Air purifier

Abstract

The utility model relates to the field of air purifiers, and discloses an air purifier which comprises a machine shell, a purifying fan, a fan and a switching mechanism. A first air outlet and a second air outlet are formed in the machine shell; the purification fan and the fan are arranged in the machine shell, a purification air channel is arranged between the purification fan and the machine shell, a fan air channel is arranged between the fan and the machine shell, the purification air channel is communicated with the first air outlet and the fan air channel, the fan air channel is communicated with the second air outlet, and a heater is arranged in the fan air channel; the switching mechanism is arranged in the machine shell and comprises a baffle and a baffle driving part, and the baffle driving part is connected with the baffle and drives the baffle to move in the direction away from or close to the first air outlet; in the warm air mode, the switching mechanism shields the first air outlet, and the heater heats the fan air channel. The air purifier provided by the utility model can solve the problems of how to respectively or simultaneously realize air purification and fan functions and how to output warm air.

Description

Technical Field

[0001] The utility model relates to the field of air purifiers, in particular to an air purifier. Background Art

[0002] As human pollution to the environment becomes more and more serious and air quality becomes worse and worse, air purifiers have gradually become popular. Traditional air purifiers have limited air supply distance and cannot deliver clean air to a long distance, resulting in a slow air purification speed in the entire room.

[0003] In order to solve this problem, in the related art, there is an air purifier with a fan function, which includes a fan and a filter element. When in use, the fan drives the external air into the air purifier, passes through the filter element to be purified into clean air, and then blows out of the air purifier, thereby generating a purified airflow. The air purifier can realize air purification and fan functions at the same time, and the fan can send clean air to a longer distance, thereby increasing the air purification speed.

[0004] However, it is difficult for the air purifier to realize the air purification and fan functions separately, and it does not have the heating function of outputting warm air, and cannot meet the diverse usage needs of users. As a result, users need to configure a fan separately in the summer and a heater separately in the cold winter, which takes up a large space. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The utility model provides an air purifier, which can at least solve the technical problem of how to realize air purification and fan functions separately or simultaneously, and how to output warm air.

[0007] (II) Technical solution

[0008] In order to solve the above technical problems, the utility model provides the following technical solutions: an air purifier, including an air supply mode and a warm air mode, the air purifier also includes:

[0009] A casing, wherein a first air outlet and a second air outlet are provided on the casing;

[0010] A purification fan and a fan fan are installed in the casing, a purification air duct is provided between the purification fan and the casing, a fan duct is provided between the fan fan and the casing, the purification air duct is connected with the first air outlet and the fan duct, and is used for the purification airflow generated by the purification fan to flow toward the first air outlet and the fan duct, the fan duct is connected with the second air outlet, and is used for the fan airflow generated by the fan fan to flow toward the second air outlet, and a heater is provided in the fan duct;

[0011] The switching mechanism is arranged in the housing and includes a baffle and a baffle driving member, wherein the baffle driving member is connected to the baffle and drives the baffle to move in a direction away from or close to the first air outlet to expose or cover the first air outlet;

[0012] Among them, in the air supply mode, the switching mechanism exposes the first air outlet; in the warm air mode, the switching mechanism blocks the first air outlet, and the heater heats the fan duct.

[0013] It is further provided that the aforementioned baffle is rotatably connected in the housing and contacts the inner wall surface at the first air outlet of the housing, and the baffle includes a driven gear ring;

[0014] The baffle driving member includes a motor and a driving gear. The motor is installed in the casing. The output end of the motor is connected to the driving gear. The driving gear is meshed with the driven gear ring to drive the baffle to rotate to expose or cover the first air outlet.

[0015] It is further configured that the aforementioned casing is also provided with an air inlet and a ventilation duct for connecting the purification air duct and the fan air duct. The air inlet is connected to the purification air duct and is used to supply external air to flow into the purification air duct. The air inlet, the purification air duct, the ventilation duct and the fan duct are distributed in sequence from bottom to top.

[0016] It is further configured that the aforementioned casing is also provided with an air outlet surface, the first air outlet and the second air outlet are arranged on the same side of the casing, the first air outlet is arranged on the air outlet surface and is located below the second air outlet, the air outlet surface is inclined from bottom to top and extends toward the inside of the casing, and is located between the purification air duct and the ventilation duct.

