CN104566691B

CN104566691B - Insulating buckle subassembly and have its collection dirt subassembly

Info

Publication number: CN104566691B
Application number: CN201410705065.6A
Authority: CN
Inventors: 张敏; 游斌; 易正清; 田镇龙; 陈良锐
Original assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2014-09-30
Filing date: 2014-11-28
Publication date: 2022-02-25
Anticipated expiration: 2034-11-28
Also published as: CN104566691A

Abstract

The invention discloses an insulating buckle assembly and a dust collecting assembly with the same. Wherein, insulating buckle subassembly includes: the at least one first insulating buckle comprises a first body, at least two first clamping feet and a first clamping hook, the at least two first clamping feet extend downwards from the lower end of the first body, and the first clamping hook extends upwards from the upper end of the first body; the insulating buckle of second includes: the top of the second body is provided with an opening, the bottom of the second body is open, and second clamping feet extend outwards from two opposite sides of the outer surface of the second body. According to the insulating buckle component, the first insulating buckle can be reliably connected between the two parts by the first clamping pin and the first clamping hook, and the second insulating buckle can be reliably connected between the two parts by the second clamping pin, the second clamping hook and the boss, so that the structure of the first insulating buckle is simplified, and the assembly efficiency is improved.

Description

Insulating buckle subassembly and have its collection dirt subassembly

Technical Field

The invention relates to the technical field of household appliances, in particular to an insulating buckle component and a dust collecting component with the same.

Background

Along with the increase of industrial development, urban construction and automobile usage, dust in outdoor environment increases, air pollution is intensified, and indoor air is also deteriorated due to outdoor air pollution. On the other hand, decoration and smoking are also important causes of the accumulation of harmful particles in the indoor air. With the improvement of living standard, people's health consciousness is increasingly strengthened, higher requirements are put forward to indoor air quality, and air conditioners with PM2.5 removing and purifying functions are more and more favored by consumers.

At present, the traditional air purification device is mainly a compact HEPA filter screen, and particulate matters in airflow are blocked by the compact screen so as to be adsorbed when passing through the compact screen. The compact net has the defects that meshes are easy to block, need to be replaced frequently, and has large resistance loss, and a purification product matched with the net has large motor load, increased power consumption, high noise and the like. The air purification device using electrostatic dust collection has a complex structure and a complex assembly process, and is easy to generate electric leakage in the use process, thereby bringing potential safety hazards to the family life of users.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.

Therefore, the invention needs to provide an insulating buckle assembly which has the advantages of simple structure and high assembly efficiency.

The invention also provides a dust collection assembly which is provided with the insulating buckle assembly.

According to one aspect of the present invention there is provided an insulating snap assembly comprising: the first insulation buckle comprises a first body, at least two first clamping pins and a first clamping hook, wherein the at least two first clamping pins extend downwards from the lower end of the first body, and the first clamping hook extends upwards from the upper end of the first body; a second insulating snap, the second insulating snap comprising: the novel LED lamp holder comprises a second body, a second clamping hook and a boss, wherein the second body is hollow, the top of the second body is provided with an opening, the bottom of the second body is open, second clamping pins extend outwards from two opposite sides of the outer surface of the second body, the second clamping hook extends downwards from the side wall of the second body between the two second clamping pins, and the boss extends upwards from the top of the second body.

According to the insulating buckle assembly, the first insulating buckle can be reliably connected between the two parts by the first clamping pin and the first clamping hook on the first insulating buckle, and the second insulating buckle can be reliably connected between the two parts by the second clamping pin, the second clamping hook and the boss, so that the structure of the first insulating buckle is simplified, and the assembly efficiency is improved.

In one example of the present invention, the first body and the second body have a height of 2mm or more.

Preferably, a reinforcing rib is connected between the first body and the first clamping leg.

Preferably, the first engaging leg includes three.

Optionally, the first body has a through hole penetrating the first body in an up-down direction.

In one example of the present invention, the upper end surface of the first body includes: the first section is positioned on one side far away from the first clamping hook and positioned in a horizontal plane; the second section is positioned on one side close to the first clamping hook and positioned in the other horizontal plane below the first section; a connecting segment connected between the first segment and the second segment.

Optionally, a cross section of the second body in the up-down direction has a square shape.

Preferably, a guide arc surface is formed between the side wall of the opening and the upper end surface of the second body.

Preferably, the opening is formed as a square hole.

Optionally, the second engaging leg is disposed at a position adjacent to a lower end of the sidewall of the second body, the sidewall of the second body located below the second engaging leg forms a guiding portion, and a cross-sectional area of the guiding portion in the vertical direction is gradually reduced from top to bottom.

Preferably, a guide inclined plane is arranged between the lower end surface of the second hook and the side wall of the second hook.

Preferably, the cross section of the boss in the up-down direction is rectangular, and the cross section area of the boss in the up-down direction is gradually increased from top to bottom.

