Plasma generating device and air conditioner

Abstract

The utility model relates to air treatment technical field, concretely provides a kind of plasma generating device and air conditioner, to solve the problems of low efficiency, large space required, high cost in the prior art in the equipment of sterilization and deodorization exist sterilization, deodorization.For this purpose, the plasma generating part of the utility model includes insulating dielectric layer, the first electrode and the second electrode being arranged on the both sides of insulating dielectric layer, and at least one part of the third electrode is aligned with the second electrode, at least a part of insulating dielectric layer is located between the third electrode and the second electrode, the first electrode and the second electrode extend along the first direction and are arranged, the third electrode extends along the second direction and is electrically connected with the first electrode, the electrical properties of the first electrode and the second electrode are opposite when the plasma generating device is powered on.The utility model makes the first electrode and the second electrode and the third electrode extend along different lines of defense, so no matter which direction the airflow comes from, ionization is achieved, thereby obtaining better sterilization and deodorization effect.

Description

Technical Field

[0001] This utility model relates to the field of air treatment technology, specifically providing a plasma generator and an air conditioner. Background Technology

[0002] Air conditioners typically regulate indoor temperature by exchanging heat between indoor air and an indoor heat exchanger. Over time, this process accumulates bacteria, viruses, and particulate matter inside the air conditioner. When indoor air exchanges heat with the heat exchanger, it carries these bacteria, viruses, and particulate matter into the room, leading to a decline in indoor air quality and, in severe cases, harming people's health. Furthermore, since doors and windows are usually closed during air conditioner operation, unpleasant odors can develop indoors. Human activity indoors can also produce smoke, bathroom odors, and pet-related smells, all of which significantly impact comfort.

[0003] Therefore, people usually equip air conditioners with sterilization devices for sterilization and odor removal devices for odor removal. Current technologies typically use negative ions, ozone, and silver ions for sterilization, and negative ions, activated carbon filters, and photocatalysis for odor removal. However, negative ions, due to their negative charge, are easily adsorbed and neutralized by particulate matter (such as dust), have a short lifespan, and are consumed within a short distance, making it difficult to reach distant locations, thus limiting their sterilization and odor removal effectiveness. Ozone itself is a harmful substance, requiring detoxification treatment before sterilization, resulting in complex ozone equipment structures and high overall costs. Silver ions have poor active sterilization capabilities; air can only be sterilized after passing through a silver ion device. Activated carbon filters have poor odor removal efficiency; to improve odor removal, multiple activated carbon filters are usually required, occupying a large space, creating air resistance, and needing regular replacement to prevent overflow and secondary pollution once saturated. Photocatalytic odor removal typically involves the use of a light source and a catalyst mesh, which requires a relatively large space and generates air resistance, resulting in higher costs.

[0004] Accordingly, a new technical solution is needed in this field to solve the above problems. Utility Model Content

[0005] The present invention aims to solve the above-mentioned technical problems, namely, to solve the problems of low sterilization and odor removal efficiency, large space occupation, and high cost of existing sterilization and odor removal equipment.

[0006] In a first aspect, the present invention provides a plasma generating device, the plasma generating device (1) including a plasma generating section (11), the plasma generating section (11) including a first electrode (111), a second electrode (112), a third electrode (113) and an insulating dielectric layer (114), the first electrode (111) and the second electrode (112) being respectively disposed on both sides of the insulating dielectric layer (114), at least a portion of the third electrode (113) being aligned with the second electrode (112), and at least a portion of the insulating dielectric layer (114) being located between the third electrode (113) and the second electrode (112), the first electrode (111) and the second electrode (112) extending along a first direction, the third electrode (113) extending along a second direction, the third electrode (113) being electrically connected to the first electrode (111), and when the plasma generating device (1) is energized, the first electrode (111) and the second electrode (112) having opposite electrical properties.

[0007] In the preferred embodiment of the plasma generating device described above, the first direction and the second direction are perpendicular to each other.

[0008] In the preferred embodiment of the plasma generating device described above, the size of the second electrode (112) is smaller than the size of the first electrode (111).

[0009] In the preferred embodiment of the plasma generating device described above, at least one of the first electrode (111), the second electrode (112), and the third electrode (113) is provided with a through hole (115).

[0010] In the preferred embodiment of the plasma generating device described above, the plasma generating unit (11) includes two first electrodes (111), two insulating dielectric layers (114), and one second electrode (112). The second electrode (112) is disposed between the two insulating dielectric layers (114), and the two first electrodes (111) are respectively disposed on the side of the insulating dielectric layer (114) away from the second electrode (112).

[0011] In the preferred embodiment of the plasma generating device described above, the plasma generating unit (11) includes two third electrodes (113), which are respectively disposed at both ends of the first electrode (111) along the first direction.