[0017] It is further configured that an air inlet grille and an air outlet grille are also provided on the aforementioned casing, both of which are connected to the fan duct. The air inlet grille is used to allow external air to flow into the fan duct, and the opening of the air outlet grille is configured as a second air outlet.

[0018] It is further arranged that the aforementioned air inlet grille and air outlet grille are arranged relative to each other and are located on both sides of the heater respectively.

[0019] (III) Beneficial effects

[0020] Compared with the prior art, the air purifier provided by the utility model has the following beneficial effects:

[0021] 1. The air purifier provided by the utility model has two functions of air purification and fan, and the two functions are respectively realized by the purification fan and the fan blower. The specific implementation method is: when the purification fan is started, it can drive the external air to flow into the purification duct and purify it, and then flow out toward the first air outlet and the fan duct to form a purified airflow, thereby realizing the air purification function; when the fan blower is started, it can drive the air in the fan duct (including the purified airflow flowing into the fan duct) to flow out toward the second air outlet to form a fan airflow, thereby realizing the fan function; in this way, when the purification fan and the fan blower are started at the same time, the air purifier can realize the two functions of air purification and fan at the same time, effectively increase the air volume, expand the purification range, and improve the purification efficiency;

[0022] 2. The air purifier not only has the two functions of air purification and fan, but also has two working modes, namely air supply mode and warm air mode. When the air purifier is in the air supply mode, the switching mechanism exposes the first air outlet. If the purification fan is started, the purification fan generates a purification airflow, a part of which flows toward the first air outlet and blows out cold air, and the other part flows into the fan duct and flows toward the second air outlet together with the air in the fan duct and blows out cold air. If the fan blower is started, the fan blower generates a fan airflow that flows toward the second air outlet and blows out cold air. If the purification fan and the fan blower are started at the same time, the air purifier blows out cold air through the first air outlet and the second air outlet. When the purifier is in warm air mode, the heater is started, and the baffle driving member drives the baffle to cover the first air outlet; if the purification fan is started, the purified airflow generated by the purification fan will all flow into the fan duct, and together with the air in the fan duct, will be heated by the heater and then flow out toward the second air outlet; if the fan blower is started, the fan airflow generated by the fan blower will be heated by the heater and then flow out toward the second air outlet; in this way, no matter either the purification fan or the fan blower is started separately, or both are started at the same time, the air purifier will blow out warm air through the second air outlet, wherein the switching mechanism can prevent the purified airflow from being blown out without being heated, effectively ensuring that the air blown out by the air purifier is all warm air.

[0023] In summary, the air purifier can realize either the air purification or fan function separately or simultaneously by turning on and off the purification fan and the fan fan separately or simultaneously, or can realize both the air purification and fan functions simultaneously. In addition, the air purifier can also output warm air in combination with a heater and a switching mechanism. There is no need to configure additional equipment such as fans and heaters, and the air purifier can meet the diverse usage needs of users. Multiple functions are integrated into one, which greatly saves space. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional diagram of an air purifier in an embodiment;

[0025] Figure 2is a first longitudinal cross-sectional view of the air purifier in the embodiment;

[0026] Figure 3 It is a second longitudinal cross-sectional view of the air purifier in the embodiment.

[0027] Figure Number:

[0028] 1. Purification air duct; 2. Fan air duct;

[0029] 3. Switching mechanism; 31. Baffle; 311. Driven gear ring; 32. Baffle driving member; 321. Motor; 322. Driving gear;

[0030] 4. Purification fan;

[0031] 5. Casing; 51. First air outlet; 52. Second air outlet; 53. Air inlet; 54. Ventilation duct; 55. Air outlet surface; 56. Air inlet grille; 57. Air outlet grille;

[0032] 6. Fan; 7. Heater. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] The utility model provides an air purifier, which is used to solve the problem of how to realize air purification and fan functions separately or simultaneously, and how to output warm air.

[0035] See also Figure 1 and Figure 2 As shown, Figure 1 is a three-dimensional diagram of an air purifier in an embodiment, Figure 2 It is a first longitudinal cross-sectional view of the air purifier in the embodiment, and the air purifier includes a switching mechanism 3, a purification blower 4, a casing 5 and a fan 6.