According to another aspect of the present invention, there is provided a dust collection assembly comprising: the first annular ring comprises a first outer ring, a plurality of first blades and a first connecting terminal, wherein the plurality of first blades are arranged on the inner surface of the first outer ring along the circumferential direction, and the first connecting terminal is arranged on the radial outer side of the first outer ring; the second annular ring comprises a second outer ring, a plurality of second blades and second connecting terminals, the second annular ring is arranged below the first annular ring, the plurality of second blades are arranged on the inner surface of the second outer ring along the circumferential direction, the plurality of second blades and the plurality of first blades are arranged in a staggered mode in the circumferential direction, the second connecting terminals are arranged on the radial outer side of the second outer ring, and the second connecting terminals are arranged on the radial outer side of the second outer ring and correspond to the first connecting terminals up and down; the insulating snap assembly as described above mounted on the first and second annular rings to connect the first and second annular rings in spaced relation.

According to the dust collection assembly, the first insulation buckle can be reliably connected between the two parts by using the first clamping pin and the first clamping hook on the first insulation buckle, and the second insulation buckle can be reliably connected between the two parts by using the second clamping pin, the second clamping hook and the boss, so that the structure of the first insulation buckle is simplified, and the assembly efficiency is improved.

In addition, the first annular ring and the second annular ring are connected at intervals by utilizing the insulating buckle assembly, so that a plurality of high-voltage direct-current electric fields can be formed between the first annular ring and the second annular ring, and the dust removal efficiency of the dust collection assembly is improved. The plurality of first blades and the plurality of second blades have a rectifying effect on the airflow passing through the dust collecting assembly, so that the uniformity of the airflow is enhanced, the air inlet pressure and the resistance during flowing of the airflow are reduced, and the noise generated during flowing of the airflow is reduced. Meanwhile, the connection reliability between the first annular ring and the second annular ring is improved, the structure of the dust collection assembly is simplified, and the assembly efficiency is improved.

In an embodiment of the invention, a positioning column is disposed on a peripheral wall of the second outer ring, the at least two first engaging legs are sleeved outside the positioning column to connect the first body with the second outer ring, and the first engaging hooks are fastened with an edge of the first outer ring to connect the first body with the first outer ring.

Preferably, the positioning column is arranged at the intersection of the second outer ring and one of the second blades.

Preferably, an outer side surface of the first body, which is far away from the center of the first outer ring in the vertical direction, is formed into an arc-shaped surface, one of the first engaging legs is engaged to the outer side of the second outer ring, and the outer surface of the first engaging leg is flush with the arc-shaped surface.

Preferably, the number of the first insulating buckles is three and is uniformly distributed along the circumferential direction of the first annular ring.

In an example of the present invention, an elastic buckle extends downwards from a lower surface of the first connection terminal, and the elastic buckle extends into the second body through the opening and is clamped in the second body; the first connecting terminal is provided with a first clamping hole, and the boss penetrates through the first clamping hole; the second connecting terminal is provided with a second clamping hole, the second clamping hook penetrates through the second clamping hole and then is clamped to the bottom surface of the second connecting terminal, the second clamping hook is abutted to the lower surface of the second connecting terminal, and the second clamping foot is abutted to the upper surface of the second connecting terminal.

According to one embodiment of the invention, the first annular ring further comprises: a first inner ring connected radially inward of the plurality of first blades.

Further, the first annular ring further comprises: the first reinforcing ring is connected to the inner surface of the first inner ring through a plurality of first reinforcing ribs distributed along the circumferential direction.

According to an embodiment of the invention, the second annular ring further comprises: a second inner ring connected to a lower end of a radially inner side of the plurality of second blades.

Further, the second annular ring further comprises: and the second reinforcing ring is connected to the inner surface of the second inner ring through a plurality of second reinforcing ribs distributed along the circumferential direction.

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

FIG. 1 is a schematic perspective view of a dust collection assembly according to one embodiment of the present invention;

FIG. 2 is a schematic view of the dust collection assembly of FIG. 1 connected to a high voltage power supply;

fig. 3 is a schematic perspective view of an air cleaning apparatus according to an embodiment of the present invention;

FIG. 4 is an exploded perspective view of the air purification apparatus of FIG. 3;

FIG. 5 is a perspective view of the first annular ring of FIG. 4;

FIGS. 6 and 7 are front and right side views of the first annular ring of FIG. 5;

FIG. 8 is a cross-sectional view taken along line M-M of FIG. 6;

FIGS. 9 and 10 are enlarged partial schematic views at A, B in FIG. 5;

FIG. 11 is a perspective view of the second annular ring of FIG. 4;

FIGS. 12 and 13 are front and right side views of the second annular ring of FIG. 11;

FIG. 14 is a cross-sectional view taken along the direction N-N in FIG. 12;

FIG. 15 is an enlarged partial schematic view at C of FIG. 11;

FIG. 16 is an enlarged partial schematic view of FIG. 11;

FIGS. 17 and 18 are enlarged partial schematic views at D, E in FIG. 3;

FIGS. 19 and 20 are enlarged partial views of the first insulating clip of FIG. 1 engaging the first and second annular rings;

FIG. 21 is an enlarged partial schematic view at F of FIG. 4;

FIG. 22 is a perspective view of the first insulating clip of FIG. 4;

23-25 are front, left and top views of the first insulating clasp of FIG. 22;

FIGS. 26 and 27 are cross-sectional views taken along line P-P, T-T in FIG. 23;

FIG. 28 is a perspective view of the second insulating clip of FIG. 4;

FIG. 29 is an enlarged partial schematic view at G of FIG. 3;

fig. 30 is a partially enlarged schematic view of a portion where the third connection terminal is engaged with the air guide in fig. 3;

FIG. 31 is a cross-sectional view taken along the X-X direction in FIG. 30;

FIG. 32 is an enlarged partial schematic view at H in FIG. 3;

fig. 33 is a partially enlarged schematic view of the third connection terminal and the air guide at another view angle in fig. 32;

fig. 34 is a cross-sectional view taken along the Y-Y direction in fig. 33.

