Plasma generating device and air conditioner

Abstract

The invention relates to the technical field of air treatment, particularly provides a plasma generation device and an air conditioner, and aims to solve the problems of low sterilization and peculiar smell removal efficiency, large occupied space, high cost and the like of sterilization and peculiar smell removal equipment in the prior art. In order to achieve the purpose, a plasma generating part comprises an insulating dielectric layer, a first electrode and a second electrode which are arranged on the two sides of the insulating dielectric layer, and a third electrode with at least one part aligned with the second electrode, and at least one part of the insulating dielectric layer is located between the third electrode and the second electrode. The first electrode and the second electrode extend in the first direction, the third electrode extends in the second direction and is electrically connected with the first electrode, and when the plasma generating device is powered on, the first electrode and the second electrode are opposite in electrical property. According to the invention, the first electrode, the second electrode and the third electrode are arranged along different defense lines in an extending manner, so that relatively good degerming and peculiar smell removing effects can be obtained no matter which direction the air flow is ionized.

Description

Technical Field

[0001] The present invention relates to the technical field of air treatment, and particularly provides a plasma generating device and an air conditioner. Background Art

[0002] An air conditioner usually adjusts the temperature of an indoor space by exchanging heat between indoor air and an indoor heat exchanger. After being used for a long time like this, a large amount of bacteria, viruses, and particulate matter will accumulate inside. When the indoor air exchanges heat with the indoor heat exchanger, it will carry the bacteria, viruses, and particulate matter in the air conditioner into the indoor space, resulting in a decline in the air quality of the indoor space and seriously endangering people's health. Moreover, since the doors and windows are usually closed during the operation of the air conditioner, peculiar smells will be generated indoors. People's activities indoors will also generate cigarette smells, toilet odors, etc. Families with pets will also generate corresponding peculiar smells, which seriously affect the comfort.

[0003] Therefore, people usually configure a sterilization device on the air conditioner to perform sterilization treatment and configure an odor removal device to perform odor removal treatment. In the prior art, sterilization treatment is usually carried out by means of negative ions, ozone, silver ions, etc., and odor removal treatment is usually carried out by means of negative ions, activated carbon filters, photocatalysts, etc. However, negative ions are extremely easy to be adsorbed and neutralized by particulate matter (such as dust, etc.) due to carrying negative charges, and have a short lifespan, being consumed within a short distance and being difficult to reach a position far away from it, so the sterilization and odor removal effects are limited. Ozone itself is a harmful substance, and harmless treatment needs to be carried out on it while using it for sterilization, resulting in a complex structure of the ozone device and a relatively high overall cost. The initiative of silver ion sterilization is poor, and air can only be sterilized after passing through a silver ion device. The efficiency of odor removal by an activated carbon filter is poor. To improve the odor removal effect, a relatively large number of activated carbon filters usually need to be configured, which requires a large amount of occupied space, generates wind resistance at the same time, and needs to be replaced regularly. Otherwise, it will overflow and cause secondary pollution after adsorption saturation. Photocatalyst odor removal usually uses a light source and a catalyst mesh in combination, which also requires a relatively large amount of occupied space, generates wind resistance at the same time, and has a high cost.

[0004] Correspondingly, a new technical solution is needed in this field to solve the above problems. Summary of the Invention

[0005] The present invention aims to solve the above technical problems, that is, to solve the problems of low efficiency of sterilization and odor removal, large occupied space, high cost, etc. existing in the sterilization and odor removal equipment in the prior art.

[0006] In a first aspect, the present invention provides a plasma generating device. The plasma generating device (1) includes a plasma generating part (11). The plasma generating part (11) 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 part of the third electrode (113) is aligned with the second electrode (112), and at least a part 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 powered on, the electric polarities of the first electrode (111) and the second electrode (112) are opposite.

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

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

[0009] In a preferred technical solution of the above plasma generating device, through holes (115) are provided on at least one of the first electrode (111), the second electrode (112), and the third electrode (113).

[0010] In a preferred technical solution of the above plasma generating device, the plasma generating part (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 sides of the insulating dielectric layers (114) facing away from the second electrode (112).

