Calibration device for temperature and humidity sensor of air conditioner

Abstract

The invention discloses a calibration device for a temperature and humidity sensor of an air conditioner. The calibration device comprises a box body and a calibrated temperature and humidity measuring instrument, an electric heating film and a plurality of sensor mounting points are arranged in the box body, a water injection port is formed in the side wall of the box body corresponding to the electric heating film, and a plurality of fans are further arranged in the box body; an electric control board is arranged on the outer side of the box body and is electrically connected with the electric heating film, the fans and the sensor mounting points; and a probe of the calibrated temperature and humidity measuring instrument is arranged in the box body. The temperature and humidity sensor calibration device is simple in structure, easy to manufacture, safe, reliable and capable of achieving batch calibration of temperature and humidity sensors.

Description

Technical Field

[0001] The present invention relates to the field of sensor calibration devices, in particular to a calibration device for air-conditioning temperature and humidity sensors. Background Art

[0002] Temperature and humidity sensors in air conditioners require calibration before installation, often on a large scale. Traditional manual calibration of temperature and humidity sensors is inefficient, time-consuming, and labor-intensive, making it unsuitable for large-scale calibration. Summary of the Invention

[0003] The present invention provides an air-conditioning temperature and humidity sensor calibration device to solve the problems of poor efficiency, time and labor consumption, and difficulty in applying to large-scale calibration in the prior art air-conditioning temperature and humidity sensor calibration.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is: An air-conditioning temperature and humidity sensor calibration device comprises a box (1) and a calibrated temperature and humidity measuring instrument (11); an electric heating film (4) and a plurality of sensor mounting points (3) surrounding the electric heating film (4) are provided inside the box (1), each sensor mounting point (3) is used to mount a temperature and humidity sensor to be calibrated, a water injection port (5) is provided on a side wall of the box (1) at a position corresponding to the electric heating film (4), and a plurality of fans (2) are also provided inside the box (1); an electric control board (7) is provided outside the box (1), the electric control board (7) is electrically connected to the electric heating film (4) and each fan control, the electric control board (7) is also connected to a communication bus (6), the communication bus (6) penetrates into the box (1), and each sensor mounting point (3) is electrically connected to the communication bus (6) respectively; a probe of the calibrated temperature and humidity measuring instrument (11) is provided in the box (1), and the calibrated temperature and humidity measuring instrument (11) is connected to the probe via a signal line penetrated into the box (1).

[0005] Furthermore, a bracket (9) is provided in the box body (1), and a plurality of sensor mounting points are provided on the bracket (9).

[0006] Furthermore, the bracket (9) surrounds the outside of the electric heating film (4), and a plurality of sensor installation points (3) on the bracket (9) are circumferentially distributed at equal intervals around the electric heating film (4).

[0007] Furthermore, each sensor installation point (3) has a communication terminal, which is used to electrically connect the communication bus (6) and the corresponding temperature and humidity sensor to be calibrated.

[0008] Furthermore, the fans (2) are distributed circumferentially around the electric heating film (4) at equal intervals.

[0009] Furthermore, a display module (8) is provided outside the box (1), and the display module (8) is electrically connected to the electric control board (7).

[0010] During calibration, the present invention installs each temperature and humidity sensor to be calibrated at a sensor mounting point. Water is dripped onto the electric heating film, which then heats it. This creates a temperature and humidity field environment inside the box. Fan 2 creates air flow inside the box, ensuring a uniform distribution of the temperature and humidity field inside the box. The temperature and humidity data from the temperature and humidity sensors to be calibrated is then collected and transmitted to the electronic control board. Combined with the internal temperature and humidity data collected by the calibrated temperature and humidity measuring instrument, calibration of each temperature and humidity sensor to be calibrated is then achieved.