Reference numerals:

the dust collection assembly 100 is provided with a dust collection assembly,

the first annular ring 110 is formed in a first annular ring,

first outer band 111, first blades 112, first electrical connection 113, first inner band 114,

the first reinforcing ring 115, the first reinforcing bead 116,

a first connection terminal 117, a first engaging hole 1171, an elastic catch 1172,

the second annular ring 120 is formed of a second annular ring,

the second outer ring 121, the positioning post 1211,

a second blade 122, a second electrical connector 123, a second inner ring 124, a second reinforcing ring 125,

the second reinforcing rib 126, the second connecting terminal 127, the second engaging hole 1271,

a third connection terminal 128, a step surface 1281, a cut 1282, a bent plate 1283,

the insulating snap-in assembly 130 is provided with,

the first insulating clip 131, the first body 1311, the first engaging pin 1312, the first hook 1313,

reinforcing rib 1314, through bore 1315, first section 1316, second section 1317, connecting end 1318,

a second insulating clip 132, a second body 1321, a second clip 1322,

a second hook 1323, a boss 1324, an opening 1325, a guide curved surface 1326, a guide portion 1327, a guide inclined surface 1328,

the air-cleaning device (200) is provided with,

the air guide member 220 is provided with a plurality of air guide members,

a first wind-guiding ring 221, a second wind-guiding ring 222,

a third hook 223, a plate 2231, a hook projection 2232,

a first extension plate 224, a second extension plate 225, a receiving groove 226, and a high voltage power supply 500.

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 or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the indicated orientations and positional relationships based on the drawings and are used merely for convenience in describing and simplifying the invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

An insulating snap assembly 130 according to an embodiment of the invention is described in detail below with reference to fig. 1-34.

As shown in fig. 22-28, an insulating snap assembly 130 according to an embodiment of the invention includes: at least one first insulating clip 131 and a second insulating clip 132.

Specifically, as shown in fig. 22 to 27, the first insulating clip 131 includes a first body 1311, at least two first engaging legs 1312, and a first hook 1313. As shown in fig. 22 and 23, the first engaging leg 1312 extends downward from the lower end of the first body 1311, and the first hook 1313 extends upward from the upper end of the first body 1311. Therefore, the first insulating clip 131 can be reliably connected between the two members by the first engaging leg 1312 and the first hook 1313, thereby simplifying the structure of the first insulating clip 131 and improving the assembling efficiency. It should be noted that the first insulating clip 1313 may be made of a material having insulating properties, and two components connected by the first insulating clip 131 are not electrically conductive, so that the use requirement between different components can be met.

As shown in fig. 28, the second insulating clip 132 includes: a second body 1321, a second hook 1323, and a boss 1324. The second body 1321 is hollow, the top of the second body 1321 has an opening 1325 and the bottom is open, the two opposite sides of the outer surface of the second body 1321 extend outward to form second engaging legs 1322, the second hook 1323 extends downward from the sidewall of the second body 1321 between the two second engaging legs 1322, and the boss 1324 extends upward from the top of the second body 1321. Therefore, the second insulating clip 132 can be reliably connected between the two components by using the second engaging pin 1322, the second hook 1323 and the boss 1324, thereby simplifying the structure of the second insulating clip 132 and improving the assembly efficiency. Likewise, the second insulating clip 132 may be made of a material having insulating properties, and two components connected by the second insulating clip 132 are not electrically conductive, so that the use requirements between different components can be satisfied.

According to the insulating buckle assembly 130 of the embodiment of the invention, the first insulating buckle 131 can be reliably connected between two components by using the first engaging leg 1312 and the first hook 1313 on the first insulating buckle 131, and the second insulating buckle 132 can be reliably connected between two components by using the second engaging leg 1322, the second hook 1323 and the boss 1324, so that the structure of the first insulating buckle 131 is simplified, and the assembly efficiency is improved.

In an embodiment of the invention, the first body 131 and the second body 132 have a coupling greater than or equal to 2 mm. In the example shown in fig. 22 and 28, the height of the first body 131 is 2mm or more and the height of the second body 132 is 2mm or more in the up-down direction. Thus, the first insulating snap 131 can space two parts apart when connecting the two parts; likewise, the second insulating snap 132 may also space two components apart when connecting the two components.

As shown in fig. 23 and 24, in order to improve the structural strength of the first insulating clip 131, a reinforcing rib 1314 is connected between the first body 1311 and the first engaging leg 1312. In the example shown in fig. 24, the reinforcing ribs 1314 may be plural, and the reinforcing ribs 1314 are distributed at intervals on the outer peripheral wall of the first body 1311. Preferably, the reinforcement rib 1314 is a triangular reinforcement rib, a first side of the triangular reinforcement rib is connected to the first body 1311, and a second side of the triangular reinforcement rib is connected to the first snap foot 1312.

Further, in one example of the present invention, the first snap foot 1312 includes three. For example, as shown in fig. 23 and 27, three first engaging legs 1312 are arranged at the lower edge of the first body 1311 at intervals. Therefore, the structural strength of the first insulating clip 131 can be further improved, and the structure of the first insulating clip 131 can be more compact and reasonable. Preferably, there are two strengthening ribs 1314 corresponding to two of the three first snap pins 1312.