[0011] In a preferred technical solution of the above plasma generating device, the plasma generating part (11) includes two third electrodes (113). The two third electrodes (113) are respectively disposed at both ends of the first electrode (111) along the first direction.

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

[0013] In the preferred technical solution of the above plasma generating device, the plasma generating device (1) further includes a fan (13). The fan (13) is disposed within the housing (12), and the fan (13) is configured to introduce air into the housing (12).

[0014] In the preferred technical solution of the above plasma generating device, the plasma generating section (11) is arranged in a cylindrical structure, and the fan (13) is disposed within the cylindrical structure.

[0015] In the technical solution of the present invention, the plasma generating device includes a plasma generating section. The plasma generating section 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 both sides of the insulating dielectric layer. At least a part of the third electrode is aligned with the second electrode, and at least a part 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, the third electrode extends along a second direction, and there is an included 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 powered on, the electric polarities of the first electrode and the second electrode are opposite. That is to say, the electric polarities of the first electrode and the third electrode are the same, and the electric polarities of the first electrode and the third electrode are opposite to that of the second electrode. Coupled with the setting of 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. Moreover, since there is an included angle between the first direction and the second direction, it is equivalent to surrounding the second electrode with the first electrode and the third electrode, which means that a uniform electric field is formed in at least two directions of the second electrode. In this way, no matter from which direction the air flow passes through the plasma generating device, it can be ionized to generate plasma, so that the air can be better sterilized and deodorized. In addition, in the present application, each electrode and the insulating dielectric layer are arranged compactly, occupying less space, without the need to add any additional equipment. The generated plasma has high energy, can flow to a relatively long distance along with the air flow, has good sterilization and deodorization effects, and low cost.

[0016] Furthermore, the first direction and the second direction are perpendicular to each other, so that electric fields can be respectively formed in two perpendicular directions, achieving a comprehensive coverage of the air flow, and being able to fully ionize all the air passing through the plasma generating module, thereby effectively improving the sterilization and deodorization effects.

[0017] Further, the size of the second electrode is smaller than that of the first electrode, so that when the plasma generating device is powered on, an electric field similar to a spindle shape can be formed between the first electrode and the second electrode, effectively increasing the area covered by the electric field and improving the ionization efficiency.

[0018] Further, through holes are provided in at least one of the first electrode, the second electrode, and the third electrode. When the plasma generating assembly is powered on, a discharge point can be formed at each through hole, which is equivalent to forming multiple discharge points on the three electrodes that can ionize air to generate plasma, effectively improving the ionization efficiency and being able to generate more plasma.

[0019] Further, the plasma generating part 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 sides of the insulating dielectric layers facing away from the second electrode, so that the first electrode and the second electrode are respectively disposed on both sides of the insulating dielectric layer. The two third electrodes are respectively disposed at both ends of the first electrode along the first direction, and a relatively independent space is enclosed by the two first electrodes and the two third electrodes. The second electrode is disposed in this space. When the plasma generating device is powered on, an electric field can be formed around the second electrode, so that the air coming from any direction can be effectively ionized, effectively improving the ionization efficiency and being able to better perform air sterilization and odor removal treatment.

[0020] Further, the plasma generating device further includes a housing and a fan. A ventilation structure is provided on the housing. The plasma generating part and the fan are both disposed in the housing. Under the action of the fan, air is passively sucked into the housing to fully contact with the plasma generating part, fully ionized to generate plasma, and can fully disturb the air flow in the housing, so that the air and the plasma are fully mixed, thereby being able to obtain better sterilization and odor removal effects.

[0021] In a second aspect, the present invention further provides an air conditioner configured with the plasma generating device according to any one of the foregoing solutions.