[0012] In the preferred embodiment of the plasma generating device described above, the plasma generating device (1) includes a housing (12), on which a ventilation structure (1212) is provided, and the first electrode (111), the second electrode (112), the third electrode (113) and the insulating dielectric layer (114) are all disposed inside the housing (12).

[0013] In the preferred embodiment of the plasma generating device described above, the plasma generating device (1) further includes a fan (13), which is disposed inside the housing (12) and is configured to introduce air into the housing (12).

[0014] In the preferred embodiment of the plasma generating device described above, the plasma generating unit (11) is configured as a cylindrical structure, and the fan (13) is disposed inside the cylindrical structure.

[0015] In the technical solution of this utility model, the plasma generating device includes a plasma generating section, which includes a first electrode, a second electrode, a third electrode, and an insulating dielectric layer. The first electrode and the second electrode are respectively disposed on opposite sides of the insulating dielectric layer. At least a portion of the third electrode is aligned with the second electrode, and at least a portion of the insulating dielectric layer is located between the third electrode and the second electrode. The first electrode and the second electrode extend along a first direction, and the third electrode extends along a second direction, with an angle between the first direction and the second direction. The third electrode is electrically connected to the first electrode, and when the plasma generating device is energized, the electrical polarities of the first electrode and the second electrode are opposite. That is, the electrical polarities of the first electrode and the third electrode are the same, and the electrical polarities of the first electrode and the third electrode are opposite to those of the second electrode. Combined with the insulating dielectric layer, a uniform electric field can be generated between the first electrode and the second electrode, and between the third electrode and the second electrode. Furthermore, since there is an angle between the first and second directions, it is equivalent to surrounding the second electrode with the first and third electrodes. This means that a uniform electric field is formed in at least two directions of the second electrode. Therefore, regardless of the direction from which the airflow passes through the plasma generator, it can be ionized to generate plasma, thus enabling better sterilization and deodorization of the air. Moreover, the electrodes and insulating dielectric layer in this application are compactly arranged, requiring minimal space and eliminating the need for any additional equipment. The generated plasma has high energy and can travel a considerable distance with the airflow, resulting in good sterilization and deodorization effects at a low cost.

[0016] Furthermore, since the first and second directions are perpendicular to each other, electric fields can be generated in the two perpendicular directions, forming a complete coverage of the airflow. This allows for the full ionization of all air flowing through the plasma generation module, thereby effectively improving the sterilization and deodorization effects.

[0017] Furthermore, the size of the second electrode is smaller than that of the first electrode, so that when the plasma generator is energized, a spindle-shaped electric field can be formed between the first and second electrodes, effectively increasing the area covered by the electric field and improving the ionization efficiency.

[0018] Furthermore, at least one of the first, second, and third electrodes is provided with a through hole. When the plasma generating component is energized, a discharge point can be formed at each through hole. This is equivalent to forming multiple discharge points on the three electrodes that can ionize air and generate plasma, effectively improving the ionization efficiency and generating more plasma.

[0019] Furthermore, the plasma generating unit includes two first electrodes, two insulating dielectric layers, two third electrodes, and one second electrode. The second electrode is disposed between the two insulating dielectric layers, and the two first electrodes are respectively disposed on the side of the insulating dielectric layer away from the second electrode. This effectively places the first and second electrodes on opposite sides of the insulating dielectric layer. The two third electrodes are respectively disposed at both ends of the first electrode along a first direction. The two first and two third electrodes together form a relatively independent space within this space. When the plasma generating device is energized, an electric field is generated around the second electrode, effectively ionizing air coming from any direction. This significantly improves ionization efficiency and allows for better sterilization and deodorization of the air.

[0020] Furthermore, the plasma generator also includes a housing and a fan. The housing is equipped with a ventilation structure. Both the plasma generator and the fan are located inside the housing. Under the action of the fan, air is passively drawn into the housing and comes into full contact with the plasma generator, fully ionizing to generate plasma. The fan can also fully disturb the airflow inside the housing, allowing the air and plasma to mix thoroughly, thereby achieving better sterilization and deodorization effects.

[0021] Secondly, this utility model also provides an air conditioner equipped with the plasma generating device described in any of the foregoing embodiments.