As shown in fig. 23, 25, and 27, the first body 1311 has a through hole 1315 penetrating the first body 1311 in the up-down direction. In other words, the first body 1311 may be formed in a cylindrical shape, and thus, the structure of the first insulating clip 131 may be further simplified, the mass of the first insulating clip 131 may be reduced, and the production cost may be reduced, while ensuring the structural strength of the first insulating clip 131.

As shown in fig. 23, in one embodiment of the present invention, the upper end surface of the first body 1311 includes: a first segment 1316, a second segment 1317, and a connecting segment 1318. Wherein the first section 1316 is located at a side away from the first hook 1313, and the first section 1316 is located in a horizontal plane. The second section 1317 is disposed on a side near the first hook 1313, and the second section 1317 is disposed in another horizontal plane below the first section 1316. The connecting section 1318 is connected between the first section 1316 and the second section 1317. In other words, the distance between the connecting section 1318 and the first hook 1313 increases from bottom to top. Therefore, when the first hook 1313 is connected to other components, the connection section 1318 can play a guiding role, so that the first insulating buckle 131 is connected to other components, and the assembling efficiency of the first insulating buckle 131 is improved.

As shown in fig. 28, in one embodiment of the present invention, the cross-section of the second body 1321 in the up-down direction has a square shape. Therefore, the structural strength of the second insulating fastener 132 can be improved, and the structure of the second insulating fastener 132 can be more compact and reasonable.

In the example shown in fig. 28, a guide curved surface 1326 is formed between the side wall of the opening 1325 and the upper end surface of the second body 1321. Thus, the guiding cambered surface 1326 has a guiding function to facilitate the matching connection of other components with the second insulating buckle 132. The shape of the opening 1325 is not particularly limited, and for example, in a preferred example of the present invention, the opening 1325 may be formed as a square hole as shown in fig. 28.

Further, as shown in fig. 28, the second engaging leg 1322 is provided at a position adjacent to the lower end of the side wall of the second body 1321, the side wall of the second body 1321 located below the second engaging leg 1322 is formed as a guide portion 1327, and the cross-sectional area of the guide portion 1327 in the up-down direction is gradually reduced from top to bottom. Accordingly, the second engaging leg 1322 can be guided to engage with another member by the guide portion 1327, and the assembling efficiency between the second insulating clip 132 and another member can be improved.

Further, as shown in fig. 28, a guiding inclined surface 1328 is provided between the lower end surface of the second hook 1323 and the side wall of the second hook 1323. From this, be convenient for second trip 1323 and other part cooperations, and then improved the assembly efficiency of second insulating buckle 132.

As shown in fig. 28, in a preferred example of the present invention, the boss 1324 has a rectangular cross section in the up-down direction, and the cross sectional area of the boss 1324 in the up-down direction gradually increases from top to bottom. Thereby facilitating mating of the boss 1324 with other components.

As shown in fig. 1 to 4, a dust collection assembly 100 according to an embodiment of the present invention includes: a first annular ring 110, a second annular ring 120, and an insulating snap assembly 130. Wherein, as shown in fig. 2, the dust collection assembly 100 can be connected to a high voltage power supply 500 during use, a high potential terminal of the high voltage power supply 500 is electrically connected to one of the first and second

annular rings

110 and 120, and a low potential terminal of the high voltage power supply 500 is electrically connected to the other. For example, in one example of the present invention, the high potential terminal is electrically connected to the first annular ring 110 through a first electrical connection 113, and the low potential terminal is electrically connected to the second annular ring 120 through a second electrical connection 123. After the first annular ring 110 and the second annular ring 120 are connected with the high-voltage power supply 500, a high-voltage direct-current electric field is formed between any two adjacent surfaces on the first annular ring 110 and the second annular ring 120 which are spaced apart.

It should be noted that the high voltage direct current electric field ionizes gas molecules in the air to generate a large amount of electrons and ions, the electrons and the ions move towards the two poles under the action of the electric field force, and the charged particles touch dust particles and bacteria in the air flow to charge the dust particles and the bacteria in the air flow in the moving process, and the charged particles move towards the opposite pole plate with the air flow under the action of the electric field force. Under the action of the electric field, free ions in the air move towards the two poles, and the higher the voltage and the higher the electric field strength, the faster the movement speed of the ions is. As a result of the movement of the ions, a current is formed between the electrodes. At the beginning, there are fewer free ions in the air and less current. When the voltage rises to a certain value, ions near the discharge electrode obtain higher energy and speed, and when the ions strike neutral atoms in the air, the neutral atoms are decomposed into positive and negative ions, and the phenomenon is called air ionization. After the air is ionized, a chain reaction is generated, so that the number of ions moving between electrodes is greatly increased, which is shown as the sharp increase of the current (called as corona current) between the electrodes, therefore, the air becomes a conductor, the high-voltage catches the attached bacterial particles, and the cell wall composed of protein is instantaneously conductively punctured, thereby achieving the purposes of killing bacteria, adsorbing and removing dust.

