Air purifier

Abstract

The utility model provides an air purifier. The air purifier comprises a support, a first electrostatic film and a differential pressure generator, and the first electrostatic film is arranged on the support and used for generating an electrostatic field to adsorb particulate matter in air; the transformer is electrically connected with the first electrostatic film and used for being connected with a power source so as to provide unipolar voltage for the first electrostatic film. According to the technical scheme, the cleaning convenience of the air purifier is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to an air purifier. BACKGROUND

[0002] The air purifier is a device for purifying and cleaning air, and can be used to remove solid and gaseous pollutants in the air. In the related art air purifier, the filter screen for filtering pollutants in the air often adopts consumables or a multi-layer structure, so that the filter screen is not easy to clean, thereby increasing the use cost of the user and reducing the user experience. CONTENT

[0003] The main purpose of the present application is to provide an air purifier, which aims to improve the cleaning convenience of the air purifier.

[0004] To achieve the above purpose, the air purifier provided by the present application comprises a support, a first electrostatic film and a transformer, the first electrostatic film is arranged on the support and is used to generate an electrostatic field to adsorb particulate matters in the air; the transformer is electrically connected with the first electrostatic film and is used to connect a power supply to provide a unipolar voltage to the first electrostatic film.

[0005] In some embodiments of the present application, the support is annular.

[0006] In some embodiments of the present application, the number of the first electrostatic films is two, and the two first electrostatic films are arranged on the inner surface and the outer surface of the support, respectively.

[0007] In some embodiments of the present application, the air purifier further comprises a housing, the support is connected with the housing and is arranged at least partially in the housing; a gas flow channel is formed between the housing and the support, and the first electrostatic film is contained in the gas flow channel.

[0008] In some embodiments of the present application, the air purifier further comprises a second electrostatic film, the second electrostatic film is arranged in the gas flow channel and is spaced apart from the first electrostatic film along a direction perpendicular to the first direction, and the electrical property of the second electrostatic film is opposite to that of the first electrostatic film.

[0009] In some embodiments of the present application, the housing comprises a side wall portion and an end wall portion, the side wall portion is annular in cross-sectional shape perpendicular to the first direction, and the end wall portion is connected to one end of the side wall portion along the first direction; the side wall portion, the end wall portion and the support jointly form the gas flow channel, and / or the end wall portion and the support jointly form the gas flow channel; the first electrostatic film is arranged on the surface of the support close to the side wall portion, and the second electrostatic film is arranged on the side wall portion.

[0010] In some embodiments of the present application, the air purifier further comprises a flow divider, which is arranged on the side of the support away from the side wall portion, and the first electrostatic film is arranged on the surface of the support close to and / or away from the flow divider.

[0011] In some embodiments of the present application, the second electrostatic film is arranged on the surface of the flow divider close to and / or away from the support.

[0012] In some embodiments of the present application, the support comprises a body portion and a first mounting portion connected thereto, the first mounting portion is formed in cooperation with the housing, and the body portion is arranged in the housing; the body portion is provided with a plurality of gas outlets penetrating in a direction perpendicular to the first direction, and the plurality of gas outlets are arranged at intervals along the periphery of the body portion.

[0013] In some embodiments of the present application, the plurality of gas outlets are arranged at one end of the body portion close to the first mounting portion; the air purifier further comprises a pressure difference generator arranged on the support and configured to drive the ambient air to flow from one end to the other end of the first electrostatic film in the first direction; and the pressure difference generator is arranged at one end of the gas flow channel close to the gas outlet.

[0014] In some embodiments of the present application, the air purifier further comprises a cleaning device, which comprises a cleaning member arranged on the inner surface or the outer surface of the support and movable back and forth in the first direction.

[0015] In some embodiments of the present application, the cleaning device further comprises a driving member connected to the cleaning member to drive the cleaning member to move.

[0016] In some embodiments of the present application, the air purifier further comprises a filter screen connected to the body portion and covering the gas outlets.

[0017] In some embodiments of the present application, the air purifier further comprises an ion generator arranged on the support and configured to emit ions into the environment to charge the particulate matters in the environment, and the polarity of the ions emitted by the ion generator is opposite to the polarity of the electrostatic film.

[0018] The technical solution of the present application, by arranging the air purifier to comprise a first electrostatic film and a transformer, uses the transformer to convert the power supply voltage into a unipolar voltage and then outputs it to the first electrostatic film, so that the first electrostatic film can generate an electrostatic field, and then uses the electrostatic field generated by the first electrostatic film to adsorb the particulate matters in the air. In this way, the first electrostatic film is used as a whole to adsorb the particulate matters in the air, which can be repeatedly used without consuming consumables. At the same time, the adsorption surface of the first electrostatic film does not have a multi-layer structure that blocks each other, and the particulate matters can be directly adsorbed on the surface of the first electrostatic film under the action of the electrostatic field, which is conducive to cleaning. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below only illustrate some of the embodiments of the present application, and are not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.

[0020] Figure 1 is a schematic view of the air purifier provided by the present application;

[0021] Figure 2 is a schematic view of the air purifier provided by the present application;

[0022] Figure 3 is Figure 1 is a sectional view of the air purifier shown along the line A-A;

[0023] Figure 4 is a sectional view of another embodiment of the air purifier provided by the present application;

[0024] Figure 5 is a sectional view of still another embodiment of the air purifier provided by the present application;

[0025] Figure 6 is a partial sectional view of part of the structure of the air purifier provided by the present application.

