Ion purification device for dishwasher

Abstract

The ion purification device for a dishwasher according to the present invention, the dishwasher includes a main body, and the ion purification device is arranged inside the main body and includes a blower, a bracket and a bipolar ion generator. The inside of the bracket is hollow. One end of the bracket is communicated with the air outlet of the blower, and the other end is communicated with the drying duct of the drying component. The bipolar ion generator includes an ion sheet, a plug and a power converter. The ion sheet is installed inside the bracket and is used for generating an ion group with opposite charges. One end of the plug is electrically connected to the ion sheet in a pluggable manner, and the other end is electrically connected to the power converter. The power converter is used for converting power for the ion sheet. The ion purification device for a dishwasher according to the present invention, by installing the ion sheet inside the bracket between the blower and the drying duct, the purification ion group generated by the ion sheet can enter the accommodation cavity inside the dishwasher together with the hot air flow of the drying component, so that the dishwasher can perform hot air drying and sterilization while drying and storing.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning equipment, and particularly to an ion purification device for a dishwasher. Background Art

[0002] A dishwasher is a device for automatically cleaning tableware such as bowls, chopsticks, plates, dishes, knives, forks, etc. At present, dishwashers on the market can be divided into two categories: household and commercial. Dishwashers can reduce the labor intensity of personnel and improve work efficiency. However, dishwashers are more focused on removing oil stains on the surface of tableware, and their ability to kill germs needs to be improved. Summary of the Invention

[0003] Based on this, in view of the problem of poor sterilization ability of traditional dishwashers, it is necessary to provide an ion purification device for a dishwasher.

[0004] The ion purification device for a dishwasher of the present invention, the dishwasher includes a main body, and a drying component is arranged inside the main body, and the drying component is used for drying the cleaned tableware; the ion purification device is arranged inside the main body and includes a blower, a bracket and a bipolar ion generator. The inside of the bracket is hollow. One end of the bracket is communicated with the air outlet of the blower, and the other end is communicated with the drying pipeline of the drying component; the bipolar ion generator includes an ion sheet, a plug and a power converter. The ion sheet is installed inside the bracket. The ion sheet includes an emission electrode plate, a grounding electrode plate and a dielectric barrier plate. The dielectric barrier plate is located between the emission electrode plate and the grounding electrode plate; one end of the plug is electrically connected to the ion sheet in a pluggable manner, and the other end is electrically connected to the power converter; the power converter is used for converting power for the ion sheet. The emission electrode plate is connected to an alternating high voltage through the power converter, and the grounding electrode plate is connected to a ground wire through the power converter.

[0005] In one embodiment, the ion sheet further includes a first electrical connector and a second electrical connector, and the plug includes a first plug and a second plug; one end of the first electrical connector is electrically connected to the emission electrode plate, and the other end is electrically connected to one end of the first plug in a pluggable manner. The other end of the first plug is connected to an alternating high voltage through the power converter; one end of the second electrical connector is electrically connected to the grounding electrode plate, and the other end is electrically connected to one end of the second plug in a pluggable manner. The other end of the second plug is connected to a ground wire through the power converter.

[0006] In one embodiment, the bracket includes an upper cover and a base, and the upper cover and the base are used for clamping and fixing the ion sheet inside the bracket; the bracket includes two clamping ends, which are respectively used for clamping and fixing the opposite ends of the ion sheet.

[0007] In one embodiment, openings are provided at both of the clamping ends, and sealed connections are made between the inner walls of the two clamping ends and the outer walls of the two end heads of the ion sheet; the first electrical connector and the second electrical connector are disposed at opposite ends of the ion sheet, and the first plug and the second plug are respectively connected to a power converter through the openings of the two clamping ends.

[0008] In one embodiment, one of the clamping ends has an opening, and a sealed connection is made between the inner wall of the clamping end with the opening and the outer wall of the end head of the ion sheet; the first electrical connector and the second electrical connector are disposed at the same end of the ion sheet, and both the first plug and the second plug are connected to a power converter through the opening of the clamping end.