Specifically, the first annular ring 110 has a first outer ring 111 and a plurality of first blades 112 circumferentially provided on an inner surface of the first outer ring 111. Optionally, first blades 112 are sheet-like and extend in a radial direction of first outer ring 111. The first annular ring 110 is further provided with a first connection terminal 117, and the first connection terminal 117 is provided radially outside the first outer ring 111.

The second annular ring 120 has a second outer ring 121 and a plurality of second blades 122 circumferentially provided on an inner surface of the second outer ring 121. As shown in fig. 1-4, the second annular ring 120 is disposed below the first annular ring 110, and the plurality of second blades 122 are circumferentially staggered from the plurality of first blades 112. The second annular ring 120 is further provided with a second connection terminal 127, and the second connection terminal 127 is provided radially outside the second outer ring 121. Thus, a plurality of high voltage dc electric fields can be formed between the first and second

annular rings

110 and 120, thereby improving dust removal efficiency of the dust collection assembly 100.

In addition, an airflow channel is formed between the adjacent first blades 112 and second blades 122, and the first blades 112 and second blades 122 which are staggered in the circumferential direction have a rectifying effect on the airflow passing through the dust collection assembly 100, so that the uniformity of the airflow is enhanced, the air inlet pressure and the resistance during flowing of the airflow are further reduced, and the noise generated during flowing of the airflow is further reduced.

The first annular ring 110 has a first electrical connection 113 adapted to be connected to one of the positive and negative poles of the electrical power supply, the first electrical connection 113 being provided on the first connection terminal 117, the second annular ring 120 has a second electrical connection 123 adapted to be connected to the other of the positive and negative poles of the electrical power supply, the second electrical connection 123 being provided on the second connection terminal 127. Thereby, a reliable connection of the first and second

annular rings

110, 120 to the high voltage power supply 500 may be ensured by the first and second

electrical connections

113, 123. When the dust collecting assembly 100 is connected to the high voltage power supply 500, dust, particles, etc. in the air flow passing between the first annular ring 110 and the second annular ring 120 will be captured by the high voltage dc electric field and adsorbed onto the surface of the first annular ring 110 or the second annular ring 120, thereby achieving the purpose of dust removal.

An insulating snap assembly 130 is disposed between the first and second

annular rings

110, 120 and disposes the first and second

annular rings

110, 120 in a spaced apart relationship. In other words, the insulating snap assembly 130 is supported between the first annular ring 110 and the second annular ring 120 such that any point on the first annular ring 110 is not in direct contact with the second annular ring 120. Therefore, when the dust collecting assembly 100 is in use, a high-voltage electric field is formed between the adjacent surfaces of the first annular ring 110 and the second annular ring 120, and the effects of dust collection and sterilization of the dust collecting assembly 100 are further achieved. Preferably, the insulating snap assembly 130 is detachably connected to both the first annular ring 110 and the second annular ring 120, thereby facilitating a user to wipe and clean the dust collection assembly 100 when the dust collection assembly 100 needs to be cleaned.

As shown in fig. 3 and 4, a first insulation clip 131 is mounted on the first outer ring 111 and the second outer ring 121 to connect the first outer ring 111 and the second outer ring 121 at a distance. Therefore, a certain distance can be kept between any point on the first annular ring 110 and the second annular ring 120, and further, when the dust collection assembly 100 is in a working state, air between the first annular ring 110 and the second annular ring 120 is not punctured and does not discharge, so that the stability and the safety of the dust collection assembly 100 are ensured. In addition, the first outer ring 111 and the second outer ring 121 are connected with a space by the first insulating snap 131, so that the assembly process of the dust collection assembly 100 is simplified, the assembly efficiency is improved, and the production cost is reduced.

According to the dust collecting assembly 100 of the embodiment of the present invention, the first insulating clip 131 can be reliably connected between two components by using the first engaging leg 1312 and the first hook 1313 of the first insulating clip 131, and the second insulating clip 132 can be reliably connected between two components by using the second engaging leg 1322, the second hook 1323 and the boss 1324, so that the structure of the first insulating clip 131 is simplified, and the assembly efficiency is improved.

In addition, the first annular ring 110 and the second annular ring 120 are connected at intervals by the insulating buckle assembly 130, so that a plurality of high-voltage direct-current electric fields can be formed between the first annular ring 110 and the second annular ring 120, and the dust removal efficiency of the dust collection assembly 100 is improved. The plurality of first blades 112 and the plurality of second blades 122 have a rectifying effect on the air flow passing through the dust collection assembly 100, thereby enhancing uniformity of the air flow, and further reducing an intake pressure of the air flow and resistance when flowing, thereby reducing noise generated when the air flow flows. Meanwhile, the reliability of the connection between the first annular ring 110 and the second annular ring 120 is improved, the structure of the dust collection assembly 100 is simplified, and the assembly efficiency is improved.

According to one embodiment of the present invention, the shortest distance between the first annular ring 110 and the second annular ring 120 is 2mm or more. In other words, the distance between any point on the first annular ring 110 and the second annular ring 120 is greater than or equal to 2 mm. To ensure that the shortest distance between the first annular ring 110 and the second annular ring 120 is 2mm or more, the first body 131 and the second body 132 have a height of 2mm or more. Therefore, the phenomenon that air is punctured, discharged or short-circuited in the using process of the dust collection assembly 100 can be effectively prevented, so that the working stability of the dust collection assembly 100 is improved, and the safety factor and the dust removal effect of the dust collection assembly 100 are ensured. Preferably, adjacent first blades 112 and second blades 122 are spaced apart by a distance of 2-40 mm. Therefore, the phenomena of air breakdown and discharge of the dust collection assembly 100 in the using process can be further prevented, so that the working stability of the dust collection assembly 100 is further improved, and the safety factor and the dust removal effect of the dust collection assembly 100 are ensured. Meanwhile, the injury caused by the fact that fingers extend between the first blade 112 and the second blade 122 by mistake can also be avoided.

