WO2017054211A1

WO2017054211A1 - Pressure sensor and pressure cooker

Info

Publication number: WO2017054211A1
Application number: PCT/CN2015/091380
Authority: WO
Inventors: 史利利
Original assignee: 史利利
Priority date: 2015-10-01
Filing date: 2015-10-01
Publication date: 2017-04-06
Also published as: CN206044349U

Abstract

Provided are a pressure sensor and a pressure cooker, the pressure sensor comprising: a base (1) provided with a cavity (11), and a pressure sensor element (2) mounted on the inside of said cavity (11); said cavity (11) is provided with a detection opening (111) to allow said pressure sensor element (2) to perform pressure detection and arranged on the opposite side of said pressure sensor element (2); the cavity (11) side located at the detection opening (111) is provided with a filtration mesh (3) for filtering between said cavity (11) and its external environment. Thus foreign materials or impurities are filtered by the filtration mesh, and foreign materials or impurities do not come into contact with the pressure sensor element, ensuring the good performance of the pressure sensor element.

Description

Pressure sensor and pressure cooker

Technical field

The present application relates to the field of sensors, and in particular to a pressure sensor and a pressure cooker.

Background technique

The existing pressure sensor directly senses the pressure. Once the working environment is poor, foreign matter, impurities, etc. may contact the sensing element, affecting the performance of the sensing element, and even causing damage to the sensing element.

Summary of the invention

The present application aims to solve at least one of the above technical problems to some extent.

According to a first aspect of the present application, the present application provides a pressure sensor comprising: a base provided with a cavity, and a pressure sensing element mounted on a side of the cavity, the cavity being provided with the The pressure sensing element performs pressure detection and is disposed on a detecting opening on a side opposite to the pressure sensing element, and the cavity is disposed on a side of the detecting opening to be filtered between the cavity and an external environment thereof Filter.

Further, the base includes a base and a top cover sealingly assembled with the base, the top cover and the base together defining the cavity.

Further, the pressure sensing element includes a circuit board, a chip electrically connected to the circuit board, and a connection cable passing through the top cover.

Further, a sealing ring is disposed between the top cover and the base.

Further, the filter mesh has a filter hole through which air is permeable.

According to a second aspect of the present application, the present application provides a pressure cooker provided with a pressure sensor, the pressure sensor comprising: a base provided with a cavity, and a pressure sensing element mounted on one side of the cavity, The cavity is provided with a detection opening for the pressure sensing element to be pressure-detected and disposed on a side opposite to the pressure sensing element, and the cavity is disposed at the side of the detection opening at the cavity A filter that filters between its external environment.

Further, a sealing ring is disposed between the top cover and the base.

Further, the filter mesh has a filter hole through which air is permeable.

The beneficial effects of the application are:

By providing a pressure sensor and a pressure cooker, the pressure sensor includes: a base provided with a cavity, and a pressure sensing element mounted on one side of the cavity, the cavity being provided for the pressure sensing element The pressure is detected and disposed on a side opposite to the pressure sensing element, and a side of the cavity on the side of the detection opening is provided with a filter that filters between the cavity and its external environment. In this way, foreign matter or impurities in the surrounding environment are filtered by the filter mesh, and foreign matter or impurities do not contact the pressure sensing element, thereby ensuring the performance of the pressure sensing element.

DRAWINGS

FIG. 1 is a schematic structural view of a pressure sensor according to an embodiment of the present application.

detailed description

The embodiments of the present application are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are intended to be illustrative, and are not to be construed as limiting.

In the description of the present application, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position of indications such as "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of the description and the simplified description, and is not intended to indicate or imply that the device or component referred to has a specific orientation, and is constructed and operated in a specific orientation. It is not to be construed as limiting the application.

Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include one or more of the features either explicitly or implicitly. In the description of the present application, the meaning of "a plurality" is two or more unless specifically and specifically defined otherwise.

In the present application, the terms "installation", "connected", "connected", "fixed" and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless otherwise explicitly stated and defined. , or connected integrally; may be mechanical connection or electrical connection; may be directly connected, or may be indirectly connected through an intermediate medium, and may be internal communication between the two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood on a case-by-case basis.

