CN211879778U - Ion generator and air purification device - Google Patents

Abstract

The utility model relates to an air purification technical field especially relates to an ion generator and air purification device. The utility model provides an ion generator, include: the ion sheet is used for generating ion groups of different sign charges, and comprises an emission polar plate, a grounding polar plate and a medium blocking plate, wherein the medium blocking plate is positioned between the emission polar plate and the grounding polar plate; the shell comprises a first shell and a second shell, and a cavity is formed when the first shell and the second shell are covered; a hollow area is formed in the shell and used for releasing the ion groups of the different-sign charges; the ion piece is located in the cavity, the ion piece is located along each end clamp of length direction first casing with between the second casing, the size of ion piece along width direction is less than or equal to the size of cavity along width direction, the utility model discloses an implementation can effectively reduce the deformation that the ion piece leads to because of receiving the casing suppression, promotes ion generator's ion release performance.

Description

Ion generator and air purification device

Technical Field

The utility model relates to an air purification technical field especially relates to an ion generator and air purification device.

Background

The ion generator generates negative ions by using a method of boosting the power frequency voltage to the required voltage by using a high-voltage transformer, releases the negative ions into the surrounding air, purifies the air and improves the living environment of people.

The core component of the ion generator is an ion sheet for generating ion groups, and the conventional ion generator generally adopts a shell made of an insulating material to package the ion sheet for generating the ion groups in consideration of safety and convenience in installation, and a hollow-out area is formed in the shell so as to release the ions into the air. In the packaging structure, the ion sheet is easily deformed due to the pressing of the shell, so that the ion release performance of the ion generator is affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to reduce the deformation of ion piece, promote ion generator's ion release performance.

In order to achieve the above object, the present invention provides the following technical solutions:

in a first aspect, the present invention provides an ionizer, comprising: the ion sheet is used for generating ion groups of different sign charges, and comprises an emission polar plate, a grounding polar plate and a medium blocking plate, wherein the medium blocking plate is positioned between the emission polar plate and the grounding polar plate; the shell comprises a first shell and a second shell, and a cavity is formed when the first shell and the second shell are covered; a hollow area is formed in the shell and used for releasing the ion groups of the different-sign charges; the ion sheet is located in the cavity, each end of the ion sheet along the length direction is clamped between the first shell and the second shell, and the size of the ion sheet along the width direction is smaller than or equal to that of the cavity along the width direction.

In one embodiment, the size of the ground plate in the width direction is smaller than or equal to the size of the dielectric barrier plate in the width direction; the size of the emission polar plate along the width direction is smaller than or equal to the size of the medium blocking plate along the width direction; the size of the medium blocking plate along the width direction is smaller than or equal to the size of the cavity along the width direction.

In one embodiment, the grounding electrode plate sequentially comprises a first fixing part arranged at one end, a grid part and a second fixing part arranged at the other end along the length direction; the size of the grid part along the length direction is smaller than or equal to the size of the medium blocking plate along the length direction; the emitting polar plate sequentially comprises a first leading-out end arranged at one end, an electrode part and a second leading-out end arranged at the other end along the length direction; the size of the electrode part along the length direction is smaller than or equal to the size of the medium baffle plate along the length direction.

In one embodiment, the ground plates include a first ground plate and a second ground plate; the media barrier plates include a first media barrier plate and a second media barrier plate; the first grounding polar plate, the first medium blocking plate, the emission polar plate, the second medium blocking plate and the second grounding polar plate are sequentially stacked.

In one embodiment, a fastening groove for fixing the grounding polar plate, the dielectric barrier plate and the emission polar plate is arranged in the second shell; the first shell is used for covering the second shell and two ends of the ion sheet along the length direction.

In one embodiment, the first fixing portion and the second fixing portion of the ground plate are sandwiched between the first shell and the second shell; each end of the medium blocking plate along the length direction is clamped between the first shell and the second shell, so that the surface of the ion sheet is flush with the surface of the shell or lower than the surface of the shell.