In an alternative example of the invention, as shown in fig. 6, the thickness of the first blades 112 in the circumferential direction of the first annular ring 110 is greater than 0.5mm, i.e. d1 > 0.5 mm. As shown in fig. 8, the width of the first vane 112 in the axial direction of the first annular ring 110 is greater than 5mm, i.e., h1 > 5 mm. As shown in fig. 12, the thickness of the second blade 122 in the circumferential direction of the second annular ring 120 is greater than 0.5mm, i.e., d2 > 0.5 mm. As shown in fig. 14, the width of the second blades 122 in the axial direction of the second annular ring 120 is greater than 5mm, i.e., h2 > 5 mm. Therefore, the purification effect of the dust collection assembly 100 can be ensured, the purification efficiency of the dust collection assembly 100 is improved, and the structure of the dust collection assembly 100 is simplified, so that the structure of the dust collection assembly 100 is more compact and reasonable.

In order to secure the first outer ring 111 and the second annular ring 120 to be spaced apart from each other in consideration of the fact that the first annular ring 110 is located above the second annular ring 120, in the example shown in fig. 5, the first outer ring 111 is connected to the upper ends (in the up-down direction shown in fig. 5) of the first blades 112, whereby the structure of the dust collection assembly 100 can be made more compact and reasonable.

Further, as shown in fig. 5, 6, 8, and 10, first outer ring 111 is connected to the upper end of the radially outer side of first blade 112, and the upper surface of the radially outer side of first blade 112 is higher than the upper surface of the radially inner side thereof. In other words, in the axial direction of the first annular ring 110, the width of the radially outer side of the first blades 112 is larger than the width of the radially inner side thereof. Thereby, the compactness of the dust collection assembly 100 is further improved. Further, as shown in fig. 5 and 7, the lower surfaces of the first blades 112 are all flush and located on the same plane. Thus, the structure of the dust collection assembly 100 can be more neat and compact.

In the example shown in fig. 11-13, the peripheral wall of the second outer ring 121 is provided with a positioning post 1211, so that the first insulating clip 131 is connected to the second outer ring 121. In the example shown in fig. 11, 17-27, at least two first engaging pins 1312 are disposed on the positioning posts 1211 to connect the first body 1311 with the second outer ring 121. As shown in fig. 26, the first engaging legs 1312 abut against the lower end surfaces of the positioning pillars 1211, so that the positioning pillars 1211 are limited between at least two first engaging legs 1312. To facilitate the connection of the first insulating clip 131 with the first outer ring 111, the first clip 1313 extends upward from the upper end of the first body 1311 and is clipped to the edge of the first outer ring 111 to connect the first body 1311 with the first outer ring 111.

To further improve the connection strength between the first insulating clip 131 and the second annular ring 120, in the example shown in fig. 21, a positioning post 1211 is provided at the intersection of the second outer ring 121 and one of the second blades 122.

Further, as shown in fig. 22, an outer side surface of the first body 1311 away from the center of the first outer ring 111 in the vertical direction is formed as an arc-shaped surface, wherein one of the first engaging legs 1312 is engaged to an outer side of the second outer ring 121 and an outer surface thereof is flush with the arc-shaped surface. Therefore, the structural strength of the first insulating buckle 131 can be improved, and the structure of the first insulating buckle 131 is more reasonable.

Further, as shown in fig. 4, the first insulating clips 131 are three and are uniformly distributed in the circumferential direction of the first annular ring 110. Thereby, the connection reliability between the first annular ring 110 and the second annular ring 120 can be ensured.

To facilitate the connection of the first and second

annular rings

110 and 120 to the high voltage power supply 500, a first electrical connector 113 is provided at an end of the first connection terminal 117, and a second electrical connector 123 is provided at an end of the second connection terminal 127. Further, in order to prevent the first connection terminal 117 from contacting the second connection terminal 127, as shown in fig. 3 to 4, and 28 to 29, a second insulation clip 132 is provided between the first connection terminal 117 and the second connection terminal 127 to connect the first connection terminal 117 and the second connection terminal 127 with a space therebetween. Therefore, a certain distance can be kept between the first connecting terminal 117 and the second connecting terminal 127, and the air between the first connecting terminal 117 and the second connecting terminal 127 is not broken down and does not generate electric discharge when the dust collection assembly 100 is in the working state, so that the stability and the safety of the dust collection assembly 100 are ensured.

In the example shown in fig. 5 to 6, 11 to 12, and 28 to 29, in order to facilitate the connection of the second insulating clip 132 with the first connection terminal 117 and the second connection terminal 127, an elastic clip 1172 extends downward from the lower surface of the first connection terminal 117, and the elastic clip 1172 protrudes through the opening and is clipped in the second body 1321.