[0009] In one embodiment, the bipolar ion generator further includes a housing made of an insulating material, the housing is disposed outside the ion sheet, and the housing is used to fix the ion sheet.

[0010] In one embodiment, the ion sheet sequentially includes a first grounding electrode plate, a first dielectric barrier plate, a first emission electrode plate, a second dielectric barrier plate, a second emission electrode plate, a third dielectric barrier plate, and a second grounding electrode plate from one side to the other side. The dimensions of the first dielectric barrier plate and the third dielectric barrier plate in the width direction are smaller than those of the second dielectric barrier plate. The housing is clamped on the second dielectric barrier plate, such that the surface of the housing is flush with the surface of the ion sheet, or such that the surface of the housing is recessed from the surface of the ion sheet.

[0011] In one embodiment, opposite ends of the housing are respectively clamped on opposite ends of the ion sheet, and there is a gap between at least one side edge of the ion sheet and the side edge of the housing.

[0012] In one embodiment, the ion sheet sequentially includes a first grounding electrode plate, a first dielectric barrier plate, a first emission electrode plate, a second dielectric barrier plate, and a second grounding electrode plate from one side to the other side.

[0013] In one embodiment, both the first electrical connector and the second electrical connector are disposed inside the housing. First connection holes and second connection holes are formed at the end heads of the housing. The first plug is electrically connected to the ion sheet in a pluggable manner through the first connection hole; the second plug is electrically connected to the ion sheet in a pluggable manner through the second connection hole.

[0014] The ion purification device for a dishwasher according to the present invention has the following beneficial effects:

[0015] The ion purification device for a dishwasher according to the present invention installs the ion sheet of the bipolar ion generator in the bracket between the fan and the drying duct. When it is necessary to sterilize the tableware, the fan and the bipolar ion generator are started. The airflow generated by the fan enters the bracket, carries the purification ion group generated by the ion sheet into the drying duct, and enters the inner accommodation cavity of the dishwasher together with the hot airflow of the drying component, combining the hot air drying and sterilization functions of the dishwasher, performing hot air drying and sterilization while drying and storing, thereby ensuring the cleanliness and hygiene of the tableware and preventing the growth of bacteria and odor. In addition, for the bipolar ion generator in the ion purification device for a dishwasher according to the present invention, the plug is electrically connected to the ion sheet in a pluggable manner, facilitating the installation, maintenance, and replacement of the ion sheet. When the ion sheet fails, only the plug needs to be unplugged and the ion sheet replaced, without the need to replace the power converter and other circuit structures or electronic components in the dishwasher. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of a dishwasher provided by an embodiment of the present invention.

[0017] Figure 2 It is an exploded structural diagram of a dishwasher provided by an embodiment of the present invention.

[0018] Figure 3 It is a schematic structural diagram of an ion sheet provided by an embodiment of the present invention.

[0019] Figure 4 It is a schematic structural diagram after the plug of the bipolar ion generator is connected to the ion sheet provided by an embodiment of the present invention.

[0020] Figure 5 It is a schematic structural diagram after the plug of the bipolar ion generator is unplugged from the ion sheet provided by an embodiment of the present invention.

[0021] Figure 6 It is a schematic structural diagram of a first electrical connector provided by an embodiment of the present invention.

[0022] Figure 7 It is a schematic structural diagram of a second electrical connector provided by an embodiment of the present invention.

[0023] Figure 8 It is a schematic structural diagram of an ion sheet provided by another embodiment of the present invention.

[0024] Figure 9 It is a schematic structural diagram after the plug of the bipolar ion generator is connected to the ion sheet provided by another embodiment of the present invention.

[0025] Figure 10Schematic structural diagram of the plug of the bipolar ion generator provided by another embodiment of the present invention after being unplugged from the ion sheet.

[0026] Figure 11 Schematic structural diagram of the ion sheet provided by another embodiment of the present invention.

[0027] Figure 12 Exploded structural diagram of the bipolar ion generator provided by another embodiment of the present invention.

