Pneumatic detection device, air supply tail end device, air treatment system and air conveying device

Abstract

The utility model discloses a pneumatic detection device, an air supply tail end device, an air processing system and a gas conveying device, and relates to the technical field of pneumatic detection, and the pneumatic detection device comprises a first thermistor and a second thermistor which are connected in series, the ratio of the resistance values of the first thermistor and the second thermistor is the same as the ratio of the change degree of the first thermistor along with the temperature to the change degree of the second thermistor along with the temperature; the first thermistor is arranged in a first area of the first air duct, the second thermistor is arranged in a second area, and the first area is different from the second area; first preset voltage is applied to two ends of the first thermistor and the second thermistor which are connected in series; and the acquisition control module is electrically connected with the first thermistor and the second thermistor so as to acquire voltage between the first thermistor and the second thermistor to obtain sampling voltage. According to the invention, the problem of inaccurate pneumatic detection caused by the change of the environment temperature can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic detection, in particular to a pneumatic detection device, an air supply terminal device, an air processing system and a gas conveying device. Background Art

[0002] Wind motion detection devices are required in many devices. For example, it is necessary to detect whether there is wind in a certain flow channel, so that when there is wind, the corresponding device needs to perform some operations, or when there is no wind, the corresponding device needs to perform some operations. There are many different types of wind motion detection devices, which can detect wind motion according to different principles. For example, some wind motion detection devices determine the wind speed or whether there is wind motion by detecting pressure, some wind motion detection devices detect whether a rotating part that can be rotated after being blown by wind rotates or the number of turns to determine whether there is wind motion or wind speed, and some wind motion detection devices detect whether there is wind motion by the change in resistance caused by the temperature change of thermistor after being blown by wind. This type of wind motion detection device has the advantages of small size and low cost. However, since this type of wind motion detection device detects whether there is wind motion by the change in resistance caused by the temperature change of thermistor after being blown by wind. When the ambient temperature changes greatly, even if there is no wind blowing near the thermistor, its temperature will change greatly and cause the resistance to change, which will cause false detection of wind motion. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the embodiments of the utility model is to provide a wind movement detection device, an air supply terminal device, an air treatment system and a gas delivery device, which can solve the problem of inaccurate wind movement detection caused by changes in ambient temperature.

[0004] The specific technical solution of the embodiment of the utility model is:

[0005] A wind motion detection device, the wind motion detection device comprising:

[0006] A first thermistor and a second thermistor connected in series, wherein a ratio of the resistance values ​​of the first thermistor and the second thermistor under the same conditions is the same as a ratio of a degree of change of the first thermistor with temperature to a degree of change of the second thermistor with temperature; the first thermistor is used to be arranged in a first area, the first area is a first air duct, and the second thermistor is used to be arranged in a second area, the first area is different from the second area; a first preset voltage is applied to both ends of the first thermistor and the second thermistor connected in series;

[0007] An acquisition control module is electrically connected to the first thermistor and the second thermistor to acquire a voltage between the first thermistor and the second thermistor to obtain a sampled voltage. The acquisition control module is used to be electrically connected to a functional module and control the functional module based on the sampled voltage.

[0008] Preferably, the first thermistor and the second thermistor are the same thermistor.

[0009] Preferably, the functional module is a power module, and the acquisition control module is used to supply power to the functional module, and to perform switch control on the power supply of the functional module based on the sampled voltage.

[0010] Preferably, the functional modules include at least one of the following: a negative ion generating module, a fragrance module, a sterilization module, a dust removal module, and a fan module.

