Air purification module and air conditioner

Abstract

The invention discloses an air purification module and an air conditioner, wherein the purification module comprises a shell, a carbon fiber electrode and a negative high voltage part; a conductive potting cavity and an insulating potting cavity are arranged in the shell, the conductive potting cavity is potted with conductive carbon slurry, and the insulating potting cavity is potted with insulating glue; the bottom of the carbon fiber electrode is inserted in the conductive potting cavity, the emission tip extends from the shell, and the carbon fiber electrode absorbs moisture from the air; the negative high voltage part is arranged in the insulating potting cavity, and is used to provide negative high voltage to the electrode, and the wire drawn from the negative high voltage part extends from the insulating potting cavity to the conductive potting cavity to realize the contactless electrical connection between the carbon fiber electrode and the wire. The carbon fiber electrode does not directly contact the metal wire, so as to avoid the corrosion of the wire after the carbon fiber electrode absorbs water, and the conductive carbon slurry is used as the intermediate medium to realize the effective electrical connection between the carbon fiber electrode and the metal wire, thereby improving the reliability and stability of the carbon fiber electrode, and avoiding the corrosion of the wire after the carbon fiber electrode absorbs water.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to an air purification module and an air conditioner. Background Art

[0002] As people pay more and more attention to air purification, more and more air conditioners have the function of sterilization and purification. Nano water ion technology refers to nano-scale electrostatic atomization of water particles. This technology is to discharge water droplets on the tip electrode with high voltage, so that they gradually split into water mist and decompose into highly active nano-scale water ions, which contain a large number of highly active hydroxyl free radicals. Hydroxyl free radicals have extremely high oxidizing properties and can decompose and remove bacteria, microorganisms, formaldehyde, VOC and other components in the air.

[0003] There is a kind of carbon fiber water-absorbing conductive electrode on the market, which is loaded with water-absorbing factors inside, absorbs water from the air, and then uses high voltage electricity to ionize it into nano water ions and release it into the air to purify the air. However, this carbon fiber electrode is made by curing carbon fiber bundles with resin curing agents and then carbonizing them at high temperatures. It has high structural strength and rich microporous structures inside, which can load water-absorbing factors to absorb water from the air.

[0004] There are basically two methods for electrical connection of carbon fiber at present. One is to directly insert a metal needle into the carbon fiber electrode to supply power to it. The other is to fix and conduct electricity through a metal screw. One end of the metal screw is inserted into the carbon fiber electrode from the side, and the other end is used to press the high-voltage wire to the shell through the shell structure using a terminal. The above two methods have the following shortcomings:

[0005] ①Most of the water-absorbing factors currently used in the market, such as calcium chloride and gel, are corrosive and will corrode metal needles or screws;

[0006] ② Even if corrosion-resistant metal materials are used as metal needles or metal screws (such as titanium alloy, 317L, etc.), on the one hand, the cost is high, and on the other hand, because the carbon fiber electrode is connected to negative high voltage electricity, the metal will lose electrons under the condition of power on, forming metal ions, and then electrochemical corrosion will occur, accelerating the corrosion of the metal needle or screw;

[0007] ③ When metal screws or metal needles are inserted into the carbon fiber electrode, the carbon fiber is easily broken and cracked due to high temperature carbonization, causing damage to the shape of the electrode.

[0008] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0009] In response to the problems pointed out in the background technology, the present invention proposes an air purification module and an air conditioner, in which the carbon fiber electrode is not in direct contact with the metal wire to avoid corrosion of the wire after the carbon fiber electrode absorbs water. Conductive carbon slurry is used as an intermediate medium to achieve effective electrical connection between the carbon fiber electrode and the metal wire, thereby improving the reliability and stability of the carbon fiber electrode.

[0010] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0011] In some embodiments of the present application, an air purification module is provided, comprising:

[0012] A shell, wherein a conductive potting cavity and an insulating potting cavity are provided therein, wherein the conductive potting cavity is potted with conductive carbon paste, and the insulating potting cavity is potted with insulating glue;

[0013] A carbon fiber electrode, the bottom of which is inserted into the conductive potting cavity, the top emitting tip of the carbon fiber electrode extends from the shell to release negatively charged nano water ions into the air, and the carbon fiber electrode absorbs moisture from the air;

[0014] A negative high voltage part is arranged in the insulating potting cavity and is used to provide negative high voltage to the carbon fiber electrode. The wire led out from the negative high voltage part extends from the insulating potting cavity to the conductive potting cavity to realize contactless electrical connection between the carbon fiber electrode and the wire.

[0015] In some embodiments of the present application, the insulating potting cavity includes a first insulating potting cavity and a second insulating potting cavity that are connected, the first insulating potting cavity and the conductive potting cavity are arranged on the left and right, the front opening of the first insulating potting cavity is used as a potting port for insulating glue, the front opening of the conductive potting cavity is used as a potting port for conductive carbon paste, and the second insulating potting cavity is located at the front opening of the conductive potting cavity to block the front opening of the conductive potting cavity;

[0016] The negative high voltage part is arranged in the first insulating potting cavity, and the wire led out from the negative high voltage part extends into the conductive potting cavity through the first insulating potting cavity and the second insulating potting cavity, and the part of the wire extending into the conductive potting cavity is a bare copper core wire;

[0017] A mounting hole is provided on the top of the conductive potting cavity, and the carbon fiber electrode is inserted into the conductive potting cavity from top to bottom through the mounting hole to contact with the conductive carbon paste.