In an embodiment, the housing comprises a first socket and a second socket; the ion generator further comprises a first electric connector arranged in the first jack and a second electric connector arranged in the second jack; one end of the first electric connector is electrically connected with the second leading-out end of the emission polar plate, and the other end of the first electric connector is used for connecting alternating-current high-voltage electricity; one end of the second electric connector is electrically connected with the second fixing part of the grounding polar plate, and the other end of the second electric connector is used for being connected with a ground wire.

In one embodiment, the first electrical connector is electrically connected with one end of a first plug, the other end of the first plug is electrically connected with a first lead, and the first lead is used for connecting an alternating current high voltage power supply; the second electric connector is electrically connected with one end of a second plug, the other end of the second plug is electrically connected with a second lead, and the second lead is used for being connected with the ground; the first electric connecting piece and the second electric connecting piece are metal female plugs of a plug-in buckle type; the first plug and the second plug are metal male plugs of a plug-and-socket type; a first insulating part is arranged at the joint of the first plug and the first lead; and a second insulating part is arranged at the joint of the second plug and the second lead.

In a second aspect, the present invention further provides an air purification device, including the ion generator of the first aspect and any one of the embodiments thereof.

In one embodiment, the ion generator is mounted at the air outlet of the air purification device.

Compared with the prior art, the utility model discloses a scheme has following advantage:

the utility model discloses the casing that encapsulates the ion piece includes first casing and second casing, adopt the ion piece to hold the clamp along length direction's each end and locate the method between first casing and the second casing, fix the ion piece in the cavity that forms when closing by first casing and second casing lid, and set up the size that the size of ion piece along width direction is less than or equal to the size of cavity along width direction, so that the side of ion piece length direction need not to receive the suppression of casing, reduce the deformation that the ion piece leads to because of receiving the casing suppression, promote ion generator's ion release performance.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is an exploded view of an ionizer according to an embodiment of the present invention.

Fig. 2 is another exploded view of an ionizer according to an embodiment of the present invention.

Fig. 3 is an exploded view of an ion sheet in an ionizer according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of the ionizer according to an embodiment of the present invention when the first housing and the second housing are covered.

Fig. 5 is a schematic view of an overall structure of an ionizer according to an embodiment of the present invention.

Fig. 6 is a schematic sectional view of the ionizer shown in fig. 5 taken along the length direction a-a.

Fig. 7 is a schematic sectional view of the ionizer shown in fig. 5 taken along a width direction B-B.

Fig. 8 is a schematic structural view illustrating an ion plate stacked on a second housing as a carrier in an ionizer according to an embodiment of the present invention.

Fig. 9 is a schematic view illustrating a corresponding relationship between an ion plate, a first electrical connector and a second electrical connector in an ionizer according to an embodiment of the present invention.

The reference numbers illustrate:

001-ionizer;

100-ion plate, 110-grounding polar plate, 120-dielectric barrier plate, 130-emitting polar plate, 111-first grounding polar plate, 112-second grounding polar plate, 121-first dielectric barrier plate, 122-second dielectric barrier plate, 113-first fixed part, 114-grid part, 115-second fixed part, 131-first leading-out terminal, 132-electrode part and 133-second leading-out terminal;

200-shell, 210-first shell, 220-second shell, 230-hollow area, 240-cavity, 250-first socket, 260-second socket and 510-through hole;

300 — a first electrical connection;

400-a second electrical connection;

520-a blocking piece;

002-first plug, 003-second plug, 004-first wire, 005-second wire, 006-first insulator, 007-second insulator.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

The utility model provides an ion generator 001 and air purification device, mainly used release the ion crowd of different sign electric charges, promote ion release performance.

In one embodiment, referring to fig. 1 to 9, an ionizer 001 includes: an ion plate 100 and a housing 200.

Referring to fig. 2, the ion plate 100 is used for generating ion packets of opposite sign charges, and includes a ground plate 110, a dielectric barrier plate 120, and an emission plate 130. The ion plate 100 with single-side ion release is formed when the grounding electrode plate 110, the dielectric barrier plate 120 and the emitting electrode plate 130 are sequentially stacked.