[0011] Preferably, the acquisition control module includes: an acquisition judgment module and a switch circuit module;

[0012] The collection and judgment module comprises:

[0013] A first resistor and a second resistor connected in series, wherein the ratio of the resistance values ​​of the first resistor and the second resistor is the same as the ratio of the resistance values ​​of the first thermistor and the second thermistor under the same conditions; a first preset voltage is applied to both ends of the first resistor and the second resistor connected in series; a comparator, wherein a first input end of the comparator is electrically connected to the first thermistor and the second thermistor, and a second input end of the comparator is electrically connected to the first resistor and the second resistor;

[0014] The switch circuit module is electrically connected to the output end of the comparator, and is used to supply power to the functional module, and to perform switch control on the power supply of the functional module based on a signal output from the output end of the comparator.

[0015] Preferably, the first thermistor is flat; and / or the second thermistor is flat.

[0016] Preferably, the second area is a second air duct.

[0017] Preferably, the second area is a non-air duct area.

[0018] An air supply terminal device, the air supply terminal device comprising:

[0019] a housing, wherein the housing forms a first air duct for supplying air;

[0020] As any of the above-mentioned wind motion detection devices, the first thermistor is arranged in the first air duct, and the second thermistor is arranged outside the housing;

[0021] The functional module is electrically connected to the acquisition control module.

[0022] Preferably, the functional module includes a negative ion generating module, the acquisition control module includes an acquisition judgment module, a switching circuit module electrically connected to the acquisition judgment module, and a transformer module electrically connected to the switching circuit module, the transformer module is electrically connected to the negative ion generating module to provide high voltage electricity to the negative ion generating module; the acquisition judgment module is used to acquire the voltage between the first thermistor and the second thermistor to obtain a sampling voltage, and output a signal to the switching circuit module according to the sampling voltage; the switching circuit module is used to power the transformer module, and perform switch control on the power supply of the transformer module based on the signal.

[0023] Preferably, the wind movement detection device is used to determine whether there is airflow in the first air duct based on the sampled voltage, so as to control whether the functional module is running.

[0024] Preferably, the wind movement detection device controls the air supply terminal device to have a first state and a second state;

[0025] In the first state, the wind motion detection device detects that there is airflow in the first air duct, and the functional module is in an on state;

[0026] In the second state, the airflow detection unit detects that there is no airflow in the first air duct, and the functional module is in a closed state.

[0027] Preferably, the wind movement detection device controls the air supply terminal device to have a first state and a second state;

[0028] In the first state, the wind motion detection device detects that there is airflow in the first air duct, and the functional module is in a closed state;

[0029] In the second state, the airflow detection unit detects that there is no airflow in the first air duct, and the functional module is in an on state.

[0030] Preferably, the air supply terminal device is used for one of the following devices: a fresh air system, an air conditioning system, a five-constant system with constant temperature, constant humidity, constant oxygen, constant cleanliness and constant quietness.

[0031] An air treatment system comprises any of the air supply terminal devices described above.

[0032] A gas delivery device, comprising:

[0033] A first air duct; a first regulating module for regulating the gas flow rate of the first air duct;

[0034] A second air duct; a second regulating module for regulating the gas flow rate of the second air duct;

[0035] As in any of the above-mentioned wind movement detection devices, the first thermistor is arranged in the first air duct, and the second thermistor is arranged in the second air duct. The wind movement detection device is electrically or communicatively connected to the first adjustment module and the second adjustment module, and the wind movement detection device is used to control the first adjustment module and / or the second adjustment module based on the sampling voltage.

[0036] Preferably, the wind motion detection device is used to control the first regulating module and / or the second regulating module based on the sampling voltage to control the gas flow rate flowing through the first air duct to be basically the same as the gas flow rate flowing through the second air duct.

[0037] Preferably, the postures of the first thermistor disposed in the first air duct and the second thermistor disposed in the second air duct are consistent with respect to the gas flow direction.