The first connection terminal 117 has a first engagement hole 1171, and the boss 1324 passes through the first engagement hole 1171; the second connection terminal 127 has a second engaging hole 1271, the second hook 1323 passes through the second engaging hole 1271 and then engages with the bottom surface of the second connection terminal 127, the second hook 1323 abuts against the lower surface of the second connection terminal 127, and the second engaging pin 1322 abuts against the upper surface of the second connection terminal 127. Thus, by clamping the second clamping leg 1322 and the second clamping hook 1323 in the second clamping hole 1271, the movement of the second insulating clamp 132 along the circumferential direction of the second clamping hole 1271 can be limited; by abutting the second engaging leg 1322 against the upper surface of the second connection terminal 127 and abutting the second hook 1323 against the lower surface of the second connection terminal 127, the movement of the second insulating clip 132 in the axial direction of the second engaging hole 1271 can be restricted, and the connection reliability of the second insulating clip 132 with the first connection terminal 117 and the second connection terminal 127 can be improved.

In the example shown in fig. 5-10, the first annular ring 110 may further include: a first inner collar 114. Wherein first inner race 114 is coupled radially inward of the plurality of first blades 112. Thereby, the structure of the first annular ring 110 can be made more stable. Further, as shown in fig. 5 to 6, the first annular ring 110 further includes: a first reinforcing ring 115. Wherein the first reinforcing ring 115 is connected to the inner surface of the first inner ring 114 by a plurality of first reinforcing ribs 116 distributed in the circumferential direction. Thereby, the structural strength of the first annular ring 110 can be further enhanced.

Likewise, in the example shown in fig. 11-15, the radially outer lower surface of the second blade 122 is higher than the radially inner lower surface thereof. In other words, in the axial direction of the second annular ring 120, the width of the radially outer side of the second blades 122 is larger than the width of the radially inner side thereof. The second outer race 121 is connected radially outward of the second blades 122. When the second annular ring 120 is matched with the first annular ring 110, the area of the first blade 112 and the second blade 122 which are adjacent to each other can be further increased, and the area of the high-voltage direct-current electric field formed between the first blade 112 and the second blade 122 which are adjacent to each other is increased, so that the dust removal efficiency of the dust collection assembly 100 can be improved. At the same time, the compactness of the dust collection assembly 100 may be further improved. Further, as shown in fig. 5 and 7, the upper surfaces of the second blades 122 are all flush and located on the same plane. Thus, the structure of the dust collection assembly 100 can be more neat and compact.

In the example shown in fig. 11-15, the second annular ring 120 may further include: and a second inner race 124. Wherein the second inner race 124 is connected to the lower ends of the plurality of second blades 122 on the radially inner side. Thereby, the structure of the second annular ring 120 can be made more stable. Further, as shown in fig. 11-15, the second annular ring 120 may further include: and a second reinforcing ring 125. Wherein the second reinforcing ring 125 is connected to the inner surface of the second inner ring 124 by a plurality of second reinforcing ribs 126 distributed along the circumferential direction. Thereby, the structural strength of the second annular ring 120 can be further enhanced.

To facilitate the assembly of the first annular ring 110 to the second annular ring 120, in the example shown in fig. 1-4, the outer diameter of the first outer ring 111 is equal to or less than the outer diameter of the second outer ring 121.

In addition, in a preferred embodiment of the present invention, the first annular ring 110 and the second annular ring 120 are high internal resistance annular rings, and the surface resistivity of the high internal resistance annular rings is 6 to 10 o 'clock and 12 o' clock per square meter, i.e., the surface resistivity of the high internal resistance annular rings is 10⁶-10¹²Ohm-meter. It should be noted that, when the first annular ring 110 and the second annular ring 120 are made of conductive high internal resistance material, after a human body touches the dust collecting assembly 100, the current flowing through the human body is limited within a safe range, thereby improving the safety of the dust collecting assembly 100. Therefore, a direct-current high-voltage electric field of at least 2000V is formed between the guide vanes of the adjacent first blade 112 and second blade 122, and the dust removal efficiency and the dust removal effect of the dust collection assembly 100 can be further ensured.

It should be noted that, in an example of the present invention, any two adjacent surfaces of the first annular ring 110 are in smooth transition, and any two adjacent surfaces of the second annular ring 120 are in smooth transition, so that the occurrence of the point discharge on the first annular ring 110 or the second annular ring 120 can be effectively avoided, and further, the safety of the dust collecting assembly 100 is improved, and the usability of the dust collecting assembly 100 is enhanced.

The air cleaning apparatus 200 according to an embodiment of the present invention includes: air guide 220 and the dust collecting assembly 100. Wherein, the wind guide 220 is formed into a ring shape and sleeved outside the dust collecting assembly 100, and the outer diameter of the upper end of the wind guide 220 is larger than the outer diameter of the lower end thereof. Therefore, the air flow can be guided to the dust collecting assembly 100, thereby improving the dust removing efficiency of the dust collecting assembly 100 and further improving the working efficiency of the air purifying device 200.

According to the air purification device 200 of the embodiment of the invention, the plurality of high-voltage direct current electric fields can be formed between the first annular ring 110 and the second annular ring 120 by staggering the plurality of second blades 122 and the plurality of first blades 112 in the circumferential direction, so that the dust removal efficiency of the dust collection assembly 100 is improved. In addition, the plurality of first blades 112 and the plurality of second blades 122 have a rectifying effect on the air flow passing through the dust collection assembly 100, thereby enhancing uniformity of the air flow, and further reducing an intake pressure and resistance of the air flow when flowing, thereby reducing noise generated when the air flow flows.