[0028] Figure 13 Cross-sectional view of the lateral section of the ion sheet provided by another embodiment of the present invention.

[0029] Figure 14 Schematic structural diagram of the ion sheet provided by another embodiment of the present invention.

[0030] Figure 15 Exploded structural diagram of the bipolar ion generator provided by another embodiment of the present invention.

[0031] Figure 16 Schematic structural diagram of the bipolar ion generator provided by another embodiment of the present invention after the plug is connected to the ion sheet.

[0032] Figure 17 Schematic structural diagram of the plug of the bipolar ion generator provided by another embodiment of the present invention after being unplugged from the ion sheet.

[0033] Figure 18 Cross-sectional view of the lateral section of the ion sheet provided by another embodiment of the present invention.

[0034] Reference numerals:

[0035] Fan 100, drying duct 200, bracket 300, upper cover 310, base 320, clamping end 330, opening 331, bipolar ion generator 400, ion sheet 410, first grounding electrode plate 411, first dielectric barrier plate 412, first emission electrode plate 413, second dielectric barrier plate 414, second emission electrode plate 415, third dielectric barrier plate 416, second grounding electrode plate 417, first lead-out end 418, second lead-out end 419, housing 420, upper housing 421, lower housing 422, hollowed-out area 423, first connection hole 424, second connection hole 425, first electrical connector 431, first port 433, first elastic sheet 434, third elastic sheet 435, second electrical connector 432, second port 436, second elastic sheet 437, fourth elastic sheet 438; plug 440, first plug 441, second plug 442; power converter 450, step 460, gap 470. Detailed embodiments

[0036] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following describes the specific embodiments of the present invention in detail with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present invention 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. Therefore, it should not be construed as a limitation to the present invention.

[0038] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0039] In the present invention, unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; 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 internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "beneath", "under", and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0041] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0042] In one embodiment, the present invention provides an ion purification device for a dishwasher. The dishwasher includes a main body. A drying component is provided in the main body. The drying component includes a drying duct 200. The drying duct 200 is communicated with a receiving cavity for accommodating tableware. The drying component can generate a hot air flow. The hot air flow reaches the receiving cavity of the dishwasher through the drying duct 200 for drying the cleaned tableware. The ion purification device is provided in the main body and includes a fan 100, a bracket 300, and a bipolar ion generator 400. Among them, the structures of the fan 100, the bracket 300, the bipolar ion generator 400, and the drying duct 200 are as Figure 1 shown. It should be noted that in the Figure 1 and Figure 2 illustrated embodiments, only the drying duct 200 of the drying component is schematically shown, while other components of the drying component and other components in the dishwasher are hidden.

[0043] In addition, as Figure 1 and Figure 2 shown, the inside of the bracket 300 is hollow. One end of the bracket 300 is communicated with the air outlet of the fan 100, and the other end is communicated with the drying duct 200. The bipolar ion generator 400 includes an ion sheet 410, a plug 440, and a power converter 450. The ion sheet 410 is installed in the bracket 300 for generating an ion group with opposite charges. One end of the plug 440 is detachably electrically connected to the ion sheet 410, and the other end is electrically connected to the power converter 450. The power converter 450 is used to convert power for the ion sheet 410. When it is necessary to sterilize the tableware, the fan 100 and the bipolar ion generator 400 are started. The air flow generated by the fan 100 enters the bracket 300, carries the purification ion group generated by the ion sheet 410 into the drying duct 200, and enters the receiving cavity inside the dishwasher together with the hot air flow of the drying component, so that the hot air drying and sterilization functions of the dishwasher are combined, and hot air drying and sterilization are carried out while drying and storing, thereby ensuring the cleanliness and hygiene of the tableware and avoiding the growth of bacteria and odor.