[0011] The present invention can create a uniformly distributed temperature and humidity field environment, effectively realize the calibration of temperature and humidity sensors, and can calibrate a large number of temperature and humidity sensors at one time. Compared with the existing technology, the present invention has the following advantages: 1. The present invention has a simple structure, is easy to manufacture, and is safe and reliable; 2. The present invention can isolate environmental interference, and the internal temperature and humidity field can be balanced and adjusted, making the calibration more accurate.

[0012] 3. The principle of the present invention is simple and can realize batch calibration of temperature and humidity sensors. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of an embodiment of the present invention. DETAILED DESCRIPTION

[0014] The present invention will be further described below with reference to the accompanying drawings and examples.

[0015] like Figure 1 As shown, this embodiment discloses an air-conditioning temperature and humidity sensor calibration device, including a box 1 and a calibrated temperature and humidity measuring instrument 11.

[0016] An electric heating film 4 is provided at the bottom center of the box body 1 . The shape of the electric heating film 4 is regular, such as a circle, and the center of the electric heating film 4 coincides with the center of the bottom of the box body 1 .

[0017] A bracket 9 is provided at the bottom of the box body 1 . The bracket 9 is in a circular shape and surrounds the electric heating film 4 . The bracket 9 is concentric with the electric heating film 4 .

[0018] The bracket 9 is provided with several sensor mounting points 3, which are equally spaced and distributed around the electric heating film 4. Each sensor mounting point 3 comprises a U-shaped member, which houses the temperature and humidity sensor to be calibrated. The U-shaped member is provided with a communication terminal for electrically connecting to the corresponding temperature and humidity sensor to be calibrated.

[0019] A water inlet 5 is provided at the top center of the box body 1 corresponding to the position of the electric heating film 4 , and the water inlet 5 is used to drip water into the electric heating film 4 .

[0020] Fans 2 are installed on the four side walls of the box body 1, and the fans 2 are distributed in an equidistant manner around the electric heating film.

[0021] An electronic control board 7 and a display module 8 are mounted on the outer wall of the housing 1. The display module 8 is electrically connected to the signal output port of the electronic control board 7. The communication port of the electronic control board 7 is connected to a communication bus 6, which penetrates the interior of the housing 1. The communication terminals of each sensor mounting point 3 are electrically connected to the communication bus 6 in parallel.

[0022] The calibrated temperature and humidity measuring instrument 11 is arranged outside the box 1, and the probe 10 of the calibrated temperature and humidity measuring instrument 11 is arranged inside the box 1, and the probe 10 is located in the ring area of the bracket 9. The calibrated temperature and humidity measuring instrument 11 is connected to the probe through a signal line that penetrates into the box 1.

[0023] In this embodiment, the box 1 and the electric heating film 4 cooperate to create a constant temperature and humidity field environment, so that the temperature and humidity environment field values of the probe of the calibrated temperature and humidity measuring instrument 11 and the temperature and humidity sensor to be calibrated in the box are the same.

[0024] The fan 2 is used to circulate the air in the box 1 so that the temperature and humidity field environment is evenly distributed, thereby making the temperature and humidity field environment of each sensor installation point 3 in the box consistent.

[0025] The water injection port 5 is used to add water to the electric heating film 4 , which is continuously heated and evaporated by the heating film 4 to form water vapor, so as to maintain a constant temperature and humidity in the box body 1 .

[0026] The temperature and humidity parameters collected by each temperature and humidity sensor to be calibrated are sent to the communication bus 6 through the communication terminal of each sensor installation point 3, and then sent to the electronic control board 7 through the communication bus 6. The data collected by each temperature and humidity sensor to be calibrated are centrally transmitted through the communication bus 6.

[0027] The display module 8 is used to intuitively display the temperature data collected in real time by each temperature and humidity sensor to be measured, so as to facilitate real-time observation by the operator.

[0028] The calibrated temperature and humidity measuring instrument 11 is electrically connected to the electric control board 7 , so that the temperature and humidity data collected by the calibrated temperature and humidity measuring instrument 11 are also sent to the electric control board 7 , and then sent to the display module 8 by the electric control board 7 for display.