[0026] Brief Description of the Drawings: 100, air purifier; 10, support; 11, body part; 111, gas outlet; 12, first mounting part; 20, first electrostatic film; 30, transformer; 40, housing; 41, side wall part; 42, end wall part; 50, second electrostatic film; 60, flow divider; 70, cleaning device; 71, cleaning member; 80, filter screen; 90, differential pressure generator; 95, ion generator;

[0027] X, first direction; 101, gas flow channel; 102, air outlet; 103, air inlet.

[0028] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.

[0030] It should be noted that all the direction indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the direction indications will also change accordingly.

[0031] In the present application, unless specifically defined and limited otherwise, the terms "connection", "fixed", and the like should be understood in a broad sense, for example, "fixed" can be fixed connection, or detachable connection, or integrated; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium; can be internal connection of two elements or interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] In addition, the description such as "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the fact that the technical solutions can be realized by those skilled in the art. When the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0033] The air purifier is a device for purifying and cleaning air, and the air purifier can generally be used to remove solid and gaseous pollutants in the air. In the related art air purifier, the filter screen for filtering pollutants in the air often uses consumables or multi-layer structure, so that the filter screen is not easy to clean, thereby increasing the use cost of the user and reducing the user experience.

[0034] Specifically, the mainstream air purifier in the related art mainly uses the following two ways to adsorb particulate matters in the air. One is to adsorb particulate matters in the air by HEPA net (High Efficiency Particulate Air Filter) and other consumables. Such a way needs the user to replace the HEPA net regularly, and the material cost is high. The second is to adsorb particulate matters in the air by using an electric purification net. However, the electric purification net in the related art usually adopts a form of positive and negative electrodes, i.e. a positive and negative electrode interlaced arrangement, so that the particulate matters hidden in each layer are difficult to be removed in the cleaning process, and secondary pollution is easy to occur.

[0035] Based on this, the inventor designs a new air purifier, aiming to reduce the cleaning difficulty of the air purifier and reduce the possibility of secondary pollution.

[0036] Please refer to Figures 1 to 3 The air purifier 100 provided in the present application comprises a support 10, a first electrostatic film 20 and a transformer 30. The first electrostatic film 20 is arranged on the support 10 and is used to generate an electrostatic field to adsorb particulate matters in the air. The transformer 30 is electrically connected with the first electrostatic film 20 and is used to connect a power supply to provide a unipolar voltage to the first electrostatic film 20.

[0037] The air purifier 100 is used to filter and collect particulate matters such as dust, pollen and bacteria in the air to achieve the effect of cleaning the air.

[0038] The support 10 is a structure used to support the first electrostatic film 20 in the air purifier 100. Meanwhile, the support 10 can also be used to form a channel for gas flow so that the first electrostatic film 20 filters the particulate matters in the air flowing continuously.

[0039] In the embodiments of the present application, the support 10 can be in a solid structure. At this time, the first electrostatic film 20 can be arranged on the outer surface of the support 10 to adsorb the particulate matters flowing through the outer surface of the support 10 by using the first electrostatic film 20. Alternatively, in some embodiments, the support 10 can be in a ring shape in the cross-sectional shape perpendicular to the first direction X. At this time, the first electrostatic film 20 can be arranged on the inner surface and / or the outer surface of the support 10. The above two ways can be selected according to the position of the gas flow channel.

[0040] In the embodiments of the present application, the support 10 can be but not limited to a circular, elliptical or rectangular shape in the cross-sectional shape perpendicular to the first direction X.

[0041] The first electrostatic film 20 is used to generate an electrostatic field after being powered on, and then the particulate matters in the air carrying opposite charges are adsorbed by using the electrostatic field, or the particulate matters flowing into the electrostatic field are polarized and then adsorbed by using the electrostatic field, so as to achieve the adsorption effect of the particulate matters.

[0042] In the embodiments of the present application, the first electrostatic film 20 can be arranged in a ring structure to be arranged on the inner surface and / or the outer surface of the support 10 during assembly to obtain a larger adsorption area. Alternatively, the first electrostatic film 20 can be arranged in a non-ring structure to be arranged on a side surface of the support 10 during assembly, and then the particulate matters in the air flowing through the side of the support 10 are adsorbed. The structure of the first electrostatic film 20 can be selected according to the use, structure and use environment of the air purifier 100.

[0043] The first electrostatic film 20 is arranged on the support 10. In possible implementations, the first electrostatic film 20 can be arranged in connection with the support 10 to improve the stability of the first electrostatic film 20 arranged on the support 10. Alternatively, in some embodiments, the first electrostatic film 20 can be arranged in abutment with the support 10, and the first electrostatic film 20 can be abutted against the support 10 through other connecting members to further improve the efficiency of subsequent maintenance, replacement and cleaning of the first electrostatic film 20.

[0044] The transformer 30 is configured to convert the power supply into unipolar voltage and output the unipolar voltage to the first electrostatic film 20. In the embodiments of the present application, the power supply connected to the transformer 30 can be ordinary household alternating current, or can be a direct current power supply built in the air purifier 100. The transformer 30 is configured to convert the power supply voltage into unipolar voltage to output the unipolar voltage to the first electrostatic film 20, so that the first electrostatic film 20 generates an electrostatic field after being powered on, thereby adsorbing particulate matters in the air flowing through the surface of the first electrostatic film 20.