[0038] The technical solution of the utility model has the following significant beneficial effects:

[0039] 1. When the first thermistor is set in the first area, the first area is the first air duct, the second thermistor is set in the second area, and the first area is different from the second area, if gas flow occurs in the first air duct, the heat dissipation of the first thermistor is accelerated, the temperature of the first thermistor decreases, and the resistance value changes accordingly. Therefore, the sampling voltage collected by the acquisition control module will change, and the acquisition control module can judge whether there is gas flow in the first air duct based on the sampling voltage, thereby controlling the functional module. Since the ratio of the resistance values ​​of the first thermistor and the second thermistor is the same as the ratio of the degree of change of the first thermistor with temperature and the degree of change of the second thermistor with temperature under the same conditions, therefore, when the overall ambient temperature changes, the ratio of the degree of change of the first thermistor and the second thermistor with temperature is the same as the ratio of the resistance values ​​of the first thermistor and the second thermistor, which will cause the sampling voltage collected by the acquisition control module to remain unchanged, so that the acquisition control module can still accurately judge whether there is gas flow in the first air duct based on the sampling voltage, and there will be no misjudgment.

[0040] 2. When the second area is the second air duct, at this time, if the gas flow speed in the first air duct is not equal to the gas flow speed in the second air duct, then the heat dissipation speeds of the first thermistor and the first thermistor are different, and the ratio of the degree of change of the resistance value of the first thermistor to the degree of change of the resistance value of the second thermistor is different from the ratio of the resistance values ​​of the first thermistor and the second thermistor, which will cause the sampling voltage collected by the acquisition control module to change. In this way, the acquisition control module can determine that the gas flow speed of the first air duct is not equal to the gas flow speed of the second air duct based on the sampling voltage.

[0041] With reference to the following description and drawings, specific embodiments of the present invention are disclosed in detail, indicating the manner in which the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope. Features described and / or shown for one embodiment can be used in one or more other embodiments in the same or similar manner, combined with features in other embodiments, or replace features in other embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the components in the drawings are only for illustration purposes to help understand the present invention, and are not intended to specifically limit the shapes and proportional dimensions of the components of the present invention. Under the guidance of the present invention, those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to specific circumstances.

[0043] Figure 1 This is a schematic diagram of the structure of the wind motion detection device in the embodiment of the utility model;

[0044] Figure 2 It is a structural schematic diagram of a wind motion detection device with a collection control module in an embodiment of the utility model;

[0045] Figure 3 This is a schematic diagram of the structure of the air supply terminal device in the embodiment of the utility model;

[0046] Figure 4 It is a schematic diagram of the structure of the gas delivery device in the embodiment of the utility model.

[0047] Reference numerals in the above drawings:

[0048] 1. First thermistor; 2. Second thermistor; 3. Collection control module; 31. Collection judgment module; 311. First resistor; 312. Second resistor; 313. Comparator; 32. Switch circuit module; 100. Air supply terminal device; 1001. Shell; 10011. First air duct; 1002. Functional module; 1003. Wind movement detection device; 200. Gas delivery device; 2001. Second air duct; 2002. First adjustment module; 2003. Second adjustment module. DETAILED DESCRIPTION

[0049] In combination with the accompanying drawings and the description of the specific embodiments of the present invention, the details of the present invention can be more clearly understood. However, the specific embodiments of the present invention described herein are only used to explain the purpose of the present invention and cannot be understood as limiting the present invention in any way. Under the guidance of the present invention, technicians can conceive of any possible variations based on the present invention, which should be regarded as belonging to the scope of the present invention. It should be noted that when an element is referred to as "disposed on" another element, it can be directly on the other element or there can also be a central element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be a central element at the same time. The terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation method.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0051] In order to solve the problem of inaccurate wind movement detection caused by changes in ambient temperature, a wind movement detection device is proposed in the embodiment of the present application. Figure 1 Schematic diagram of the structure of the wind detection device in the embodiment of the utility model, as shown in Figure 1 As shown, the wind detection device may include: a first thermistor 1 and a second thermistor 2 connected in series, and a collection control module 3.

[0052] Wherein, under the same conditions, the ratio of the resistance values ​​of the first thermistor 1 to the second thermistor 2 is the same as the ratio of the degree of change of the first thermistor 1 with temperature to the degree of change of the second thermistor 2 with temperature.

