CN217112152U

CN217112152U - High-precision dew point sensor

Info

Publication number: CN217112152U
Application number: CN202123440926.7U
Authority: CN
Inventors: 彭建兵; 王敏
Original assignee: Okonoff Technology (shanghai) Co ltd; Kesima Energy Technology Shanghai Co ltd
Current assignee: Okonoff Technology (shanghai) Co ltd; Kesima Energy Technology Shanghai Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-08-02
Anticipated expiration: 2031-12-31

Abstract

The utility model relates to a dew point sensor technical field specifically discloses a high accuracy dew point sensor, including casing, intake pipe, fixing base and outlet duct, the whole bar structure that is of casing, intake pipe, fixing base set up respectively at the casing both ends, are provided with the sensor chip in the casing inside; the air inlet pipe is of a tubular structure and is mutually communicated with the interior of the shell, and the air inlet pipe is mutually installed with the shell through a threaded structure; the air outlet pipe is transversely arranged on the side surface of the shell and is connected with the fan through an air transmission pipeline; air holes are uniformly formed in the tube wall of the air inlet tube and are round through holes; the dew point sensor provided by the utility model has simple and convenient installation mode, the fan provides power to suck air, and the air passes through the shell and the sensor chip inside the shell in the flowing process, so as to detect the dew point; the filter screen plate is arranged to ensure the precision of the dew point sensor during measurement.

Description

High-precision dew point sensor

Technical Field

The utility model relates to a dew point sensor technical field specifically is a high accuracy dew point sensor.

Background

A dew point sensor, namely a dew point instrument, is an instrument capable of directly measuring dew point temperature, and belongs to a temperature and humidity sensor. Dew point, also known as dew point temperature, is the temperature to which, in meteorology, gaseous water contained in air is saturated and condensed into liquid water at a fixed pressure, at which temperature the condensed water floats in the air, known as mist, and sticks to solid surfaces, known as dew, and is known as dew point. In meteorology, the lower the air temperature, the lower the saturated vapor pressure, so for air containing a certain amount of vapor, the lower the temperature under the condition of constant air pressure, so that the saturated vapor pressure is reduced to the temperature equal to the actual vapor pressure at that time, which is called the dew point, in a manner of saying, the temperature when the vapor in the air becomes dew is called the dew point, and when the temperature is lower than zero degrees centigrade, the temperature is called the frost point.

The dew point sensor is widely applied in production, but the existing dew point sensor is insufficient in protection structure, is easily influenced by dust, so that the measurement accuracy of the dew point sensor is low, and meanwhile, the service life of the dew point sensor is shortened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high accuracy dew point sensor to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a high-precision dew point sensor comprises a shell, an air inlet pipe, a fixed seat and an air outlet pipe, wherein the shell is integrally of a strip-shaped structure, the air inlet pipe and the fixed seat are respectively arranged at two ends of the shell, and a sensor chip is arranged in the shell; the air inlet pipe is of a tubular structure and is mutually communicated with the interior of the shell, and the air inlet pipe is mutually installed with the shell through a threaded structure; the air outlet pipe is transversely arranged on the side surface of the shell and is connected with the fan through an air transmission pipeline; the pipe wall of the air inlet pipe is uniformly provided with air holes, and the air holes are circular through holes.

Preferably, the shell is connected with the fixed seat through a guide seat, the guide seat is integrally in a round table-shaped structure, and the inside of the fixed seat is sealed.

Preferably, the sensor chip is arranged on the fixing plate, and a guide rod is arranged in the shell; the guide rods are the same as the shell in length direction, and a plurality of guide rods are arranged; the fixed plate is provided with a guide hole, and the guide rod penetrates through the guide hole in a matching mode.

Preferably, a spring is arranged on the back side of the fixing plate, which is provided with the sensor chip, and the spring is fixedly arranged in the shell; the guide rod is provided with a sleeve and a filter screen plate, the sleeve is positioned between the filter screen plate and the fixed plate, the middle part of the filter screen plate is provided with filter holes, and the filter screen plate is abutted to the air inlet pipe.

Preferably, the sleeve is provided with buffering pads at two ends, and the buffering pads are made of rubber materials.

Compared with the prior art, the beneficial effects of the utility model are that: the dew point sensor provided by the utility model has simple and convenient installation mode, the fan provides power to suck air, and the air passes through the shell and the sensor chip inside the shell in the flowing process, so as to detect the dew point; the filter screen plate is arranged to ensure the precision of the dew point sensor during measurement.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the housing structure of the present invention;

reference numbers in the figures: 1. a housing; 2. an air inlet pipe; 3. a guide seat; 4. a fixed seat; 5. an air outlet pipe; 6. air holes are formed; 7. a sensor chip; 8. a fixing plate; 9. a guide bar; 10. a spring; 11. a sleeve; 12. a filter screen plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-2, the present invention provides a technical solution: a high-precision dew point sensor comprises a shell 1, an air inlet pipe 2, a fixed seat 4 and an air outlet pipe 5, wherein the shell 1 is integrally of a strip-shaped structure, the air inlet pipe 2 and the fixed seat 4 are respectively arranged at two ends of the shell 1, and a sensor chip 7 is arranged inside the shell 1; the fixed seat 4 is provided with an external thread structure, the air inlet pipe 2 is of a tubular structure and is communicated with the interior of the shell 1, and the air inlet pipe 2 is mutually installed with the shell 1 through a thread structure; the air outlet pipe 5 is transversely arranged on the side surface of the shell 1, and the air outlet pipe 5 is connected with the fan through an air transmission pipeline; the pipe wall of the air inlet pipe 2 is uniformly provided with air holes 6, and the air holes 6 are circular through holes.