[0045] Of course, in some embodiments of the present application, multiple electrostatic films can be arranged in the air purifier 100. In this case, the transformer 30 can be electrically connected to the other electrostatic films to provide unipolar voltage to different electrostatic film structures. For example, in some embodiments, the air purifier 100 can include multiple first electrostatic films 20 and multiple second electrostatic films. The multiple first electrostatic films 20 and the multiple second electrostatic films can be electrically connected to the transformer 30 to provide unipolar voltage to different first electrostatic films 20 and different second electrostatic films by the transformer 30.

[0046] For example, in some embodiments of the present application, the transformer can be configured to boost the voltage output by the power supply to no more than 15 Kv.

[0047] According to the air purifier 100 of the embodiments of the present application, the air purifier 100 includes the first electrostatic film 20 and the transformer 30. The transformer 30 is configured to convert the power supply voltage into unipolar voltage and output the unipolar voltage to the first electrostatic film 20, so that the first electrostatic film 20 can generate an electrostatic field, and the electrostatic field generated by the first electrostatic film 20 can adsorb particulate matters in the air. In this way, the first electrostatic film 20 can be repeatedly used to adsorb particulate matters in the air without consuming consumables. In addition, the adsorption surface of the first electrostatic film 20 does not have a multi-layer structure that blocks each other, and the particulate matters can be directly adsorbed on the surface of the first electrostatic film 20 under the action of the electrostatic field, which is conducive to cleaning.

[0048] In some embodiments of the present application, the support 10 can be annular, that is, the support 10 has an annular shape in a cross section perpendicular to the first direction X. At this time, the first electrostatic film 20 can be annularly arranged on the inner surface and / or the outer surface of the support 10 in an annular shape to maximize the arrangement area of the first electrostatic film 20, thereby improving the capturing efficiency of the first electrostatic film 20 for particulate matters in the air and improving the air purification effect of the air purifier 100.

[0049] Preferably, the support 10 can be arranged in a circular ring shape. At this time, when the first electrostatic film 20 is annularly arranged on the inner surface or the outer surface of the support 10, the first electrostatic film 20 also has a circular ring shape after being attached to the support 10, so that the electrostatic field formed after the first electrostatic film 20 is electrified is more uniform, so that the adsorption effect of the first electrostatic film 20 on particulate matters is uniform at each position on the surface of the first electrostatic film 20, which is conducive to the uniform distribution of particulate matters on the surface of the first electrostatic film 20, and further reduces the difficulty of cleaning the first electrostatic film 20.

[0050] The annular arrangement of the first electrostatic film 20 on the inner surface and / or the outer surface of the support 10 means that the position of the first electrostatic film 20 can be selected according to the position of the gas flow channel in the air purifier 100. When the air flows through the internal space of the support 10, the first electrostatic film 20 can be arranged on the inner surface of the support 10. When the air flows through the external space of the support 10, the first electrostatic film 20 can be arranged on the outer surface of the support 10. When the air can flow through the internal space and the external space of the support 10 at the same time, the first electrostatic film 20 can be arranged on the inner surface and the outer surface of the support 10 at the same time to improve the adsorption effect of the first electrostatic film 20 on particulate matters in the air.

[0051] It should be noted that in these embodiments of the present application, since the principle of air purification is to use the electrostatic field generated by the first electrostatic film 20 to adsorb particulate matters in the air with opposite charges to the electrostatic field, or to polarize and adsorb particulate matters in the air using the electrostatic field, and the first electrostatic film 20 is arranged on the inner surface or the outer surface of the support 10. Preferably, the first electrostatic film 20 can be arranged on the outer surface of the support 10 to reduce the overlap of the electrostatic field generated by the first electrostatic film 20, the probability that the particulate matters in the air are pulled in multiple directions in the electrostatic field at the same time, so that the direction of force on the particulate matters in the air is uniform when passing through the electrostatic field, which can improve the adsorption effect of the first electrostatic film 20 on the particulate matters in the air.

[0052] In some embodiments of the present application, the number of first electrostatic films 20 is two, and the two first electrostatic films 20 are arranged on the inner surface and the outer surface of the support 10, respectively.

[0053] In the embodiments of the present application, the first electrostatic film 20 is arranged on the inner surface and the outer surface of the support 10, so that the air purifier 100 can be designed to have air flow channels on both the inner and outer surfaces of the support 10, thereby increasing the air flow flux of the air purifier 100 and improving the air purification efficiency.

[0054] In some embodiments of the present application, the two first electrostatic films 20 can be arranged to have the same electrical property. In this way, the functional requirements of the transformer 30 can be simplified, and the transformer 30 can be used to uniformly convert the voltage provided by the power supply into a single-pole voltage of the same polarity and then output to the two first electrostatic films 20, so that the two first electrostatic films 20 are used to generate electrostatic fields of the same electrical charge, and the structure is simple and easy to implement.

[0055] Meanwhile, in the embodiments in which the two first electrostatic films 20 are arranged on the inner surface and the outer surface of the support 10, respectively, the polarity of the two first electrostatic films 20 can be arranged to be the same, which can further improve the adsorption effect of each first electrostatic film 20 on particulate matters in the air.

[0056] For example, in some embodiments, the two first electrostatic films 20 can be arranged to generate electrostatic fields of positive charges, and the two first electrostatic films 20 are arranged on the inner surface and the outer surface of the support 10, respectively. In this case, after the particulate matters with negative charges in the air are captured and adsorbed by the first electrostatic film 20 located on the inner surface or the outer surface of the support 10, the positive charges in the electrostatic field generated by the other first electrostatic film 20 located on the other side also have an adsorption effect on the particulate matters, thereby further strengthening the adsorption effect of the first electrostatic film 20 on the particulate matters.