[0053] The first thermistor 1 is used to be set in the first area, and the first area can be the first air duct 10011. The second thermistor 2 is used to be set in the second area, and the first area is different from the second area. As a feasible method, the second area can be a non-air duct area, for example, an area other than the first air duct 10011. At this time, the wind movement detection device can detect whether there is wind movement in the first air duct 10011 through the first thermistor 1.

[0054] The second area may be the second air duct 2001. When the first area is the first air duct 10011 and the second area is the second air duct 2001, the wind motion detection device may detect whether the air flow speeds in the first air duct 10011 and the second air duct 2001 are substantially equal through the first thermistor 1 and the second thermistor 2.

[0055] A first preset voltage is applied to both ends of the first thermistor 1 and the second thermistor 2 connected in series, so as to supply power to the first thermistor 1 and the second thermistor 2. On the one hand, the acquisition control module 3 can acquire the voltage between the first thermistor 1 and the second thermistor 2, and on the other hand, the first thermistor 1 and the second thermistor 2 can generate heat so that the temperature of both is higher than the ambient temperature. In this way, when there is wind in the first air duct 10011, the heat dissipation of the first thermistor 1 will be accelerated, the temperature of the first thermistor 1 will drop, and the resistance value will change accordingly.

[0056] As a feasible method, the first thermistor 1 and the second thermistor 2 may be the same thermistor, so that the first thermistor 1 and the second thermistor 2 that meet the requirements can be conveniently selected.

[0057] The acquisition control module 3 is electrically connected to the first thermistor 1 and the second thermistor 2 to acquire the voltage between the first thermistor 1 and the second thermistor 2 to obtain a sampled voltage. The acquisition control module 3 is used to be electrically connected to the functional module 1002 and control the functional module 1002 based on the sampled voltage.

[0058] For example, the functional module 1002 can be various types of power modules. For example, the functional module 1002 can include at least one of the following: a negative ion generation module, a fragrance module, a sterilization module, a dust removal module, a fan module, etc. The acquisition control module 3 is used to power the functional module 1002 and perform switch control on the power supply of the functional module 1002 based on the sampled voltage.

[0059] As a feasible method, the first thermistor 1 can be flat. Similarly, the second thermistor 2 can also be flat. The above method can effectively increase the surface area of ​​the thermistor, so that when there is wind movement near the thermistor, the thermistor is more likely to experience temperature drop, the resistance value is more likely to change, and the sampled voltage collected by the acquisition control module 3 is more likely to change.

[0060] When the first thermistor 1 is set in the first area, the first area is the first air duct 10011, and the second thermistor 2 is set in the second area, and the first area is different from the second area, if there is gas flow in the first air duct 10011, the heat dissipation of the first thermistor 1 is accelerated, the temperature of the first thermistor 1 decreases, and the resistance value changes accordingly. Therefore, the sampling voltage collected by the acquisition control module 3 will change, and the acquisition control module 3 can determine whether there is gas flow in the first air duct 10011 based on the sampling voltage, thereby controlling the functional module 1002. Since the first thermistor 1 and the second thermistor 2 are used in series, the sampling voltage obtained from the connection point of the first thermistor 1 and the second thermistor 2 is related to the ratio of the resistance values ​​of the first thermistor 1 and the second thermistor 2. Under the same conditions, the ratio of the resistance values ​​of the first thermistor 1 and the second thermistor 2 is the same as the ratio of the degree of change of the first thermistor 1 with temperature and the degree of change of the second thermistor 2 with temperature. Therefore, when the overall ambient temperature changes, the second thermistor 2 located in the second area can compensate for the resistance change of the first thermistor 1 caused by the temperature, that is, the resistance changes at the same ratio as the first thermistor 1, so that the resistance ratio remains unchanged. Therefore, the sampling voltage obtained by the acquisition control module 3 from the connection between the first thermistor 1 and the second thermistor 2 remains unchanged. In this way, the acquisition control module 3 can still accurately determine whether there is gas flow in the first air duct 10011 based on the sampling voltage, and no misjudgment will occur.