[0029] A small amount of clean water is dripped onto the surface of the electric heating film 4 through the water inlet 5, and then a sealing plug is inserted into the water inlet 5. The electric heating film 4 heats up and evaporates to adjust the temperature and humidity parameters inside the box 1. The fan 2 is turned on to make the temperature and humidity field inside the box 1 uniform through air circulation. The probe 10 of the calibrated temperature and humidity measuring instrument 11 is inserted into the interior of the box 1. During the calibration process, the electronic control board 7 reads the temperature and humidity data collected by the temperature and humidity sensor to be calibrated and displays it in real time through the display module 8. By comparing the temperature and humidity data collected by the temperature and humidity sensor to be calibrated with the temperature and humidity data collected by the calibrated temperature and humidity measuring instrument 11, each temperature and humidity sensor to be calibrated is calibrated.

[0030] The preferred embodiments of the present invention are described in detail above with reference to the accompanying drawings. The embodiments described in the present invention are merely descriptions of the preferred embodiments of the present invention and do not limit the concept and scope of the present invention. The various specific technical features described in the above specific embodiments can be combined in any suitable manner unless there is any contradiction. Such combinations should also be regarded as the contents disclosed in this disclosure as long as they do not violate the concept of the present invention. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0031] The present invention is not limited to the specific details of the above-mentioned embodiments. Within the scope of the technical concept of the present invention and without departing from the design concept of the present invention, various modifications and improvements made to the technical solution of the present invention by those skilled in the art should fall within the scope of protection of the present invention. The technical contents for which protection is sought in the present invention have been fully recorded in the claims.

Claims

1. A calibration device for air conditioning temperature and humidity sensors, characterized in that: The invention comprises a box body (1) and a calibrated temperature and humidity measuring instrument (11); an electric heating film (4) and a plurality of sensor mounting points (3) surrounding the electric heating film (4) are provided inside the box body (1); each sensor mounting point (3) is used to mount a temperature and humidity sensor to be calibrated; a water inlet (5) is provided on the side wall of the box body (1) corresponding to the position of the electric heating film (4); and a plurality of fans (2) are also provided inside the box body (1); an electric control board (7) is provided outside the box body (1); the electric control board (7) is electrically connected to the electric heating film (4) and each fan control; the electric control board (7) is also connected to a communication bus (6); the communication bus (6) penetrates into the box body (1), and each sensor mounting point (3) is electrically connected to the communication bus (6); a probe of the calibrated temperature and humidity measuring instrument (11) is provided in the box body (1), and the calibrated temperature and humidity measuring instrument (11) is connected to the probe via a signal line penetrated into the box body (1).

2. The air conditioning temperature and humidity sensor calibration device according to claim 1, characterized in that: A bracket (9) is also provided in the box body (1), and a plurality of sensor installation points (3) are provided on the bracket (9).

3. The air conditioning temperature and humidity sensor calibration device according to claim 2, characterized in that: The bracket (9) surrounds the outside of the electric heating film (4), and a plurality of sensor installation points (3) on the bracket (9) are circumferentially distributed at equal intervals around the electric heating film (4).

4. The air conditioning temperature and humidity sensor calibration device according to claim 1, characterized in that: Each sensor installation point (3) has a communication terminal, and the communication terminal is used to electrically connect the communication bus (6) and the corresponding temperature and humidity sensor to be calibrated.

5. The air conditioning temperature and humidity sensor calibration device according to claim 1, characterized in that: The fans (2) are distributed circumferentially around the electric heating film (4) at equal intervals.

6. An air conditioning temperature and humidity sensor calibration device according to any one of claims 1 to 4, characterized in that: A display module (8) is further provided outside the box body (1), and the display module (8) is electrically connected to the electric control board (7).

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