[0022] It should be noted that this air conditioner has all the technical effects of the aforementioned plasma generating device, which will not be repeated here. Attached Figure Description

[0023] The preferred embodiment of this utility model is described below using a wall-mounted air conditioner as an example, in conjunction with the accompanying drawings. (The drawings include:)

[0024] Figure 1 This is a structural diagram (I) of a plasma generating device according to an embodiment of the present invention;

[0025] Figure 2 This is a structural diagram (II) of a plasma generating device according to an embodiment of the present invention;

[0026] Figure 3 yes Figure 2 Cross-sectional view of surface AA;

[0027] Figure 4 This is a structural diagram of the plasma generator according to one embodiment of the present invention;

[0028] Figure 5 This is an exploded structural diagram of the plasma generator according to an embodiment of the present invention;

[0029] Figure 6 This is a structural diagram of a plasma generator according to an embodiment of the present invention after the cover is removed;

[0030] Figure 7 This is a structural diagram of the cover of a plasma generating device according to an embodiment of the present invention;

[0031] Figure 8 This is a structural diagram of the first part of the base of a plasma generating device according to an embodiment of the present invention;

[0032] Figure 9 This is a structural diagram of the second part of the base of a plasma generating device according to an embodiment of the present invention;

[0033] Figure 10 yes Figure 2 Simulated potential distribution diagram of section AA;

[0034] Figure 11 yes Figure 2 Simulated electric field distribution diagram of section AA;

[0035] Figure 12 This is a structural diagram of a plasma generating device installed on a wall-mounted air conditioner according to an embodiment of the present invention.

[0036] List of reference numerals in the attached diagram:

[0037] 1. Plasma generator; 11. Plasma generating unit; 111. First electrode; 112. Second electrode; 113. Third electrode; 1131. Body; 1132. Flanged edge; 114. Insulating dielectric layer; 1141. First mounting position; 1142. Second mounting position; 1143. Third mounting position; 1144. Fourth mounting position; 1145. Protruding end; 11451. Groove; 115. Through hole; 116. Strip hole; 117. Power connection terminal; 12. Housing; 121. Cover; 1211. Buckle; 1212. Ventilation structure ; 12121, First ventilation hole; 12122, Second ventilation hole; 122, Base; 1221, First part; 12211, Mounting plate; 12212, Locking block; 12213, Opening; 12214, Limiting structure; 12215, Mounting platform; 12216, Mounting column; 12217, Mounting hole; 12218, Vent hole; 1222, Second part; 12221, Slot; 12222, Locking hole; 12223, Notch; 13, Fan; 14, Indicator light; 2, Housing; 21, Air inlet; 22, Air outlet. Detailed Implementation

[0038] The preferred embodiments of this utility model are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of this utility model and are not intended to limit the scope of protection of this utility model. It should be noted that although the above description uses a plasma generating device installed in a wall-mounted air conditioner as an example, it can obviously also be installed in other types of air conditioners such as cabinet air conditioners, central air conditioners, ducted air conditioners, and window air conditioners, or in other types of air purification equipment such as air purifiers and sterilizers.

[0039] It should be noted that in the description of this utility model, terms such as "upper," "lower," "inner," and "outer," indicating directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] Furthermore, it should be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "connected" and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0041] Currently, common ozone and silver ion devices typically only perform sterilization, while activated carbon filters and photocatalyst devices typically only remove odors. Both types of devices are required for both air sterilization and odor removal, and each device has relatively low efficiency in both, occupies more space, and is more expensive. Negative ion devices, which can simultaneously sterilize and remove odors, generate negative ions that are easily adsorbed and neutralized, have a short lifespan, and struggle to reach distant locations, resulting in limited sterilization and odor removal effects. Therefore, the plasma generating device of this application includes a first electrode and a second electrode disposed on opposite sides of an insulating dielectric layer with opposite electrical charges, a third electrode electrically connected to the first electrode, and the first, second, and third electrodes extending along a first and a second direction, respectively. This allows a uniform electric field to be formed in at least two directions of the second electrode, achieving better sterilization and odor removal effects.

[0042] The following is combined with Figures 1 to 12 This paper describes possible implementations of the plasma generating device of this utility model.

[0043] like Figures 1 to 6 As shown, the plasma generating device 1 includes a plasma generating section 11, which includes a first electrode 111, a second electrode 112, a third electrode 113, and an insulating dielectric layer 114. The first electrode 111 and the second electrode 112 are respectively disposed on opposite sides of the insulating dielectric layer 114, and at least a portion of the insulating dielectric layer 114 is located between the third electrode 113 and the second electrode 112. The first electrode 111 and the second electrode 112 extend along a first direction, and the third electrode 113 extends along a second direction perpendicular to the first direction. The third electrode 113 is electrically connected to the first electrode 111, and when the plasma generating device 1 is energized, the first electrode 111 and the second electrode 112 have opposite electrical polarities. In other words, the first electrode 111 and the third electrode 113 have the same electrical polarity, while the first electrode 111 and the third electrode 113 have opposite electrical polarities to the second electrode 112. Combined with the insulating dielectric layer 114, this allows for the generation of uniform electric fields between the first electrode 111 and the second electrode 112, and between the third electrode 113 and the second electrode 112. Furthermore, since the first direction and the second direction are perpendicular to each other, it is equivalent to surrounding the first electrode 111 and the third electrode 113 on the outside of the directions parallel and perpendicular to the second electrode 112. This creates uniform electric fields in the two perpendicular directions, providing complete coverage of the airflow. Regardless of the direction from which the airflow passes through the plasma generator 1, it can be ionized by the electric field to generate plasma, thereby better sterilizing and deodorizing the air, achieving superior sterilization and deodorization effects.