[0018] In some embodiments of the present application, the conductive potting cavity is surrounded by a first side wall, a second side wall, an inner top wall, and an arc-shaped side wall, the first side wall and the second side wall are arranged opposite to each other on the left and right, the arc-shaped side wall is connected to the rear side of the first side wall and the second side wall, the inner top wall is connected to the top of the first side wall and the second side wall, a boss portion extends upward from the arc-shaped side wall and the inner top wall, and the boss portion is provided with the mounting hole connected to the conductive potting cavity from top to bottom;

[0019] The copper core wire at one end of the conductive wire extends into the conductive potting cavity along the second side wall.

[0020] In some embodiments of the present application, abutment platform is provided at the bottom of the arc-shaped side wall, the bottom end of the carbon fiber electrode abuts against the abutment platform, and conductive carbon slurry is filled between the bottom end of the carbon fiber electrode and the bottom wall of the conductive potting cavity.

[0021] In some embodiments of the present application, a connecting groove is provided on the arc-shaped side wall, and the connecting groove extends downward to the bottom wall of the conductive potting cavity. The abutment platforms are respectively provided on the left and right sides of the connecting groove. When conductive carbon slurry is poured into the conductive potting cavity, part of the conductive carbon slurry flows into the connecting groove to contact the circumferential wall of the carbon fiber electrode.

[0022] In some embodiments of the present application, a plurality of ventilation holes arranged at intervals are provided on the inner wall of the mounting hole, and external air flows into the ventilation holes to fully contact the carbon fiber electrode.

[0023] In some embodiments of the present application, a connecting side wall is provided between the second side wall and the left side wall surrounding the first insulating potting cavity, the wire extends along the connecting side wall to the conductive potting cavity, and a wiring groove for limiting the wire is provided at the bottom of the connecting side wall.

[0024] In some embodiments of the present application, the housing includes a first housing and a second housing, the conductive potting cavity and the insulating potting cavity are provided in the first housing, and the top of the first housing has an open area to expose the mounting hole;

[0025] The second shell is detachably connected to the first shell, and the second shell includes a second shell vertical portion and a second shell transverse portion, the second shell vertical portion blocks the front openings of the first insulating potting cavity and the second insulating potting cavity, the second shell transverse portion blocks the top open area of ​​the first shell, and the second shell transverse portion is provided with an ion release port that is opposite to the mounting hole, and the emission tip of the carbon fiber electrode is exposed from the ion release port.

[0026] In some embodiments of the present application, during production, the negative high voltage part is firstly arranged in the first insulating potting cavity, and the copper core wire at one end of the wire is extended into the conductive potting cavity;

[0027] Then, conductive carbon slurry is poured into the conductive potting cavity from the front opening of the conductive potting cavity;

[0028] Then, the carbon fiber electrode is inserted into the conductive carbon paste through the mounting hole, the carbon fiber electrode is rotated to fully contact with the conductive carbon paste, and the carbon fiber electrode is separated from the copper core wire of the conductor;

[0029] After the conductive carbon paste is statically solidified, insulating glue is poured into the insulating potting cavity from the front opening of the insulating potting cavity, and the insulating glue is statically solidified.

[0030] In some embodiments of the present application, a wiring groove for limiting the position of the wire is provided on the wiring path of the wire extending from the insulating potting cavity to the conductive potting cavity.

[0031] The present invention also provides an air conditioner, comprising the air purification module as described above.

[0032] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0034] Figure 1 is a structural schematic diagram of an air-conditioning indoor unit according to an embodiment;

[0035] Figure 2 This is a schematic diagram of the structure of the indoor unit of the air conditioner according to the embodiment after the top cover plate is omitted;

[0036] Figure 3 is a structural schematic diagram of an air purification module according to an embodiment;

[0037] Figure 4 This is a schematic structural diagram of the air purification module according to the embodiment after omitting the second housing;

[0038] Figure 5 is a schematic structural diagram of an air purification module according to an embodiment after vertical sectioning at the carbon fiber electrode;

[0039] Figure 6 is a schematic diagram of the structure of an air purification module after horizontal sectioning according to an embodiment;

[0040] Figure 7 is a schematic structural diagram of a first housing according to an embodiment;

[0041] Figure 8 for Figure 7 The structure shown is a schematic diagram of the structure observed from Q1;

[0042] Fig. 9 is a schematic structural diagram of a second housing according to an embodiment;

[0043] Fig.10 for Fig. 9 The structure shown is a schematic diagram of the structure observed from Q2;

[0044] Fig.11 is a schematic structural diagram of a carbon fiber electrode, a wire, and a cured conductive carbon slurry according to an embodiment;

[0045] Fig.12 for Fig.11 The structure shown is a schematic diagram of the structure after omitting the carbon fiber electrode;

[0046] Fig.13 is a schematic structural diagram of a connecting plate according to an embodiment;

[0047] Fig.14 is a schematic structural diagram of a wiring sealing portion according to an embodiment;

[0048] Fig.15 is a top view of a wiring sealing portion according to an embodiment;

[0049] Fig.16 for Fig.15 Middle AA section view;

[0050] Reference numerals:

[0051] 100-housing, 110-partition plate, 120-duct area, 130-air outlet, 140-return air outlet;

[0052] 210-heat exchanger, 220-fan, 230-electrical box, 240-water tray;

[0053] 300-connecting plate;

[0054] 400 - wiring sealing portion, 410 - wiring hole, 420 - first annular protrusion, 421 - first inclined surface, 430 - second annular protrusion, 431 - second inclined surface, 440 - annular groove, 450 - slit;

[0055] 500-air purification module;