[0057] In some embodiments of the present application, the air purifier 100 further comprises a housing 40, the support 10 is connected to the housing 40 and at least partially arranged in the housing 40; the housing 40 and the support 10 form a gas flow channel 101, and the first electrostatic film 20 is contained in the gas flow channel 101.

[0058] The housing 40 is an outer structural member of the air purifier 100, which is used to define the outer shape of the air purifier 100 and cooperate with the support 10 to provide support for other components of the air purifier 100.

[0059] The support 10 is connected to the housing 40 and at least partially arranged in the housing 40, which means that the housing 40 can be arranged as an enclosing structure having a containing space, and at least part of the support 10 can be contained in the containing space of the housing 40 during the assembly of the air purifier 100, so that the housing 40 and the support 10 form a gas flow channel 101.

[0060] Exemplarily, the shell 40 can be configured as a half-enclosing structure with one open end and in a cross-sectional shape of a ring in the direction perpendicular to the first direction X. When assembled, the bracket 10 can be inserted into the accommodating space of the shell 40 along the first direction X, and one end of the bracket 10 along the first direction X is connected to the end wall of the open end of the shell 40. At this time, the space between the bracket 10 and the shell 40 can be used as the gas flow channel 101 for circulating the air in the air purifier 100.

[0061] The connection between the bracket 10 and the shell 40 can be implemented in a detachable manner such as threaded connection, connector connection, buckle connection, etc., so as to facilitate the maintenance, replacement and cleaning in the subsequent use process. Alternatively, in some embodiments, the bracket 10 and the shell 40 can be fixedly connected in a manner of welding or even one-piece forming, so as to strengthen the structural consistency between the bracket 10 and the shell 40 and enhance the reliability of the product.

[0062] In the embodiments of the present application, the shell 40 can include the air outlet 102 and the air inlet 103, and the air outlet 102 and the air inlet 103 are respectively arranged at the two ends of the gas flow channel 101 along the first direction X. In this way, the external air can continuously flow into the gas flow channel 101 through the air inlet 103 and flow out of the gas flow channel 101 through the air outlet 102, so as to realize the air circulation in the environment space.

[0063] Meanwhile, arranging the air outlet 102 and the air inlet 103 at the two ends of the gas flow channel 101 along the first direction X can increase the flow length of the gas in the gas flow channel 101. Under the condition of a certain gas flow rate, the residence time of the gas in the gas flow channel 101 can be increased, which is more conducive to the adsorption of particulate matters in the air by the air purifier 100 and improves the air purification degree.

[0064] The first electrostatic membrane 20 is accommodated in the gas flow channel 101, that is, the position of the first electrostatic membrane 20 can be selected according to the position of the gas flow channel 101. In the embodiment in which the support 10 is a solid structure, the gas flow channel 101 is surrounded by the outer surface of the support 10 and the side wall and end wall of the shell 40. At this time, the first electrostatic membrane 20 can be arranged to be connected to the outer surface of the support 10, so as to be accommodated in the gas flow channel 101. Correspondingly, in the embodiment in which the support 10 is a hollow ring structure, the gas flow channel 101 can also be surrounded by the inner surface of the support 10 and the end wall of the shell 40, that is, the gas flow channel 101 is located on the inner side of the support 10. At this time, the gas flow channel 101 can be arranged on the side close to the outer surface of the support 10 and the side close to the inner surface of the support 10. At this time, the first electrostatic membrane 20 can be arranged to be connected to the inner surface of the support 10 and / or the outer surface of the support 10, so as to use the first electrostatic membrane 20 to adsorb the particulate matters in the air flowing into the gas flow channel 101.

[0065] Please refer to Figures 1 to 4 In some embodiments of the present application, the air purifier 100 further comprises a second electrostatic membrane 50, which is arranged in the gas flow channel 101 and is arranged in a direction perpendicular to the first direction X.

[0066] The air purifier 100 further comprises a second electrostatic membrane 50, which is arranged in the gas flow channel 101. This means that the second electrostatic membrane 50 can also be connected to the transformer 30, so as to use the transformer 30 to convert the power supply voltage and provide a unipolar voltage to the second electrostatic membrane 50, so that the second electrostatic membrane 50 can also form an electrostatic field to adsorb the particulate matters in the air in the gas flow channel 101.

[0067] The second electrostatic membrane 50 is arranged in a direction perpendicular to the first direction X, that is, the second electrostatic membrane 50 and the first electrostatic membrane 20 jointly adsorb the particulate matters in the air on both sides of the gas flow channel 101, which can further improve the air purification efficiency of the air purifier 100.

[0068] In some embodiments of the present application, the electrical property of the second electrostatic membrane 50 can be opposite to that of the first electrostatic membrane 20.

[0069] The electrical property of the second electrostatic membrane 50 and the electrical property of the first electrostatic membrane 20 refer to the electrical property of the charged ions in the electrostatic field generated by electrifying the second electrostatic membrane 50 and the first electrostatic membrane 20.

[0070] In some embodiments of the present application, the power supply voltage is converted by the transformer 30 and output to the first electrostatic film 20 and the second electrostatic film 50, and the transformer 30 is used to output a unipolar voltage to the first electrostatic film 20 and the second electrostatic film 50, so that the first electrostatic film 20 and the second electrostatic film 50 can generate an electrostatic field after being powered on.