[0061] In addition, if the second area is the second air duct 2001, at this time, if the gas flow speed in the first air duct 10011 is not equal to the gas flow speed in the second air duct 2001, then the heat dissipation speeds of the first thermistor 1 and the first thermistor 1 are different, and the ratio of the degree of change of the resistance value of the first thermistor 1 to the degree of change of the resistance value of the second thermistor 2 is different from the ratio of the resistance values ​​of the first thermistor 1 and the second thermistor 2, which will cause the sampling voltage collected by the acquisition control module 3 to change. In this way, the acquisition control module 3 can determine that the gas flow speed of the first air duct 10011 is not equal to the gas flow speed of the second air duct 2001 based on the sampling voltage.

[0062] As feasible, Figure 2 FIG. 1 is a schematic diagram of the structure of a wind motion detection device having a collection control module in an embodiment of the utility model. Figure 2 As shown, the acquisition control module 3 may include: an acquisition judgment module 31 and a switch circuit module 32. Among them, the acquisition judgment module 31 may include: a first resistor 311 and a second resistor 312 connected in series, and a comparator 313. The ratio of the resistance values ​​of the first resistor 311 and the second resistor 312 is the same as the ratio of the resistance values ​​of the first thermistor 1 and the second thermistor 2 under the same conditions. A first preset voltage is applied to both ends of the first resistor 311 and the second resistor 312 connected in series. The end of the first resistor 311 away from the second resistor 312 and the end of the first thermistor 1 away from the second thermistor 2 are pressed with the same high voltage or low voltage. The first input end of the comparator 313 is electrically connected to the first thermistor 1 and the second thermistor 2, and the second input end of the comparator 313 is electrically connected to the first resistor 311 and the second resistor 312. The switch circuit module 32 is electrically connected to the output end of the comparator 313. The switch circuit module 32 is used to supply power to the functional module 1002 , and performs switch control on the power supply of the functional module 1002 based on the signal outputted from the output terminal of the comparator 313 .

[0063] Since the ratio of the resistance values ​​of the first resistor 311 and the second resistor 312 is the same as the ratio of the resistance values ​​of the first thermistor 1 and the second thermistor 2 under the same conditions, when the first thermistor 1 and the second thermistor 2 are both in a state where there is no airflow flowing nearby, the output end of the comparator 313 outputs one of a high level and a low level according to the voltage input to the first input end and the voltage input to the second input end; when one of the first thermistor 1 and the second thermistor 2 is in a state where there is airflow flowing nearby, or the first thermistor 1 and the second thermistor 2 are respectively in a state where there is airflow flowing nearby but the airflow flows at different speeds, the output end of the comparator 313 outputs the other of a high level and a low level according to the voltage input to the first input end and the voltage input to the second input end; in the above manner, the switch circuit module 32 performs switch control on the power supply of the functional module 1002 according to the signal output from the output end of the comparator 313.

[0064] In the embodiment of the present application, an air supply terminal device 100 is also proposed. Figure 3 Schematic diagram of the structure of the air supply terminal device in the embodiment of the utility model, as shown in Figure 3 As shown, the air supply terminal device 100 may include: a shell 1001, the shell 1001 forms a first air duct 10011 for air supply; a wind movement detection device 1003 such as any of the above-mentioned ones, the first thermistor 1 is arranged in the first air duct 10011, and the second thermistor 2 is arranged outside the shell 1001; a functional module 1002, and the functional module 1002 is electrically connected to the acquisition control module 3.