[0022] It should be noted that this air conditioner has all the technical effects of the foregoing plasma generating device, which will not be elaborated herein. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The preferred embodiments of the present invention will be described below by taking a wall-mounted air conditioner as an example and in conjunction with the drawings, in which:

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

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

[0026] Figure 3 It is Figure 2 the sectional view of the A-A plane in

[0027] Figure 4 the structure diagram of a plasma generating part according to an embodiment of the present invention;

[0028] Figure 5 the exploded structure diagram of a plasma generating part according to an embodiment of the present invention;

[0029] Figure 6 the structure diagram of a plasma generating device after removing the cover according to an embodiment of the present invention;

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

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

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

[0033] Figure 10 It is Figure 2 the simulated potential distribution diagram of the A-A section in

[0034] Figure 11 It is Figure 2 the simulated electric field distribution diagram of the A-A section in

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

[0036] List of reference signs:

[0037] 1. Plasma generating device; 11. Plasma generating part; 111. First electrode; 112. Second electrode; 113. Third electrode; 1131. Body; 1132. Flange; 114. Insulating dielectric layer; 1141. First mounting position; 1142. Second mounting position; 1143. Third mounting position; 1144. Fourth mounting position; 1145. Extended end; 11451. Groove; 115. Through hole; 116. Slot; 117. Power connection end; 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. Block; 12213. Opening; 12214. Limiting structure; 12215. Mounting table; 12216. Mounting post; 12217. Mounting hole; 12218. Vent hole; 1222. Second part; 12221. Card slot; 12222. Card hole; 12223. Notch; 13. Fan; 14. Indicator light; 2. Machine shell; 21. Air inlet; 22. Air outlet. Detailed implementation manners

[0038] The preferred implementation manners of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these implementation manners are only used to explain the technical principle of the present invention and are not intended to limit the protection scope of the present invention. It should be noted that although the above is described by taking the plasma generating device arranged in a wall-mounted air conditioner as an example, it is obvious that it can also be arranged in other types of air conditioners such as cabinet air conditioners, central air conditioners, duct machines, window air conditioners, or other types of air purification equipment such as air purifiers and disinfection machines.

[0039] It should be noted that in the description of the present invention, the terms indicating directions or positional relationships such as "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0040] In addition, it should also be noted that in the description of the present application, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0041] At present, common ozone devices and silver ion devices can usually only perform sterilization treatment, and activated carbon filter screens and photocatalyst devices can usually only perform odor removal treatment. To perform sterilization and odor removal treatment on air, two devices need to be configured simultaneously, and the sterilization and odor removal efficiency of each device is relatively low, occupying a large space and having a high cost. The negative ions generated by the negative ion device that can perform sterilization and odor removal treatment simultaneously are extremely easy to be adsorbed and neutralized, with a short lifespan and difficult to reach positions far away from it, resulting in limited sterilization and odor removal effects. Therefore, the plasma generating device of the present application includes a first electrode and a second electrode with opposite electrical properties disposed on both sides of an insulating dielectric layer, a third electrode electrically connected to the first electrode, and the first electrode, the second electrode, and the third electrode are respectively extended along a first direction and a second direction, so as to be able to form a uniform electric field in at least two directions of the second electrode, and obtain better sterilization and odor removal effects.

[0042] The following will Figures 1 to 12 describe the possible implementation manners of the plasma generating device of the present invention.

[0043] As Figures 1 to 6 shown, the plasma generating device 1 includes a plasma generating part 11, and the plasma generating part 11 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 part 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 are extended along a first direction, and the third electrode 113 is extended 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 powered on, the electrical properties of the first electrode 111 and the second electrode 112 are opposite. That is to say, the electrical properties of the first electrode 111 and the third electrode 113 are the same, the electrical properties of the first electrode 111 and the third electrode 113 are opposite to those of the second electrode 112, and together with the setting of the insulating dielectric layer 114, a uniform electric field can be generated between the first electrode 111 and the second electrode 112, and between the third electrode 113 and the second electrode 112. And because 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 outside the two directions parallel to and perpendicular to the second electrode 112. In this way, uniform electric fields can be formed in two mutually perpendicular directions respectively, forming a comprehensive coverage of the air flow. No matter from which direction the air flow passes through the plasma generating device 1, it can be ionized by the electric field to generate plasma, so as to better perform sterilization and odor removal treatment on the air and obtain better sterilization and odor removal effects.

[0044] It should be noted that the plasma generating device 1 of the present application is powered by an AC high-voltage power supply (such as a voltage of 2000V to 3000V, etc.). During operation, the electrical properties 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 electrodes, the second electrode 112 is a negative electrode; when the first electrode 111 and the third electrode 113 are negative electrodes, the second electrode 112 is a positive electrode.