[0056] 510-shell, 511-boss, 512-mounting hole, 513-ventilation hole, 514-communication groove, 515-rest platform, 516-wiring groove, 5171-first side wall, 5172-second side wall, 5173-inner top wall, 5174-arc-shaped side wall, 5175-connecting side wall, 518-first shell, 5181-opening, 519-second shell, 5191-second shell vertical part, 5192-second shell horizontal part, 5193-ion release port, 5194-buckle;

[0057] 520-conductive potting cavity;

[0058] 530-insulation potting chamber, 531-insulation potting chamber part 1, 532-insulation potting chamber part 2;

[0059] 540-carbon fiber electrode;

[0060] 550-negative high voltage department;

[0061] 560-conductor wire, 561-copper core wire;

[0062] 570-conductive carbon paste, 571-conductive carbon paste part 1, 5172-conductive carbon paste part 2, 5173-conductive carbon paste part 3. DETAILED DESCRIPTION

[0063] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0064] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0065] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0066] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0067] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0068] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0069] [Basic operating principle of air conditioner]

[0070] In the present application, the air conditioner performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion and evaporation to cool or heat the indoor space.

[0071] The low-temperature and low-pressure refrigerant enters the compressor, which compresses it into high-temperature and high-pressure refrigerant gas and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and the heat is released to the surrounding environment through the condensation process.

[0072] The expansion valve expands the high-temperature and high-pressure liquid refrigerant condensed in the condenser into a low-pressure liquid refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the low-temperature and low-pressure refrigerant gas to the compressor. The evaporator can achieve a cooling effect by utilizing the latent heat of evaporation of the refrigerant to exchange heat with the material to be cooled. In the entire cycle, the air conditioner can adjust the temperature of the indoor space.

[0073] The outdoor unit of the air conditioner refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, the indoor unit of the air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit.

[0074] The indoor heat exchanger and the outdoor heat exchanger function as a condenser or an evaporator. When the indoor heat exchanger functions as a condenser, the air conditioner performs a heating mode; when the indoor heat exchanger functions as an evaporator, the air conditioner performs a cooling mode.

[0075] Among them, the indoor heat exchanger and the outdoor heat exchanger are converted to serve as a condenser or an evaporator, generally using a four-way valve. Please refer to the settings of conventional air conditioners for details, which will not be elaborated here.

[0076] The refrigeration working principle of the air conditioner is: the operation of the compressor makes the indoor heat exchanger (in the indoor unit, it is the evaporator at this time) in an ultra-low pressure state, the liquid refrigerant in the indoor heat exchanger evaporates rapidly to absorb heat, and the wind blown out by the indoor fan is cooled by the indoor heat exchanger coil and becomes cold air blown into the room. The evaporated refrigerant is pressurized by the compressor and condensed into liquid under the high-pressure environment of the outdoor heat exchanger (in the outdoor unit, it is the condenser at this time), releasing heat, and dissipating the heat into the atmosphere through the outdoor fan. This cycle achieves the cooling effect.

[0077] The heating working principle of the air conditioner is as follows: the gaseous refrigerant is pressurized by the compressor, becomes a high-temperature and high-pressure gas, enters the indoor heat exchanger (the condenser at this time), condenses and liquefies to release heat, becomes a liquid, and heats the indoor air at the same time, thereby achieving the purpose of raising the indoor temperature. The liquid refrigerant is decompressed by the throttling device and enters the outdoor heat exchanger (the evaporator at this time), evaporates and absorbs heat to become a gas, and at the same time absorbs the heat of the outdoor air (the outdoor air becomes colder), becomes a gaseous refrigerant, and enters the compressor again to start the next cycle.

[0078] [Indoor unit]

[0079] In some embodiments of the present application, refer to Figure 1 and Figure 2 The indoor unit includes a housing 100, which constitutes the outer contour of the indoor unit and is a flat rectangular structure. An air outlet 130 is arranged at the front side of the housing 100, and an air return port 140 is arranged at the rear side. The air outlet 130 and the air return port 140 are connected to each other front and back.

[0080] An installation cavity is formed in the housing 100 for installing components such as the heat exchanger 210 , the water receiving tray 240 , the fan 220 , and the electrical box 230 .

[0081] The housing 100 is divided into a front cavity and a rear cavity arranged front and back by a partition plate 110 . The front cavity is connected to the air outlet 130 , and the rear cavity is connected to the air return port 140 .

[0082] The heat exchanger 210 and the water receiving pan 240 are arranged in the front cavity. The heat exchanger 210 is located on the air flow path between the return air port 140 and the air outlet 130 for exchanging heat with the air passing therethrough. The water receiving pan 240 is arranged below the heat exchanger 210 for collecting condensed water.

[0083] One end of the heat exchanger 210 is fixedly connected to the left side wall of the housing 100, and the other end of the heat exchanger 210 is fixed by a connecting plate 300. One side of the connecting plate 300 is connected to the air inlet side of the heat exchanger 210, and the other side is connected to the air outlet side of the heat exchanger 210.

[0084] A pipe routing area 120 for routing the heat exchange tube group is formed between the connecting plate 300 and the right side wall of the outer shell 100. The heat exchanger 210 and the pipe routing area 120 are arranged on the left and right sides in the front cavity. The connecting plate 300 separates the heat exchanger 210 from the pipe routing area 120. The pipe routing area 120 is equivalent to being connected to the air inlet side of the heat exchanger 210. The left side of the connecting plate 300 faces the air outlet side of the heat exchanger 210, and the right side of the connecting plate 300 faces the pipe routing area 120.

