CN209978961U

CN209978961U - Air temperature detection device

Info

Publication number: CN209978961U
Application number: CN201921065488.0U
Authority: CN
Inventors: 苏和; 王海龙; 袁永生; 温家利
Original assignee: Core Huaxia (beijing) Polytron Technologies Inc
Current assignee: Core Huaxia (beijing) Polytron Technologies Inc
Priority date: 2019-07-09
Filing date: 2019-07-09
Publication date: 2020-01-21
Anticipated expiration: 2029-07-09

Abstract

The embodiment of the utility model discloses air temperature detection device relates to the temperature detection technology field. Including temperature sensor, sunshade and ventilation mechanism, the sunshade cover is established temperature sensor's upside or all around, the sunshade shelters from the sunshine of penetrating temperature sensor directly, ventilation mechanism sets up one side at least around temperature sensor, and ventilation mechanism promotes the air current circulation around the temperature sensor. The sun shade can be used for preventing the sensor from being directly irradiated by sunlight between 9:00 a.m. and 15:00 a.m., so that the temperature measurement is accurate. The ventilation mechanism pushes the ambient air to flow, so that the ambient air of the sensor is rapidly exchanged and fused with the ambient air, the ambient temperature is kept constant, and the purpose of accurately measuring the temperature is achieved.

Description

Air temperature detection device

Technical Field

The embodiment of the utility model provides an embodiment relates to temperature technical field, concretely relates to air temperature detection device.

Background

Agricultural greenhouse, poultry, domestic animal are bred to house and are raised and store in a warehouse storehouse and all need carry out air temperature humidity and detect to guarantee suitable humiture, avoid livestock, plant to be sick, perhaps the product is impaired.

The existing temperature and humidity detection is that sensors are installed in agricultural greenhouses, poultry and livestock breeding barn feeding and storage storehouses, however, under the condition of direct solar radiation, a temperature measuring sensor of a thermometer is heated by solar radiation. The measured temperature is higher than the ambient air temperature. The purpose of accurately measuring the ambient air temperature cannot be achieved. In environments with poor air flow, particularly in agricultural greenhouses. Air around the traditional structure thermometer can not be exchanged with most air of the environment efficiently, a high-temperature small environment is formed around the thermometer, and the measured temperature is higher than the average air temperature of the environment.

Disclosure of Invention

Therefore, the embodiment of the utility model provides an air temperature detection device to solve among the prior art because the sensor receives the unsafe problem of measurement that sunlight and ambient air temperature lead to above the average temperature of environment.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:

according to the utility model discloses an in the first aspect, this air temperature detection device includes temperature sensor, sunshade and ventilation mechanism, the sunshade cover is established temperature sensor's upside is perhaps all around, the sunshade covers the sunshine of shining directly temperature sensor, ventilation mechanism sets up one side at least around temperature sensor, and ventilation mechanism promotes the air current circulation around the temperature sensor.

Furthermore, the sunshade is the toper that the diameter is crescent from top to bottom, temperature sensor fixes at the sunshade lower part inboard.

Further, ventilation mechanism include fan and sensor stationary cage, temperature sensor fixes in the sensor stationary cage, and the fan is fixed in the downside of sensor stationary cage.

Furthermore, the sensor fixing cage is formed by butt joint of two cage bodies; the fan is positioned on the lower side of the plane where the lower edge of the sunshade cover is positioned.

Furthermore, a mainboard bin is fixed on the upper side of the sunshade, and a control mainboard connected with a temperature sensor is arranged in the mainboard bin.

Furthermore, the middle part of the control main board is provided with a heat insulation groove, a chip fixing plate for fixing a controller chip is arranged in the heat insulation groove, and the chip fixing plate is fixedly connected with the control main board through a connecting plate. The periphery of the chip is hollowed out, so that heat conduction from the equipment main body is reduced.

Furthermore, the thickness of the control main plate is 0.8-1.2 mm.

Furthermore, the upper side of the bin cover on the upper side of the main board bin is provided with a hanging hole.

Furthermore, the ventilation mechanism connect rechargeable lithium battery, rechargeable lithium battery is connected with solar panel, be equipped with the switching circuit who detects solar panel output voltage between rechargeable lithium battery and the ventilation mechanism. In order to prolong the service life of the fan and achieve the aim of energy conservation. Judging whether the equipment is directly irradiated by strong sunlight or not through the output voltage of the solar panel, if the output voltage of the solar panel is more than 1V, indicating that the illumination is strong, and enabling the fan to work before collecting the temperature and the humidity; if solar panel output voltage is less than 1V, it indicates that illumination is weaker, and the sunshine radiation does not have an influence to the sensor, and the fan need not work before gathering the humiture.