[0044] It should be noted that the plasma generating device 1 of this application is powered by an AC high-voltage power supply (e.g., 2000V to 3000V). During operation, the electrical polarities of the first electrode 111 and the third electrode 113 are always opposite to those of the second electrode 112. Specifically, when the first electrode 111 and the third electrode 113 are positive, the second electrode 112 is negative; and when the first electrode 111 and the third electrode 113 are negative, the second electrode 112 is positive.

[0045] It should be noted that the first direction and the second direction do not have to be perpendicular to each other, but rather have an angle between them, which can be less than 90°.

[0046] In one possible implementation, the first electrode 111, the second electrode 112, and the third electrode 113 can be made of metallic materials such as copper, stainless steel, and tungsten, while the insulating dielectric layer 114 can be made of inorganic insulating materials with a high dielectric constant, such as ceramics and glass. Preferably, the first electrode 111, the second electrode 112, and the third electrode 113 are all made of brass, and the insulating dielectric layer 114 is made of ceramic.

[0047] like Figures 1 to 6 As shown, the size of the second electrode 112 is smaller than the size of the first electrode 111. Specifically, the radial dimension of the second electrode 112 is smaller than the radial dimension of the first electrode 111, and the height of the second electrode 112 is smaller than the height of the first electrode 111. In this way, when the plasma generator 1 is energized, a spindle-shaped electric field can be formed between the first electrode 111 and the second electrode 112, effectively increasing the area covered by the electric field and improving the ionization efficiency. It should be noted that the size of the first electrode 111 can also be smaller than the size of the second electrode 112. Of course, the sizes of the first electrode 111 and the second electrode 112 can also be the same. It should be noted that the heights of the first electrode 111 and the second electrode 112 are approximately... Figure 3 The dimensions of the first electrode 111 and the second electrode 112 in the vertical direction.

[0048] like Figures 1 to 6As shown, through holes 115 are provided on the first electrode 111, the second electrode 112, and the third electrode 113. The through holes 115 are approximately hexagonal in shape, and multiple through holes 115 are arranged in an array on the first electrode 111, the second electrode 112, and the third electrode 113, forming a honeycomb-like structure. When the plasma generator 1 is energized, a high-voltage electric field is formed between the first electrode 111 and the second electrode 112, and between the second electrode 112 and the third electrode 113. Simultaneously, a discharge point is formed at each through hole 115 on each electrode, which is equivalent to forming multiple discharge points on the three electrodes capable of ionizing air and generating plasma, effectively improving ionization efficiency and generating more plasma. It should be noted that the through holes 115 can also be provided as other possible shapes such as circular, polygonal, rectangular, square, or elliptical holes. Of course, through holes 115 can be provided only on the first electrode 111, the second electrode 112, or the third electrode 113, or only on any two of the first electrode 111, the second electrode 112, and the third electrode 113. Obviously, the first electrode 111, the second electrode 112, and the third electrode 113 can also be without through holes 115, and plasma can be generated solely through surface discharge of the first electrode 111, the second electrode 112, and the third electrode 113.