Alternatively, referring to fig. 1 and 3, the ground plate 110 includes a first ground plate 111 and a second ground plate 112; the media barrier 120 includes a first media barrier 121 and a second media barrier 122; when the first ground plate 111, the first dielectric barrier plate 121, the emission plate 130, the second dielectric barrier plate 122 and the second ground plate 112 are sequentially stacked, the ion plate 100 capable of releasing ions on both sides is formed. Optionally, the first ground plate 111 is the same size as the second ground plate 112; the first media barrier plate 121 is the same size as the second media barrier plate 122.

Referring to fig. 4, the housing 200 includes a first housing 210 and a second housing 220, and a cavity 240 is formed when the first housing 210 and the second housing 220 are covered; the housing 200 is formed with a hollow 230, and when the ion plate 100 is located in the cavity 240, the hollow 230 is used for releasing ion groups of different sign charges generated by the ion plate 100.

Referring to fig. 5 and 6, when the housing 200 is used to encapsulate the ion plate 100 to form the ion generator 001, the second housing 220 is used as a carrier, and the components included in the ion plate 100 are sequentially stacked, and the first housing 210 is used to cover the second housing 220 and two ends of the ion plate 100 along the length direction, so that the ion plate 100 is located in the cavity 240, and each end of the ion plate 100 along the length direction is sandwiched between the first housing 210 and the second housing 220. Optionally, referring to fig. 7, the dimension of the ion plate 100 in the width direction is smaller than or equal to the dimension of the cavity 240 in the width direction, so that the side surface of the ion plate 100 in the length direction is not pressed by the housing 200, thereby reducing the deformation of the ion plate 100 and improving the ion release performance.

In one embodiment, the dimension of the ground plate 110 (the first ground plate 111, the second ground plate 112) in the width direction is less than or equal to the dimension of the dielectric barrier plate 120 (the first dielectric barrier plate 121, the second dielectric barrier plate 122) in the width direction; the dimension of the emitter plate 130 in the width direction is less than or equal to the dimension of the dielectric barrier 120 (the first dielectric barrier 121, the second dielectric barrier 122) in the width direction; the dimension of the media barrier 120 (first media barrier 121, second media barrier 122) in the width direction is less than or equal to the dimension of the cavity 240 in the width direction; optionally, the dimension of the emitter plate 130 in the width direction is smaller than or equal to the dimension of the ground plate 110 (the first ground plate 111 and the second ground plate 112) in the width direction, so as to ensure the ion release performance when the emitter plate 130 and the ground plate 110 (the first ground plate 111 and the second ground plate 112) form an electric field.

In an embodiment, referring to fig. 3, the ground plate 110 (the first ground plate 111 and the second ground plate 112) sequentially includes a first fixing portion 113 (a portion shown by a dotted circle in fig. 3) disposed at one end, a mesh portion 114 and a second fixing portion 115 disposed at the other end along a length direction, and a size of the mesh portion 114 along the length direction is smaller than that of the dielectric barrier 120; optionally, the dimension of the mesh portion 114 in the length direction is less than or equal to the dimension of the media barrier 120 in the length direction; when the dimension of the mesh part 114 along the length direction is smaller than the dimension of the dielectric barrier 120 along the length direction (as shown in fig. 5), the two ends of the mesh part 114 along the length direction are not pressed by the housing 200, so that the deformation of the mesh part 114 is reduced, and the ion release performance is improved.

The emitter plate 130 sequentially includes a first lead-out terminal 131, an electrode portion 132 and a second lead-out terminal 133, wherein the first lead-out terminal 131, the electrode portion 132 and the second lead-out terminal 133 are arranged at one end and the other end of the emitter plate 130, and the size of the electrode portion 132 in the length direction is smaller than or equal to the size of the dielectric barrier plate 120 in the length direction. Optionally, the dimension of the electrode portion 132 along the length direction is smaller than or equal to the dimension of the mesh portion 114 along the length direction, so as to ensure the ion release performance when the emitter plate 130 and the ground plate 110 (the first ground plate 111 and the second ground plate 112) form an electric field.