[0044] It can be understood that in one embodiment, when the space inside the dishwasher is small, the blower 100 can be inherent in the dishwasher, that is, the bipolar ion generator 400 and the drying component share the same blower 100. When the blower 100 operates, it can carry the purification ion group generated by the ion sheet 410 and the hot air flow generated by the drying component into the drying duct 200 together. In another embodiment, when the space inside the dishwasher is large, a blower 100 can also be separately configured for the bipolar ion generator 400, that is, the bipolar ion generator 400 is driven by an independent blower 100, so as to increase the gas flow rate in the drying duct 200 of the dishwasher, accelerate the air flow in the accommodation cavity of the dishwasher, make the gas flow in the dishwasher more intense and uniform, and improve the drying and purification efficiency; the purification ions flow with the air flow, and there will also be a better purification effect on the slits and positions that are not easy to clean.

[0045] In one embodiment, the structure of the ion sheet 410 is as Figure 3 shown, and the structure after the plug 440 is connected to the ion sheet 410 is as Figure 4 shown, and the structure after the plug 440 is unplugged from the ion sheet 410 is as Figure 5 shown. As Figure 4 and Figure 5 shown, the plug 440 includes a first plug 441 and a second plug 442, and the first plug 441 and the second plug 442 are respectively pluggably connected to opposite ends of the ion sheet 410. In addition, as Figure 6 and Figure 7 shown, the ion sheet 410 further includes a first electrical connector 431 and a second electrical connector 432. As can be seen from Figure 3 , the ion sheet 410 is in a layered rectangular shape. The ion sheet 410 sequentially includes a first grounding electrode plate 411, a first dielectric barrier plate 412, a first emission electrode plate 413, a second dielectric barrier plate 414, a second emission electrode plate 415, a third dielectric barrier plate 416, and a second grounding electrode plate 417 from one side to the other side. The first emission electrode plate 413 and the second emission electrode plate 415 form a first lead-out end 418 at one end of the ion sheet 410. One end of the first electrical connector 431 is electrically connected to the first lead-out end 418, and the other end is pluggably electrically connected to the first plug 441. The other end of the first plug 441 is connected to an AC high voltage through a power converter 450. The first grounding electrode plate 411 and the second grounding electrode plate 417 form a second lead-out end 419 at the other end of the ion sheet 410. One end of the second electrical connector 432 is electrically connected to the second lead-out end 419, and the other end is pluggably electrically connected to the second plug 442. The other end of the second plug 442 is grounded through a power converter 450.

[0046] In a specific embodiment, one end of the first electrical connector 431 is welded to the first lead-out end 418 by high-frequency welding to achieve a stable and firm electrical connection, and the other end is used for pluggable electrical connection with the first plug 441; one end of the second electrical connector 432 is welded to the second lead-out end 419 by high-frequency welding to achieve a stable and firm electrical connection, and the other end is used for pluggable electrical connection with the second plug 442. As Figure 6 and Figure 7 shown, a first port 433 is provided on the first electrical connector 431 for pluggable connection with the first plug 441, and a second port 436 is provided on the second electrical connector 432 for pluggable connection with the second plug 442. Additionally, to prevent misinsertion, the first port 433 is cylindrical, and the second port 436 is flat, such that the first plug 441 can only be inserted into the first port 433, and the second plug 442 can only be inserted into the second port 436. Further, a second elastic piece 437 is provided on the side wall of the second port 436. One end of the second elastic piece 437 is connected to the side wall of the second port 436, and the other end inclines or bends towards the inside of the second port 436. When the second plug 442 is inserted into the second port 436, the second elastic piece 437 can press against the second plug 442, enabling the second plug 442 to be in close contact with the second electrical connector 432 to achieve a stable electrical connection.

