Multi-stage filter room air purifier

Abstract

This invention relates to the field of air purification equipment, providing a multi-stage filtration indoor air purifier, including a pre-filter module, an ultraviolet disinfection module, a post-filter module, and a drive module. The pre-filter module filters particulate impurities from the air. The ultraviolet disinfection module disinfects and sterilizes the air. The post-filter module filters out toxic gases and odors from the air. The drive module is electrically connected to the pre-filter module, ultraviolet disinfection module, and post-filter module respectively. The ultraviolet disinfection module includes multiple ultraviolet emitters and a mounting bracket. The mounting bracket supports the multiple ultraviolet emitters arranged in a circular array, forming a hollow channel. The air to be purified sequentially passes through the hollow channel of the pre-filter module, the ultraviolet disinfection module, and the post-filter module, thus being filtered. The ultraviolet air purifier provided by this invention filters and then sterilizes the air, resulting in a better purification effect.

Description

Technical Field

[0001] This invention relates to the field of air purification equipment, and more particularly to a multi-stage filtration indoor air purifier. Background Technology

[0002] An air purifier, also known as an "air cleaner," is a product that can adsorb, decompose, and transform various air pollutants, effectively improving air cleanliness. Current air purifiers generally only filter impurities in the air but do not sterilize it, resulting in poor purification effects. Therefore, it is necessary to provide an air purifier that addresses these shortcomings. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that the existing air purifiers generally only filter impurities in the air, but do not sterilize the air, resulting in poor air purification effect. In view of the above-mentioned defects of the existing technology, a new multi-stage filtration indoor air purifier is provided.

[0004] The technical solution adopted by this invention to solve its technical problem is to provide a multi-stage filtration indoor air purifier, including a pre-filter module for filtering particulate impurities in the air, an ultraviolet disinfection module for purifying the air through sterilization and disinfection, a post-filter module for filtering toxic gases and odors in the air, and a drive module. The drive module is electrically connected to the pre-filter module, the ultraviolet disinfection module, and the post-filter module respectively. The ultraviolet disinfection module includes multiple ultraviolet light emitters and a mounting bracket. The mounting bracket supports the multiple ultraviolet light emitters in a circular array, forming a hollow channel. The air to be purified passes sequentially through the hollow channel of the pre-filter module, the ultraviolet disinfection module, and the post-filter module, thereby achieving the filtration of particulate impurities, ultraviolet disinfection and sterilization, and filtration of toxic gases and odors in the air to be filtered.

[0005] Furthermore, there are two mounting brackets, which are arranged at intervals relative to each other, and the array of multiple ultraviolet light emitters is sandwiched between the two mounting brackets, forming the hollow channel.

[0006] Furthermore, it also includes a housing, which includes an air inlet, a receiving space and an air outlet that pass through it in sequence. The air inlet is located adjacent to the pre-filter module and the air outlet is located adjacent to the post-filter module.

[0007] Furthermore, the housing also includes a top wall, side walls, and a base. The side walls form the receiving space to receive the pre-filter module, the ultraviolet disinfection module, and the post-filter module. The top wall covers one end opening of the receiving space, and the base is received at the other end of the receiving space.

[0008] Furthermore, the top wall includes a body and an inclined surface, the air inlet is disposed on the inclined surface, and the inclined surface extends obliquely toward the same side of the body.

[0009] Furthermore, the ultraviolet disinfection module also includes an arc-shaped support body, which is sandwiched between the two mounting brackets to form an arc-shaped receiving space, and the multiple ultraviolet light emitters are disposed within the arc-shaped receiving space.

[0010] Furthermore, a reflective layer is provided on the inner surface of the arc-shaped support to reflect the ultraviolet light beam from the ultraviolet light emitter.

[0011] Furthermore, it also includes a wireless transmitter and a wireless signal receiver, which communicate wirelessly with an external terminal or remote control.