Optionally, the first fixing portion 113, the grid portion 114 and the second fixing portion 115 are integrally formed to form the ground plate 110 (the first ground plate 111 and the second ground plate 112); the first lead-out terminal 131, the electrode part 132 and the second lead-out terminal 133 are integrally formed to constitute the emitter plate 130. Wherein, the mesh part 114 is provided with meshes distributed in an array form.

In an embodiment, referring to fig. 1 and 8, the second casing 220 has a slot for fixing the ground plate 110 (the first ground plate 111, the first dielectric barrier plate 121), the emitter plate 130, and the dielectric barrier plate 120 (the second dielectric barrier plate 122, the second ground plate 112). When the ion plate 100 is a component releasing ions on a single side, the second housing 200 is used as a carrier, the grounding electrode plate 110, the dielectric barrier plate 120 and the emission electrode plate 130 are fixed on the second housing 200 based on the fastening groove in the second housing 200, and the second housing 220 and the ion plate 100 are covered by the first housing 210. When the ion plate 100 is a double-sided ion releasing assembly, the second housing 220 is used as a carrier, and the first ground plate 111, the first dielectric barrier plate 121, the emission plate 130, the second dielectric barrier plate 122, and the second ground plate 112 are sequentially fixed on the second housing 220 based on a snap-fit groove in the second housing 220, and the second housing 220 and the ion plate 100 are covered by the first housing 210. The first shell 210 and the second shell 220 are welded and bonded by an ultrasonic welding process, so that the ion plate 100 is prevented from moving between layers.

When the first ground plate 111 and the second ground plate 112 have the same size, they correspond to the same fastening slot in the second housing 220; when the first media barrier 121 and the second media barrier 122 are the same size, they correspond to the same snap groove in the second housing 220.

In an embodiment, in the packaging structure of the ionizer 001, the first fixing portion 113 of the ground plate 110 (the first ground plate 111 and the second ground plate 112) is sandwiched between the first casing 210 and the second casing 220; the second fixing portion 115 of the grounding plate 110 (the first grounding plate 111 and the second grounding plate 112) is sandwiched between the first casing 210 and the second casing 220; the emitter plate 130 is fixed in the case 200 by the first and/or second lead-out terminals 131 and 133.

Optionally, each end of the dielectric barrier plate 120 (the first dielectric barrier plate 121 and the second dielectric barrier plate 122) in the length direction is sandwiched between the first housing 210 and the second housing 220, so that the surface of the ion plate 100 is flush with the surface of the housing 200, and the surface of the ion plate 100 and the surface of the housing 200 are on the same horizontal line, when the airflow passes through the ion release surface, the ion amount can be better brought out; optionally, referring to fig. 6, the surface of the ion plate 100 is lower than the surface of the housing 200 (the horizontal line corresponding to the surface of the ion plate 100 is parallel to the horizontal line corresponding to the surface of the housing 200), so as to prevent the surface of the ion plate 100 from directly contacting the outside during installation and use, reduce deformation of the ion plate 100 caused by external force, and improve ion release performance.

In one embodiment, the housing 200 is made of an insulating material; the emitter plate 130 and the ground plate 110 are made of a metal material; the dielectric barrier plate 120 is made of glass or ceramic.

In one embodiment, referring to fig. 1, the housing 200 includes a first outlet 250 and a second outlet 260; the utility model provides an ionizer 001 is still including locating first electric connector 300 of first socket 250, and locate second electric connector 400 of second socket 260. One end of the first electrical connector 300 is electrically connected to the emitter plate 130, and the other end is used for connecting to an ac high voltage power supply; one end of the second electrical connector 400 is electrically connected to the ground plate 110 (the first ground plate 111 and the second ground plate 112), and the other end is used for connecting to a ground line.