Further, the switch circuit comprises a triode Q8 and a field effect transistor U11, the output end of the rechargeable lithium battery is connected with the grid electrode of the field effect transistor U11 through the triode Q8, and the drain electrode and the source electrode of the field effect transistor U11 are connected between the rechargeable lithium battery and the ventilation mechanism.

The embodiment of the utility model provides a have following advantage:

the embodiment of the utility model provides an utilize the sunshade can avoid the sensor to be penetrated directly by sunshine between 9:00 in the morning to 15:00 in the afternoon, guarantee that the temperature measurement is accurate. The ventilation mechanism pushes the ambient air to flow, so that the ambient air of the sensor is rapidly exchanged and fused with the ambient air, the ambient temperature is kept constant, and the purpose of accurately measuring the temperature is achieved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a schematic perspective view of an air temperature detection device provided in embodiment 1 of the present invention;

fig. 2 is a front view of an air temperature detection device provided in embodiment 1 of the present invention;

fig. 3 is a schematic structural diagram of a control motherboard according to embodiment 1 of the present invention;

fig. 4 is a charging circuit diagram of a solar panel according to embodiment 1 of the present invention;

fig. 5 is a fan drive circuit according to embodiment 1 of the present invention;

in the figure: 1-mainboard bin 2-sunshade 3-sensor fixing cage 4-fan 5-temperature sensor 6-bin cover 7-hitching hole 8-control mainboard 9-heat insulation groove 10-chip fixing plate 11-connecting plate.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered to be the scope of the present invention without substantial changes in the technical content.

Referring to fig. 1-2, the air temperature detection device comprises a temperature sensor 5, a sun shade 2 and a ventilation mechanism, wherein the sun shade 2 is covered on the upper side of the temperature sensor 5, the sun shade 2 shields sunlight directly irradiating the temperature sensor 5, the ventilation mechanism is arranged on at least one side of the periphery of the temperature sensor 5, and the ventilation mechanism pushes airflow circulation around the temperature sensor 5. The temperature sensor 5 in this embodiment may be a temperature and humidity sensor capable of detecting temperature and humidity at the same time.

The sunshade 2 is a cone with the diameter gradually increasing from top to bottom, and the temperature sensor 5 is fixed on the inner side of the lower part of the sunshade 2. The device adopts the umbrella-shaped sun hat, can avoid temperature sensor 5 to be penetrated by sunshine directly between 9:00 in the morning and 15:00 in the afternoon, guarantees that the temperature measurement is accurate. The solar altitude angles at different moments are different at the same place; the solar altitude at different locations at the same time is also different. At the same time in the northern hemisphere, the greater the geographic latitude, the smaller the solar altitude. In one day, the sun angle is increased from zero to the maximum in the current day from sunrise to noon, and the sun angle is decreased from the maximum in the current day to zero from noon to sunset; in one year, the sun angle is the smallest in winter solstice. The method is combined with the use scene of the product, and repeated tests and improvements are carried out under different experimental conditions through precise measurement and calculation. Finally, the sunshade 2 is conical in the radiation protection cover, and the umbrella cap of the radiation protection cover diffuses downwards.

The upper side of the sunshade 2 is fixed with a mainboard bin 1, and a control mainboard 8 connected with a temperature sensor 5 is arranged in the mainboard bin 1. The upper side of the cover 6 on the upper side of the main board bin 1 is provided with a hanging hole 7. The device can be fixed at the position needing temperature measurement through the hanging hole 7, and the device is convenient to place.

The ventilation mechanism of this embodiment includes a fan 4 and a sensor fixing cage 3, a temperature sensor 5 is fixed in the sensor fixing cage 3, and the fan 4 is fixed on the lower side of the sensor fixing cage 3. The sensor fixing cage 3 is formed by butt joint of two cage bodies; the fan 4 is positioned on the lower side of the plane where the lower edge of the sunshade 2 is positioned, and the smooth air circulation in the horizontal direction is ensured.

Referring to fig. 3, a heat insulation groove 9 is formed in the middle of the control main board 8, a chip fixing plate 10 for fixing a controller chip is disposed in the heat insulation groove 9, and the chip fixing plate 10 is fixedly connected to the control main board 8 through a connecting plate 11. The periphery of the chip is hollowed out, so that heat conduction from the equipment main body is reduced. The thickness of the control mainboard 8 is 0.8-1.2 mm, and preferably, the control mainboard 8 adopts a 1mm ultrathin plate.