[0071] The electrical property of the second electrostatic film 50 is opposite to that of the first electrostatic film 20, so that one of the first electrostatic film 20 and the second electrostatic film 50 can push the particles with another kind of electric property to the other side while capturing and adsorbing the particles with one kind of electric property in the air, so that the capturing and adsorbing effect of the first electrostatic film 20 and the second electrostatic film 50 on the particles in the air can be improved at the same time.

[0072] For example, in some embodiments, the first electrostatic film 20 can be configured to generate a positively charged electrostatic field, and the second electrostatic film 50 can be configured to generate a negatively charged electrostatic field. In this way, due to the principle that like charges attract and opposite charges repel, the first electrostatic film 20 can push the positively charged particles in the air to the side of the second electrostatic film 50 while capturing and adsorbing the negatively charged particles in the air, so that the positively charged particles in the air can be closer to the second electrostatic film 50 during the flow of the air, and thus be more easily captured and adsorbed by the second electrostatic film 50; similarly, the second electrostatic film 50 can push the negatively charged particles in the air to the side of the first electrostatic film 20 while capturing and adsorbing the positively charged particles in the air, so as to improve the capturing and adsorbing effect of the first electrostatic film 20 on the negatively charged particles in the air.

[0073] In some embodiments of the present application, the shell 40 includes a side wall portion 41 and an end wall portion 42, the side wall portion 41 has a ring shape in a cross section perpendicular to the first direction X, and the end wall portion 42 is connected to one end of the side wall portion 41 along the first direction X; the side wall portion 41, the end wall portion 42 and the bracket 10 jointly form a gas flow channel 101, and / or the end wall portion 42 and the bracket 10 jointly form the gas flow channel 101.

[0074] In some embodiments of the present application, the shell 40 includes a side wall portion 41 and an end wall portion 42, and the side wall portion 41 has a ring shape in a cross section perpendicular to the first direction X, and the end wall portion 42 is connected to one end of the side wall portion 41 along the first direction X. That is, the shell 40 is a half-enclosing structure with an open end, and the open end of the shell 40 is the aforementioned air outlet 102.

[0075] The side wall portion 41, the end wall portion 42 and the support 10 jointly enclose the gas flow channel 101. In order to ensure that external air can smoothly enter the gas flow channel 101, the air inlet 103 can be arranged on the side wall portion 41, so as to provide a space for arranging the air inlet 103 by using the large area of the side wall portion 41. Of course, in some embodiments, the air inlet 103 can also be arranged on the region of the end wall portion 42 that coincides with the gas flow channel 101 in the first direction X.

[0076] The end wall portion 42 and the support 10 jointly enclose the gas flow channel 101, which means that, after the support 10 is installed on the shell 40, the end wall portion 42 and the support 10 jointly enclose the gas flow channel 101. In order to ensure that external air can smoothly enter the gas flow channel 101, the air inlet 103 needs to be arranged on the end wall portion 42. The above two modes can be freely selected as required, and the present application does not limit this.

[0077] In some embodiments of the present application, the first electrostatic film 20 is arranged on the surface of the support 10 close to the side wall portion 41, and the second electrostatic film 50 is arranged on the side wall portion 41.

[0078] The first electrostatic film 20 is arranged on the surface of the support 10 close to the side wall portion 41, that is, the first electrostatic film 20 is arranged on the outer surface of the support 10.

[0079] The second electrostatic film 50 is arranged on the side wall portion 41, so that the second electrostatic film 50 and the first electrostatic film 20 are arranged in a spaced manner in a direction perpendicular to the first direction X. The possible implementation manner is similar to the manner in which the first electrostatic film 20 is arranged on the support 10, and the first electrostatic film 20 and the second electrostatic film 50 can be connected by fixed connection modes such as gluing and embedding, or can be connected by detachable connection modes such as buckling and magnetic attraction.

[0080] Please refer to Figures 1 to 6 In some embodiments of the present application, the air purifier 100 further comprises a flow dividing piece 60, which is arranged on the side of the support 10 away from the side wall portion 41, and the first electrostatic film 20 is arranged on the surface of the support 10 close to and / or away from the flow dividing piece 60.

[0081] The flow dividing piece 60 is arranged on the side of the support 10 away from the side wall portion 41, which means that, in the embodiment in which the end wall portion 42 and the support 10 jointly enclose the gas flow channel 101, the gas flow channel 101 is formed in the interior of the support 10 away from the side wall portion 41. At this time, if the first electrostatic film 20 is directly arranged on the inner surface of the support 10 away from the side wall portion 41, the electric field attraction force generated by the first electrostatic film 20 after being electrified is a force uniformly directed to the periphery, which further causes the phenomenon that different parts of the first electrostatic film 20 overlap in the adsorption of particulate matters in the air, and finally causes the particulate matters in the air to be difficult to be completely captured by the first electrostatic film 20, resulting in a decrease in the air purification effect.

[0082] Therefore, by arranging the flow distributor 60 on the side of the support 10 away from the side wall 41, the flow distributor 60 can be used to change the flow mode of the air in the gas flow channel 101, i.e. the flow distributor 60 occupies a central position in the gas flow channel 101, and when the external air enters the gas flow channel 101 through the air inlet 103, it will flow to the periphery under the action of the flow distributor 60, thereby shortening the distance between the particulate matter in the air and the first electrostatic film 20, and making it easier for the particulate matter to be captured and adsorbed by the first electrostatic film 20.