[0045] It should be noted that the first direction and the second direction may not be perpendicular to each other, but rather the first direction and the second direction form an angle, and the range of this angle can be less than 90°.

[0046] In a possible implementation manner, the first electrode 111, the second electrode 112, and the third electrode 113 can be prepared from metal materials such as copper, stainless steel, and tungsten, and the insulating dielectric layer 114 can be prepared from inorganic insulating materials with a relatively large 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 ceramics.

[0047] As Figures 1 to 6 shown, the size of the second electrode 112 is smaller than that of the first electrode 111. Specifically, the radial size of the second electrode 112 is smaller than the radial size 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 generating device 1 is powered on, an electric field similar to a spindle shape 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 it is also possible that the size of the first electrode 111 is smaller than that 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 sizes of the first electrode 111 and the second electrode 112 in the vertical direction in

[0048] As 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 generally hexagonal in structure. A plurality of through holes 115 are respectively arranged on the first electrode 111, the second electrode 112, and the third electrode 113 in an array, forming a structure similar to a honeycomb. When the plasma generating device 1 is powered on, 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. At the same time, a discharge point can be formed at each through hole 115 of each electrode, which is equivalent to forming a plurality of discharge points on the three electrodes that can ionize air to generate plasma, effectively improving the ionization efficiency and being able to generate more plasma. It should be noted that the through holes 115 can also be set as holes of other possible shapes such as circular, polygonal, rectangular, square, elliptical, etc. Of course, through holes 115 can also be provided only on the first electrode 111, or 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, through holes 115 can also not be provided on all of the first electrode 111, the second electrode 112, and the third electrode 113, and plasma can be generated only by surface discharge of the first electrode 111, the second electrode 112, and the third electrode 113.

[0049] As Figures 1 to 6 shown and in accordance with Figure 3 the orientation shown in, the plasma generating part 11 includes two first electrodes 111 that are generally cylindrical, two insulating dielectric layers 114, two third electrodes 113, and one second electrode 112. The radial dimensions of each component are slightly different. That is to say, the plasma generating part 11 is set as a cylindrical structure, and is arranged from the outside to the inside in the order of the outer first electrode 111, the outer insulating dielectric layer 114, the second electrode 112, the inner insulating dielectric layer 114, and the inner first electrode 111 according to the radial dimensions. Specifically, in accordance with Figure 5As shown in the exploded view, the insulating dielectric layer 114 on the left is the outer-ring insulating dielectric layer 114, and the insulating dielectric layer 114 on the right is the inner-ring insulating dielectric layer 114. The first electrode 111 on the left is the outer-ring first electrode 111, and the first electrode 111 on the right is the inner-ring first electrode 111. The outer wall of the outer-ring 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-ring 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-ring first electrode 111 is disposed at the first mounting position 1141, and the inner-ring first electrode 111 is disposed 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, and the second electrode 112 is disposed in this mounting space. In this way, 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 facing away from the second electrode 112. Thus, the first electrode 111 and the second electrode 112 are respectively disposed on both sides of the insulating dielectric layer 114. The third electrode 113 includes a body 1131 and a flange 1132 extending outward along the circumferential direction of the body 1131. The body 1131 is generally in a ring structure and extends along the second direction (substantially the Figure 3 horizontal direction in the figure). A plurality of through holes 115 are arranged in sequence along the circumferential direction of the body 1131, and the flange 1132 extends along the vertical direction from the inner edge and the outer edge of the body 1131. That is to say, the third electrode 113 is generally a structure similar to an annular groove formed by the body 1131 and the flange 1132. The two third electrodes 113 are arranged along the first direction (substantially the Figure 3The vertical directions (in []) are respectively arranged at the upper and lower ends of the first electrode 111, that is, at the top and bottom of the first electrode 111 respectively. When assembled, the main bodies 1131 of the two third electrodes 113 are respectively abutted against the top and bottom of the inner ring insulating dielectric layer 114 and the outer ring insulating dielectric layer 114, and the flanges 1132 of the two third electrodes 113 are respectively connected to the inner ring first electrode 111 and the outer ring first electrode 111, so that the two third electrodes 113 are respectively arranged at both ends of the first electrode 111. In this way, a generally annular and relatively independent space is surrounded by the two first electrodes 111 and the two third electrodes 113, and the second electrode 112 is arranged in this space. Moreover, 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. In this way, the potential differences between the second electrode 112 and the first electrode 111 and between the second electrode 112 and the third electrode 113 are basically the same. In this way, when the plasma generating device 1 is powered on, an electric field can be formed on all sides such as the inner side, outer side, top side, and bottom side of the second electrode 112, and the electric field is evenly distributed everywhere. That is to say, a uniform electric field is formed around the second electrode 112, so that the air coming from any direction can be effectively ionized to generate plasma, effectively improving the ionization efficiency and being able to better sterilize and remove odors from the air.