[0036] The housing 5 has a first air outlet 51 and a second air outlet 52 .

[0037] The purification fan 4 and the fan 6 are both installed in the housing 5. A purification air duct 1 is formed between the purification fan 4 and the housing 5, and a fan duct 2 is formed between the fan 6 and the housing 5. The purification air duct 1 is connected to the first air outlet 51 and is also connected to the fan duct 2. The fan duct 2 is also connected to the second air outlet 52. Among them, the purification air duct 1 is used for the purification airflow generated by the purification fan 4 to flow toward the first air outlet 51 and the fan duct 2, and the fan duct 2 is used for the fan airflow generated by the fan 6 to flow toward the second air outlet 52.

[0038] A heater 7 is installed in the fan duct 2 , and the heater 7 is used to heat the air in the fan duct 2 .

[0039] The switching mechanism 3 is installed in the casing 5, and the switching mechanism 3 includes a baffle 31 and a baffle driving member 32. The baffle driving member 32 is connected to the baffle 31, and the baffle driving member 32 drives the baffle 31 to move away from or close to the first air outlet 51 to expose or cover the first air outlet 51.

[0040] The air purifier of the above technical solution has two functions of air purification and fan, and the two functions are respectively realized by the purification fan 4 and the fan fan 6. The specific implementation method is: when the purification fan 4 is started, it can drive the external air to flow into the purification duct 1 and purify it, and then flow out toward the first air outlet 51 and the fan duct 2 to form a purified airflow, thereby realizing the air purification function; when the fan fan 6 is started, it can drive the air in the fan duct 2 (including the purified airflow flowing into the fan duct 2) to flow out toward the second air outlet 52 to form a fan airflow, thereby realizing the fan function; in this way, when the purification fan 4 and the fan fan 6 are started at the same time, the two functions of air purification and fan can be realized at the same time, effectively increasing the air output, expanding the purification range, and improving the purification efficiency.

[0041] The air purifier not only has the two functions of air purification and fan, but also has two working modes: air supply mode and warm air mode. When the air purifier is in the air supply mode, the switching mechanism 3 exposes the first air outlet 51. If the purification fan 4 is started, the purification fan 4 generates a purification airflow, a part of which flows toward the first air outlet 51 and blows out cold air, and the other part flows into the fan duct 2, and flows toward the second air outlet 52 together with the air in the fan duct 2 and blows out cold air. If the fan blower 6 is started, the fan blower 6 generates a fan airflow that flows toward the second air outlet 52 and blows out cold air. If the purification fan 4 and the fan blower 6 are started at the same time, as shown in FIG. Figure 2 As shown, Figure 2The direction of the arrow in is the flow direction of air, and the air purifier blows out cold air through the first air outlet 51 and the second air outlet 52; when the air purifier is in the warm air mode, the heater 7 is started, and the baffle driving member 32 drives the baffle 31 to cover the first air outlet 51. If the purification fan 4 is started, the purified airflow generated by the purification fan 4 will all flow into the fan duct 2, and together with the air in the fan duct 2, it will be heated by the heater 7 and then flow out toward the second air outlet 52. If the fan 6 is started, the fan airflow generated by the fan 6 will be heated by the heater 7 and then flow out toward the second air outlet 52. In this way, no matter whether any one of the purification fan 4 and the fan 6 is started separately, or both are started at the same time, the air purifier blows out warm air through the second air outlet 52, wherein the switching mechanism 3 can prevent the purified airflow from being blown out without being heated, effectively ensuring that the air blown out by the air purifier is all warm air.

[0042] In summary, the air purifier can realize either the air purification or fan function separately or simultaneously by turning on and off the purification blower 4 and the fan blower 6 separately or simultaneously, or can realize both the air purification and fan functions simultaneously. In addition, the air purifier can also output warm air in combination with the heater 7 and the switching mechanism 3. There is no need to configure additional equipment such as fans and heaters, and the various usage needs of users can be met. Multiple functions are integrated into one, which greatly saves occupied space.

[0043] The air purification and fan functions of the above-mentioned air purifier are respectively realized by a fan, and the two fans can be used independently. In this way, even if one of the fans is damaged, it will not affect the use of the other fan.