[0065] In this embodiment, the wind motion detection device 1003 is used to determine whether there is airflow in the first air duct 10011 based on the sampled voltage, and the acquisition control module 3 can control whether the function module 1002 is running according to whether there is gas flow in the first air duct 10011. The function module 1002 can be set in the first air duct 10011 or outside the housing 1001 according to specific needs. For example, when the function module 1002 is a negative ion generation module or a fragrance module, the function module 1002 can be set in the first air duct 10011.

[0066] As feasible, when the functional module 1002 includes a negative ion generating module, the acquisition control module 3 may include: an acquisition judgment module 31, a switch circuit module 32 electrically connected to the acquisition judgment module 31, and a transformer module electrically connected to the switch circuit module 32. The transformer module is electrically connected to the negative ion generating module to provide high voltage electricity to the negative ion generating module. The acquisition judgment module 31 is used to acquire the voltage between the first thermistor 1 and the second thermistor 2 to obtain a sampling voltage, and output a signal to the switch circuit module 32 according to the sampling voltage. The switch circuit module 32 is used to power the transformer module, and switch control the power supply of the transformer module based on the signal.

[0067] In a feasible implementation, the wind motion detection device 1003 can control the air supply terminal device 100 to have a first state and a second state. In the first state, the wind motion detection device 1003 detects that there is airflow in the first air duct 10011, and the functional module 1002 is in an open state. In the second state, the airflow detection unit detects that there is no airflow in the first air duct 10011, and the functional module 1002 is in a closed state. In this implementation, for example, the functional module 1002 can be a negative ion generating module. When the wind motion detection device 1003 detects that there is airflow in the first air duct 10011, the negative ion generating module is controlled to be turned on to release negative ions to the gas flowing through the first air duct 10011; when the wind motion detection device 1003 detects that there is no airflow in the first air duct 10011, the negative ion generating module is controlled to be turned off to save electricity and prevent the negative ion generating module from being damaged due to long-term operation.

[0068] In another feasible implementation, the wind movement detection device 1003 controls the air supply terminal device 100 to have a first state and a second state; in the first state, the wind movement detection device 1003 detects that there is airflow in the first air duct 10011, and the functional module 1002 is in a closed state; in the second state, the airflow detection unit detects that there is no airflow in the first air duct 10011, and the functional module 1002 is in an open state. For example, the functional module 1002 can have modules with various types of alarm and prompt functions. When the air supply terminal device 100 is detected to be supplying air smoothly, air is supplied to the air supply terminal device 100. If the pneumatic detection device 1003 detects that there is airflow in the first air duct 10011, the functional module 1002 is turned off and no alarm or prompt is required, indicating that the air supply to the air supply terminal device 100 is smooth. If the pneumatic detection device 1003 detects that there is no airflow in the first air duct 10011, the functional module 1002 is turned on and an alarm or prompt is required to inform the user that the air supply of the air supply terminal device 100 is not smooth and there is no air outlet, and there may be a fault somewhere.

[0069] The air supply terminal device 100 can be used for but not limited to one of the following devices: a fresh air system, an air conditioning system, a five-constant system with constant temperature, constant humidity, constant oxygen, constant cleanliness and constant quietness, etc.

[0070] In an embodiment of the present application, an air treatment system is also proposed, and the air treatment system includes any of the above-mentioned air supply terminal devices 100.

[0071] In the embodiment of the present application, a gas delivery device 200 is also proposed. Figure 4 Schematic diagram of the structure of the gas delivery device in the embodiment of the utility model, as shown in Figure 4 As shown, the gas delivery device 200 may include: a first air duct 10011; a first regulating module 2002 for regulating the gas flow rate of the first air duct 10011; a second air duct 2001; a second regulating module 2003 for regulating the gas flow rate of the second air duct 2001; a wind movement detection device 1003 such as any of the above-mentioned, a first thermistor 1 is arranged in the first air duct 10011, and a second thermistor 2 is arranged in the second air duct 2001, the wind movement detection device 1003 is electrically connected or communicatively connected with the first regulating module 2002 and the second regulating module 2003, and the wind movement detection device 1003 is used to control the first regulating module 2002 and / or the second regulating module 2003 based on the sampling voltage.