[0050] To more clearly understand the electric field distribution of the plasma generating part 11, the inventor of the present application carried out a simulation in COMSOL. For the specific results, please refer to Figure 10 and Figure 11 . Among them, COMSOL is a multi-physics field simulation software with wide applications. The specific parameters and simulation process thereof will not be elaborated here. It can be seen that under the action of the two insulating dielectric layers 114 and by arranging the second electrode 112 in the space surrounded by the two first electrodes 111 and the two third electrodes 113, potential differences can be formed around the second electrode 112, and the potential distributions everywhere are relatively uniform, so that a large-area uniform electric field is obtained. Under the action of such an electric field, the air flowing through the plasma generating device 1 from any direction can be ionized and a large amount of plasma is generated, and no toxic ozone will be produced.

[0051] It should be noted that in this embodiment, the first direction is approximately Figure 3 the vertical direction in [], and the second direction is approximately Figure 3 the horizontal direction in [].

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

[0053] It should be noted that the third electrode 113 may also only include the main body 1131. In this case, the upper and lower ends of the first electrode 111 are directly electrically connected to the third electrodes 113 provided at the upper and lower ends of the first electrode 111. It should also be noted that the plasma generating section 11 may also only include one insulating dielectric layer 114. In this case, the plasma generating section 11 may include one first electrode 111, one second electrode 112, and one third electrode 113, or may include one first electrode 111, one second electrode 112, and two third electrodes 113. Of course, the plasma generating section 11 may also include three, four, five, or more insulating dielectric layers 114. The first electrode 111 and the second electrode 112 are respectively provided on both sides of the insulating dielectric layer 114 in an alternating manner, and the third electrode 113 is provided along the first direction at both ends of the first electrode 111. Taking the plasma generating section 11 including four insulating dielectric layers 114 as an example, the plasma generating section 11 includes the first electrode 111, the insulating dielectric layer 114, the second electrode 112, the insulating dielectric layer 114, the first electrode 111, the insulating dielectric layer 114, the second electrode 112, the insulating dielectric layer 114, the first electrode 111, which are sequentially sleeved from the outside to the inside, and the third electrodes 113 respectively provided at both ends of the first electrode 111 and the second electrode 112. In this case, the two third electrodes 113 are respectively electrically connected to each first electrode 111.

[0054] For the sake of convenience of description, the following takes the plasma generating section 11 including the first electrode 111, the insulating dielectric layer 114, the second electrode 112, the insulating dielectric layer 114, the first electrode 111, which are sequentially sleeved from the outside to the inside, and the two third electrodes 113 respectively provided at both ends of the first electrode 111 as an example and combines Figures 1 to 9 to elaborate in detail on the possible implementation manners of the plasma generating device 1 of the present invention.