[0085] The fan 220 and the electrical box 230 are arranged in the rear cavity. The fan 220 and the electrical box 230 are arranged on the left and right sides of the rear cavity. The electrical box 230 is arranged on the air inlet side of the heat exchanger 210. The partition plate 110 is provided with a vent connected to the air outlet of the fan 220.

[0086] Under the power of the fan 220, the external air flows into the indoor unit through the return air port 140, flows from the rear cavity to the front cavity, and after heat exchange in the heat exchanger 210, flows out from the air outlet 130 to achieve air heat exchange regulation.

[0087] [Air purification module]

[0088] An air purification module 500 is provided at the air outlet 130, or the return air outlet 140, or somewhere in the internal air duct of the indoor unit to purify the air flowing through the indoor unit and improve the indoor air quality.

[0089] In some embodiments of the present application, continue to refer to Figure 1 and Figure 2An air purification module 500 is provided on the connecting plate 300, and the air purification module 500 faces the air outlet side of the heat exchanger 210, that is, the air purification module 500 is provided at the air outlet 130, and the air purification module 500 is used to purify the air after heat exchange by the heat exchanger 210 to improve the air quality.

[0090] The air purification module 500 is integrated and installed on the connecting plate 300, which has a compact structure and can directly purify the air at the air outlet 130 to ensure the quality of the air flowing into the room.

[0091] The air purification module 500 is connected to the electrical box 230 via an electric wire (not shown) to realize power supply and control of the air purification module 500 .

[0092] In some embodiments of the present application, the structure of the air purification module 500 is as shown in FIG. Figures 3 to 12 , which mainly includes a shell 510, a carbon fiber electrode 540, a negative high voltage part 550 and the like.

[0093] The internal cavity of the shell 510 is used to install the carbon fiber electrode 540 and the negative high voltage part 550. The negative high voltage part 550 is used to provide negative high voltage to the carbon fiber electrode 540. The negative high voltage part 550 is connected to the electrical box 230 through wires to realize the electrical box 230 to power and control the air purification module 500.

[0094] The carbon fiber electrode 540 and the negative high voltage part 550 are integrated and installed in the same shell 510. The overall structure is more compact and occupies less space, which is convenient for installation on the indoor unit, improving the convenience of installation. Due to its small size, the wind resistance caused at the air outlet is small.

[0095] The shell 510 is of a rectangular structure, forming the outer contour of the air purification module 500 . The shell 510 is fixedly connected to the connecting plate 300 , so that the air purification module 500 is fixedly installed on the connecting plate 300 .

[0096] The carbon fiber electrode 540 absorbs moisture from the air, and the emission tip of the carbon fiber electrode 540 extends from the shell to release negatively charged nano-water ions into the air. The negatively charged nano-water ions are diffused into the air to sterilize and purify the air.

[0097] Negative charge can charge particles in the air and cause them to aggregate. After increasing their volume and weight, they will settle to the ground, or the charged particles will be adsorbed to the nearest zero potential (the ground), thereby removing particles such as PM2.5 from the air.

[0098] The hydroxyl free radicals produced by high-voltage ionization in nano-water ions have extremely strong oxidizing properties. When they come into contact with bacteria and viruses on the surface of particles or in the air, the hydroxyl free radicals grab hydrogen from the bacterial cell walls, thereby destroying the cell wall structure and inactivating the cells. Due to its strong oxidizing effect, it denatures proteins, thereby playing a role in sterilization and disinfection.

[0099] The carbon fiber electrode 540 is hydrophilic. The electrode absorbs moisture from the air and uses hydrophilic functional groups and capillary action to guide the moisture to its emission tip, ensuring that there is enough moisture at the emission tip to improve the reliability of nano-water ion generation. After the carbon fiber electrode 540 is powered on, the emission tip can be excited to ionize ions.

[0100] In a specific embodiment, the carbon fiber electrode 540 is made by curing a carbon fiber bundle and a resin adhesive in a mold and carbonizing at high temperature, and then ultrasonically impregnating it in a calcium chloride solution. It can absorb water from the air. The carbon fiber electrode 540 is required to have no burrs, cracks, etc. in appearance.

[0101] The negative high voltage unit 550 provides negative high voltage to the carbon fiber electrode 540, so that the generated nano water ions contain negative ion components, and the negative ions and hydroxyl radicals coexist in the nano water ions, thereby improving the air purification ability.

[0102] Reference Figures 3 to 6 A conductive potting cavity 520 and an insulating potting cavity 530 are provided in the shell 510 . The conductive potting cavity 520 is filled with conductive carbon paste 570 , and the insulating potting cavity 530 is filled with insulating glue.

[0103] The bottom of the carbon fiber electrode 540 is inserted into the conductive potting cavity 520 to achieve fixed installation of the carbon fiber electrode 540, and the top emission tip of the carbon fiber electrode 540 extends from the shell 510 to release negatively charged nano water ions into the air.

[0104] The negative high voltage part 550 is arranged in the insulating potting cavity 530 and is used to provide negative high voltage to the carbon fiber electrode 540. The wire 560 led out from the negative high voltage part 550 extends from the insulating potting cavity 530 to the conductive potting cavity 520. The end of the wire 560 (that is, the part extending into the conductive potting cavity 520) has no contact with the carbon fiber electrode 540, and there is a certain distance between the two to achieve contactless electrical connection between the carbon fiber electrode 540 and the wire 560.

[0105] The insulating potting cavity 530 plays a role in fixing and sealing the negative high voltage part 550 , thereby improving the installation reliability and waterproofness of the negative high voltage part 550 .