[0012] Compared to existing technologies, the multi-stage filtration indoor air purifier provided by this invention firstly features multiple circular arrays of ultraviolet (UV) emitters forming an air channel within the containment space. Due to the array structure of the UV emitters, the air in the central area after passing through the containment space is fully irradiated with UV light, effectively sterilizing and disinfecting. Secondly, a pre-filter module and a post-filter module are respectively installed at the air inlet and outlet to filter different types of impurities. The pre-filter module only filters particulate impurities, avoiding the blockage of the post-filter module by these impurities, which would reduce the purification effect. The post-filter module filters gaseous impurities; since particulate impurities have already been filtered, it effectively filters out harmful gases and odors while protecting the post-filter module. This multi-stage filtration achieves a better purification effect. Finally, a recessed top wall at the air inlet effectively promotes the smooth entry of external air into the air purifier, preventing air backflow from affecting purification efficiency. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. 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:

[0014] Figure 1 This is a three-dimensional assembly schematic diagram of the first embodiment of the multi-stage filtration indoor air purifier disclosed in this invention.

[0015] Figure 2 yes Figure 1 The diagram shown is an exploded 3D view of the air purifier.

[0016] Figure 3 yes Figure 1 The image shows a side sectional view of the air purifier.

[0017] Figure 4 This is a three-dimensional assembly schematic diagram of the second embodiment of the multi-stage filtration indoor air purifier disclosed in this invention.

[0018] Figure 5 yes Figure 4 The diagram shown is an exploded 3D view of the air purifier.

[0019] Figure 6 yes Figure 4 The image shows a side sectional view of the air purifier. Detailed Implementation

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] First Embodiment

[0022] Please also refer to Figure 1 and Figure 2 ,in Figure 1 This is a three-dimensional assembly schematic diagram of the first embodiment of the multi-stage filtration indoor air purifier disclosed in this invention. Figure 2 yes Figure 1 The diagram shows an exploded perspective view of a multi-stage filtration indoor air purifier. The multi-stage filtration indoor air purifier 10 is used to purify the air in the indoor environment.

[0023] The multi-stage filtration indoor air purifier 10 includes a housing 11, a pre-filter module 13, an ultraviolet disinfection module 15, and a post-filter module 17. The housing 11 forms a receiving space 110 to receive the pre-filter module 13, the ultraviolet disinfection module 15, the post-filter module 17, and the drive module 19.

[0024] The housing 11 includes a through air inlet 111, a receiving space 110, and an air outlet 119. The pre-filter module 13 filters particulate impurities from the air to be filtered, the ultraviolet disinfection module 15 disinfects and sterilizes the air with ultraviolet light, and the post-filter module 17 filters toxic gases and odors. The air to be filtered enters the air purifier 10 through the air inlet 111, and then the filtered air is circulated back into the indoor environment through the air outlet 119. Thus, the air purifier 10 achieves multi-stage filtration and sterilization of indoor air, improving the indoor environment. The drive module 19 is electrically connected to the pre-filter module 13, the ultraviolet disinfection module 15, and the post-filter module 17, respectively.

[0025] The air to be purified enters the air purifier 10 from the indoor environment, and then passes through the pre-filter module 13, the ultraviolet disinfection module 15 and the post-filter module 17 in sequence to achieve the filtration of particulate impurities, ultraviolet disinfection and sterilization, and filtration of toxic gases and odors in the air to be filtered.

[0026] The housing 11 includes a top wall 113, side walls 115, and a base 117. The air inlet 111 is located on the top wall 113. The side walls 115 form a receiving space 110 with openings at both ends. The top wall 113 covers one opening of the receiving space 110. The base 117 is located at the other end of the receiving space 110. The air outlet 119 is located near the other end of the receiving space 110 and penetrates the side wall 115. The air to be purified flows sequentially through the air inlet 111, the receiving space 110, and the air outlet 119, forming a circulation system between the air purifier 10 and the indoor environment outside the air purifier 10.

[0027] The top wall 113 includes a main body 1131 and four inclined surfaces 1133 connected end to end, with the air inlet 111 penetrating through the inclined surfaces 1133. The main body 1131 has a rectangular horizontal plate-like structure. The inclined surfaces 1133 extend from the edge of the main body 1131 toward the same side away from the main body 1131. The main body 1131 and the inclined surfaces 1133 form a recessed receiving portion (not labeled) to accommodate decorative objects such as flower pots.