[0047] In addition, in an embodiment, as Figure 6 shown, to further increase the close contact force between the first plug 441 and the first electrical connector 431, a third elastic piece 435 is further provided on the side wall of the first port 433. One end of the third elastic piece 435 is connected to the side wall of the first port 433, and the other end inclines or bends towards the inside of the first port 433. A first elastic piece 434 is provided on the third elastic piece 435. When the first plug 441 is inserted into the first port 433, the first elastic piece 434 and the third elastic piece 435 act synergistically to press against the first plug 441, enabling the first plug 441 to be in closer contact with the first electrical connector 431 to achieve a more stable electrical connection. Similarly, to further increase the close contact force between the second plug 442 and the second port 436, as Figure 7 shown, a fourth elastic piece 438 is further provided on the side wall of the second port 436. One end of the fourth elastic piece 438 is connected to the side wall of the second port 436, and the other end inclines or bends towards the inside of the second port 436. The second elastic piece 437 is provided on the fourth elastic piece 438. When the second plug 442 is inserted into the second port 436, the second elastic piece 437 and the fourth elastic piece 438 act synergistically to press against the second plug 442, enabling the second plug 442 to be in closer contact with the second electrical connector 432 to achieve a more stable electrical connection.

[0048] From Figure 2 、 Figure 4 and Figure 5 As can be seen, the bipolar ion generator 400 further includes a housing 420 made of insulating material. The housing 420 is disposed outside the ion sheet 410 for fixing the ion sheet 410. Hollow areas 423 are provided on both sides of the ion sheet 410 on the housing 420 to facilitate the outflow of the positive and negative ion groups with opposite charges.

[0049] As Figure 3 shown, the first emission electrode plate 413 and the first grounding electrode plate 411 form a first electric field, and the second emission electrode plate 415 and the second grounding electrode plate 417 form a second electric field. The directions of the first electric field and the second electric field are opposite. Thus, for the double-sided ion sheet 410 with a symmetric structure, the number of electrons escaping per unit time is increased, the ion airflow is enhanced, and the air purification speed is accelerated. It can be understood that in other embodiments, the ion sheet 410 may also only include the first emission electrode plate 413, the first grounding electrode plate 411, and the first dielectric barrier plate 412. The first dielectric barrier plate 412 is located between the first emission electrode plate 413 and the first grounding electrode plate 411. A first electric field is formed between the first emission electrode plate 413 and the first grounding electrode plate 411, and electrons are led out from one end of the first emission electrode plate 413 through the middle first dielectric barrier plate 412 to the first grounding electrode plate 411.

[0050] As Figure 1 and Figure 2 shown, the bracket 300 includes an upper cover 310 and a base 320. The upper cover 310 and the base 320 are used to clamp and fix the ion sheet 410 within the bracket 300; the bracket 300 includes two clamping ends 330, which are respectively used to clamp and fix the opposite ends of the ion sheet 410. Openings 331 are provided on both clamping ends 330. Sealed connections are made between the inner walls of the two clamping ends 330 and the outer housing 420 at both ends of the ion sheet 410 to prevent the purification ions generated by the ion sheet 410 from flowing out through the openings 331 of the clamping ends 330; one end of the first plug 441 is electrically connected to the ion sheet 410 in a pluggable manner, and the other end is connected to the power converter 450 through the opening 331 of one clamping end 330. One end of the second plug 442 is electrically connected to the ion sheet 410 in a pluggable manner, and the other end is connected to the power converter 450 through the opening 331 of the other clamping end 330.

[0051] In another embodiment, the structure of the ion sheet 410 is as Figure 8 shown, and the structure after the plug 440 is connected to the ion sheet 410 is as Figure 9 shown, and the structure after the plug 440 is unplugged from the ion sheet 410 is as Figure 10As shown, the first lead-out terminal 418 and the second lead-out terminal 419 are formed at the same end of the ion sheet 410. One end of the first electrical connector 431 is electrically connected to the first lead-out terminal 418, and the other end is electrically connected to the first plug 441 in a pluggable manner. One end of the second electrical connector 432 is electrically connected to the second lead-out terminal 419, and the other end is electrically connected to the second plug 442 in a pluggable manner, so that the first plug 441 and the second plug 442 can be pluggably connected to the same end of the ion sheet 410. It can be understood that when the structure of the bipolar ion generator 400 is as Figures 8 - 10 shown, an opening 331 can be provided only at one clamping end 330 of the bracket 300, and a sealed connection is formed between the inner wall of the clamping end 330 provided with the opening 331 and the outer wall of the end of the ion sheet 410; both the first plug 441 and the second plug 442 are connected to the power converter 450 through the opening 331 of the clamping end 330.

