Air chamber cooling device for air quality monitoring system sensor

Abstract

The utility model discloses an air chamber cooling device for an air quality monitoring system sensor. The air chamber cooling device comprises a heat insulation part, a heat dissipation mechanism, an electronic refrigeration mechanism, a controller, a temperature detection mechanism and an air chamber, the heat insulation part is arranged on the air chamber and used for guaranteeing the temperature difference inside and outside the air chamber. The cold end of the electronic refrigeration mechanism is connected with the outer wall of the air chamber, and the hot end of the electronic refrigeration mechanism is connected with the heat dissipation mechanism; the temperature detection mechanism is arranged on the air chamber and is used for measuring the temperature of the air chamber and transmitting temperature information to the controller; the corresponding ends of the controller are electrically connected with the corresponding ends of the temperature detection mechanism, the heat dissipation mechanism and the electronic refrigeration mechanism. According to the device for reducing the temperature of the air chamber in the high-temperature environment in an electronic refrigeration mode, the device is provided with the temperature sensor and the controller, the temperature of the air chamber can be detected, and starting or stopping of electronic refrigeration can be determined according to the set temperature.

Description

Technical Field

[0001] The utility model relates to the technical field of air chamber cooling, in particular to an air chamber cooling device for an air quality monitoring system sensor. Background Art

[0002] The air quality monitoring system is an online monitoring device based on sensor technology. It is widely used in real-time monitoring of indoor and outdoor environments. It can be used to monitor various gaseous pollutants such as TVOC, SO2, NO2, CO, O3, H2S, NH3, etc. to assess the level of pollutants in the air.

[0003] A sensor is a detection device that can sense the information being measured. Usually one or more sensors are encapsulated in an air chamber unit with an air inlet and outlet, and the air chamber unit is installed inside the chassis of the air quality monitoring system.

[0004] Air quality monitoring systems are usually located outdoors. In the summer, the sun's rays will dramatically increase the temperature of the chassis, and the temperature of the air chamber unit installed inside the chassis will also rise synchronously. In extreme cases, the temperature can exceed 60°C, far exceeding the normal operating temperature range of most sensors. Working in such an environment will not only fail to guarantee measurement performance, but will also significantly shorten the life of the sensor.

[0005] In order to reduce the temperature of the air chamber, heat sinks and exhaust fans are usually added to the air chamber for cooling. However, this method can only dissipate the heat generated by the sensor itself when it is working. When the entire system is working in a high temperature environment, it is of little help in reducing the temperature of the sensor. Utility Model Content

[0006] In view of the problems existing in the prior art, the utility model provides an air chamber cooling device for an air quality monitoring system sensor. The utility model adopts electronic refrigeration to reduce the temperature of the air chamber in a high temperature environment. The device is equipped with a temperature sensor and a controller, which can detect the air chamber temperature and determine the start or stop of the electronic refrigeration according to the set temperature, so that the sensor is always at the optimal working temperature, thereby improving the measurement accuracy and extending the service life of the sensor.

[0007] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0008] The utility model provides an air chamber cooling device for an air quality monitoring system sensor, comprising: a heat insulating member, a heat dissipation mechanism, an electronic refrigeration mechanism, a controller, a temperature detection mechanism, and an air chamber;

[0009] The heat insulating member is arranged on the air chamber to ensure the temperature difference between the inside and the outside of the air chamber;

[0010] The cold end of the electronic refrigeration mechanism is connected to the outer wall of the air chamber, and the hot end of the electronic refrigeration mechanism is connected to the heat dissipation mechanism;

[0011] The temperature detection mechanism is arranged on the air chamber, and is used to measure the temperature of the air chamber and transmit the temperature information to the controller;

[0012] The corresponding ends of the controller are electrically connected to the corresponding ends of the temperature detection mechanism, the heat dissipation mechanism, and the electronic refrigeration mechanism, respectively, and are used to control the opening and closing of the electronic refrigeration mechanism and the heat dissipation mechanism according to the temperature information transmitted by the temperature detection mechanism.

[0013] Preferably, an air chamber air inlet is opened on one side of the air chamber, and an air chamber air outlet is opened on the other side, and the temperature detection mechanism is placed between the air chamber air inlet and the air chamber air outlet.

[0014] Preferably, the temperature detection mechanism is arranged in the middle of the air chamber.

[0015] Preferably, the air chamber is made of a metal material with good thermal conductivity.

