of the T-shaped tube 6, and the conical surface at the top of the T-shaped tube 6 contacts the upper side of the washer 5. A plurality of L-shaped grooves arranged in an annular array are formed in the housing 2, and an L-shaped rod 7 is slidably connected in the L-shaped groove. The bottom of the L-shaped rod 7 can contact the upper side of the ceramic pressure core body 1. By placing the ceramic pressure core body 1 in the housing 2 and inserting the plurality of arc-shaped rods 3 into the corresponding arc-shaped grooves respectively, a limiting effect on the ceramic pressure core body 1 in the housing 2 is achieved. By the slidable connection between the stepped platform 4 and the recessed portion of the ceramic pressure core body 1 and the extrusion of the conical surface of the T-shaped tube 6 on the upper side of the washer 5, a further limiting and fixing effect on the ceramic pressure core body 1 is achieved. By making the L-shaped rod 7 extend out of the L-shaped groove and be located on the upper side of the ceramic pressure core body 1, a fixing effect on the position of the ceramic pressure core body 1 is achieved, making the device convenient for installing and fixing the ceramic pressure core body.

[0019] In an embodiment of the present application, preferably, a vertical groove is formed in the stepped platform 4, and a vertical rod 8 is fixed to the lower side of the top of the T-shaped tube 6. The vertical rod 8 is slidably connected to the corresponding vertical groove, which can limit the T-shaped tube 6, making the T-shaped tube 6 only move up and down.

[0020] In an embodiment of the present application, preferably, the bottom of the T-shaped tube 6 is threadedly connected with a rotating tube 9. An outer edge is provided at the bottom of the rotating tube 9, and the upper side of the outer edge can contact the bottom of the housing 2. By rotating the rotating tube 9, the bottom of the T-shaped tube 6 can be made to squeeze the washer 5, so that it can contact the ceramic pressure core body 1 and the stepped platform 4.

[0021] In an embodiment of the present application, preferably, a rotating cover 10 is threadedly connected to the top of the housing 2, and the rotating cover 10 can play a role in protecting the top of the ceramic pressure core body 1.

[0022] In an embodiment of the present application, preferably, a conical surface is provided at the bottom of the rotating cover 10. A column 11 is fixed to one end of the L-shaped rod 7 extending out of the L-shaped groove. The tops of the plurality of columns 11 can all contact the conical surface of the rotating cover 10. When the rotating cover 10 rotates and moves downward, the conical surface of the rotating cover 10 contacts the tops of the plurality of columns 11, making the plurality of columns 11 drive the L-shaped rod 7 to move towards the middle of the ceramic pressure core body 1, so that the bottom of the L-shaped rod 7 contacts the upper side of the ceramic pressure core body 1, playing a fixing role on the ceramic pressure core body 1.

[0023] In an embodiment of the present application, preferably, one side of the L-shaped rod 7 away from the corresponding column 11 is fixedly connected to the housing 2 through a tension spring. In the normal state, when the rotary cover 10 is not installed, the L-shaped rod 7 is in close contact with the inner wall of the housing 2 under the action of the tension spring, avoiding obstruction to the installation of the ceramic pressure core 1. After placing the ceramic pressure core 1 inside the housing 2, the device can be encapsulated more conveniently and quickly by rotating the rotary cover 10 and the rotary tube 9.

[0024] When the present utility model is in use, when the rotary cover 10 is not installed, the L-shaped rod 7 is in close contact with the inner wall of the housing 2 under the action of the tension spring, avoiding obstruction to the installation of the ceramic pressure core 1. By placing the ceramic pressure core 1 inside the housing 2, the plurality of arc-shaped rods 3 are respectively inserted into the corresponding arc-shaped grooves, thereby playing a role in limiting the ceramic pressure core 1 inside the housing 2. By slidingly connecting the stepped platform 4 with the recessed part of the ceramic pressure core 1 and rotating the rotary tube 9, the bottom of the T-shaped tube 6 can be made to squeeze the washer 5, so that it can be in contact with the ceramic pressure core 1 and the stepped platform 4, thereby playing a further role in limiting and fixing the ceramic pressure core 1. When the rotary cover 10 rotates and moves downward, the conical surface of the rotary cover 10 contacts the tops of the plurality of columns 11, causing the plurality of columns 11 to drive the L-shaped rod 7 to move towards the middle of the ceramic pressure core 1, so that the bottom of the L-shaped rod 7 contacts the upper side of the ceramic pressure core 1. By making the L-shaped rod 7 extend out of the L-shaped groove and be located on the upper side of the ceramic pressure core 1, the position of the ceramic pressure core 1 can be fixed, making the device convenient for installing and fixing the ceramic pressure core.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present utility model.

Claims

1. A ceramic pressure sensor with quick packaging, comprising a ceramic pressure core (1) and a housing (2), characterized in that: The outer side of the ceramic pressure core (1) is provided with a plurality of arc-shaped grooves, the inner wall of the shell (2) is fixed with a plurality of arc-shaped rods (3) matched with the arc-shaped grooves, and the plurality of arc-shaped rods (3) can be respectively inserted into the corresponding arc-shaped grooves, the bottom of the ceramic pressure core (1) is provided with a recessed portion, the middle of the shell (2) is provided with a stepped platform (4), the stepped platform (4) is slidably connected to the recessed portion of the ceramic pressure core (1), a gasket (5) is provided at the step of the stepped platform (4), the bottom of the shell (2) is provided with a through hole, a T-shaped tube (6) is provided in the through hole, a conical surface is provided at the edge of the top of the T-shaped tube (6), and the conical surface of the top of the T-shaped tube (6) contacts the upper side of the gasket (5), and a plurality of L-shaped grooves arranged in a ring array are opened in the shell (2), and L-shaped rods (7) are slidably connected in the L-shaped grooves, and the bottom of the L-shaped rods (7) can contact the upper side of the ceramic pressure core (1).

2. The ceramic pressure sensor with quick packaging according to claim 1, characterized in that: The step platform (4) is provided with a vertical groove, and a vertical rod (8) is fixed to the lower side of the top of the T-shaped tube (6), and the vertical rod (8) is slidably connected to the corresponding vertical groove.

3. The ceramic pressure sensor with quick packaging according to claim 1, characterized in that: The bottom of the T-shaped tube (6) is threadedly connected to a spiral tube (9), and the bottom of the spiral tube (9) is provided with an outer edge, and the upper side of the outer edge can contact the bottom of the shell (2).

4. The ceramic pressure sensor with quick packaging according to claim 1, characterized in that: A screw cap (10) is threadedly connected to the top of the housing (2).

5. The ceramic pressure sensor with quick packaging according to claim 4, characterized in that: The bottom of the rotary cover (10) is provided with a conical surface, and one end of the L-shaped rod (7) extending out of the L-shaped groove is fixed with a column (11), and the tops of the plurality of columns (11) can all contact the conical surface of the rotary cover (10).

6. The ceramic pressure sensor with quick packaging according to claim 5, characterized in that: The side of the L-shaped rod (7) away from the corresponding upright post (11) is fixedly connected to the housing (2) via a tension spring.

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