Air outlet structure, air purifier and control method

Abstract

The present application relates to a kind of air outlet structure, air purifier and control method, belong to air purification technical field, solve the technical problem of the relatively low purification efficiency of existing air purifier.The air outlet structure includes air outlet air duct;Partition, is installed in the outlet of air outlet air duct, the outlet of air outlet air duct is separated into first air outlet and second air outlet by partition, first air outlet is towards upper, second air outlet is towards side or lower;Heating part, is installed on partition, heating part is used to heat the air discharged by first air outlet.The air purifier uses above-mentioned air outlet structure, therefore, the air purification efficiency of this air purifier is higher.The control method is used to control above-mentioned air purifier, mainly according to the air temperature after being heated by heated part to regulate and control the heating efficiency of heating part, so that air purifier can realize automatic adjustment the heating temperature of the air after purification.

Description

Technical Field

[0001] This invention belongs to the field of air purification technology, and specifically relates to an air outlet structure, an air purifier, and a control method. Background Technology

[0002] An air purifier is a device that uses a fan to draw polluted air into its body, then filters it to produce clean air before releasing it, thus purifying the air in a specific area.

[0003] Existing air purifiers typically draw in unpurified air from all sides and then exhaust purified air from the top vent. Since the exhausted purified air is cold, and its density is similar to that of air, it rises due to inertia, only to begin to sink after reaching a relatively low height. The exhausted purified air also forces unpurified air towards the purifier. Because the purified air rises relatively low, the purified area is limited, and in taller spaces, the time required to purify the indoor air is longer. Therefore, the purification efficiency of existing air purifiers is relatively low.

[0004] For example, the air purified by an existing air purifier rises 0.5m and then begins to sink. Therefore, the air circulates within the area 0.5m above and below the purifier. Thus, the purifier can purify the air within 0.5m above it in a short time. However, the air within 0.5m above it cannot be purified in a short time and can only be purified by running for a long time. Summary of the Invention

[0005] This invention provides an air outlet structure, an air purifier, and a control method to solve the technical problem of low purification efficiency in existing air purifiers.

[0006] This invention is achieved through the following technical solution: an air outlet structure, comprising:

[0007] Air duct;

[0008] A partition is installed at the outlet of the air duct, and the outlet of the air duct is divided into a first air outlet and a second air outlet by the partition. The first air outlet faces upward, and the second air outlet faces to the side or downward.

[0009] A heating element is installed on the partition, and the heating element is used to heat the air discharged through the first air outlet.

[0010] Furthermore, to better realize the present invention, the partition includes:

[0011] Two baffles are positioned opposite each other, forming the first air outlet between the two baffles, and forming the second air outlet between the baffles and the edge of the outlet of the air duct.

[0012] The heating element may be installed on one of the baffles, or on both of the baffles.

[0013] Furthermore, in order to better realize the present invention, the baffle includes a first plate and a second plate, the second plate is fixed to one end of the first plate and is perpendicular to the first plate, the first plate is connected to the inner wall of the outlet of the air duct, and one end of the first plate extends out of the air duct, and the second plate faces the side away from the center of the outlet of the air vent.

[0014] The heating element is installed on the first plate of both baffles.

[0015] Furthermore, in order to better realize the present invention, the heating element is a Peltier, which is adhered to the first plate and located inside the first air outlet.

[0016] Furthermore, in order to better realize the present invention, a protruding structure is also installed on the first plate. The protruding structure is located in the first air outlet and is used to extend the flow path of air when passing through the first air outlet.

[0017] Furthermore, in order to better realize the present invention, the protruding structure is a fin, and a plurality of the fins are fixedly provided on each of the first plates.

[0018] The air purifier provided by the present invention includes the above-described air outlet structure.

[0019] Furthermore, to better realize the present invention, it also includes:

[0020] A temperature sensor is used to detect the temperature of the air after it has been heated by the heating element;

[0021] The controller is electrically connected to both the heating element and the temperature sensor to control the heating power of the heating element based on the temperature detected by the temperature sensor.

[0022] A display screen, electrically connected to the controller, displays the temperature detected by the temperature sensor;

[0023] The remote control is communicatively connected to the controller to control the heating power of the heating unit.