[0055] As Figures 1 to 9As shown, the plasma generating device 1 further includes a housing 12. The housing 12 includes a base 122 and a cover 121 fastened to the base 122. An installation space is formed therein, and the plasma generating portion 11 is disposed in the installation space. The base 122 includes a first part 1221 and a second part 1222 that are fastened to each other. The first part 1221 is generally in a disc-shaped structure, and an installation plate 12211 is provided thereon. The installation plate 12211 extends along the circumferential direction of the first part 1221, and five clamping blocks 12212 are provided on its outer wall. The second part 1222 is generally in an inverted cover-shaped structure, and clamping grooves 12221 are provided on its inner wall at positions corresponding to the clamping blocks 12212. By the mutual engagement of the clamping grooves 12221 and the clamping blocks 12212, the first part 1221 and the second part 1222 are fastened together. When they are fastened well, the outer surface of the second part 1222 is generally flush with the outer edge of the first part 1221. The cover 121 is generally in an inverted cover-shaped structure, and five buckles 1211 extend downward from its lower edge. The five buckles 1211 are uniformly arranged along the circumferential direction of the cover 121. The second part 1222 forms an installation surface by indenting inward near the top, and clamping holes 12222 are provided on the installation surface at positions corresponding to the buckles 1211. By the clamping connection of the buckles 1211 and the clamping holes 12222, the cover 121 and the second part 1222 are clamped, thereby realizing the clamping connection between the cover 121 and the base 122 and forming the aforementioned installation space. When assembled, the outer surface of the cover 121 is generally flush with the outer surface of the second part 1222 to ensure the overall aesthetics.

[0056] It should be noted that the clamping blocks 12212 can also be provided on the first part 1221 and the clamping grooves 12221 can be provided on the second part 1222. Of course, the first part 1221 and the second part 1222 can also be fastened to each other by other possible means such as screwing, bonding, and plugging. It should also be noted that the buckles 1211 can also be provided on the second part 1222 and the clamping holes 12222 can be provided on the cover 121. Of course, the cover 121 can also be connected to the second part 1222 by other possible means such as screwing, bonding, and plugging.

[0057] Continue to refer to Figures 1 to 9 and in accordance with Figure 3In the orientation shown, a ventilation structure 1212 is provided on the cover body 121. The ventilation structure 1212 includes a first ventilation hole 12121 and a second ventilation hole 12122. The first ventilation hole 12121 is generally a circular hole, which is provided at the center of the top of the cover body 121. There are multiple second ventilation holes 12122, which extend from a position close to the first ventilation hole 12121 to a position close to the lower edge of the cover body 121 and are arranged along the circumferential direction of the cover body 121. When the cover body 121 is fastened to the base 122, there is a gap between the lower edge of the cover body 121 between two adjacent buckles 1211 and the second part 1222. An opening 12223 is provided on the second part 1222, and an opening 12213 is provided on the mounting plate 12211 at the corresponding position. A plurality of ventilation holes 12218 arranged along its circumferential direction are provided at the center of the first part 1221. These gaps, openings 12213, and ventilation holes 12218 can also serve as the ventilation structure 1212 of the housing 12 together with the first ventilation hole 12121 and the second ventilation hole 12122. 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 can also include any one or more of the above-mentioned first ventilation hole 12121, second ventilation hole 12122, gap, opening 12213, and ventilation hole 12218.

[0058] As Figures 1 to 9 shown, a plurality of hexagonal through holes 115 are provided on both of the two first electrodes 111, the second electrode 112, and the third electrode 113 provided on the top of the first electrode 111. A plurality of strip holes 116 are provided on the third electrode 113 provided at the bottom of the first electrode 111, so that discharge locations can be formed at the hexagonal through holes 115 and the strip holes 116 when the plasma generating device 1 is powered on. The lower edges of the two insulating dielectric layers 114 extend downward to have extending ends 1145, and the extending ends 1145 correspond to the number and setting positions of the strip holes 116 one by one. Grooves 11451 are formed on each of the extending ends 1145, and the grooves 11451 communicate with the corresponding mounting positions respectively. The lower edges of the two first electrodes 111 and one second electrode 112 respectively extend outward to have power connection ends 117. When assembled, the extending ends 1145 pass through the strip holes 116 and extend to the lower side of the third electrode 113, and each power connection end 117 is arranged in the groove 11451 on the corresponding extending end 1145 and extends to the outside of the groove 11451.