[0052] In another embodiment, the structure of the ion sheet 410 is as Figures 11 - 13 shown, where Figure 11 is a schematic structural diagram of the ion sheet 410, Figure 12 is an exploded structural diagram of the ion sheet 410, the housing 420, the first plug 441 and the second plug 442, Figure 13 is a cross-sectional view of the ion sheet 410 in the transverse direction. The ion sheet 410 sequentially includes a first grounding electrode plate 411, a first dielectric barrier plate 412, a first emission electrode plate 413, a second dielectric barrier plate 414, a second emission electrode plate 415, a third dielectric barrier plate 416 and a second grounding electrode plate 417 from one side to the other side. The dimensions of the first dielectric barrier plate 412 and the third dielectric barrier plate 416 in the width direction are smaller than those of the second dielectric barrier plate 414, so that steps 460 are formed between the first dielectric barrier plate 412 and the second dielectric barrier plate 414, and between the third dielectric barrier plate 416 and the second dielectric barrier plate 414. The housing 420 includes an upper housing 421 and a lower housing 422. Hollow areas 423 are provided on both the upper and lower sides of the ion sheet 410 on the upper housing 421 and the lower housing 422 to facilitate the outflow of the positive and negative ion groups with opposite charges. The upper housing 421 and the lower housing 422 are clamped on the steps 460 on both the upper and lower sides of the third dielectric barrier plate 416, so that the surface of the housing 420 is flush with the surface of the ion sheet 410, or the surface of the housing 420 is recessed from the surface of the ion sheet 410, so as to more conveniently allow the positive and negative ion groups with opposite charges to flow out from the hollow areas 423.

[0053] In yet another embodiment, the structure of the ion sheet 410 is as Figures 14 to 18 shown, where Figure 14 is a schematic structural diagram of the ion sheet 410, Figure 15 is an exploded structural diagram of the ion sheet 410 and the housing 420, Figure 16Schematic diagram of the structure after the plug 440 is connected to the ion sheet 410, Figure 17 Schematic diagram of the structure after the plug 440 is unplugged from the ion sheet 410, Figure 18 Cross-sectional view of the ion sheet 410 in the transverse direction. The ion sheet 410 sequentially includes a first grounding electrode plate 411, a first dielectric barrier plate 412, a first emission electrode plate 413, a second dielectric barrier plate 414, and a second grounding electrode plate 417 from one side to the other side. The first emission electrode plate 413 forms a first lead-out end 418 at one end of the ion sheet 410. One end of the first electrical connector 431 is electrically connected to the first lead-out end 418, and the other end is electrically connected to the first plug 441 in a pluggable manner. The other end of the first plug 441 is connected to an AC high voltage through a power converter 450. The first grounding electrode plate 411 and the second grounding electrode plate 417 form a second lead-out end 419 at the same end of the ion sheet 410. One end of the second electrical connector 432 is electrically connected to the second lead-out end 419, and the other end is electrically connected to the second plug 442 in a pluggable manner. The other end of the second plug 442 is grounded through a power converter 450.

[0054] As Figure 14 shown, one side of the first emission electrode plate 413 forms a first electric field with the first grounding electrode plate 411, and the other side forms a second electric field with the second grounding electrode plate 417. Thus, the double-sided ion sheet 410 with a symmetric structure increases the number of electrons escaping per unit time, enhances the ion airflow, and speeds up the air purification speed. Additionally, as Figures 15 - 17 shown, the opposite ends of the housing 420 are respectively clamped between the opposite ends of the ion sheet 410, and there are gaps 470 between the two side edges of the ion sheet 410 and the two side edges of the housing 420. Such a design can prevent the side edges of the ion sheet 410 from being restricted by the housing 420, making it more convenient for the heteropolar ion groups with positive and negative charges to flow out from the hollow area 423, and increasing the efficiency of the ion group outflow.