[0016] Preferably, the heat insulating member is arranged at the top opening of the air chamber.

[0017] Preferably, the thermal insulation member is configured as thermal insulation cotton, a window is provided in the middle of the thermal insulation cotton, and the electronic refrigeration mechanism is placed at the window.

[0018] Preferably, the controller is connected to the heat dissipation mechanism and the electronic refrigeration mechanism respectively through connecting lines, and the controller is connected to the temperature detection mechanism through a signal line.

[0019] Preferably, the heat dissipation mechanism is configured as a radiator, the electronic refrigeration mechanism is configured as an electronic refrigeration sheet, and the temperature detection mechanism is configured as a temperature sensor.

[0020] Preferably, the connection between the hot end of the electronic refrigeration plate and the radiator is also filled with heat dissipation silicone grease.

[0021] The technical solution of the utility model has the following beneficial effects:

[0022] The utility model adopts an electronic refrigeration method to reduce the temperature of the air chamber in a high temperature environment. The device is equipped with a temperature sensor and a controller, which can detect the temperature of the air chamber and determine the start or stop of the electronic refrigeration according to the set temperature, so that the sensor is always at the optimal working temperature, thereby improving the measurement accuracy and extending the service life of the sensor.

[0023] The utility model adopts active cooling technology, with fast cooling speed and little influence from the environment; the temperature in the air chamber is stable and fluctuates little, and can be controlled at a maximum of ±1°C (within the adjustable temperature range) of the set temperature; it uses electronic refrigeration and has the advantages of no noise, no wear, no leakage, small size, long life and high reliability.

[0024] The heat-insulating member designed in the utility model is arranged on the air chamber to play the role of heat preservation and insulation, and is used to ensure the temperature difference between the inside and the outside of the air chamber; the gap between the hot end of the electronic refrigeration plate and the radiator is filled with heat-dissipating silicone grease to ensure the heat dissipation effect; the design of the radiator can quickly dissipate the heat on the electronic refrigeration plate; the temperature sensor is used to measure the temperature of the air chamber and transmit the temperature information to the controller; the controller is used to control the opening and closing of the electronic refrigeration plate and the radiator according to the temperature information transmitted by the temperature sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0026] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 . DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present invention, unless otherwise expressly specified or limited, a first feature is “on” or “below” a second feature.

[0032] “Under” may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature being “above”, “above”, and “above” the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being “under”, “below”, and “below” the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] Reference Figure 1 to Figure 2 The utility model provides an air chamber cooling device for an air quality monitoring system sensor, comprising: a heat insulating member 1, a heat dissipation mechanism 2, an electronic refrigeration mechanism 3, a controller 4, a temperature detection mechanism 5, and an air chamber 6;

[0034] The heat insulating member 1 is arranged on the air chamber 6 to play a role of heat preservation and heat insulation, and is used to ensure the temperature difference between the inside and outside of the air chamber 6;

[0035] The cold end of the electronic refrigeration mechanism 3 is connected to the metal outer wall of the air chamber 6, and the hot end of the electronic refrigeration mechanism 3 is connected to the heat dissipation mechanism 2. Heat dissipation silicone grease is used to fill the gap at the connection to ensure the heat dissipation effect; the design of the heat dissipation mechanism 2 can quickly dissipate the heat on the electronic refrigeration mechanism 3; the heat dissipation mechanism 2 is set as a radiator, and the electronic refrigeration mechanism 3 is set as an electronic refrigeration sheet.

[0036] The temperature detection mechanism 5 is arranged on the air chamber, and is used to measure the temperature of the air chamber 6 and transmit the temperature information to the controller;

[0037] The corresponding ends of the controller 4 are electrically connected to the corresponding ends of the temperature detection mechanism 5, the heat dissipation mechanism 2, and the electronic refrigeration mechanism 3, respectively, and are used to control the opening and closing of the electronic refrigeration mechanism 3 and the heat dissipation mechanism 2 according to the temperature information transmitted by the temperature detection mechanism 5; the controller 4 is connected to the heat dissipation mechanism 2 and the electronic refrigeration mechanism 3 respectively through the connecting line 401, and the controller is connected to the temperature detection mechanism through the temperature sensor signal line 402.