[0049] like Figures 1 to 6 As shown and in accordance with Figure 3 As shown in the diagram, the plasma generating unit 11 includes two generally cylindrical first electrodes 111, two insulating dielectric layers 114, two third electrodes 113, and one second electrode 112, with slightly different radial dimensions for each component. That is, the plasma generating unit 11 is configured as a cylindrical structure, arranged radially from the outermost ring of first electrodes 111, the outermost ring of insulating dielectric layers 114, the second electrode 112, the innermost ring of insulating dielectric layers 114, and the innermost ring of first electrodes 111. Specifically, according to... Figure 5As shown in the exploded view, the insulating dielectric layer 114 on the left is the outer insulating dielectric layer 114, and the insulating dielectric layer 114 on the right is the inner insulating dielectric layer 114. The first electrode 111 on the left is the outer first electrode 111, and the first electrode 111 on the right is the inner first electrode 111. The outer wall of the outer insulating dielectric layer 114 is recessed inward to form a first mounting position 1141, and the inner wall is recessed inward to form a second mounting position 1142. The outer wall of the inner insulating dielectric layer 114 is recessed inward to form a third mounting position 1143, and the inner wall is recessed inward to form a fourth mounting position 1144. The outer first electrode 111 is located at the first mounting position 1141, and the inner first electrode 111 is located at the fourth mounting position 1144. The second mounting position 1142 and the third mounting position 1143 are engaged with each other to form a mounting space. The second electrode 112 is located in this mounting space, thus placing the second electrode 112 between the two insulating dielectric layers 114. The two first electrodes 111 are respectively located on the side of the insulating dielectric layer 114 away from the second electrode 112, thus placing the first electrode 111 and the second electrode 112 on both sides of the insulating dielectric layer 114. The third electrode 113 includes a body 1131 and a flange 1132 extending outward in the circumferential direction along the body 1131. The body 1131 is generally a ring structure, extending outward in the second direction (generally...). Figure 3 The third electrode 113 extends horizontally (within the horizontal direction of the body), and multiple through holes 115 are arranged sequentially along the circumference of the body 1131. The flange 1132 extends vertically from the inner and outer edges of the body 1131. In other words, the third electrode 113 is roughly a structure resembling an annular groove formed by the body 1131 and the flange 1132. The two third electrodes 113 extend along the first direction (roughly...) Figure 3The two third electrodes 113 are respectively positioned at the top and bottom of the first electrode 111 (vertically). When assembled, the bodies 1131 of the two third electrodes 113 abut against the top and bottom of the inner and outer insulating dielectric layers 114, respectively. The flanges 1132 of the two third electrodes 113 are connected to the inner and outer first electrodes 111, respectively, thus positioning the two third electrodes 113 at opposite ends of the first electrode 111. In this way, the two first electrodes 111 and the two third electrodes 113 form a roughly annular, relatively independent space, within which the second electrode 112 is positioned. Furthermore, the distance between the second electrode 112 and the first electrode 111 is the same as the distance between the second electrode 112 and the third electrode 113, resulting in approximately the same potential difference between the second electrode 112 and the first electrode 111, and between the second electrode 112 and the third electrode 113. In this way, when the plasma generator 1 is powered on, an electric field can be formed on all sides of the second electrode 112, including the inner side, outer side, top side, and bottom side, and the electric field is relatively uniformly distributed everywhere. That is to say, a uniform electric field is formed around the second electrode 112, which can effectively ionize air coming from any direction to generate plasma, effectively improving ionization efficiency and enabling better sterilization and deodorization of air.

[0050] To gain a clearer understanding of the electric field distribution in the plasma generating unit 11, the inventors of this application conducted a simulation in COMSOL. The specific results are available in [link to simulation]. Figure 10 and Figure 11 COMSOL is a widely used multiphysics simulation software; its specific parameters and simulation process will not be elaborated here. It can be seen that, under the action of the two insulating dielectric layers 114 and with the second electrode 112 positioned within the space formed by the two first electrodes 111 and the two third electrodes 113, a potential difference can be formed around the second electrode 112, and the potential distribution is relatively uniform, thus obtaining a large-area uniform electric field. Under the action of such an electric field, air flowing through the plasma generator 1 from any direction can be ionized, generating a large amount of plasma without producing toxic ozone.

[0051] It should be noted that in this embodiment, the first direction is approximately as follows: Figure 3 The vertical direction in the middle, the second direction is approximately Figure 3 The horizontal direction in the middle.

[0052] It should be noted that the plasma generating unit 11 may not be a cylindrical structure, but may be a structure with an elliptical, polygonal, rectangular, or other shaped cross-section. Of course, the outer contour of the plasma generating unit 11 may also be a plate-shaped, arc-shaped, wavy, or other possible shapes.

[0053] It should be noted that the third electrode 113 may also consist only of the body 1131. In this case, the upper and lower ends of the first electrode 111 are directly electrically connected to the third electrode 113 disposed at the upper and lower ends of the first electrode 111. It should also be noted that the plasma generating unit 11 may consist only of one insulating dielectric layer 114. In this case, the plasma generating unit 11 may include one first electrode 111, one second electrode 112, and one third electrode 113, or it may include one first electrode 111, one second electrode 112, and two third electrodes 113. Of course, the plasma generating unit 11 may also include three, four, five, or more insulating dielectric layers 114, with the first electrode 111 and the second electrode 112 alternately disposed on both sides of the insulating dielectric layer 114, and the third electrode 113 disposed along the first direction at both ends of the first electrode 111. Taking the plasma generating unit 11 as an example, which includes four insulating dielectric layers 114, the plasma generating unit 11 includes a first electrode 111, an insulating dielectric layer 114, a second electrode 112, an insulating dielectric layer 114, a first electrode 111, an insulating dielectric layer 114, a second electrode 112, an insulating dielectric layer 114, a first electrode 111, and a third electrode 113 respectively disposed at both ends of the first electrode 111 and the second electrode 112. In this case, the two third electrodes 113 are electrically connected to each of the first electrodes 111.

[0054] For ease of explanation, the following description uses a plasma generating unit 11 comprising, from the outside to the inside, a first electrode 111, an insulating dielectric layer 114, a second electrode 112, an insulating dielectric layer 114, the first electrode 111, and two third electrodes 113 respectively disposed at both ends of the first electrode 111 as an example, and combines them with... Figures 1 to 9 The possible implementations of the plasma generating device 1 of this utility model will be described in detail below.