[0083] The first electrostatic film 20 is arranged on the surface of the support 10 close to and / or away from the flow distributor 60, which means that the arrangement of the first electrostatic film 20 needs to be selected according to the arrangement position of the gas flow channel 101. For example, in some embodiments, the gas flow channel 101 is only formed on the side of the support 10 away from the flow distributor 60, and in this case, the first electrostatic film 20 can be arranged on the surface of the support 10 away from the flow distributor 60; in some embodiments, the gas flow channel 101 is only formed between the support 10 and the flow distributor 60, and in this case, the first electrostatic film 20 can be arranged on the surface of the support 10 close to the flow distributor 60; in some embodiments, the gas flow channel 101 is formed on the surfaces of the support 10 close to and away from the flow distributor 60, and in this case, the number of first electrostatic films 20 can be two, and the two first electrostatic films 20 are arranged on the surfaces of the support 10 close to and away from the flow distributor 60, respectively.

[0084] In some embodiments of the present application, the second electrostatic film 50 is arranged on the surface of the flow distributor 60 close to and / or away from the support 10.

[0085] In the embodiment in which the flow distributor 60 is a solid structure, the second electrostatic film 50 can be arranged on the surface of the flow distributor 60 close to the support 10. In this way, by arranging the second electrostatic film 50 on the surface of the flow distributor 60 close to the support 10, i.e. in the gas flow channel 101, the first electrostatic film 20 and the second electrostatic film 50 are used simultaneously to adsorb the particulate matter in the air, which can further increase the filtering effect of the particulate matter in the air and improve the air purification efficiency.

[0086] Correspondingly, in the embodiment in which the flow distributor 60 is a hollow cylindrical structure, the second electrostatic film 50 can also be arranged on the surface of the flow distributor 60 away from the support 10 according to the formation of the gas flow channel 101; or, the number of second electrostatic films 50 can be two, and the two second electrostatic films 50 are arranged on the surface of the flow distributor 60 close to the support 10 and the surface of the flow distributor 60 away from the support 10, respectively.

[0087] It should be noted that in the embodiment in which the flow distributor 60 is a hollow cylindrical structure and the gas flow channel 101 is formed on the inner surface of the flow distributor 60, a flow distributor (not shown in the figure) can be further arranged inside the flow distributor 60 and spaced from the inner surface of the flow distributor 60 to continue the flow distribution work inside the flow distributor 60.

[0088] In some embodiments of the present application, the bracket 10 comprises a body portion 11 and a first mounting portion 12 connected to each other, the first mounting portion 12 is formed in cooperation with the shell 40, and the body portion 11 is arranged in the shell 40; the body portion 11 is provided with a plurality of gas outlets 111 penetrating through the body portion 11 in a direction perpendicular to the first direction X, and the plurality of gas outlets 111 are arranged at intervals along the periphery of the body portion 11.

[0089] The body portion 11 is a structural member of the bracket 10 and is used to define the structure of the bracket 10. In these embodiments of the present application, the body portion 11 can be but is not limited to a hollow annular structure or a solid structure.

[0090] The first mounting portion 12 is a member for connecting the bracket 10 to the shell 40, wherein the first mounting portion 12 is connected to the body portion 11, which means that the first mounting portion 12 and the body portion 11 can be connected by means such as detachable connection, fixed connection, etc.

[0091] The first mounting portion 12 is formed in cooperation with the shell 40, and possible implementation is that the first mounting portion 12 and the shell 200 can be connected by means such as detachable connection, fixed connection, etc. In some embodiments, the first mounting portion 12 and the body portion 11 can also be arranged in abutting cooperation to facilitate the assembly and disassembly between the annular bracket 10 and the shell 200.

[0092] The body portion 11 is arranged in the shell 40, and possible implementation is that the first mounting portion 12 can be arranged at one end of the body portion 11 along the first direction X, so that after the first mounting portion 12 is connected to one end of the side wall portion 41 along the first direction X, the body portion 11 is arranged in the shell 40 and spaced from the side wall portion 41 to form the aforementioned gas flow channel 101.

[0093] The body portion 11 is provided with a plurality of gas outlets 111 penetrating through the body portion 11 in a direction perpendicular to the first direction X, and the plurality of gas outlets 111 are arranged at intervals along the periphery of the body portion 11. Among them, the gas outlet 111 is used to communicate the gas flow channel 101 with the external environment, thereby realizing the circulation of ambient air in the air purifier 100.

[0094] That is, in these embodiments of the present application, the circulation path of ambient air in the air purifier 100 is that ambient air enters the gas flow channel 101 through the air inlet 103, and after passing through the plurality of gas outlets 111 in the gas flow channel 101, it is discharged to the external environment again through the air outlet 102.

[0095] The plurality of gas outlets 111 are arranged to improve the outflow rate of the gas in the gas flow channel 101, facilitate the flux of the gas flow in the gas flow channel 101, and thus improve the air circulation efficiency of the air purifier 100 and shorten the air purification time.

[0096] The plurality of gas outlets 111 are arranged along the periphery of the body portion 11, so that the ambient air can flow along the first direction X as much as possible after entering the gas flow channel 101 through the air inlet 103, so that the air forms a relatively fixed flow line in the gas flow channel 101, which facilitates the adsorption stability of the first electrostatic film 20 to the particulate matters in the air and reduces the risk of the particulate matters being blown off by unstable air flow after being adsorbed by the first electrostatic film 20, and is more reliable.