[0024] The control method provided by this invention is used to control the above-mentioned air purifier, including:

[0025] A preset temperature is set in the controller;

[0026] The temperature sensor is used to detect the temperature of the air heated by the heating element to obtain the measured temperature.

[0027] The controller compares the measured temperature with the preset temperature, and when the measured temperature is lower than the preset temperature, the controller controls the heating element to increase its heating power.

[0028] Furthermore, it also includes:

[0029] The controller has three preset speed settings, namely the first speed setting, the second speed setting, and the third speed setting. The preset temperatures corresponding to the three speed settings are the first temperature, the second temperature, and the third temperature, respectively, wherein the third temperature > the second temperature > the first temperature.

[0030] Furthermore, the first temperature is 37°C; the second temperature is 47°C; and the third temperature is 59°C.

[0031] Compared with the prior art, the present invention has the following advantages:

[0032] (1) The air outlet structure provided by the present invention includes an air outlet duct, a partition, and a heating part. The partition is installed at the outlet of the air outlet duct, and the outlet of the air outlet duct is divided into a first air outlet and a second air outlet by the partition. The first air outlet faces upward, and the second air outlet faces to the side or downward. The heating part is installed on the partition, thereby heating the air flowing out through the first air outlet. By heating the air flowing out through the first air outlet, since the density of the heated air is greater than that of the unheated air, the heated air rises a longer distance, while the unheated air rises a shorter distance and then begins to sink. The unheated air is discharged to the side or downward through the second air outlet. When this air outlet structure is used in an air purifier, the purified air, after being heated by the heating element, rises to a higher distance, thus pushing the unpurified air in the higher space towards the air purifier. Meanwhile, the purified but unheated air rises a shorter distance and then sinks, pushing the air below towards the air purifier. Therefore, air purifiers using this air outlet structure can purify the air in higher spaces more quickly, resulting in higher purification efficiency.

[0033] (2) The air purifier provided by the present invention adopts the above-mentioned air outlet structure, so the air purifier has a higher purification efficiency for the air in the space.

[0034] (3) The control method provided by the present invention is used to control the above-mentioned air purifier. The air purifier also includes a temperature sensor and a controller. The temperature sensor is used to detect the temperature of the air heated by the heating element. The controller is electrically connected to both the heating element and the temperature sensor, thereby controlling the heating power of the heating element according to the temperature detected by the temperature sensor. The method includes setting a preset temperature in the controller, using the temperature sensor to detect the temperature of the air heated by the heating element to obtain a measured temperature, comparing the measured temperature with the preset temperature, and when the measured temperature is lower than the preset temperature, using the controller to control the heating element to increase the heating power so that the measured temperature reaches the preset temperature. Through this control method, it is ensured that the air heated by the heating element can reach the preset temperature, thereby allowing the purified and heated air to rise to a predetermined height, and then compressing the air at the predetermined height into the air purifier. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the air outlet structure provided in the embodiment of the present invention (solid arrows in the figure indicate the flow direction of heated air, and hollow arrows indicate the flow direction of unheated air);

[0037] Figure 2 This is a block diagram of the electronic control system of the air purifier provided in the embodiments of the present invention, including the controller, power supply, temperature sensor, display screen, and remote control.

[0038] Figure 3 This is a flowchart of the control method provided in an embodiment of the present invention.

[0039] In the picture:

[0040] 1-Air outlet duct; 2-Heating section; 3-Separation section; 31-First plate; 32-Second plate; 4-Fins; 5-Temperature sensor; 6-Controller; 7-Display screen; 8-Remote control; 9-First air outlet; 10-Second air outlet; 11-Power supply. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0042] Example 1:

[0043] This embodiment provides an air outlet structure, which includes an air outlet duct 1 and a heating unit 2. The heating unit 2 is installed at the outlet of the air outlet duct 1, thereby heating a portion of the air flowing out through the outlet of the air outlet duct 1.

[0044] The air that flows out of the outlet of the air duct 1 through the heating part 2 is heated. Since the density of the heated air is greater than that of the unheated air, the heated air rises a longer distance, while the unheated air rises a shorter distance before sinking.