[0106] The conductive carbon paste 570 has two functions: one is to realize the fixed installation of the carbon fiber electrode 540 , and the other is to realize the contactless electrical conduction between the carbon fiber electrode 540 and the wire 560 .

[0107] By using the conductive carbon paste 570 as an intermediate medium, an effective, contactless electrical connection between the carbon fiber electrode 540 and the wire 560 is achieved, achieving the following effects:

[0108] ① Low resistance, which can effectively realize electrical conduction;

[0109] ② Corrosion resistance. This electrical connection method and structure uses carbon material as the intermediate connection medium. Due to the chemical stability of carbon material, it can resist strong acid and alkali and the electrochemical corrosion that may occur under such conditions, and has high stability;

[0110] ③ High structural strength. The conductive carbon slurry is a mixture of epoxy resin and conductive graphite powder. After curing, it has high strength. On the one hand, it can be used to fix the carbon fiber electrode 540, and on the other hand, it can be used to pot the metal wire of the metal conductor to prevent chemical corrosion of the metal conductor;

[0111] ④ This connection method will not cause any damage to the carbon fiber electrode 540.

[0112] In some embodiments of the present application, refer to Figures 4 to 6 The insulating potting cavity 530 includes a first insulating potting cavity 531 and a second insulating potting cavity 532 which are connected. The first insulating potting cavity 531 and the conductive potting cavity 520 are arranged on the left and right. The front opening of the first insulating potting cavity 531 is used as a filling port for insulating glue, and the front opening of the conductive potting cavity 520 is used as a filling port for conductive carbon paste. The second insulating potting cavity 532 is located at the front opening of the conductive potting cavity 520 to seal the front opening of the conductive potting cavity.

[0113] The conductive potting cavity 520 and the first insulating sealing cavity 531 are arranged on the left and right, and the carbon fiber electrode 540 and the negative high voltage part 550 are installed in partitions, so that the two functional modules are independent of each other in physical space to avoid mutual interference.

[0114] The negative high voltage part 550 is disposed in the first insulating potting cavity 531 , and the wire 560 led out from the negative high voltage part 550 extends into the conductive potting cavity 520 through the first insulating potting cavity 531 and the second insulating potting cavity 532 .

[0115] The portion of the wire 560 extending into the conductive potting cavity 520 is a bare copper core wire 561 , so as to improve the conductivity between the wire 560 and the conductive carbon paste 570 .

[0116] A mounting hole 512 is provided at the top of the conductive potting cavity 520 , and the carbon fiber electrode 540 is inserted into the conductive potting cavity 520 from top to bottom through the mounting hole 512 to contact with the conductive carbon paste 570 .

[0117] In some embodiments of the present application, the assembly process of the air purification module is as follows:

[0118] During production, the negative high voltage part 550 is first fixed in the first insulating potting cavity 531, and the copper core wire 561 at one end of the wire is extended into the conductive potting cavity 520;

[0119] Then, a conductive carbon paste 570 is poured into the conductive potting cavity 520 from the front opening of the conductive potting cavity 520, and the conductive carbon paste 570 is bonded to the copper core wire 561;

[0120] Then, the carbon fiber electrode 540 is inserted into the conductive carbon paste 570 through the mounting hole 512, and the carbon fiber electrode 540 is rotated to fully contact with the conductive carbon paste 570, and the carbon fiber electrode 540 is separated from the copper core wire 561 of the conductor;

[0121] After the conductive carbon paste 570 is statically solidified, insulating glue is poured into the insulating potting cavity 530 from the front opening of the insulating potting cavity 530 and the insulating glue is statically solidified.

[0122] In some embodiments of the present application, refer to Figures 5 to 8 The conductive potting cavity 520 is surrounded by a first side wall 5171, a second side wall 5172, an inner top wall 5173, and an arcuate side wall 5174. The first side wall 5171 and the second side wall 5172 are arranged opposite to each other on the left and right. The arcuate side wall 5174 is connected to the rear side of the first side wall 5171 and the second side wall 5172. The inner top wall 5173 is connected to the top of the first side wall 5171 and the second side wall 5172. A boss portion 511 extends upward from the arcuate side wall 5174 and the inner top wall 5173. A mounting hole 512 that is connected to the conductive potting cavity 520 from top to bottom is provided in the boss portion 511.

[0123] The copper core wire 561 at one end of the wire is bent along the second side wall 572 and extends into the conductive potting cavity 520. Figure 6 It can be seen that the copper core wire 561 is located beside the bottom of the carbon fiber electrode 540, which can completely prevent the carbon fiber electrode 540 from contacting the copper core wire 561 when it is installed downward.

[0124] The conductive potting cavity 520 is connected to the mounting hole 512 up and down. During assembly, the conductive carbon paste 570 is first poured into the conductive potting cavity 520. At this time, the conductive carbon paste 570 completely fills the area directly below the mounting hole 512. Then the carbon fiber electrode 540 is inserted from top to bottom through the mounting hole 512. The bottom of the carbon fiber electrode 540 is just inserted into the conductive carbon paste 570. As the carbon fiber electrode 540 is continuously inserted, the carbon fiber electrode 540 squeezes the conductive carbon paste 570. The bottom side and the lower side of the carbon fiber electrode 540 are filled with the conductive carbon paste 570. The carbon fiber electrode 540 is in full contact with the conductive carbon paste 570, which improves the fixing reliability of the carbon fiber electrode 540 on the one hand, and improves the conductive performance on the other hand.

[0125] The mounting hole 512 plays an auxiliary positioning role in the installation of the carbon fiber electrode 540 .