[0044] The purification fan 4 and the fan 6 can both use existing cross-flow fans and other fans. The heater 7 can use existing heating devices such as resistance wire heaters 7. The baffle drive 32 can use existing sliding or rotating drive devices such as motors 321.

[0045] See also Figure 2 and Figure 3 As shown, Figure 33 is a second longitudinal cross-sectional view of the air purifier in the embodiment. In one embodiment of the switching mechanism 3, the baffle 31 is rotatably connected to the housing 5, and the baffle 31 contacts the inner wall surface of the first air outlet 51 of the housing 5, and the baffle 31 includes a driven ring gear 311. The baffle driving member 32 includes a motor 321 and a driving gear 322. The motor 321 is installed in the housing 5 by screwing or welding, and the output end of the motor 321 is connected to the driving gear 322 by screwing or welding. The driving gear 322 is meshed with the driven ring gear 311 to drive the baffle 31 to rotate to expose or cover the first air outlet 51. In this way, when the switching mechanism 3 is used, the motor 321 drives the active gear 322 to rotate, so as to drive the driven gear ring 311 to rotate, thereby driving the baffle 31 to rotate in a direction away from or close to the first air outlet 51. When the baffle 31 rotates to a position opposite to the first air outlet 51, the baffle 31 can block the first air outlet 51, so that the purified airflow cannot flow out from the first air outlet 51 and can only flow to the fan duct 2. On the contrary, when the baffle 31 rotates to a position completely offset from the first air outlet 51, the first air outlet 51 is exposed, so that part of the purified airflow can flow out directly from the first air outlet 51, shortening the path of the purified airflow flowing out of the air purifier, thereby reducing air flow losses and increasing the air output of the purification module.

[0046] The motor 321 may use an existing stepping motor 321 so as to accurately control the relative or completely offset positions of the baffle 31 and the first air outlet 51 .

[0047] See also Figure 2 and Figure 3 As shown, in one embodiment of the housing 5, the housing 5 also has an air inlet 53 and a ventilation duct 54 for connecting the purification duct 1 and the fan duct 2. The air inlet 53 is connected to the purification duct 1 and is used to allow external air to flow into the purification duct 1. The air inlet 53, the purification duct 1, the ventilation duct 54 and the fan duct 2 are distributed in sequence from bottom to top. In this way, when the purification fan 4 is started, the external air can be sucked into the housing 5 from the lower end of the housing 5, and after flowing upward along the purification duct 1 for purification, a part of it flows out of the housing 5 toward the first air outlet 51, and the other part flows upward from the ventilation duct 54 into the fan duct 2, and flows out of the housing 5 from the second air outlet 52. The entire working airflow is from bottom to top and from inside to outside, which can effectively prevent dust from falling into the housing 5 from above.

[0048] See also Figure 1 As shown, the housing 5 may be in the shape of a cylindrical shaft, and the air inlet holes 53 may be evenly spaced and distributed on the outer peripheral wall at the bottom of the housing 5, so that air can enter all around the bottom of the air purifier, thereby effectively improving the purification efficiency.

[0049] See also Figure 1 , Figure 2 and Figure 3 As shown, on the basis of the above embodiment, the housing 5 has an air outlet surface 55, the first air outlet 51 is opened on the air outlet surface 55, the first air outlet 51 and the second air outlet 52 are located on the same side of the housing 5, and the first air outlet 51 is located below the second air outlet 52. The air outlet surface 55 is arranged to extend from bottom to top and tilt toward the inside of the housing 5. In this way, the air outlet surface 55 is located on the path of the purified air flow from the purified air duct 1 to the ventilation duct 54, so that most of the purified air flow can flow directly out of the housing 5 from the first air outlet 51, and only a small part of the purified air flow enters the fan air duct 2 upward from the ventilation duct 54, which greatly shortens the path of the purified air flow out of the air purifier, thereby reducing air flow loss, and then increasing the air volume of the purification module; and the air outlet surface 55 can also guide the purified air flow to flow out of the first air outlet 51 obliquely upward, so as to merge with the fan air flow flowing out of the second air outlet 52, and bring the purified air to a farther place, thereby improving the purification effect.