[0055] like Figures 1 to 9As shown, the plasma generating device 1 also includes a housing 12, which includes a base 122 and a cover 121 fastened to the base 122, forming an installation space therein. The plasma generating unit 11 is disposed within the installation space. The base 122 includes a first part 1221 and a second part 1222 that fasten to each other. The first part 1221 is generally a disc-shaped structure with a mounting plate 12211 on it. The mounting plate 12211 extends circumferentially along the first part 1221, and five locking blocks 12212 are provided on its outer wall. The second part 1222 is generally an inverted cover-shaped structure, and its inner wall has locking grooves 12221 at positions corresponding to the locking blocks 12212. The first part 1221 and the second part 1222 are fastened together by the interlocking of the locking grooves 12221 and the locking blocks 12212. When fastened, the outer surface of the second part 1222 is approximately flush with the outer edge of the first part 1221. The cover 121 is roughly an inverted dome-shaped structure, with five latches 1211 extending downwards from its lower edge. These five latches 1211 are evenly arranged circumferentially around the cover 121. The second part 1222 is recessed inwards near the top to form a mounting surface. The mounting surface has locking holes 12222 at positions corresponding to the latches 1211. The latches 1211 engage with the locking holes 12222, thereby engaging the cover 121 with the base 122, forming the aforementioned mounting space. When assembled, the outer surface of the cover 121 is approximately flush with the outer surface of the second part 1222 to ensure overall aesthetics.

[0056] It should be noted that the locking block 12212 can also be located on the first part 1221, and the locking slot 12221 can be located on the second part 1222. Of course, the first part 1221 and the second part 1222 can also be engaged with each other by other possible methods such as screwing, bonding, or plugging. It should also be noted that the buckle 1211 can be located on the second part 1222, and the locking hole 12222 can be located on the cover 121. Of course, the cover 121 can also be connected to the second part 1222 by other possible methods such as screwing, bonding, or plugging.

[0057] Continue to refer to Figures 1 to 9 And in accordance with Figure 3As shown, a ventilation structure 1212 is provided on the cover 121. The ventilation structure 1212 includes a first ventilation hole 12121 and a second ventilation hole 12122. The first ventilation hole 12121 is a roughly circular hole and is located at the top center of the cover 121. Multiple second ventilation holes 12122 are provided, extending from a position near the first ventilation hole 12121 to a position near the lower edge of the cover 121, and are arranged circumferentially along the cover 121. When the cover 121 and the base 122 are fastened together, there is a gap between the lower edge of the cover 121 located between two adjacent buckles 1211 and the second part 1222. The second part 1222 is provided with a notch 12223. The mounting plate 12211 is provided with an opening 12213 at the corresponding position. The center of the first part 1221 is provided with a plurality of vent holes 12218 arranged circumferentially. These gaps, openings 12213, and vent holes 12218 can also be used together with the first ventilation hole 12121 and the second ventilation hole 12122 as a ventilation structure 1212 of the housing 12. Air can enter the housing 12 through the ventilation structure 1212, be ionized, and then flow out of the housing 12 through these ventilation structures 1212. Obviously, the ventilation structure 1212 may also include any one or more of the first ventilation hole 12121, the second ventilation hole 12122, the gap, the opening 12213, and the vent 12218.

[0058] like Figures 1 to 9 As shown, multiple hexagonal through holes 115 are provided on the two first electrodes 111, the second electrode 112, and the third electrode 113 located on top of the first electrode 111. Multiple strip holes 116 are provided on the third electrode 113 located at the bottom of the first electrode 111, so that discharge points can be formed at the hexagonal through holes 115 and strip holes 116 when the plasma generator 1 is energized. The lower edges of the two insulating dielectric layers 114 extend downward with protruding ends 1145, and the number and position of the protruding ends 1145 correspond one-to-one with the number and position of the strip holes 116. A groove 11451 is formed on each protruding end 1145, and the groove 11451 communicates with the corresponding mounting position. Power connection terminals 117 extend outward from the lower edges of the two first electrodes 111 and one second electrode 112, respectively. When assembled, the protruding end 1145 passes through the strip hole 116 and extends to the bottom of the third electrode 113. Each power connection end 117 is disposed in the groove 11451 on the corresponding protruding end 1145 and extends to the outside of the groove 11451.