[0097] For example, in the embodiments of the present application, the number of gas outlets 111 can be but is not limited to 3, 5, 10 or 20, which can be selectively arranged according to the specific application scenario of the air purifier 100, according to the flux of the air flow, the power of the fan and other factors in the application scenario.

[0098] In some embodiments of the present application, the plurality of gas outlets 111 are arranged at one end of the body portion 11 close to the first mounting portion 12; the air purifier 100 further comprises a pressure difference generator 90 arranged on the bracket 10 and configured to drive the ambient air to flow from one end to the other end of the first electrostatic film 20 along the first direction X; and the pressure difference generator is arranged at one end of the gas flow channel 101 close to the gas outlet 111.

[0099] Arranging the plurality of gas outlets 111 at one end of the body portion 11 close to the first mounting portion 12 can shorten the arrangement length of the gas outlet 111, i.e., the distance between the end of the gas outlet 111 close to the air outlet 102 and the air outlet 102, thereby reducing the production cost; at the same time, the flow distance of the air in the gas flow channel 101 can be as long as possible, which improves the probability of the particulate matters in the air being captured and adsorbed by the first electrostatic film 20, and thus further improves the air purification efficiency.

[0100] The pressure difference generator 90 is a driving device for driving the ambient air circulation in the air purifier 100, which functions to generate low pressure in the gas flow channel 101, so as to facilitate the ambient air at the periphery of the air purifier 100 to flow into the gas flow channel 101 through the air inlet 103 and flow out of the air outlet 102, and finally achieve the overall purification and dust removal effect on the environment.

[0101] Exemplarily, in some embodiments, the pressure difference generator 90 can be configured as an air extractor, and the air extractor is configured to continuously extract air in the gas flow channel 101 to the external environment, so as to form a low-pressure environment in the gas flow channel 101, and enable air at a relatively high pressure in the external environment to continuously flow into the gas flow channel 101. In some embodiments, the pressure difference generator 90 can also be configured as an air blower, and the air blower is configured to enable air in the gas flow channel 101 to flow to form a low-pressure environment, and enable air at a relatively high pressure in the external environment to flow into the gas flow channel 101.

[0102] The pressure difference generator 90 is arranged at one end of the gas flow channel 101 close to the gas outlet 111, that is, the pressure difference generator 90 is arranged at one end of the gas flow channel 101 close to the downstream, so as to drive air in the gas flow channel 101 to flow. In this way, the air flowing through the pressure difference generator 90 is the air after the adsorption, the concentration of particulate matters in the air is reduced, and the risk of particulate matters being adsorbed on the pressure difference generator 90 is reduced, so that the cleaning period of the pressure difference generator 90 can be effectively reduced, and the user experience can be further improved.

[0103] In some embodiments of the present application, the air purifier 100 further comprises a cleaning device 70, and the cleaning device 70 comprises a cleaning member 71, and the cleaning member 71 is in contact with the first electrostatic membrane 20 and is movable in the first direction X.

[0104] The cleaning device 70 is a self-cleaning device in the air purifier 100, and is configured to clean particulate matters or fine hairs adsorbed on the surface of the first electrostatic membrane 20 or the gas outlet 111 during the operation of the air purifier 100, so as to improve the adsorption capacity of the first electrostatic membrane 20 to particulate matters in the subsequent operation.

[0105] The cleaning member 71 is a specific working member in the cleaning device 70, and the cleaning member 71 is in contact with the first electrostatic membrane 20 and is movable in the first direction X, so as to sweep the particulate matters adsorbed on the surface of the first electrostatic membrane 20 to be cleaned by the reciprocating movement of the cleaning member 71 in the first direction X.

[0106] Exemplarily, in some embodiments of the present application, the cleaning member 71 can be but is not limited to a brush, a sponge or the like.

[0107] In some embodiments of the present application, the cleaning device 70 further comprises a driving member (not shown in the figure), and the driving member is connected with the cleaning member 71 to drive the cleaning member 71 to move.

[0108] The driving member is connected with the cleaning member 71 to drive the cleaning member 71 to reciprocate along the first direction X. Possible implementation manners of the driving member are that the driving member is a motor, a screw rod and a guide rod, the cleaning member 71 is sleeved on the screw rod and the guide rod, and the cleaning member 71 is driven to reciprocate along the first direction X by rotation of the screw rod; or in some embodiments, the driving member can also be a structure of a pneumatic cylinder and a telescopic rod, the cleaning member 71 is fixed on the telescopic rod, and the telescopic rod is driven to extend and retract along the first direction X by the pneumatic cylinder, so as to drive the cleaning member 71 to reciprocate along the first direction X.

[0109] In some embodiments of the present application, the air purifier 100 further comprises a filter screen 80 connected to the body part 11 and covering the gas outlet 111.

[0110] The filter screen 80 covers the gas outlet 111, and the filter screen 80 functions to intercept particulate matters in the air, serving as the last air purification component of the air purifier 100, which functions to assist purification when there are many particulate matters in the air, to intercept particulate matters that are not captured and adsorbed by the first electrostatic film 20, and to reduce the risk of secondary pollution of ambient air.