[0045] When this air outlet structure is used in an air purifier, the purified air, after being heated by the heating unit 2, can rise to a higher distance, thereby pushing the unpurified air in the higher space towards the air purifier. Meanwhile, the purified but unheated air rises a shorter distance and then sinks, pushing the air below towards the air purifier. Therefore, an air purifier using this air outlet structure can purify the air in the higher space more quickly, improve purification efficiency, and shorten the time to purify the air in the entire space.

[0046] In this embodiment, the outlet of the air duct 1 faces upward.

[0047] A partition 3 is also installed at the outlet of the aforementioned air outlet duct 1, dividing the outlet of the air outlet duct 1 into a first air outlet 9 and a second air outlet 10. The first air outlet 9 faces upward, and the second air outlet 10 faces to the side or downward. A heating unit 2 is installed on the partition 3 and is used to heat the air discharged through the first air outlet 9. In this way, the heating unit 2 heats the air flowing out through the first air outlet 9, and since the first air outlet 9 faces upward, the air heated by the heating unit 2 can rise to a higher spatial area, while the unheated air is discharged through the second air outlet 10, allowing the unheated air to flow to the surroundings or downward.

[0048] Optionally, the partition 3 in this embodiment includes two opposing baffles, with the first air outlet 9 formed between the two baffles, and the second air outlet 10 formed between the baffles and the edge of the outlet of the air duct 1. It is easy to understand that the two baffles divide the outlet of the air duct 1 into three sequentially distributed air outlets, with one outlet located between the other two. The middle outlet is the first air outlet 9, and the outlets on either side are the second air outlets 10. The heating element 2 can be installed on one of the baffles, or it can be installed on both baffles. When the heating element 2 is installed on both baffles, the air at the first air outlet 9 is heated more efficiently.

[0049] Specifically, the aforementioned baffle includes a first plate 31 and a second plate 32. The second plate 32 is integrally formed at one end of the first plate 31 and is perpendicular to the first plate 31. The second plate 32 and the first plate 31 form a "7"-shaped plate. The first plate 31 is snapped, welded, or bonded to the inner wall of the outlet of the air duct 1, and one end of the first plate 31 extends out of the air duct 1. The second plate 32 faces away from the center of the outlet of the air duct. A heating element 2 is installed on the first plate 31 of both baffles. In this case, the aforementioned partition 3 is composed of two "7"-shaped plates arranged back to back. Furthermore, in this case, the aforementioned first air outlet 9 is formed between the two first plates 31, and the aforementioned second air outlet 10 is formed between the first plate 31, the second plate 32, and the edge of the outlet of the air duct 1. The second air outlet 10 faces to the side.

[0050] As another embodiment of this example, a third plate facing downward is provided on the side of the second plate 32 away from the first plate 31. The third plate is located above the side of the air outlet duct 1, so that a downward-facing second air outlet 10 is formed between the first plate 31, the second plate 32, the third plate and the edge of the outlet of the air outlet duct.

[0051] As another optional implementation of this embodiment, the partition 3 in this embodiment includes a straight pipe and an annular plate. The annular plate is fixed at one end of the straight pipe and is coaxially arranged with the straight pipe. The annular plate or the straight pipe is connected to the outer wall of the air outlet duct 1 by a connecting rod. At this time, the inner hole of the straight pipe forms the first air outlet 9, and the outer wall of the straight pipe and the annular plate and the outlet edge of the air outlet duct 1 form a second air outlet 10 facing to the side.

[0052] An optional implementation of this embodiment is as follows: This embodiment uses the partition 3 as an example, which includes two baffles composed of a first plate 31 and a second plate 32. The heating part 2 in this embodiment is a Peltier, which is adhered to the first plate 31 and located inside the first air outlet 9. Specifically, the Peltier has a cooling end, a heating end, and a covering shell. The shell is adhered to the first plate 31 with adhesive. The cooling end is located near the first plate 31, and the heating end is near the inner side of the first air outlet 9, i.e., the heating end is located in the first air outlet 9. When the Peltier is powered, its heating end generates heat to heat the air flowing out of the first air outlet 9, and the cooling end cools the first plate 31. The air flowing out of the second air outlet 10 comes into contact with the first plate 31, thereby cooling the air flowing out of the second air outlet 10. In this way, not only can the air flowing out of the first air outlet 9 be heated, but the air flowing out of the second air outlet 10 can also be cooled. Of course, the aforementioned Peltier completely covers the side of the first panel 31 closest to the first air outlet 9. Studies have shown that at a room temperature of 27°C, a voltage of 5V, and a current of 1.5A, using a 20mm x 20mm single-layer Peltier to heat and cool air results in a temperature change rate of 12°C / s, with a maximum temperature reaching 59°C and a minimum temperature of approximately 7°C. Therefore, using Peltiers to heat the air at the first air outlet 9 not only meets the requirements but also offers a simple structure, convenient installation, and low cost.