In the present application, the first feature "on" or "under" the second feature may include direct contact of the first and second features, and may also include first and second features, unless otherwise specifically defined and defined. It is not in direct contact but through additional features between them. Moreover, the first feature "above", "above" and "above" the second feature includes the first feature directly above and above the second feature, or merely indicating that the first feature level is higher than the second feature. The first feature "below", "below" and "below" the second feature includes the first feature directly above and above the second feature, or It merely means that the first feature level is smaller than the second feature.

The present application will be further described in detail below with reference to the accompanying drawings.

Referring to FIG. 1 , the present application provides a pressure cooker, which may be an electric pressure cooker or a non-electric pressure cooker. Of course, if it is a non-electric pressure cooker, a corresponding circuit must be provided to adapt the pressure sensor therein, but the energy supply may be gas or natural gas. Wait.

A pressure sensor is disposed in the pressure cooker to detect the internal pressure of the pressure cooker. The pressure sensor can be placed in the pressure cooker cover or the pot body.

The pressure sensor mainly includes a base 1 provided with a cavity 11, and a pressure sensing element 2 mounted on one side of the cavity 11. The cavity 11 is provided with a detection opening 111 for pressure detection of the pressure sensing element 2 and disposed on the side opposite to the pressure sensing element 2, and the cavity 11 is disposed on the side of the detection opening 111 with the cavity 11 and its external environment. Filter 3 is filtered between. The filter 3 has a filter hole through which air is permeated, and the size of the filter hole is designed in consideration of the size of impurities or foreign matter that it needs to block.

In the present embodiment, the base 1 includes a base 12 and a top cover 13 that is sealingly assembled with the base 12, and the top cover 13 and the base 12 together define a cavity 11. A seal ring 14 is disposed between the top cover 13 and the base 12.

The pressure sensing element 2 includes a circuit board 21, a chip 22 electrically connected to the circuit board 21, and a connection cable 23 that passes through the top cover 13.

In this way, foreign matter or impurities in the surrounding environment are filtered by the filter mesh, and foreign matter or impurities do not contact the pressure sensing element, thereby ensuring the performance of the pressure sensing element.

In the description of the present specification, reference is made to the descriptions of the terms "one embodiment", "some embodiments", "one embodiment", "some embodiments", "example", "specific examples", or "some examples" The specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the application. In the present specification, the schematic representation of the above terms does not necessarily mean the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

The above content is a further detailed description of the present application in conjunction with the specific embodiments, and the specific implementation of the present application is not limited to the description. For the ordinary person skilled in the art to which the present invention pertains, a number of simple deductions or substitutions may be made without departing from the spirit of the present application.

Claims

A pressure sensor includes: a base provided with a cavity; and a pressure sensing element mounted on one side of the cavity, the cavity being provided with pressure sensing for the pressure sensing element and disposed at The detection opening on the opposite side of the pressure sensing element is characterized in that a filter screen is disposed on the side of the detection opening on the side of the detection opening for filtering between the cavity and its external environment.
The pressure sensor of claim 1 wherein said base includes a base and a top cover sealingly assembled with the base, said top cover and said base collectively defining said cavity.
The pressure sensor according to claim 2, wherein said pressure sensing element comprises: a circuit board, a chip electrically connected to the circuit board, and a connection cable, the connection cable passing through the top cover.
The pressure sensor according to claim 2, wherein a seal ring is disposed between the top cover and the base.
The pressure sensor according to claim 1, wherein said filter has a filter hole through which air is transmitted.
A pressure cooker provided with a pressure sensor, the pressure sensor comprising: a base provided with a cavity, and a pressure sensing element mounted on one side of the cavity, the cavity being provided with the pressure sensing element a detection opening that is pressure-detected and disposed on a side opposite to the pressure sensing element, wherein a side of the cavity on the side of the detection opening is provided for filtering between the cavity and an external environment thereof Filter.
A pressure cooker according to claim 6 wherein said base includes a base and a top cover sealingly fitted to the base, said top cover and said base collectively defining said cavity.
The pressure cooker according to claim 7, wherein said pressure sensing element comprises: a circuit board, a chip electrically connected to the circuit board, and a connection cable, the connection cable passing through the top cover.
The pressure cooker according to claim 7, wherein a seal ring is disposed between the top cover and the base.
A pressure cooker according to claim 6 wherein said filter screen has a filter aperture for the passage of air.