[0028] The sidewall 115 includes a first sidewall 1151 and a second sidewall 1153 that are movably assembled. The first sidewall 1151 is in the shape of a planar plate. The second sidewall 1153 includes three plate-shaped structures arranged sequentially to form a U-shaped cross-section. The two sides of the first sidewall 1151 are correspondingly engaged with the openings of the U-shaped structure, together forming a hollow receiving space with openings at both ends. The top wall 113 covers one opening of the receiving space 110. The first sidewall 1151 and the second sidewall 1153 are movably assembled via a locking structure.

[0029] The base 117 is correspondingly embedded in the opening at the other end of the receiving space 110 and is spaced apart from the top wall 113. The top wall 113, the base 117 and the side wall 115 form a closed receiving space 110. The pre-filter module 13, the ultraviolet disinfection module 15 and the post-filter module 17 are sequentially received in the receiving space 110 along the direction from the top wall 113 to the base 117.

[0030] Please see again Figure 3 ,yes Figure 1 The image shows a side sectional view of the air purifier. The pre-filter module 13 includes a first filter screen, which is disposed near the top wall 113. The first filter screen effectively filters physical impurities such as dust particles in the indoor air.

[0031] The ultraviolet disinfection module 15 includes two mounting brackets 151 arranged at relative intervals, multiple ultraviolet light emitters 153 arranged in a circular array, a drive circuit board (not shown) and an arc-shaped support body 157.

[0032] The arc-shaped support 157 is sandwiched between the two mounting brackets 151, forming an arc-shaped receiving space. Multiple ultraviolet (UV) emitters 153 are spaced apart within the arc-shaped receiving space and arranged in an arc-shaped array. Each UV emitter 153 generates a UV beam to sterilize and disinfect, removing toxic bacteria from the air. The drive circuit board is electrically connected to each of the multiple UV emitters 153, driving them to operate and purify the air. A reflective layer is provided on the inner surface of the arc-shaped support 157 to reflect the UV beams generated by the UV emitters 153.

[0033] The post-filter module 17 is disposed adjacent to the base 117. The post-filter module 17 effectively filters harmful gases and odors from the air after it has been disinfected by the ultraviolet disinfection module 15.

[0034] The base 117 is equipped with a fan 1171, which rotates according to a set power and direction under the control of a drive signal, driving the air to be purified to circulate along the direction from the air inlet 111 to the air outlet 119, forming a closed-loop air flow system.

[0035] When the air purifier 10 is working, it is placed indoors where there is air to be purified, containing pollutant particles, dust, bacteria, harmful gases, and other impurities. The principle by which the air purifier 10 purifies indoor air is as follows:

[0036] Power is supplied to the drive module 19, which generates drive signals to control the drive circuit board and the fan 1171 to be in working condition.

[0037] Secondly, the operation of the fan 1171 creates a negative pressure in the containment space 110, and unpurified air from the outside enters the containment space 110 through the air inlet 111.

[0038] Then, the first filter element of the pre-filter module 13 filters and purifies the air before it enters the area where the ultraviolet disinfection module 15 is located.

[0039] Furthermore, the ultraviolet light emitter 153 sterilizes and disinfects the air filtered by the pre-filter module 13.

[0040] Furthermore, the air sterilized and disinfected by the ultraviolet light emitter 153 is filtered again by the post-filter module 17 and then output to the air purifier 10 through the air outlet 119.

[0041] This completes the air purification process.

[0042] Compared to existing technologies, firstly, the air purifier 10 of the present invention is provided with a plurality of ultraviolet light emitters 153 arranged in a circular array, forming an air channel within the receiving space 110. Due to the array arrangement of the ultraviolet light emitters 153, the air in the central area after passing through the receiving space 110 can be fully irradiated by ultraviolet light, effectively sterilizing and disinfecting.

[0043] Secondly, a pre-filter module 13 and a post-filter module 17 are respectively installed at the air inlet 111 and the air outlet 119 to filter different types of impurities. The pre-filter module 13 only filters particulate impurities, avoiding the defect of reduced purification effect caused by the blockage of the post-filter module 17 by this type of impurity. The post-filter module 17 is used to filter gaseous impurities. Since the impurity particles have been filtered, harmful gases and odors are also fully filtered out on the basis of protecting the post-filter module. The multi-level filtration achieves better purification effect.