[0055] Additionally, as Figures 15 to 17 shown, both the first electrical connector 431 and the second electrical connector 432 are arranged inside the housing 420. First connection holes 424 and second connection holes 425 are opened at the ends of the housing 420. The first plug 441 is electrically connected to the ion sheet 410 in a pluggable manner through the first connection hole 424; the second plug 442 is electrically connected to the ion sheet 410 in a pluggable manner through the second connection hole 425. Compared with the embodiments shown in Figure 4 、 Figure 5 and Figure 9 、 Figure 10 shown, in Figure 16 and Figure 17In the illustrated embodiment, the outer walls of the first connection hole 424 and the second connection hole 425 do not protrude from the ends of the housing 420, thereby reducing the length of the housing 420, and further reducing the length of the ion sheet 410, facilitating the installation of the ion sheet 410 in a narrow space.

[0056] In addition, as Figure 4 , Figure 5 , Figure 9 , Figure 10 shown, the cross-section of the first connection hole 424 is circular, and correspondingly, the insertion end of the first plug 441 is also circular. The cross-section of the second connection hole 425 is oval, and correspondingly, the insertion end of the second plug 442 is also oval, so that the first plug 441 can only be inserted into the first connection hole 424, and the second plug 442 can only be inserted into the second connection hole 425, preventing misinsertion. In the embodiments shown in Figure 16 and Figure 17 , the cross-section of the first connection hole 424 is oval, and correspondingly, the insertion end of the first plug 441 is also oval. The cross-section of the second connection hole 425 is circular, and correspondingly, the insertion end of the second plug 442 is also circular, so that the first plug 441 can only be inserted into the first connection hole 424, and the second plug 442 can only be inserted into the second connection hole 425, preventing misinsertion.

[0057] In addition, the bipolar ion generator 400 in the ion purification device for a dishwasher according to the present invention forms an electric field with precise dimensions after the emission electrode plate and the ground electrode plate are connected to a current. Using alternating current, electrons emitted from the emission electrode plate are led out through the dielectric barrier on the grounded side of the electric field to generate gas ions of opposite signs, which can effectively sterilize the tableware in the dishwasher. Under the air flow conditions of traditional single-stage ions, the particulate matter can be charged, and the bacteria attached to it will also be charged. However, simply changing the potential of the bacteria itself will not kill the bacteria, just like a bird landing on a high-voltage wire will not be electrocuted to death, because no current is formed on the bird. The gas ions of opposite signs generated by the bipolar ionizer of the present invention form a microcurrent that can penetrate the cell wall of the bacteria, thereby killing the bacteria. It should be noted that the microcurrent formed here is less than 1 mA and is safe for the human body.

[0058] The ion purification device for a dishwasher according to the present invention installs the ion sheet 410 in the bracket 300 between the blower 100 and the drying duct 200. When it is necessary to sterilize the tableware, the blower 100 and the bipolar ion generator 400 are started. The air flow generated by the blower 100 enters the bracket 300, carries the purification ion group generated by the ion sheet 410 into the drying duct 200, and enters the inner accommodation cavity of the dishwasher together with the hot air flow of the drying component, combining the hot air drying and sterilization functions of the dishwasher, performing hot air drying and sterilization while drying and storing, thereby ensuring the cleanliness and hygiene of the tableware and preventing the growth of bacteria and odor. In addition, for the bipolar ion generator 400 in the ion purification device for a dishwasher according to the present invention, the plug 440 is detachably electrically connected to the ion sheet 410, facilitating the installation, maintenance, and replacement of the ion sheet 410. When the ion sheet 410 fails, only the plug 440 needs to be unplugged and the ion sheet 410 replaced, without the need to replace the power converter 450 and other circuit structures or electronic components in the dishwasher.

[0059] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as falling within the scope described in this specification.

[0060] The above-described embodiments merely represent several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the invention patent should be subject to the appended claims.