[0053] Optionally, the heating part 2 in this embodiment can also be any other component with heating function, such as an electric heating wire, as long as it can be connected to the air in the first air outlet 9.

[0054] More preferably, a protruding structure is also installed on the first plate 31, located in the first air outlet 9. This protruding structure extends the airflow path when passing through the first air outlet 9. With the help of the protruding structure extending into the first air outlet 9, when air passes through the first air outlet 9, some of the air comes into contact with the protruding structure and moves a certain distance along it, thereby extending the path of some air in the first air outlet 9. This extends the time the heating unit 2 spends in the first air outlet 9, allowing the heating unit 2 to transfer more heat to the air in the first air outlet 9. Furthermore, the protruding structure is also heated after contacting the heating end of the Peltier, increasing the contact area between the air in the first air outlet 9 and the heat source (i.e., the Peltier and the protruding structure), further allowing the air in the first air outlet 9 to gain more heat. Optionally, the protruding structure is a fin 4, and several of these fins 4 are fixed on each first plate 31. Specifically, the fin 4 can be integrally formed with the first plate 31. Of course, the fin 4 can also be connected to the first plate 31 by welding or hot-melt connection.

[0055] Example 2:

[0056] This embodiment provides an air purifier that employs the aforementioned air outlet structure, with the outlet of the air outlet duct 1 facing upwards, i.e., the air outlet of the air purifier faces upwards. The purified air is discharged from the air outlet structure. During the discharge process, the heating unit 2 heats a portion of the discharged air, causing the heated air to rise to a higher height, thus drawing unpurified air from higher spaces towards the air purifier. The purified but unheated air rises a short distance before sinking, drawing air from below towards the air purifier. Therefore, using this air purifier allows for faster purification of air in higher spaces, resulting in higher purification efficiency and enabling the purification of the entire space in a shorter time.

[0057] More preferably, the air purifier further includes a temperature sensor 5 and a controller 6. The temperature sensor 5 is used to detect the temperature of the air heated by the heating unit 2. Optionally, the temperature sensor 5 is mounted on the aforementioned partition 3. The controller 6 is electrically connected to both the heating unit 2 and the temperature sensor 5. The controller 6 controls the heating power of the heating unit 2 based on the temperature detected by the temperature sensor 5.

[0058] This embodiment uses a Peltier as an example for the heating element 2. Of course, the controller 6 is also electrically connected to the power supply 11. Thus, the controller 6 controls the current supplied to the Peltier based on the temperature detected by the temperature sensor 5, thereby controlling the heating power of the Peltier.

[0059] Therefore, this air purifier can automatically control the temperature of the air flowing out of the first air outlet 9 by heating the heating unit 2, thereby controlling the height to which the air flowing out of the first air outlet 9 can rise. When the temperature is higher, the air rises higher, and the purification efficiency of the entire air purifier will be higher, but the power consumption will also be higher.

[0060] In addition, the air purifier provided in this embodiment also includes a display screen 7 and a remote control 8. The display screen 7 is electrically connected to the controller 6 to display the temperature detected by the temperature sensor 5, so as to facilitate the user's viewing. The remote control 8 is connected to the controller 6 via Wi-Fi communication, so as to control the heating power of the heating unit 2, that is, to control the heating temperature of the heating unit 2.

[0061] Optionally, the controller 6 in this embodiment is a PLC, but the controller 6 can also be a chip or a circuit board.