Further, casing 1 links to each other through guide holder 3 with fixing base 4, guide holder 3 wholly is round platform column structure, the inside processing of sealing of fixing base 4.

Further, the sensor chip 7 is arranged on the fixing plate 8, and a guide rod 9 is arranged inside the shell 1; the guide rods 9 are the same as the shell 1 in the length direction, and a plurality of guide rods 9 are arranged; the fixing plate 8 is provided with a guide hole, and the guide rod 9 is matched to penetrate through the guide hole.

Further, a spring 10 is arranged on the back side of the fixing plate 8 where the sensor chip 7 is installed, and the spring 10 is fixedly arranged in the shell 1; the guide rod 9 is provided with a sleeve 11 and a filter screen plate 12, the sleeve 11 is positioned between the filter screen plate 12 and the fixing plate 8, the middle part of the filter screen plate 12 is provided with a filter hole, and the filter screen plate 12 is abutted to the air inlet pipe 2.

Further, cushions are arranged at two ends of the sleeve 11, and the cushions are made of rubber materials.

The working principle is as follows: in the actual use process, the whole sensor is fixed through a thread structure on the fixed seat 4 at the end part; the gas inlet pipe 2 is used for allowing external gas to enter the shell 1, the gas flows in the shell 1 and is finally discharged from the gas outlet pipe 5, and the gas passes through the sensor chip 7 in the flowing process to finish detection; the outer side of the sensor chip 7 is provided with the filter screen plate 12, and the filter screen plate 12 filters air through the middle filter hole, so that the influence of external dust on the sensor chip 7 is avoided, and the accuracy of the sensor is lowered.

The pipe wall of the air inlet pipe 2 is uniformly provided with round air holes 6, so that air can be conveniently introduced; meanwhile, the air outlet pipe 5 is connected with the fan to provide air exhaust power, so that the air inlet pipe 2 can suck air conveniently, and the air flowability is ensured, thereby ensuring the accuracy of detection. The sensor chip 7 is sleeved on the guide rod 9 through the fixing plate 8, can move on the guide rod 9, and ensures the direction to be constant; the back side of the fixing plate 8 is pressed against the spring 10, the front side of the fixing plate is pressed by the sleeve 11 and the filter screen plate 12, and the filter screen plate 12 and the air inlet pipe 2 are pressed against each other, so that the stability of the fixing plate 8 is ensured; the fixing plate 8 is provided with corresponding through holes, which is beneficial to the flow of gas. The guide seat 3 is arranged to facilitate the aligned installation of the shell 1 in the installation groove.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A high accuracy dew point sensor which characterized in that: the gas sensor comprises a shell (1), a gas inlet pipe (2), a fixed seat (4) and a gas outlet pipe (5), wherein the shell (1) is integrally of a strip-shaped structure, the gas inlet pipe (2) and the fixed seat (4) are respectively arranged at two ends of the shell (1), and a sensor chip (7) is arranged in the shell (1); the fixed seat (4) is provided with an external thread structure, the air inlet pipe (2) is of a tubular structure and is communicated with the interior of the shell (1), and the air inlet pipe (2) is mutually installed with the shell (1) through a thread structure; the air outlet pipe (5) is transversely arranged on the side surface of the shell (1), and the air outlet pipe (5) is connected with the fan through an air transmission pipeline; the pipe wall of the air inlet pipe (2) is uniformly provided with air holes (6), and the air holes (6) are circular through holes.

2. A high accuracy dew point sensor as claimed in claim 1 wherein: the shell (1) is connected with the fixed seat (4) through the guide seat (3), the guide seat (3) is integrally in a round platform-shaped structure, and the inside of the fixed seat (4) is sealed.

3. A high accuracy dew point sensor as claimed in claim 1 wherein: the sensor chip (7) is arranged on the fixing plate (8), and a guide rod (9) is arranged in the shell (1); the guide rods (9) are the same as the shell (1) in the length direction, and a plurality of guide rods (9) are arranged; the fixed plate (8) is provided with a guide hole, and the guide rod (9) is matched to penetrate through the guide hole.

4. A high accuracy dew point sensor as claimed in claim 3 wherein: a spring (10) is arranged on the back side of the fixing plate (8) where the sensor chip (7) is installed, and the spring (10) is fixedly arranged in the shell (1); the guide rod (9) is provided with a sleeve (11) and a filter screen plate (12), the sleeve (11) is positioned between the filter screen plate (12) and the fixing plate (8), the middle part of the filter screen plate (12) is provided with a filter hole, and the filter screen plate (12) and the air inlet pipe (2) are mutually abutted.

5. A high accuracy dew point sensor as claimed in claim 4 wherein: and buffer pads are arranged at two ends of the sleeve (11) and are made of rubber materials.