[0126] In some embodiments of the present application, a support platform 515 is provided at the bottom of the curved side wall 5174 , the bottom end of the carbon fiber electrode 540 is against the support platform 515 , and a conductive carbon paste 570 is filled between the bottom end of the carbon fiber electrode 540 and the bottom wall of the conductive potting cavity 520 .

[0127] When the carbon fiber electrode 540 is installed downward, it is installed in place when it contacts the abutment platform 515. The bottom of the carbon fiber electrode 540 also has a gap filled with conductive carbon paste 570, which further improves the fixing reliability of the carbon fiber electrode 540 and improves the conductive performance.

[0128] In some embodiments of the present application, refer to Figures 5 to 7 A connecting groove 514 is provided on the arc-shaped side wall 5174, and the connecting groove 514 extends downward to the bottom wall of the conductive potting cavity 520. Abutment platforms 515 are respectively provided on the left and right sides of the connecting groove 514. When the conductive carbon paste 570 is poured into the conductive potting cavity 520, part of the conductive carbon paste 570 flows into the connecting groove 514 to contact the circumferential wall of the carbon fiber electrode 540.

[0129] Reference Fig.11 and Fig.12The solidified conductive carbon paste 570 includes three parts, which are respectively marked as conductive carbon paste part 1 571, conductive carbon paste part 2 572, and conductive carbon paste part 3 573. The conductive carbon paste part 1 571 is located at the bottom of the carbon fiber electrode 540 to fix the bottom end of the carbon fiber electrode 540. The conductive carbon paste part 2 572 is located on one side of the carbon fiber electrode 540. The conductive carbon paste part 3 573 is located on the other side of the carbon fiber electrode 540. The conductive carbon paste part 2 572 and the conductive carbon paste part 3 573 fix the surrounding side of the carbon fiber electrode 540 to prevent the carbon fiber electrode 540 from being tilted. In this way, the bottom and surrounding side of the carbon fiber electrode 540 are fully contacted with the conductive carbon paste 570. The conductive carbon paste part 3 573 is the part that fills into the connecting groove 514.

[0130] In some embodiments of the present application, refer to Figure 5 and Figure 8 A plurality of ventilation holes 513 arranged at intervals are provided on the inner wall of the mounting hole 512 , and external air flows into the ventilation holes 513 to fully contact with the carbon fiber electrode 540 .

[0131] The contact area between the carbon fiber electrode 540 and the air is increased by the plurality of ventilation holes 513 , thereby improving the water absorption of the carbon fiber electrode 540 .

[0132] In a specific embodiment, one of the ventilation holes 513 can be vertically connected to the connecting groove 514 to facilitate processing. In the illustrated structure, three ventilation holes 513 are provided.

[0133] In some embodiments of the present application, refer to Figure 4 and Figure 7 A connecting side wall 5175 is provided between the second side wall 5172 and the left side wall surrounding the first insulating potting cavity 531 , and the wire 560 extends along the connecting side wall 5175 to the conductive potting cavity 520 . A wiring groove 516 for limiting the wire 560 is provided at the bottom of the connecting side wall 5175 .

[0134] The wire 560 is arranged in the wiring groove 516 so that the wire 560 will not move when the conductive carbon paste 570 is solidified, ensuring that the copper core wire 561 at the end of the wire 560 is completely embedded in the conductive carbon paste 570 .

[0135] In some embodiments of the present application, the housing 510 includes a first housing 518 and a second housing 519. The structure of the first housing 518 is as shown in FIG. Figure 7 and Figure 8 The structure of the second housing 519 is shown in FIG. Fig. 9 and Fig.10 A conductive potting cavity 520 and an insulating potting cavity 530 are provided in the first shell 518 , and the top of the first shell 518 has an open area to expose the mounting hole 512 .

[0136] The second shell 519 is detachably connected to the first shell 518, and the second shell 519 includes a second shell vertical portion 5191 and a second shell transverse portion 5192 of an integral structure. The second shell vertical portion 5191 blocks the front openings of the first insulating potting cavity 531 and the second insulating potting cavity 532, and the second shell transverse portion 5192 blocks the top open area of ​​the first shell 518. The second shell transverse portion 5192 is provided with an ion release port 5193 that is opposite to the mounting hole 512, and the emission tip of the carbon fiber electrode 540 is exposed from the ion release port 5193.

[0137] An anti-collision chamfer is provided at the circumferential edge of the ion release port 5193 to prevent the carbon fiber electrode 540 from being bumped when inserted and causing burrs around the electrode.

[0138] The detachable connection structure between the first shell 518 and the second shell 519 is as follows: a plurality of openings 5181 arranged at intervals are provided on the side wall of the first shell 518 near the edge, and a corresponding buckle 5194 is provided on the second shell 519. The buckle 5194 is snapped into the opening 5181 to achieve a fixed connection between the first shell 518 and the second shell 519.

[0139] The second shell vertical portion 5191 constitutes the front side wall of the entire shell 510 , and the second shell transverse portion 5192 and the top wall of the first insulating potting cavity 531 together constitute the top wall of the entire shell 510 .

[0140] In some embodiments of the present application, epoxy resin and conductive graphite powder are uniformly mixed in a 1:1 mass ratio to prepare sample A, hardener and conductive graphite powder are uniformly mixed in a 1:1 ratio to prepare sample B, sample A and sample B are mixed in a 2:1 ratio, and appropriate amounts of dispersant and defoaming agent are added, and the mixture is fully stirred to prepare conductive carbon slurry 570.

[0141] The addition amount of epoxy resin and conductive graphite powder can be controlled between 1:0.9-1:1.1.