[0062] Example 3:

[0063] This embodiment provides a control method for controlling the air purifier provided in Embodiment 2. The method includes setting a preset temperature in the controller 6, using a temperature sensor 5 to detect the temperature of the air heated by the heating unit 2 to obtain a measured temperature, comparing the measured temperature with the preset temperature, and, if the measured temperature is lower than the preset temperature, using the controller 6 to control the heating unit 2 to increase its heating power so that the measured temperature reaches the preset temperature. Through this control method, when the measured temperature is lower than the preset temperature, the heating power of the heating unit 2 is increased, causing the heating unit 2 to heat the air to a higher temperature. This ensures that the air heated by the heating unit 2 reaches the preset temperature, allowing the purified heated air to rise to a predetermined height, and then compressing the air at the predetermined height into the air purifier.

[0064] Optionally, the controller 6 has three preset speed settings: a first speed setting, a second speed setting, and a third speed setting. The preset temperatures corresponding to these three speed settings are the first temperature, the second temperature, and the third temperature, respectively, where the third temperature > the second temperature > the first temperature. For example, the first temperature is 37°C, the second temperature is 47°C, and the third temperature is 59°C.

[0065] The gear position is automatically adjusted by the controller 6 via the remote control 8, while the remote control 8 is manually adjusted by the user. The temperature sensor 5 compares the temperature detected each time with the preset temperature of the corresponding gear position. If the measured temperature is higher than the preset temperature of the current gear position, the controller 6 reduces the current supplied to the Peltier; if the measured temperature is lower than the preset temperature of the current gear position, the controller 6 increases the current supplied to the Peltier.

[0066] Because warmer air can rise higher into a larger space, and rising air can draw air from higher areas into the air purifier, warmer air results in higher purification efficiency. Therefore, the three settings mentioned above correspond to different air purification efficiencies. It's easy to understand that the first setting has a lower purification efficiency than the second, and the second setting has a lower efficiency than the third.

[0067] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope described in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An air outlet structure, characterized in that, include: Air duct; A partition is installed at the outlet of the air duct, and the outlet of the air duct is divided into a first air outlet and a second air outlet by the partition. The first air outlet faces upward, and the second air outlet faces to the side or downward. A heating element is installed on the partition, and the heating element is used to heat the air discharged through the first air outlet; The partition includes: Two baffles are positioned opposite each other, forming the first air outlet between the two baffles, and forming the second air outlet between the baffles and the edge of the outlet of the air duct. The heating element is installed on one of the baffles, or the heating element is installed on both of the baffles; The baffle includes a first plate and a second plate. The second plate is fixed to one end of the first plate and is perpendicular to the first plate. The first plate is connected to the inner wall of the outlet of the air duct and one end of the first plate extends out of the air duct. The second plate faces away from the center of the outlet of the air duct. The heating element is installed on the first plate of both baffles.

2. The air outlet structure according to claim 1, characterized in that: The heating element is a Peltier, which is adhered to the first plate and located inside the first air outlet.

3. The air outlet structure according to claim 2, characterized in that: The first plate is also equipped with a protruding structure located in the first air outlet, which is used to extend the flow path of air when passing through the first air outlet.

4. The air outlet structure according to claim 3, characterized in that: The protruding structure is a fin, and a number of the fins are fixed on each of the first plates.

5. An air purifier, characterized in that: The air outlet structure includes any one of claims 1-4.

6. An air purifier according to claim 5, characterized in that, Also includes: A temperature sensor is used to detect the temperature of the air after it has been heated by the heating element; The controller is electrically connected to both the heating element and the temperature sensor to control the heating power of the heating element based on the temperature detected by the temperature sensor. A display screen, electrically connected to the controller, displays the temperature detected by the temperature sensor; The remote control is communicatively connected to the controller to control the heating power of the heating unit.

7. A control method for an air purifier as described in claim 6, characterized in that, include: A preset temperature is set in the controller; The temperature sensor is used to detect the temperature of the air heated by the heating element to obtain the measured temperature. The controller compares the measured temperature with the preset temperature, and when the measured temperature is lower than the preset temperature, the controller controls the heating element to increase the heating power so that the measured temperature reaches the preset temperature.

8. The control method according to claim 7, characterized in that, Also includes: The controller has three preset speed settings, namely the first speed setting, the second speed setting, and the third speed setting. The preset temperatures corresponding to the three speed settings are the first temperature, the second temperature, and the third temperature, respectively, wherein the third temperature > the second temperature > the first temperature.

9. The control method according to claim 8, characterized in that: The first temperature is 37°C; The second temperature is 47°C; The third temperature is 59°C.

Images