[0059] The first part 1221 is provided with a limiting structure 12214 inside the mounting plate 12211. The limiting structure 12214 includes two groups of arc-shaped plates. Each group of arc-shaped plates is composed of two arc-shaped plates with different radial dimensions. The arc-shaped plate with a larger radial dimension and the arc-shaped plate with a smaller radial dimension are arranged in sequence along the direction close to the mounting plate 12211. There is a gap between the ends of the two groups of arc-shaped plates, and at least a part of the two gaps is aligned with the notch 12223 on the second part 1222 and the opening 12213 provided on the mounting plate 12211 to facilitate the passage of air flow. An installation table 12215 is arranged inside the limiting structure 12214. The installation table 12215 includes two arc-shaped strips, and the two arc-shaped strips are respectively located inside the two groups 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 depression at the position corresponding to the protruding end 1145 of the insulating dielectric layer 114.

[0060] During assembly, first assemble the first electrode 111, the second electrode 112, the third electrode 113 and the insulating dielectric layer 114 together to form the plasma generating part 11. Then align the protruding end 1145 with each depression and seat the plasma generating part 11 on the installation table 12215. When assembled, the outer wall of the body 1131 of the third electrode 113 provided at the bottom of the first electrode 111 abuts against the upper surface of the installation table 12215. Each power connection end 117 extends from the groove 11451 to the space between the installation table 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] As Figures 1 to 9As shown, the plasma generating device 1 further includes a fan 13. For example, the fan 13 is an axial flow fan 13, and three screw holes are provided on the fan 13. Inside the limiting structure 12214 of the first part 1221, three mounting posts 12216 are formed at positions corresponding to the respective screw holes, and mounting holes 12217 are respectively formed on the respective mounting posts 12216. The first part 1221 is further provided with a plurality of ventilation holes 12218 inside the limiting structure 12214. During assembly, by passing fasteners (such as screws, bolts, etc.) through the screw holes and the mounting holes 12217 in sequence, the fan 13 can be arranged inside the housing 12. When assembled, the axis of the fan 13 and the axis of the cylindrical structure of the plasma generating part 11 both extend along the first direction, and the axes of the two coincide with each other. That is to say, the fan 13 and the plasma generating part 11 are coaxially arranged. In this way, under the action of the fan 13, air can be passively sucked into the housing 12 through the first ventilation hole 12121, the second ventilation hole 12122, the gap, the opening 12213, and the ventilation holes 12218, and be passively blown out of the housing 12. During this process, the air flow inside the housing 12 is fully disturbed, can contact the plasma generating part 11 more fully and evenly, ionize to generate more plasma, and can make the air and the plasma fully mixed, so as to obtain better sterilization and deodorization effects. Obviously, the axis of the fan 13 and the axis of the cylindrical structure may not coincide, and the axes of the two may be parallel to each other or have an included angle. It should be noted that the fan 13 can also be arranged inside the housing 12 by other possible means such as snap connection and plug connection. Of course, the plasma generating device 1 may not include the fan 13.

[0062] As Figure 3 and Figure 8 shown, the plasma generating device 1 further includes an indicator light 14. The indicator light 14 is arranged between the mounting plate 12211 and the limiting structure 12214. Through the indicator light 14, the operating state of the plasma generating device 1 can be displayed, and the user can clearly know the actual operating situation of the plasma generating device 1 through the indicator light 14. For example, when the indicator light 14 shows red, it means that the plasma assembly is not operating; when the indicator light 14 shows green, it means that the plasma assembly is operating normally, etc. Among them, the indicator light 14 can be an LED light strip or LED lamp beads, etc. Taking the indicator light 14 as an LED light strip as an example, the indicator light 14 can be set as a substantially circular ring-shaped light strip, and the outer shape of the light strip is similar to the circular ring-shaped space between the mounting plate 12211 and the limiting structure 12214. Of course, the indicator light 14 can also be composed of multiple arc-shaped light strips, and the multiple arc-shaped light strips are arranged at intervals along the circumferential direction of the mounting plate 12211. Obviously, the plasma generating device 1 may not be equipped with the indicator light 14.

[0063] Next, refer to Figures 1 to 9 , Figure 12To illustrate a possible implementation of installing the plasma generating device 1 of the present application on a wall-mounted air conditioner.