[0038] Furthermore, the air chamber 6 is provided with an air chamber air inlet 601 on one side and an air chamber air outlet 602 on the other side, and the temperature detection mechanism 5 is placed between the air chamber air inlet 601 and the air chamber air outlet 602. The temperature detection mechanism 5 is arranged in the middle of the air chamber, so that the gas entering from the air chamber air inlet 601 can be well detected. The temperature detection mechanism 5 is set as a temperature sensor. The air chamber 6 is made of a metal material with good thermal conductivity, usually assembled from an upper cover and a lower cover, and is provided with an air chamber air inlet 601 and an air chamber air outlet 602, and one or more temperature sensors are installed therein. The gas to be inspected enters from the air chamber air inlet 601, flows through each temperature sensor and is discharged from the air chamber air outlet 602. The temperature sensor sends the detected temperature information to the controller 4, and the controller 4 controls the opening and closing of the electronic refrigeration mechanism 3 and the heat dissipation mechanism 2 according to the temperature information. The insulating member 1 is arranged at the top opening of the air chamber 6. The insulating member is set as insulating cotton to play a role of heat preservation and heat insulation to ensure the temperature difference between the inside and outside of the air chamber 6. A window is opened in the middle of the insulating cotton, and the electronic refrigeration mechanism 3 is placed at the window.

[0039] Working principle of this utility model:

[0040] During operation, the temperature sensor transmits the measured temperature information in the air chamber 6 to the controller 4, and the controller 4 determines the opening and closing of the electronic refrigeration plate and the radiator according to the temperature setting value to control the temperature of the air chamber 6 within the setting range.

[0041] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. An air chamber cooling device for an air quality monitoring system sensor, characterized in that: include: A heat insulating member (1), a heat dissipation mechanism (2), an electronic refrigeration mechanism (3), a controller (4), a temperature detection mechanism (5), and an air chamber (6); The heat insulating member (1) is arranged on the air chamber (6) to ensure the temperature difference between the inside and outside of the air chamber (6); The cold end of the electronic refrigeration mechanism (3) is connected to the outer wall of the air chamber (6), and the hot end of the electronic refrigeration mechanism is connected to the heat dissipation mechanism (2); The temperature detection mechanism (5) is arranged on the air chamber and is used to measure the temperature of the air chamber (6) and transmit the temperature information to the controller; The corresponding ends of the controller (4) are electrically connected to the corresponding ends of the temperature detection mechanism (5), the heat dissipation mechanism (2), and the electronic refrigeration mechanism (3), respectively, and are used to control the opening and closing of the electronic refrigeration mechanism (3) and the heat dissipation mechanism (2) according to the temperature information transmitted by the temperature detection mechanism (5).

2. The air chamber cooling device for air quality monitoring system sensor according to claim 1, characterized in that: The air chamber (6) is provided with an air chamber air inlet on one side and an air chamber air outlet on the other side, and the temperature detection mechanism (5) is disposed between the air chamber air inlet and the air chamber air outlet.

3. The air chamber cooling device for the air quality monitoring system sensor according to claim 2, characterized in that: The temperature detection mechanism (5) is arranged in the middle of the air chamber.

4. The air chamber cooling device for air quality monitoring system sensor according to claim 2, characterized in that: The air chamber (6) is made of a metal material with heat-conducting properties.

5. The air chamber cooling device for the air quality monitoring system sensor according to claim 4, characterized in that: The heat insulating member (1) is arranged at the top opening of the air chamber (6).

6. The air chamber cooling device for air quality monitoring system sensor according to claim 5, characterized in that: The heat insulating member is configured as heat insulating cotton, a window is provided in the middle of the heat insulating cotton, and the electronic refrigeration mechanism (3) is arranged at the window.

7. The air chamber cooling device for air quality monitoring system sensor according to claim 6, characterized in that: The controller (4) is connected to the heat dissipation mechanism (2) and the electronic refrigeration mechanism (3) respectively via connecting wires, and the controller is connected to the temperature detection mechanism via a signal wire.

8. The air chamber cooling device for air quality monitoring system sensor according to claim 7, characterized in that: The heat dissipation mechanism (2) is configured as a radiator, the electronic refrigeration mechanism (3) is configured as an electronic refrigeration sheet, and the temperature detection mechanism (5) is configured as a temperature sensor.

9. The air chamber cooling device for air quality monitoring system sensor according to claim 8, characterized in that: The connection between the hot end of the electronic refrigeration plate and the radiator is also filled with heat dissipation silicone grease.

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