[0111] The filter screen 80 is connected to the body part 11, and possible implementation manners are that the filter screen 80 can be connected to the body part 11 in a detachable connection manner such as buckle connection, connector connection, threaded connection, etc., to improve the maintenance, replacement and cleaning efficiency of the filter screen 80; in some embodiments, the filter screen 80 and the body part 11 can also be fixedly connected in a welding or even one-piece forming manner, to improve the structural consistency of the filter screen 80 and the body part 11 and reduce the risk of reduced air purification efficiency caused by falling of the filter screen 80.

[0112] It can be known that in these embodiments of the present application, the aforementioned cleaning member 71 can also be used to clean the filter screen 80 to remove particulate matters and fine hairs intercepted by the filter screen.

[0113] In some embodiments of the present application, the filter screen 80 can be a primary filter screen, to save costs while intercepting or blocking light pollutants such as hairs and feathers to prevent them from entering the pressure difference generator 90 and to facilitate cleaning by the user.

[0114] In some embodiments of the present application, the air purifier 100 further comprises an ion generator 95 arranged on the bracket 10 and used to emit ions to the environment to charge particulate matters in the environment, the polarity of the ions emitted by the ion generator 95 being opposite to the polarity of the first electrostatic film.

[0115] In the embodiments of the present application, the ion generator 95 functions to emit ions into the air, so that the particulate matters in the air are charged with charges opposite to the polarity of the first electrostatic membrane 20, so that when the air enters the air flow channel 101, the charged particulate matters are more easily adsorbed by the first electrostatic membrane 20, so as to further improve the air purification efficiency of the air purifier 100.

[0116] The ion generator 95 is arranged in the housing 40 and is used to emit ions into the environment to charge the particulate matters in the environment. In a possible implementation, the ion generator 95 is detachably connected with the housing 40, so as to facilitate the maintenance or replacement of the ion generator 95. The ion generator 95 can release a large amount of electrons into the air. The electrons are captured by oxygen molecules in the air to form negative ions and combine with the particulate matters in the air. At this time, the first electrostatic membrane 20 can be arranged to be positively charged, so that the particulate matters in the air are more easily attached to the first electrostatic membrane 20.

[0117] The above merely describes the preferred embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation made according to the content of the present application specification and drawings, or direct / indirect application in other related technical fields, all fall within the patent protection scope of the present application.

Claims

1. An air cleaner characterized by comprising: The air purifier comprises: a support; a first electrostatic film arranged on the support and used for generating an electrostatic field to adsorb particulate matters in air; a transformer electrically connected with the first electrostatic film and used for connecting a power supply to provide a unipolar voltage to the first electrostatic film.

2. The air cleaner of claim 1, wherein, The support is annular.

3. The air cleaner of claim 1, wherein, The number of the first electrostatic films is two, and the two first electrostatic films are arranged on the inner surface and the outer surface of the support respectively.

4. The air cleaner of claim 2, wherein, The air purifier further comprises a housing, and the support is connected with the housing and at least partially arranged in the housing. A gas flow channel is formed between the housing and the support, and the first electrostatic film is arranged in the gas flow channel.

5. The air cleaner of claim 4, wherein, The air purifier further comprises: a second electrostatic film arranged in the gas flow channel and spaced apart from the first electrostatic film along a direction perpendicular to the first direction, and the second electrostatic film has an opposite polarity to that of the first electrostatic film.

6. The air cleaner of claim 5, wherein, The housing comprises a side wall portion and an end wall portion, the side wall portion is annular in cross-sectional shape along a direction perpendicular to the first direction, and the end wall portion is connected to one end of the side wall portion along the first direction. The side wall portion, the end wall portion and the support jointly form the gas flow channel, and / or the end wall portion and the support jointly form the gas flow channel. The first electrostatic film is arranged on a surface of the support close to the side wall portion, and the second electrostatic film is arranged on the side wall portion.

7. The air cleaner of claim 6, wherein, The air purifier further comprises: a flow divider arranged on a side of the support away from the side wall portion, and the first electrostatic film is arranged on a surface of the support close to and / or away from the flow divider.

8. The air cleaner of claim 7, wherein, The second electrostatic film is arranged on a surface of the flow divider close to and / or away from the support.

9. The air cleaner of claim 4, wherein, The support comprises a body portion and a first mounting portion connected to each other, the first mounting portion is matched with the housing, and the body portion is arranged in the housing. The body portion is provided with a plurality of gas outlets penetrating through along a direction perpendicular to the first direction, and the plurality of gas outlets are spaced apart along the periphery of the body portion.

10. The air cleaner of claim 9, wherein, The plurality of gas outlets are arranged at one end of the body portion close to the first mounting portion. The air purifier further comprises a pressure difference generator arranged on the support and used for driving external air to flow from one end to the other end of the first electrostatic film along the first direction, and the pressure difference generator is arranged at one end of the gas flow channel close to the gas outlet.

11. The air cleaner of claim 9, wherein, The air purifier further comprises: a cleaning device comprising a cleaning member arranged on the inner surface or the outer surface of the support and capable of reciprocating along the first direction.

12. The air cleaner of claim 11, wherein, The cleaning device further comprises a driving member connected with the cleaning member to drive the cleaning member to move.

13. The air cleaner of claim 9, wherein, The air purifier further comprises: a filter screen connected to the body portion and covering the gas outlets.

14. The air cleaner of any one of claims 1 to 13, wherein, The air purifier further comprises: an ion generator arranged on the support and used for emitting ions to the environment to charge particulate matters in the environment, and the polarity of the ions emitted by the ion generator is opposite to that of the first electrostatic film.

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