[0044] Finally, a recessed top wall 113 is provided at the air inlet 111, which effectively promotes the external gas to smoothly enter the air purifier 10 and avoids air backflow from affecting the purification efficiency.

[0045] As a further improvement to the above embodiment, the multi-stage filtration indoor air purifier 10 also includes a wireless transmitter and a wireless signal receiver. The transmitter wirelessly transmits the air purification data of the multi-stage filtration indoor air purifier 10 to a server or mobile terminal in real time to obtain the purification parameters of the multi-stage filtration indoor air purifier 10. Simultaneously, the wireless signal receiver receives control signals from the handheld terminal to control the operating status of the multi-stage filtration indoor air purifier 10, such as purification efficiency, operating mode, and airflow direction. The handheld terminal can be a remote control or a mobile phone.

[0046] Second Embodiment

[0047] Please also refer to Figure 4 , Figure 5 and Figure 6 ,in Figure 4 This is a three-dimensional assembly diagram of the air purifier disclosed in the second embodiment of the present invention. Figure 5 yes Figure 4 The diagram shown is an exploded 3D view of the air purifier. Figure 6 yes Figure 4 The image shows a side sectional view of the air purifier. The air purifier 20 is basically the same as the air purifier 10 in the first embodiment, except that the air inlet 211 of the top wall 213 is set higher than the inclined surface 2133, so that indoor air enters the air purifier 10 from the side, which is conducive to the circulation of air over a large range and expands the purification space volume.

[0048] Compared to existing technologies, the air purifier 20 of this embodiment has a structure in which the body 2131 is higher than the inclined surface 2133 at the air inlet 211. Unpurified air enters the air purifier 20 from the side, which is conducive to forming an air circulation system, improving air flow rate, and obtaining better purification effect.

[0049] Furthermore, flower pots and other potted plants or decorative objects can be placed on the main body 2131 to improve the aesthetic effect and enhance practicality.

[0050] The above descriptions are merely two embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A multi-stage filtration indoor air purifier, comprising: The pre-filter module filters out particulate impurities in the air; Ultraviolet disinfection module, purifying the air through sterilization and disinfection; The post-filter module filters out toxic gases and odors from the air. A drive module is electrically connected to the pre-filter module, the ultraviolet disinfection module, and the post-filter module, respectively. The ultraviolet disinfection module includes multiple ultraviolet emitters and a mounting bracket. The mounting bracket supports the multiple ultraviolet emitters arranged in a circular array, forming a hollow channel. The air to be purified sequentially passes through the hollow channel of the pre-filter module, the ultraviolet disinfection module, and the post-filter module, achieving filtration of particulate impurities, ultraviolet disinfection, and filtration of toxic gases and odors in the air to be filtered. It also includes a housing, which includes an air inlet, a receiving space and an air outlet that pass through it in sequence. The air inlet is located near the pre-filter module and the air outlet is located near the post-filter module. The housing also includes a top wall, side walls, and a base. The side walls form the receiving space to receive the pre-filter module, the ultraviolet disinfection module, and the post-filter module. The top wall covers one end opening of the receiving space, and the base is received at the other end of the receiving space. The top wall includes a body and an inclined surface, the air inlet is located on the inclined surface, and the inclined surface extends obliquely toward the same side of the body; The body and the inclined surface form a recessed receiving portion.

2. The multi-stage filtration indoor air purifier according to claim 1, characterized in that, The number of mounting brackets is two, and the two mounting brackets are arranged at a distance from each other. The array of multiple ultraviolet light emitters is sandwiched between the two mounting brackets, and the multiple ultraviolet light emitters form the hollow channel.

3. The multi-stage filtration indoor air purifier according to claim 2, characterized in that, The ultraviolet disinfection module also includes an arc-shaped support body, which is sandwiched between the two mounting brackets to form an arc-shaped receiving space, and the multiple ultraviolet light emitters are located in the arc-shaped receiving space.

4. The multi-stage filtration indoor air purifier according to claim 3, characterized in that, A reflective layer is provided on the inner surface of the arc-shaped support to reflect the ultraviolet light beam from the ultraviolet light emitter.

5. The multi-stage filtration indoor air purifier according to claim 1, characterized in that, It also includes a wireless transmitter and a wireless signal receiver, enabling wireless communication with external terminals or remote controls.

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