Optionally, the emitter plate 130 is electrically connected with the first electrical connector 300 through the second outlet 133; the ground plate 110 (the first ground plate 111 and the second ground plate 112) is electrically connected to the second electrical connector 400 through the second fixing portion 115.

Alternatively, to facilitate the installation of the ionizer 001, the second leading-out terminal 133 and the second fixing portion 115 are disposed at the same end of the ion plate 100 along the length direction, i.e., the first inserting hole 250 and the second inserting hole 260 are disposed at the same end of the housing 200 along the length direction.

Alternatively, when the ionizer 001 is connected to the ac high voltage power through the first electrical connector 300, the first electrical connector 300 is electrically connected to one end of the first plug 002, the other end of the first plug 002 is electrically connected to the first lead 004, and the first lead 004 is used for connecting the ac high voltage power. When the ionizer 001 is connected to the ground line through the second electrical connector 400, the second electrical connector 400 is electrically connected to one end of the second plug 003, the other end of the second plug 003 is electrically connected to the second conductive wire 005, and the second conductive wire 005 is used for being connected to the ground. Wherein, the range of the high voltage electricity is 1000v-3000v, when the ion generator works, a power converter is needed to be additionally arranged for converting the commercial power into the voltage needed by the ion plate 100.

Optionally, in order to facilitate the access of the external line, the first electrical connector 300 and the second electrical connector 400 are metal female plugs of a plug-and-socket type, and the first plug 002 and the second plug 003 are metal male plugs of a plug-and-socket type; the male plug and the female plug have wide contact surfaces and can effectively ensure the conductivity. In order to ensure the use safety, the joint of the first plug 002 and the first wire 004 is provided with a first insulator 006, and the joint of the second plug 003 and the second wire 005 is provided with a second insulator 007. Optionally, when the first housing 210 is covered with the second housing 220, the first socket 250 is oval and the second socket 260 is round; correspondingly, first insulating part 006 is oval, second insulating part 007 is circular, and oval-shaped design representation relevant part is used for connecting interchange high-voltage electricity, and circular design representation relevant part is used for connecting the ground wire, can effectively avoid first plug 002 and second plug 003 misplugging.

In an embodiment, referring to fig. 9, one end (in the form of a sheet) of the first electrical connector 300 is fixed to the second terminal 133 by high frequency welding, and the other end is electrically connected to the first plug 002 in a pluggable manner; when in welding, one end of the first electric connector 300 in a sheet shape can be stacked above or below the second leading-out end 133; optionally, to achieve the stability of the electrical connection between the first electrical connector 300 and the second lead-out 133, the size of the stacked welding position is the same. One end (in a hollow rectangular shape) of the second electrical connector 400 is welded and fixed with the second fixing portion 115 by high-frequency welding, and the other end is electrically connected with the second plug 003 in a pluggable manner; when the ground plate 110 includes the first ground plate 111 and the second ground plate 112, in order to improve the stability of the electrical connection, one end of the second electrical connector 400 having a hollow rectangular shape is sandwiched between the second fixing portion 115 of the first ground plate 111 and the second fixing portion 115 of the second ground plate 112, and optionally, the sizes of the stacked welding positions of the three are the same.

In an embodiment, referring to fig. 1, the first casing 210 and the second casing 220 are provided with through holes 510 at positions corresponding to the second fixing portion 115 and the second leading-out terminal 133, the second fixing portion 115 of the first ground plate 111 can be exposed out of the casing 200 through the through hole 510 of the first casing 210, the second fixing portion 115 of the second ground plate 112 can be exposed out of the casing 200 through the through hole 510 of the second casing 220, and the second leading-out terminal 133 of the transmitting plate 130 can be exposed out of the casing 200 through the through hole of the first casing 210 or the second casing 220, so that an operator can conveniently perform tests such as a durability test on the ionizer 001. Adapted to the through-holes 510 of the first and second housings 210 and 220, the ionizer 001 further comprises a plurality of plugs 520, the plugs 520 being for sealing the through-holes 510. In one embodiment, the blocking member 520 is made of an elastic material such as rubber or silicone, and is designed such that, on one hand, the elastic material such as rubber or silicone is easily deformed to facilitate the removal of the blocking member 520 from the through hole 510; on the other hand, elastic materials such as rubber or silica gel have better waterproof sealing performance and insulating performance.