The fan 4 is connected with a rechargeable lithium battery (not shown in the figure), the rechargeable lithium battery is connected with a solar panel (not shown in the figure), and a switch circuit for detecting the output voltage of the solar panel is arranged between the rechargeable lithium battery and the fan 4. In order to prolong the service life of the fan 4 and achieve the aim of energy conservation. Judging whether the equipment is directly irradiated by strong sunlight or not through the output voltage of the solar panel, if the output voltage of the solar panel is more than 1V, indicating that the illumination is strong, and working the fan 4 before collecting the temperature and humidity; if solar panel output voltage is less than 1V, it indicates that illumination is weaker, and the sunshine radiation does not have an influence to the sensor, and fan 4 need not work before gathering the humiture.

Referring to fig. 4-5, the solar panel and the rechargeable lithium battery are respectively connected to the controller U4, the solar panel charges the rechargeable lithium battery, the rechargeable lithium battery can be connected to other chargers, and the solar panel has a secondary function of monitoring the intensity of light. The switch circuit comprises a triode Q8 and a field effect transistor U11, the output end of the rechargeable lithium battery is connected with the grid electrode of the field effect transistor U11 through a triode Q8, and the drain electrode and the source electrode of the field effect transistor U11 are connected between the rechargeable lithium battery and the fan 4. If the output voltage of the solar panel is greater than 1V, the illumination is strong, at the moment, the triode Q8 is conducted, the grid electrode inputs high level, and the source electrode and the drain electrode are conducted, so that the rechargeable lithium battery supplies power to the fan 4, and the fan 4 can work before collecting temperature and humidity; if the output voltage of the solar panel is less than 1V, the illumination is weak, the triode Q8 is not conducted, the grid input is low level, the source electrode and the drain electrode are not conducted, the rechargeable lithium battery does not supply power for the fan 4, the sunlight radiation does not affect the sensor, and the fan 4 does not need to work before collecting the temperature and humidity.

The embodiment of the utility model provides an utilize sunshade 2 can avoid the sensor to be penetrated directly by sunshine between 9:00 in the morning to 15:00 in the afternoon, guarantee that the temperature measurement is accurate. The fan 4 pushes the surrounding air to flow, so that the surrounding air of the sensor is rapidly exchanged and fused with the air in the environment, the temperature of the sensor is kept constant, and the purpose of accurately measuring the temperature is achieved.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. An air temperature detection device, characterized in that: air temperature detection device include temperature sensor (5), sunshade (2) and ventilation mechanism, sunshade (2) cover is established the upside of temperature sensor (5) or around, sunshade (2) shelter from the sunshine of penetrating temperature sensor (5) directly, ventilation mechanism sets up at least one side around temperature sensor (5), and ventilation mechanism promotes the air current circulation around temperature sensor (5).

2. The air temperature detection device according to claim 1, characterized in that: the sunshade (2) is a cone with the diameter gradually increasing from top to bottom, and the temperature sensor (5) is fixed on the inner side of the lower part of the sunshade (2).

3. The air temperature detection device according to claim 1, characterized in that: ventilation mechanism include fan (4) and sensor stationary cage (3), temperature sensor (5) are fixed in sensor stationary cage (3), fan (4) are fixed in the downside of sensor stationary cage (3).

4. The air temperature detection device according to claim 3, characterized in that: the sensor fixing cage (3) is formed by butting two cage bodies; the fan (4) is positioned on the lower side of the plane where the lower edge of the sunshade (2) is positioned.

5. The air temperature detection device according to claim 1, characterized in that: the upper side of the sunshade (2) is fixed with a mainboard bin (1), and a control mainboard (8) connected with a temperature sensor (5) is arranged in the mainboard bin (1).

6. The air temperature detection device according to claim 5, characterized in that: the controller is characterized in that a heat insulation groove (9) is formed in the middle of the control main board (8), a chip fixing plate (10) used for fixing a controller chip is arranged in the heat insulation groove (9), and the chip fixing plate (10) is fixedly connected with the control main board (8) through a connecting plate (11).

7. The air temperature detection device according to claim 5 or 6, characterized in that: the thickness of the control main board (8) is 0.8-1.2 mm.

8. The air temperature detection device according to claim 5, characterized in that: the upper side of the bin cover (6) on the upper side of the main board bin (1) is provided with a hanging hole (7).

9. The air temperature detection device according to claim 1, characterized in that: the ventilation mechanism connect rechargeable lithium cell, rechargeable lithium cell is connected with solar panel, be equipped with the switching circuit who detects solar panel output voltage between rechargeable lithium cell and the ventilation mechanism.

10. The air temperature detection device according to claim 9, characterized in that: the switch circuit comprises a triode Q8 and a field effect transistor U11, the output end of the rechargeable lithium battery is connected with the grid electrode of the field effect transistor U11 through a triode Q8, and the drain electrode and the source electrode of the field effect transistor U11 are connected between the rechargeable lithium battery and the ventilation mechanism.