[0072] The wind motion detection device 1003 is used to control the first regulating module 2002 and / or the second regulating module 2003 based on the sampling voltage to control the gas flow rate flowing through the first air duct 10011 to be substantially the same as the gas flow rate flowing through the second air duct 2001.

[0073] As a feasible method, the first regulating module 2002 and the second regulating module 2003 may be air valves, or other types of devices capable of regulating the gas flow rate in the air duct.

[0074] In order to improve the detection accuracy of the wind detection device 1003 as much as possible, the postures of the first thermistor 1 arranged in the first air duct 10011 and the second thermistor 2 arranged in the second air duct 2001 are kept consistent relative to the gas flow direction, thereby ensuring that under the same gas flow rate, the heat dissipation degree of the first thermistor 1 and the second thermistor 2 is basically the same.

[0075] All articles and references disclosed, including patent applications and publications, are incorporated herein by reference for various purposes. The term "consisting essentially of ... " describing a combination should include determined elements, ingredients, parts or steps and other elements, ingredients, parts or steps that do not substantially affect the basic novel features of the combination. The use of the terms "comprising" or "including" to describe the combination of elements, ingredients, parts or steps here also contemplates the implementation method consisting essentially of these elements, ingredients, parts or steps. Here, by using the term "may", it is intended to illustrate that any attribute described that "may" includes is optional. Multiple elements, ingredients, parts or steps can be provided by a single integrated element, ingredient, part or step. Alternatively, a single integrated element, ingredient, part or step can be divided into separate multiple elements, ingredients, parts or steps. The disclosure "one" or "one" used to describe an element, ingredient, part or step is not said to exclude other elements, ingredients, parts or steps.

[0076] The above are only a few embodiments of the present invention. Although the embodiments disclosed by the present invention are as above, the contents are only embodiments adopted for facilitating the understanding of the present invention and are not used to limit the present invention. Any technician in the technical field to which the present invention belongs can make any modification and change in the form and details of the implementation without departing from the spirit and scope disclosed by the present invention, but the scope of patent protection of the present invention shall still be subject to the scope defined by the attached claims.

Claims

1. A wind detection device, characterized in that: The wind motion detection device comprises: A first thermistor and a second thermistor connected in series, wherein a ratio of the resistance values ​​of the first thermistor and the second thermistor under the same conditions is the same as a ratio of a degree of change of the first thermistor with temperature to a degree of change of the second thermistor with temperature; the first thermistor is used to be arranged in a first area, the first area is a first air duct, and the second thermistor is used to be arranged in a second area, the first area is different from the second area; a first preset voltage is applied to both ends of the first thermistor and the second thermistor connected in series; An acquisition control module is electrically connected to the first thermistor and the second thermistor to acquire a voltage between the first thermistor and the second thermistor to obtain a sampled voltage. The acquisition control module is used to be electrically connected to a functional module and control the functional module based on the sampled voltage.

2. The wind motion detection device according to claim 1, characterized in that: The first thermistor and the second thermistor are the same thermistor.

3. The wind motion detection device according to claim 1, characterized in that: The functional module is a power-consuming module, and the acquisition control module is used to supply power to the functional module and perform switch control on the power supply of the functional module based on the sampled voltage.

4. The wind motion detection device according to claim 1, characterized in that: The functional modules include at least one of the following: a negative ion generating module, a fragrance module, a sterilization module, a dust removal module, and a fan module.