[0064] As Figures 1 to 9 , Figure 12 shown, the wall-mounted air conditioner includes a housing 2, in which a heat exchanger (not shown) and a fan (not shown) are provided. The housing 2 has an air inlet 21 and an air outlet 22. Under the action of the fan, indoor air enters the housing 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 housing 2 close to the air outlet 22. For example, the installation structure can be an adhesive layer, an installation groove, an installation hole, a buckle or other possible structures. The plasma generating device 1 is connected to the installation structure through the matching of its base 122, and is thus arranged at a position on the side close to the air outlet 22. Among them, the base 122 can be connected to the installation structure through possible methods such as screwing, clamping, and bonding. When the wall-mounted air conditioner is operating, the air sent out through the air outlet 22 will flow through the plasma generating device 1. Under the action of the internal fan 13, the air will be sucked into the housing 12, be fully disturbed, come into full contact with the plasma generating part 11, be ionized to generate plasma, and then be blown out of the housing 12, mix with the air flow flowing through the air outlet 22, and diffuse into the indoor space along with the air flow, further performing sterilization and odor removal treatment, so as to obtain a better sterilization and odor removal effect.

[0065] In summary, in the preferred technical solution of the present invention, by arranging the first electrode 111 and the second electrode 112 to extend along the first direction, the third electrode 113 to extend along the second direction, electrically connecting the first electrode 111 and the third electrode 113, and making the electricities of the first electrode 111 and the second electrode 112 opposite, an uniform electric field can be formed at least in two directions. No matter from which direction the air flow passes through the plasma generating device 1, it can be ionized by the electric field to generate plasma, so that better sterilization and deodorization effects can be obtained. By making the first direction perpendicular to the second direction, a comprehensive coverage of the air flow can be formed, so that better sterilization and deodorization effects can be obtained. By providing through holes 115 on the first electrode 111, the second electrode 112 and the third electrode 113, a plurality of discharge points can be formed on each electrode, effectively improving the ionization efficiency. By making the plasma generating part 11 include two first electrodes 111, one second electrode 112 and two third electrodes 113, and arranging the second electrode 112 in the space surrounded by the first electrode 111 and the third electrode 113, an electric field can be formed around the second electrode 112, and the air coming from any direction can be ionized, so as to better sterilize and deodorize the air. By arranging the plasma generating part 11 into a cylindrical structure and arranging the fan 13 inside the cylindrical structure, the air can be passively sucked in and blown out under the action of the fan 13, and the air flow in the housing 12 can be fully disturbed, so that the air is fully mixed with the plasma, improving the sterilization and deodorization effects.

[0066] In addition, the present invention also provides an air conditioner configured 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 elaborated here.

[0068] Of course, the above-mentioned replaceable embodiments can be used in cross combination with each other, as well as between the replaceable embodiments and the preferred embodiments, so as to combine new embodiments suitable for more specific application scenarios.

[0069] In addition, those skilled in the art can understand that although some of the embodiments described herein include certain features included in other embodiments rather than other features, the combination of the features of different embodiments means that it is within the scope of the present invention and forms different embodiments. For example, in the claims of the present invention, any one of the claimed embodiments can be used in any combination.

[0070] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, 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 the present invention.

Claims

1. A plasma generating device, characterized in that, The plasma generating device (1) includes a plasma generating part (11). The plasma generating part (11) 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 arranged on both sides of the insulating dielectric layer (114). At least a part of the third electrode (113) is aligned with the second electrode (112), and at least a part 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) are arranged to extend in a first direction, the third electrode (113) is arranged to extend in a second direction, the third electrode (113) is electrically connected to the first electrode (111), and when the plasma generating device (1) is powered on, the electric polarities of the first electrode (111) and the second electrode (112) are opposite to each other.

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

3. The plasma generating device 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 device according to claim 1, characterized in that, Through holes (115) are provided on at least one of the first electrode (111), the second electrode (112) and the third electrode (113).

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

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

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

8. The plasma generating device according to claim 7, characterized in that, The plasma generating device (1) further includes a fan (13). The fan (13) is arranged inside the housing (12), and the fan (13) is configured to be able to introduce air into the housing (12).

9. The plasma generating device according to claim 8, wherein The plasma generating part (11) is arranged in a cylindrical structure, and the fan (13) is arranged inside the cylindrical structure.

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

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