[0142] In order to improve the conductivity of the conductive carbon paste 570 , a certain proportion of precious metals, such as silver, platinum, gold, etc., may be added to the conductive carbon paste 570 .

[0143] The epoxy resin and the hardener are evenly mixed in a ratio of 2:1 to prepare an insulating glue for potting the insulating potting cavity.

[0144] [Wiring of air purification module]

[0145] Since the electrical box 230 is arranged on the air outlet side of the heat exchanger 210, and the air purification module 500 is arranged on the air outlet side of the heat exchanger 210, the wires connected between the air purification module 500 and the electrical box 230 need to pass through the connecting plate 300, and a wire threading hole needs to be set on the connecting plate 300 to facilitate wiring.

[0146] The wiring portion on the connecting plate 300 needs to be sealed to avoid air leakage and heat leakage, so as to ensure the heat exchange effect of the air conditioner.

[0147] In some embodiments of the present application, refer to Fig.13 The connecting plate 300 is provided with a threading hole (not shown), and a wiring sealing portion 400 is provided at the threading hole. The wiring sealing portion 400 and the threading hole are sealed. The structure of the wiring sealing portion 400 is shown in FIG. Figures 14 to 16 A wiring hole 410 is provided on the wiring sealing portion 400, and the wiring hole 410 connects the air inlet side and the air outlet side (specifically the duct area 120) of the heat exchanger 210. The wires led out from the electrical box 230 are led to the air purification module 500 through the duct area 120 and the wiring hole 410. The wires are inserted into the wiring hole 410 with interference fit to achieve sealing between the wires and the wiring hole.

[0148] Since the wiring sealing part 400 and the wire threading hole on the connecting plate 300 are sealed, and the wires and the wiring hole 410 are also sealed, the sealing between the air outlet side and the air inlet side of the heat exchanger 210 is completely achieved, avoiding air leakage and heat leakage at the wiring point, and ensuring the heat exchange effect of the air conditioner.

[0149] In some embodiments of the present application, the wiring sealing part 400 is a flexible plug made of a flexible material such as rubber and has a certain elasticity to allow deformation. The wiring sealing part 400 is interference fit in the threading hole on the connecting plate 300 to achieve a sealed fixed installation of the wiring sealing part 400 on the connecting plate 300.

[0150] The installation of the wiring sealing part 400 on the connecting plate 300 does not require other auxiliary fixing parts. The wiring sealing part 400 can be directly inserted into the threading hole on the connecting plate 300 through its own deformation. This facilitates assembly and reliable fixation while ensuring the sealing effect.

[0151] In some embodiments of the present application, a first annular protrusion 420 and a second annular protrusion 430 arranged at intervals are provided on the circumferential wall of the wiring sealing portion 400, the first annular protrusion 420 is arranged close to one end of the wiring sealing portion 400, and the second annular protrusion 430 is arranged close to the other end of the wiring sealing portion 400, and an annular groove 440 is provided between the first annular protrusion 420 and the second annular protrusion 430, and the circumferential wall surrounding the threading hole is located in the annular groove 440, that is, the bottom wall of the annular groove 440 is interference fit with the threading hole, so as to realize the sealing and fixation of the wiring sealing portion 400 on the connecting plate 30, and the first annular protrusion 420 and the second annular protrusion 430 play a limiting role to prevent the wiring sealing portion 400 from falling off.

[0152] The first annular protrusion 420 is provided with a first inclined surface 421 on the side away from the annular groove 440, and the second annular protrusion 430 is provided with a second inclined surface 4310 on the side away from the annular groove 440. When the wiring sealing part 400 is inserted into the threading hole, the inclined surface structure plays a guiding role to facilitate installation.

[0153] In some embodiments of the present application, the outer diameter of the first annular protrusion 420 is larger than the outer diameter of the second annular protrusion 430, and the wiring sealing part 400 is inserted into the threading hole through the second annular protrusion 430. The second annular protrusion 430 with a smaller outer diameter facilitates the insertion and installation of the wiring sealing part 400.

[0154] When installing the wiring sealing part 400, insert the wiring sealing part 400 into the threading hole from one side of the second annular protrusion 430, and then continue to push the wiring sealing part 400 so that the connecting plate 300 is in contact with the first annular protrusion 420 and pushed into place.

[0155] The first annular protrusion 420 limits the wiring sealing part 400. Since the annular groove 440 is fitted with the threading hole in an interference fit manner, after the wiring sealing part 400 is installed in place, the wiring sealing part 400 is fixed in place in the threading hole and is unlikely to move.

[0156] In some embodiments of the present application, a slit 450 communicating with the wiring hole 410 is provided on the wiring sealing portion 400, and the wires are inserted into the wiring hole 410 through the slit 450, which facilitates the installation of the wires into the wiring sealing portion 400. After the wires are inserted, an interference seal is automatically achieved between the wires and the wiring hole 410.

[0157] When the product is assembled, the wires are first inserted into the wire routing hole 410 through the slits 450, and then the wire routing sealing portion 400 through which the wires are passed is inserted into the wire threading hole.

[0158] [Installation of air purification module on the connecting plate]

[0159] In some embodiments of the present application, refer to Figure 1After the air purification module 500 is installed on the connecting plate 300 , the emitting tip of the emitting electrode extends downward from the bottom side of the shell 510 , and the carbon fiber electrode 540 is located above the water receiving tray 240 , with the emitting tip pointing to the water receiving tray 240 .

[0160] When the indoor unit is cooling, if condensation occurs in the air purification module 500, the condensation water can drip into the water receiving tray 240. Moreover, if the carbon fiber electrode 540 absorbs too much water, the water can also drip into the water receiving tray 240, thereby preventing water droplets from leaking out and preventing the indoor unit from dripping.