5. The wind motion detection device according to claim 3, characterized in that: The acquisition control module includes: an acquisition judgment module and a switch circuit module; The collection and judgment module comprises: A first resistor and a second resistor connected in series, wherein a ratio of the resistance values ​​of the first resistor and the second resistor is the same as a ratio of the resistance values ​​of the first thermistor and the second thermistor under the same conditions; a first preset voltage is applied to both ends of the first resistor and the second resistor connected in series; A comparator, wherein a first input terminal of the comparator is electrically connected to the first thermistor and the second thermistor, and a second input terminal of the comparator is electrically connected to the first resistor and the second resistor; The switch circuit module is electrically connected to the output end of the comparator, and is used to supply power to the functional module, and to perform switch control on the power supply of the functional module based on a signal output from the output end of the comparator.

6. The wind motion detection device according to claim 1, characterized in that: The first thermistor is flat; and / or the second thermistor is flat.

7. The wind motion detection device according to claim 1, characterized in that: The second area is a second air duct.

8. The wind motion detection device according to claim 1, characterized in that: The second area is a non-air duct area.

9. An air supply terminal device, characterized in that: The air supply terminal device comprises: a housing, wherein the housing forms a first air duct for supplying air; The wind motion detection device according to any one of claims 1 to 8, wherein the first thermistor is arranged in the first air duct, and the second thermistor is arranged outside the housing; The functional module is electrically connected to the acquisition control module.

10. The air supply terminal device according to claim 9, characterized in that: The functional module includes a negative ion generating module, the collection control module includes a collection judgment module, a switch circuit module electrically connected to the collection judgment module, and a transformer module electrically connected to the switch circuit module, and the transformer module is electrically connected to the negative ion generating module to provide high voltage electricity to the negative ion generating module; The acquisition and judgment module is used to acquire the voltage between the first thermistor and the second thermistor to obtain a sampled voltage, and output a signal to the switch circuit module according to the sampled voltage; the switch circuit module is used to supply power to the transformer module, and perform switch control on the power supply of the transformer module based on the signal.

11. The air supply terminal device according to claim 9, characterized in that: The wind movement detection device is used to determine whether there is airflow in the first air duct based on the sampled voltage, so as to control whether the functional module is running.

12. The air supply terminal device according to claim 10, characterized in that: The wind movement detection device controls the air supply terminal device to have a first state and a second state; In the first state, the wind motion detection device detects that there is airflow in the first air duct, and the functional module is in an on state; In the second state, the airflow detection unit detects that there is no airflow in the first air duct, and the functional module is in a closed state.

13. The air supply terminal device according to claim 10, characterized in that: The wind movement detection device controls the air supply terminal device to have a first state and a second state; In the first state, the wind motion detection device detects that there is airflow in the first air duct, and the functional module is in a closed state; In the second state, the airflow detection unit detects that there is no airflow in the first air duct, and the functional module is in an on state.

14. The air supply terminal device according to claim 9, characterized in that: The air supply terminal device is used for one of the following devices: a fresh air system, an air conditioning system, and a five-constant system with constant temperature, constant humidity, constant oxygen, constant cleanliness and constant quietness.

15. An air treatment system, characterized in that: The air handling system includes the air supply terminal device as described in claim 9.

16. A gas delivery device, characterized in that: The gas delivery device comprises: A first air duct; a first regulating module for regulating the gas flow rate of the first air duct; A second air duct; a second regulating module for regulating the gas flow rate of the second air duct; According to the wind movement detection device as described in any one of claims 1-8, the first thermistor is arranged in the first air duct, the second thermistor is arranged in the second air duct, the wind movement detection device is electrically connected or communicatively connected to the first adjustment module and the second adjustment module, and the wind movement detection device is used to control the first adjustment module and / or the second adjustment module based on the sampling voltage.

17. The gas delivery device according to claim 16, characterized in that The wind motion detection device is used to control the first regulating module and / or the second regulating module based on the sampling voltage to control the gas flow rate flowing through the first air duct to be substantially the same as the gas flow rate flowing through the second air duct.

18. The gas delivery device according to claim 16, characterized in that The first thermistor disposed in the first air duct and the second thermistor disposed in the second air duct are arranged in a consistent posture relative to a gas flow direction.

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