Air speed and air pressure sensor for range hood and range hood
A technology of wind pressure sensor and range hood, which is applied in the field of sensors, can solve the problems such as the failure of the pressure pipe to work normally, and achieve the effect of preventing oil pollution from clogging
Active Publication Date: 2016-04-06
NINGBO FOTILE KITCHEN WARE CO LTD
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Problems solved by technology
However, the existing Verabar tubes used in air conditioning and HVAC systems, as commonly used flowmeters, are not suitable for the working environment of range hoods. , the condensed oil will often block the pressure tap hole, making the pressure tap not work properly, so further research is needed to obtain a wind speed and pressure sensor suitable for the working environment of the range hood
Method used
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Embodiment Construction
[0043] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0044] see figure 1 , a wind speed and wind pressure sensor, used in range hoods, including a sampling part and a circuit control part, the sampling part includes a pressure taking tube 1, a first pressure introduction tube 21 and a second pressure introduction tube 21 arranged at the end of the pressure taking tube 1 Tube 22, and pressure sensor 3.
[0045] Wherein, the pressure taking pipe 1 has a partition 11 arranged along the axial direction of the pressure taking pipe 1 , so that the pressure taking pipe 1 is divided into a first pressure taking chamber 12 and a second pressure taking chamber 13 located on both sides of the partition 11 . The first pressure sensing chamber 12 is facing the air flow, while the second pressure sensing chamber 13 is away from the air flow, that is, when the air flow passes through the pressure sensing tube...
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Abstract
The invention discloses an air speed and air pressure sensor for a range hood, which comprises a sampling part, wherein the sampling part comprises a pressure sampling pipe, a first pressure inducing pipe, a second pressure inducing pipe and a pressure sensor; the first pressure inducing pipe and the second pressure inducing pipe are arranged at an end part of the pressure sampling pipe and are connected to the pressure sensor through guide pipes respectively; a partition plate is arranged in the pressure sampling pipe to divide the interior of the pressure sampling pipe into a first pressure sampling cavity and a second pressure sampling cavity; the first pressure sampling cavity faces an air flow while the second pressure sampling cavity is far away from the air flow; the first pressure inducing pipe communicates with the first pressure sampling cavity; the second pressure inducing pipe communicates with the second pressure sampling cavity; and high pressure sampling holes (14) communicating with the first pressure sampling cavity (12) and low pressure sampling holes (15) communicating with the second pressure sampling cavity (13) are formed in the pressure sampling pipe (1). The air speed and air pressure sensor is characterized in that the minimum diameters of the high pressure sampling holes are greater than or equal to 3mm, and the areas of the high pressure sampling holes is greater than or equal to 9 mm<2>.
Description
technical field [0001] The invention relates to a sensor, in particular to a wind speed and pressure sensor for a range hood, a range hood using the wind speed and pressure sensor, and a method for adaptively adjusting and controlling the fan speed of the range hood. Background technique [0002] When the range hood is in use, when the amount of indoor fumes increases or the wind pressure of the public flue increases, it is necessary to adjust the motor speed to increase the exhaust air volume and improve the smoke exhaust effect. Traditional range hoods often require the user to Subjectively feel the manual adjustment, which not only takes up busy hands, but also easily contaminates oil on the fingers; automatically adjusting the wind speed according to the environment can greatly improve the intelligence of the range hood, which is one of the typical features of future kitchen appliances; Reducing the wind speed can save electricity, reduce noise to a certain extent, and c...
Claims
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Login to View More IPC IPC(8): F24C15/20
CPCF24C15/20F24C15/2021
Inventor 高婷婷徐钦龙茅忠群诸永定刘戈
Owner NINGBO FOTILE KITCHEN WARE CO LTD