[0161] There is enough distance between the emission tip and the connection plate 300 and the upper and lower sides of the air outlet 130, so that the carbon fiber electrode 540 can fully contact the air to absorb moisture in the air, and the nano water ions generated by the carbon fiber electrode 540 can be blown into the room as much as possible, reducing the decomposition problem during the transmission process due to the instability of hydroxyl radicals. Further, in the up and down direction of the air outlet 130, the carbon fiber electrode 540 is located in the middle of the air outlet 130.

[0162] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0163] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An air purification module, characterized in that: include: A shell, wherein a conductive potting cavity and an insulating potting cavity are provided therein, wherein the conductive potting cavity is potted with conductive carbon paste, and the insulating potting cavity is potted with insulating glue; A carbon fiber electrode, the bottom of which is inserted into the conductive potting cavity, the top emitting tip of the carbon fiber electrode extends from the shell to release negatively charged nano water ions into the air, and the carbon fiber electrode absorbs moisture from the air; A negative high voltage part is arranged in the insulating potting cavity and is used to provide negative high voltage to the carbon fiber electrode. The wire led out from the negative high voltage part extends from the insulating potting cavity to the conductive potting cavity to realize contactless electrical connection between the carbon fiber electrode and the wire.

2. The air purification module according to claim 1, characterized in that: The insulating potting cavity comprises a first insulating potting cavity and a second insulating potting cavity which are connected to each other, the first insulating potting cavity and the conductive potting cavity are arranged on the left and right, the front opening of the first insulating potting cavity is used as a potting port for insulating glue, the front opening of the conductive potting cavity is used as a potting port for conductive carbon paste, and the second insulating potting cavity is located at the front opening of the conductive potting cavity to block the front opening of the conductive potting cavity; The negative high voltage part is arranged in the first insulating potting cavity, and the wire led out from the negative high voltage part extends into the conductive potting cavity through the first insulating potting cavity and the second insulating potting cavity, and the part of the wire extending into the conductive potting cavity is a bare copper core wire; A mounting hole is provided on the top of the conductive potting cavity, and the carbon fiber electrode is inserted into the conductive potting cavity from top to bottom through the mounting hole to contact with the conductive carbon paste.

3. The air purification module according to claim 2, characterized in that: The conductive potting cavity is surrounded by a first side wall, a second side wall, an inner top wall, and an arc-shaped side wall, the first side wall and the second side wall are arranged opposite to each other, the arc-shaped side wall is connected to the rear side of the first side wall and the second side wall, the inner top wall is connected to the top of the first side wall and the second side wall, a boss portion extends upward from the arc-shaped side wall and the inner top wall, and the boss portion is provided with the mounting hole connected to the conductive potting cavity from top to bottom; The copper core wire at one end of the conductive wire extends into the conductive potting cavity along the second side wall.

4. The air purification module according to claim 3, characterized in that: A supporting platform is provided at the bottom of the arc-shaped side wall, the bottom end of the carbon fiber electrode is against the supporting platform, and conductive carbon slurry is filled between the bottom end of the carbon fiber electrode and the bottom wall of the conductive potting cavity.

5. The air purification module according to claim 4, characterized in that: A connecting groove is provided on the arc-shaped side wall, and the connecting groove extends downward to the bottom wall of the conductive potting cavity. The abutment platforms are respectively provided on the left and right sides of the connecting groove. When conductive carbon slurry is poured into the conductive potting cavity, part of the conductive carbon slurry flows into the connecting groove to contact the circumferential wall of the carbon fiber electrode.

6. The air purification module according to claim 3, characterized in that: A plurality of ventilation holes arranged at intervals are provided on the inner wall of the mounting hole, and external air flows into the ventilation holes to fully contact the carbon fiber electrode.

7. The air purification module according to claim 3, characterized in that: A connecting side wall is provided between the second side wall and the left side wall surrounding the first insulating potting cavity, the wire extends along the connecting side wall to the conductive potting cavity, and a wiring groove for limiting the wire is provided at the bottom of the connecting side wall.

8. The air purification module according to any one of claims 2 to 7, characterized in that: The housing comprises a first housing and a second housing, the conductive potting cavity and the insulating potting cavity are provided in the first housing, and the top of the first housing has an open area to expose the mounting hole; The second shell is detachably connected to the first shell, and the second shell includes a second shell vertical portion and a second shell transverse portion, the second shell vertical portion blocks the front openings of the first insulating potting cavity and the second insulating potting cavity, the second shell transverse portion blocks the top open area of ​​the first shell, and the second shell transverse portion is provided with an ion release port that is opposite to the mounting hole, and the emission tip of the carbon fiber electrode is exposed from the ion release port.

9. The air purification module according to any one of claims 2 to 7, characterized in that: During production, the negative high voltage part is firstly arranged in the first insulating potting cavity, and the copper core wire at one end of the wire is extended into the conductive potting cavity; Then, conductive carbon slurry is poured into the conductive potting cavity from the front opening of the conductive potting cavity; Then, the carbon fiber electrode is inserted into the conductive carbon paste through the mounting hole, the carbon fiber electrode is rotated to fully contact with the conductive carbon paste, and the carbon fiber electrode is separated from the copper core wire of the conductor; After the conductive carbon paste is statically solidified, insulating glue is poured into the insulating potting cavity from the front opening of the insulating potting cavity, and the insulating glue is statically solidified.

10. An air conditioner, characterized in that: The invention comprises an air purification module as claimed in any one of claims 1 to 9.

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