[0059] The first part 1221 has a limiting structure 12214 on the inner side of the mounting plate 12211. This limiting structure 12214 includes two sets of arc-shaped plates, each set consisting of two arc-shaped plates with different radial dimensions. The arc-shaped plate with the larger radial dimension and the arc-shaped plate with the smaller radial dimension are arranged sequentially along the direction closest to the mounting plate 12211. There is a gap between the ends of the two sets of arc-shaped plates, and at least a portion of each gap aligns with the notch 12223 on the second part 1222 and the opening 12213 on the mounting plate 12211 to facilitate airflow. A mounting platform 12215 is provided within the limiting structure 12214. The mounting platform 12215 includes two arc-shaped strips, each located within one of the two sets of arc-shaped plates. The height of each arc-shaped strip is less than the height of the arc-shaped plate, and each arc-shaped strip forms a recess at the position corresponding to the protruding end 1145 of the insulating dielectric layer 114.

[0060] During assembly, the first electrode 111, the second electrode 112, the third electrode 113, and the insulating dielectric layer 114 are first assembled together to form the plasma generating unit 11. Then, the protruding ends 1145 are aligned with the recesses, and the plasma generating unit 11 is mounted on the mounting platform 12215. When assembled, the outer wall of the body 1131 of the third electrode 113 located at the bottom of the first electrode 111 abuts against the upper surface of the mounting platform 12215. Each power connection end 117 extends from the groove 11451 to the space between the mounting platform 12215 and the limiting structure 12214, and is electrically connected to the AC high-voltage power supply to ensure the normal operation of the plasma generating device 1.

[0061] like Figures 1 to 9As shown, the plasma generating device 1 also includes a fan 13, for example, an axial flow fan 13, which has three screw holes. The first part 1221 has three mounting posts 12216 formed on the inner side of the limiting structure 12214 at positions corresponding to the screw holes, and each mounting post 12216 has a mounting hole 12217. The first part 1221 also has multiple vent holes 12218 on the inner side of the limiting structure 12214. During assembly, fasteners (e.g., screws, bolts, etc.) are passed sequentially through the screw holes and mounting holes 12217 to mount the fan 13 inside the housing 12. When assembled, the axis of the fan 13 and the axis of the cylindrical structure of the plasma generating unit 11 both extend in the first direction, and their axes coincide. That is, the fan 13 and the plasma generating unit 11 are coaxially arranged. In this way, under the action of the fan 13, air can be passively drawn into the housing 12 through the first ventilation hole 12121, the second ventilation hole 12122, the gap, the opening 12213, and the vent 12218, and passively blown out of the housing 12. During this process, the airflow inside the housing 12 is fully disturbed, allowing for more thorough and uniform contact with the plasma generator 11, ionizing and generating more plasma, and enabling thorough mixing of air and plasma, thereby achieving better sterilization and deodorization effects. Obviously, the axis of the fan 13 and the axis of the cylindrical structure may not coincide; their axes can be parallel or at an angle. It should be noted that the fan 13 can also be installed inside the housing 12 by other possible methods such as snap-fit ​​or plug-in. Of course, the plasma generator 1 may also not include the fan 13.

[0062] like Figure 3 and Figure 8 As shown, the plasma generator 1 also includes an indicator light 14, which is positioned between the mounting plate 12211 and the limiting structure 12214. The indicator light 14 displays the operating status of the plasma generator 1, allowing the user to clearly understand its actual operation. For example, a red indicator light 14 indicates that the plasma assembly is not operating, while a green indicator light 14 indicates that the plasma assembly is operating normally, and so on. The indicator light 14 can be an LED strip or LED beads. Taking an LED strip as an example, the indicator light 14 can be a roughly circular strip, similar in shape to the circular space between the mounting plate 12211 and the limiting structure 12214. Alternatively, the indicator light 14 can be composed of multiple arc-shaped strips spaced circumferentially along the mounting plate 12211. Obviously, the plasma generator 1 may also be without the indicator light 14.

[0063] The following reference Figures 1 to 9 , Figure 12This paper describes a possible implementation of the plasma generating device 1 of this application installed on a wall-mounted air conditioner.

[0064] like Figures 1 to 9 , Figure 12 As shown, the wall-mounted air conditioner includes a casing 2, inside which a heat exchanger (not shown) and a fan (not shown) are installed. The casing 2 has an air inlet 21 and an air outlet 22. Under the action of the fan, indoor air enters the casing 2 through the air inlet 21 to exchange heat with the heat exchanger, and then returns to the indoor space through the air outlet 22. An installation structure is formed on the side of the casing 2 near the air outlet 22. For example, the installation structure can be an adhesive layer, a mounting groove, a mounting hole, a snap-fit, or other possible structures. The plasma generator 1 is connected to the installation structure via its base 122, and is thus positioned on the side near the air outlet 22. The base 122 can be connected to the installation structure by means of screwing, snap-fitting, adhesive bonding, or other possible methods. When the wall-mounted air conditioner is running, the air delivered through the air outlet 22 flows through the plasma generator 1. Under the action of the internal fan 13, the air is drawn into the housing 12 and fully disturbed, making full contact with the plasma generator 11, ionizing to generate plasma, and then blown out of the housing 12, mixing with the airflow flowing through the air outlet 22, and spreading into the indoor space with the airflow for further sterilization and deodorization, thereby achieving better sterilization and deodorization effects.