In one embodiment, the present invention further provides an air purification apparatus including the ionizer 001 of any of the above embodiments. Alternatively, the ion generator 001 is installed at the air outlet of the air cleaning device.

In the ion generator 001 provided by the present invention, when the ion sheet 100 is formed by stacking the first grounding electrode plate 111, the first dielectric barrier plate 121, the emission electrode plate 130, the second dielectric barrier plate 122, and the second grounding electrode plate 112 in sequence to form a double-sided ion-releasing assembly, the emission electrode plate 130 and the first grounding electrode plate 111 form a first electric field, and electrons are led out from one end of the emission electrode plate 130 to the first grounding electrode plate 111 through the first dielectric barrier plate 121; the emitting polar plate 130 and the second ground polar plate 112 form a second electric field, and electrons are led out from one end of the emitting polar plate 130 to the second ground polar plate 112 through the second dielectric barrier plate 122; the first electric field and the second electric field are opposite in direction, so that the double-sided bipolar ion alternating generator with a symmetrical structure is formed, the number of escaping electrons is increased in unit time, ion airflow is enhanced, and the air purification speed is accelerated.

The utility model provides an among the ion generator 001, when the ion piece 100 stacked gradually by ground plate 110, medium barrier plate 120 and transmission plate 130 and constitutes the subassembly of single face release ion, transmission plate 130 formed the electric field with ground plate 110, and the electron passed medium barrier plate 120 from transmission plate 130 and draws forth to ground plate 110, so forms the bipolar ion alternate generator of single face.

The utility model discloses an ion generator, form an electric field that has accurate size after transmission polar plate and ground plate insert the electric current, adopt the alternating current, draw the medium barrier plate with the electron that the transmission polar plate sent in electric field ground connection one side, produce the gas ion of abnormal sign, some electron flows in the ground plate and forms the electric current after meeting with the ground plate, some electron then escapes the medium surface and meets with indoor air molecule, when the electron that escapes reaches certain speed, can encourage the oxygen molecule to be the ionic state, ionized gas makes the particulate matter go up, electrified particulate matter just meets ground electrode or reverse polarity thing, particulate matter in the air is reduced very easily, make the floating dust in the air turn into the dust fall, reduce floated particulate matter, the non-equilibrium positive and negative oxygen ion that produces simultaneously possesses the physical impact effect of high kinetic energy, be favorable to the decomposition of harmful volatile gas molecule under physical effect and chemical effect dual function, can also kill the pathogenic microorganisms, thereby achieving the purposes of air purification and disinfection.

To sum up, the utility model provides an among ion generator and the air purification device, the casing that encapsulates the ion piece includes first casing and second casing, adopt the ion piece to press from both sides the method of locating between first casing and the second casing along length direction's each end, fix the ion piece in the cavity that forms when closing by first casing and second casing lid, and set up the size that the size of ion piece along width direction is less than or equal to the size of cavity along width direction, so that the side of ion piece length direction need not to receive the suppression of casing, reduce the deformation that the ion piece leads to because of receiving the casing suppression, promote ion generator's ion release performance.

The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. An ionizer, comprising:

an ion plate (100) for generating ion packets of opposite sign charges, the ion plate comprising an emitter plate (130), a ground plate (110) and a dielectric barrier plate (120), the dielectric barrier plate (120) being located between the emitter plate (130) and the ground plate (110);

the shell (200) comprises a first shell (210) and a second shell (220), and a cavity (240) is formed when the first shell (210) and the second shell (220) are covered; a hollow-out area (230) is formed in the shell (200) and used for releasing the ion groups of the different-sign charges;

the ion sheet (100) is located in the cavity (240), each end of the ion sheet (100) along the length direction is clamped between the first shell (210) and the second shell (220), and the size of the ion sheet (100) along the width direction is smaller than or equal to the size of the cavity (240) along the width direction.