Claims

1. An ion purification device for a dishwasher, characterized in that, The dishwasher includes a main body, and a drying component is arranged inside the main body. The drying component is used to dry the tableware after cleaning; the ion purification device is arranged inside the main body and includes: A blower; A bracket, the interior of which is hollow. One end of the bracket is communicated with the air outlet of the blower, and the other end is communicated with the drying pipeline of the drying component; and A bipolar ion generator, including an ion sheet, a plug and a power converter. The ion sheet is installed inside the bracket. The ion sheet includes an emission electrode plate, a grounding electrode plate and a dielectric barrier plate. The dielectric barrier plate is located between the emission electrode plate and the grounding electrode plate; one end of the plug is electrically connected to the ion sheet in a pluggable manner, and the other end is electrically connected to the power converter; the power converter is used to convert electricity for the ion sheet. The emission electrode plate is connected to an AC high voltage through the power converter, and the grounding electrode plate is connected to the ground wire through the power converter; The bracket includes an upper cover and a base, and the upper cover and the base are used to clamp and fix the ion sheet inside the bracket; the bracket includes two clamping ends, which are respectively used to clamp and fix the opposite ends of the ion sheet; Both of the two clamping ends are provided with openings, and there is a sealed connection between the inner walls of the two clamping ends and the outer walls of the two ends of the ion sheet.

2. The ion purification device for a dishwasher according to claim 1, characterized in that, The ion sheet further includes a first electrical connector and a second electrical connector, and the plug includes a first plug and a second plug; one end of the first electrical connector is electrically connected to the emission electrode plate, and the other end is electrically connected to one end of the first plug in a pluggable manner. The other end of the first plug is connected to an AC high voltage through the power converter; one end of the second electrical connector is electrically connected to the grounding electrode plate, and the other end is electrically connected to one end of the second plug in a pluggable manner. The other end of the second plug is connected to the ground wire through the power converter.

3. The ion purification device for a dishwasher according to claim 2, characterized in that, One of the clamping ends has an opening, and there is a sealed connection between the inner wall of the clamping end with the opening and the outer wall of the end of the ion sheet; the first electrical connector and the second electrical connector are arranged at the same end of the ion sheet, and the first plug and the second plug are both connected to the power converter through the opening of the clamping end.

4. The ion purification device for a dishwasher according to claim 2, characterized in that, The bipolar ion generator further includes a housing made of an insulating material, and the housing is arranged outside the ion sheet and is used to fix the ion sheet.

5. The ion purification device for a dishwasher according to claim 4, characterized in that, The ion sheet includes, from one side to the other side, a first grounding electrode plate, a first dielectric barrier plate, a first emission electrode plate, a second dielectric barrier plate, a second emission electrode plate, a third dielectric barrier plate and a second grounding electrode plate. The sizes of the first dielectric barrier plate and the third dielectric barrier plate in the width direction are smaller than that of the second dielectric barrier plate. The housing is clamped on the second dielectric barrier plate, so that the surface of the housing is flush with the surface of the ion sheet, or the surface of the housing is recessed from the surface of the ion sheet.

6. The ion purification device for a dishwasher according to claim 4, characterized in that, The opposite ends of the housing are respectively clamped on the opposite ends of the ion sheet, and there is a gap between at least one side of the ion sheet and the side of the housing.

7. The ion purification device for a dishwasher according to claim 4 or 6, characterized in that, The ion sheet includes, from one side to the other side, a first grounding electrode plate, a first dielectric barrier plate, a first emission electrode plate, a second dielectric barrier plate and a second grounding electrode plate.

8. The ion purification device for a dishwasher according to claim 4, characterized in that, Both the first electrical connector and the second electrical connector are arranged inside the housing. A first connection hole and a second connection hole are formed at the end of the housing. The first plug is electrically connected to the ion sheet in a pluggable manner through the first connection hole; the second plug is electrically connected to the ion sheet in a pluggable manner through the second connection hole.

Images