[0065] In summary, in the preferred embodiment of this utility model, by extending the first electrode 111 and the second electrode 112 along the first direction, and the third electrode 113 along the second direction, electrically connecting the first electrode 111 and the third electrode 113, and making the electrical properties of the first electrode 111 and the second electrode 112 opposite, a uniform electric field can be formed in at least two directions. Regardless of the direction from which the airflow flows through the plasma generator 1, it can be ionized by the electric field to generate plasma, thereby achieving better sterilization and deodorization effects. By making the first direction and the second direction perpendicular to each other, a complete coverage of the airflow can be achieved, thereby obtaining even better sterilization and deodorization effects. By providing through holes 115 on the first electrode 111, the second electrode 112, and the third electrode 113, multiple discharge points can be formed on each electrode, effectively improving ionization efficiency. By including two first electrodes 111, one second electrode 112, and two third electrodes 113 in the plasma generator 11, and placing the second electrode 112 within the space formed by the first electrodes 111 and the third electrodes 113, an electric field can be formed around the second electrode 112, ionizing air coming from any direction and improving air sterilization and deodorization. By arranging the plasma generator 11 into a cylindrical structure and placing the fan 13 inside the cylindrical structure, air can be passively drawn in and blown out by the fan 13, and the airflow inside the housing 12 can be sufficiently disturbed, allowing the air and plasma to mix thoroughly, thus improving the sterilization and deodorization effects.

[0066] In addition, this utility model also provides an air conditioner equipped with the aforementioned plasma generating device.

[0067] It should be noted that this air conditioner has all the technical effects of the aforementioned plasma generating device, which will not be repeated here.

[0068] Of course, the above-mentioned alternative implementation methods, as well as the alternative implementation methods and preferred implementation methods, can be used in combination to create new implementation methods that are suitable for more specific application scenarios.

[0069] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features but not others included in other embodiments, combinations of features from different embodiments are intended to be within the scope of this invention and form different embodiments. For example, in the claims of this invention, any of the claimed embodiments can be used in any combination.

[0070] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A plasma generating device, characterized in that, The plasma generating device (1) includes a plasma generating section (11), which includes a first electrode (111), a second electrode (112), a third electrode (113), and an insulating dielectric layer (114). The first electrode (111) and the second electrode (112) are respectively disposed on both sides of the insulating dielectric layer (114). At least a portion of the third electrode (113) is aligned with the second electrode (112), and at least a portion of the insulating dielectric layer (114) is located between the third electrode (113) and the second electrode (112). The first electrode (111) and the second electrode (112) extend along a first direction, and the third electrode (113) extends along a second direction. The third electrode (113) is electrically connected to the first electrode (111), and when the plasma generating device (1) is energized, the first electrode (111) and the second electrode (112) have opposite electrical properties.

2. The plasma generating apparatus according to claim 1, characterized in that, The first direction and the second direction are perpendicular to each other.

3. The plasma generating apparatus according to claim 1, characterized in that, The size of the second electrode (112) is smaller than the size of the first electrode (111).

4. The plasma generating apparatus according to claim 1, characterized in that, At least one of the first electrode (111), the second electrode (112), and the third electrode (113) is provided with a through hole (115).

5. The plasma generating apparatus according to any one of claims 1 to 4, characterized in that, The plasma generating unit (11) includes two first electrodes (111), two insulating dielectric layers (114), and one second electrode (112). The second electrode (112) is disposed between the two insulating dielectric layers (114), and the two first electrodes (111) are respectively disposed on the side of the insulating dielectric layer (114) away from the second electrode (112).

6. The plasma generating apparatus according to claim 5, characterized in that, The plasma generating unit (11) includes two third electrodes (113), which are respectively disposed at both ends of the first electrode (111) along the first direction.

7. The plasma generating apparatus according to any one of claims 1 to 4, characterized in that, The plasma generating device (1) includes a housing (12), on which a ventilation structure (1212) is provided. The first electrode (111), the second electrode (112), the third electrode (113) and the insulating dielectric layer (114) are all disposed inside the housing (12).

8. The plasma generating apparatus according to claim 7, characterized in that, The plasma generating device (1) further includes a fan (13) disposed within the housing (12) and configured to introduce air into the housing (12).

9. The plasma generating apparatus according to claim 8, characterized in that, The plasma generator (11) is configured as a cylindrical structure, and the fan (13) is disposed inside the cylindrical structure.

10. An air conditioner, characterized in that, The air conditioner is equipped with a plasma generating device (1) according to any one of claims 1 to 9.

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