2. The ionizer of claim 1, wherein the dimension of the ground plate (110) in the width direction is smaller than or equal to the dimension of the dielectric barrier plate (120) in the width direction; the size of the emission polar plate (130) along the width direction is smaller than or equal to the size of the medium blocking plate (120) along the width direction; the size of the medium blocking plate (120) along the width direction is smaller than or equal to the size of the cavity (240) along the width direction; the size of the emitting plate (130) along the width direction is smaller than or equal to the size of the grounding plate (110) along the width direction.

3. The ionizer according to claim 2, wherein the ground plate (110) comprises a first fixing portion (113) provided at one end, a mesh portion (114), and a second fixing portion (115) provided at the other end in this order along a length direction; the dimension of the grid part (114) along the length direction is smaller than or equal to the dimension of the medium baffle plate (120) along the length direction; the emitting electrode plate (130) sequentially comprises a first leading-out end (131) arranged at one end, an electrode part (132) and a second leading-out end (133) arranged at the other end along the length direction; the dimension of the electrode portion (132) in the length direction is smaller than or equal to the dimension of the medium barrier plate (120) in the length direction.

4. The ionizer of claim 1 or 3, wherein the ground plate (110) comprises a first ground plate (111) and a second ground plate (112); the media barrier plate (120) comprises a first media barrier plate (121) and a second media barrier plate (122); the first grounding polar plate (111), the first medium blocking plate (121), the emission polar plate (130), the second medium blocking plate (122) and the second grounding polar plate (112) are sequentially stacked.

5. The ionizer of claim 1, wherein said second housing (220) has a slot therein for fixing said ground plate (110), dielectric barrier plate (120) and emitter plate (130); the first shell (210) is used for covering the second shell (220) and two ends of the ion plate (100) along the length direction.

6. The ionizer according to claim 3, wherein the first fixing portion (113) and the second fixing portion (115) of the ground plate (110) are interposed between the first housing (210) and the second housing (220); each end of the medium blocking plate (120) in the length direction is clamped between the first shell (210) and the second shell (220) so that the surface of the ion sheet (100) is flush with the surface of the shell (200) or the surface of the ion sheet (100) is lower than the surface of the shell (200).

7. The ionizer of claim 3, wherein said housing (200) comprises a first socket (250) and a second socket (260); the ionizer (001) further comprises a first electrical connector (300) provided to the first socket (250), and a second electrical connector (400) provided to the second socket (260); one end of the first electric connector (300) is electrically connected with the second leading-out end (133) of the emitting polar plate (130), and the other end of the first electric connector is used for connecting alternating-current high-voltage electricity; one end of the second electric connector (400) is electrically connected with the second fixed part (115) of the grounding polar plate (110), and the other end of the second electric connector is used for being connected with a ground wire.

8. The ionizer of claim 7, wherein said first electrical connector (300) is electrically connected to one end of a first plug (002), and the other end of said first plug (002) is electrically connected to a first conductor (004), said first conductor (004) being for connecting an alternating current high voltage electric power; the second electric connector (400) is electrically connected with one end of a second plug (003), the other end of the second plug (003) is electrically connected with a second conducting wire (005), and the second conducting wire (005) is used for being connected to the ground; the first electric connector (300) and the second electric connector (400) are metal female plugs of a plug-and-socket type; the first plug (002) and the second plug (003) are metal male plugs of a plug-in type; a first insulating part (006) is arranged at the joint of the first plug (002) and the first lead (004); and a second insulating piece (007) is arranged at the joint of the second plug (003) and the second lead (005).

9. An air cleaning device, characterized by comprising an ionizer (001) according to any one of claims 1 to 8.

10. The air cleaning device as claimed in claim 9, wherein the ion generator (001) is installed at an air opening of the air cleaning device.

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