[0050] See also Figure 2 As shown, in an embodiment in which the fan blower 6 realizes the fan function, an air inlet grille 56 and an air outlet grille 57 are provided on the casing 5 by means of screw connection or integral connection, and the air inlet grille 56 and the air outlet grille 57 are both connected to the fan duct 2, and the opening of the air outlet grille 57 is configured as a second air outlet 52. In this way, the flow path of air flowing from the purification duct 1 into the fan duct 2 is longer and the flow loss is larger. If only the purification fan 4 supplies air to generate the fan airflow to the fan duct 2, the air output of the fan module may be insufficient and the energy consumption of the purification fan 4 may be large. However, if the purification fan 4 is turned off and the fan function is realized alone, it will cause the external air to be difficult to flow into the fan duct 2 in large quantities from the purification duct 1. Therefore, an air inlet grille 56 is added to the fan module. When the fan 6 is started, it can drive the external air to flow directly from the air inlet grille 56 into the fan duct 2, greatly shortening the path of air entering the fan duct 2 and reducing air flow losses, so that the fan module can output a large air volume, realize the fan function, and reduce the energy consumption of the air purifier when using the fan function.

[0051] See also Figure 1 , Figure 2 and Figure 3 As shown, on the basis of the above embodiment, the positions of the air inlet grille 56 and the air outlet grille 57 are opposite, and are respectively located on both sides of the heater 7. In this way, the fan 6 is started, driving the external air to pass through the air inlet grille 56, the fan duct 2 and the air outlet grille 57 in sequence to form a fan airflow, and the heater 7 can fully heat the fan airflow passing through the air inlet grille 56 and the air outlet grille 57 to ensure that the warm air output by the air purifier can reach the set temperature.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air purifier, characterized in that: The air purifier includes an air supply mode and a warm air mode, and the air purifier also includes: A casing, wherein the casing is provided with a first air outlet and a second air outlet; A purification fan and a fan fan installed in the housing, a purification air duct is provided between the purification fan and the housing, a fan duct is provided between the fan fan and the housing, the purification air duct is communicated with the first air outlet and the fan duct, and is used for the purification airflow generated by the purification fan to flow toward the first air outlet and the fan duct, the fan duct is communicated with the second air outlet, and is used for the fan airflow generated by the fan fan to flow toward the second air outlet, and a heater is provided in the fan duct; a switching mechanism, comprising a baffle and a baffle driving member disposed in the housing, wherein the baffle driving member is connected to the baffle and drives the baffle to move in a direction away from or close to the first air outlet to expose or cover the first air outlet; Wherein, in the air supply mode, the switching mechanism exposes the first air outlet; in the warm air mode, the switching mechanism blocks the first air outlet, and the heater heats the fan duct.

2. An air purifier according to claim 1, characterized in that: The baffle is rotatably connected to the housing and contacts the inner wall surface of the first air outlet of the housing, and the baffle includes a driven gear ring; The baffle driving member includes a motor and a driving gear. The motor is installed in the housing. The output end of the motor is connected to the driving gear. The driving gear is meshed with the driven gear ring to drive the baffle to rotate to expose or cover the first air outlet.

3. An air purifier according to claim 1, characterized in that: The casing is also provided with an air inlet and a ventilation duct for connecting the purification air duct and the fan air duct. The air inlet is connected to the purification air duct and is used to allow external air to flow into the purification air duct. The air inlet, purification air duct, ventilation duct and fan duct are distributed in sequence from bottom to top.

4. An air purifier according to claim 3, characterized in that: The casing is also provided with an air outlet surface, the first air outlet and the second air outlet are arranged on the same side of the casing, the first air outlet is arranged on the air outlet surface and is located below the second air outlet, the air outlet surface is inclined from bottom to top and extends toward the inside of the casing, and is located between the purification air duct and the ventilation duct.

5. An air purifier according to claim 1, characterized in that: The housing is also provided with an air inlet grille and an air outlet grille, both of which are connected to the fan duct. The air inlet grille is used for allowing external air to flow into the fan duct, and the opening of the air outlet grille is configured as the second air outlet.

6. An air purifier according to claim 5, characterized in that: The air inlet grille and the air outlet grille are arranged relative to each other and are respectively located on two sides of the heater.

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