In addition, the first annular ring 110 and the second annular ring 120 are connected at intervals by using the insulating buckle assembly 130, so that a plurality of high-voltage direct-current electric fields can be formed between the first annular ring 110 and the second annular ring 120, the dust removal efficiency of the dust collection assembly 100 is improved, the uniformity of the air flow is enhanced, the air inlet pressure and the resistance in the flowing process of the air flow are further reduced, and the noise generated in the flowing process of the air flow is further reduced. Meanwhile, the connection reliability between the first annular ring 110 and the second annular ring 120 is also improved, the structure of the air cleaning device 200 is simplified, and the assembly efficiency is improved.

According to some embodiments of the present invention, as shown in fig. 4, the wind guide 220 includes: a first wind-guiding turn 221 and a second wind-guiding turn 222. Specifically, the first wind-guiding ring 221 gradually extends upward along an arc shape from inside to outside in the radial direction. For example, in the example shown in fig. 4, the inner diameter of the first air guiding ring 221 increases from bottom to top (in the vertical direction shown in fig. 4). The second wind-guiding ring 222 is connected to the lower end of the first wind-guiding ring 221, and the upper surface of the second wind-guiding ring 222 is located in the same plane. The dust collecting assembly 100 is at least partially located in the first wind guiding ring 221, and the dust collecting assembly 100 is connected with the second wind guiding ring 222. Accordingly, more air flow can be guided into the dust collection assembly 100, thereby improving the working efficiency of the air cleaning device 200. Alternatively, as shown in fig. 3 to 4, the wind guide 220 is coupled to the second outer ring 121 of the dust collection assembly 100.

In the example shown in fig. 30 to 34, the air guide 220 has a third hook 223, the second outer ring 121 extends outward to form a third connection terminal 128, and the third connection terminal 128 has a step surface 1281 matching with the third hook 223. The third hook 223 abuts against the step surface 1281 to restrict the movement of the third connection terminal 128 in the vertical direction (vertical direction as shown in fig. 34).

As shown in fig. 11, the third connection terminal 128 has a cut-out portion 1282 penetrating therethrough in a vertical direction (vertical direction as shown in fig. 11), and a bent plate 1283 extending downward and then bent upward is provided on an inner wall of the cut-out portion 1282, wherein a stepped surface 1281 is provided on an outer side surface of the bent plate 1283. It is understood that the bending plate 1283 has elasticity in a radial direction of the second outer ring 121, and the third hooks 223 include a plate body 2231 extending upward in an axial direction of the air guide 220 and hook protrusions 2232 located at an upper end of the plate body 2231 and protruding toward the bending plate 1283. During the assembly, can install third connecting terminal 128 from top to bottom, the lower part of step surface 1281 offsets with the protruding 2232 of trip of third trip 223 earlier, and bending plate 1283 takes place to deform towards the radial inward direction of second outer lane 121 earlier, and when step surface 1281 offsets with the protruding lower terminal surface of 2232 of trip, bending plate 1283 recovers towards the radial outward direction of second outer lane 121 again. At this time, the hooking protrusion 2232 is engaged with the bending plate 1283. Therefore, the assembling process of the air guide 220 and the dust collection assembly 100 is simplified, and the connection reliability of the air guide 220 and the dust collection assembly 100 is improved.

Further, as shown in fig. 4, the air guide 220 further has a first extending plate 224 extending upward, and the first extending plate 224 is fitted in the notch 1282 and spaced apart from the bent plate 1283 to limit the movement of the third connecting terminal 128 in the circumferential direction of the air guide 220. Further, as shown in fig. 4 and 32, the air guide 220 further has a second extending plate 225 extending upward, and the second extending plate 225 and the first extending plate 224 together define a receiving groove 226 for receiving an outer end of the third connection terminal 128. This can further improve the reliability of connection between the third connection terminal 128 and the air guide 220.

An air conditioner (not shown) according to an embodiment of the present invention includes: a housing and the dust collection assembly 100 described above. Specifically, the housing has a duct to define a path of an air flow through the air conditioner. It will be appreciated that the location of the air duct is not particularly limited, for example, the air duct may be located within the housing. The air duct is provided with an air inlet and an air outlet, and the air flow enters the air duct from the air inlet and is discharged out of the air duct from the air outlet. The dust collecting assembly 100 is disposed in the air duct to purify and remove dust from the air flow entering the air duct. To facilitate cleaning of dust collection assembly 100 by a user, dust collection assembly 100 is positioned adjacent to an air inlet or outlet, taking into account that dust collection assembly 100 requires periodic cleaning. Preferably, the dust collection assembly 100 is positioned adjacent to the air intake opening. From this, can purify the dust removal earlier to the air current that enters into in the wind channel to prevent that particulate matters such as dust from piling up inside the wind channel, the user of being inconvenient in washs.

It should be noted that, the insulating fastening assembly 130 is used to connect the first annular ring 110 and the second annular ring 120 at intervals, so that a plurality of high voltage dc electric fields can be formed between the first annular ring 110 and the second annular ring 120, thereby improving the dust removal efficiency of the dust collection assembly 100. In addition, the plurality of first blades 112 and the plurality of second blades 122 have a rectifying effect on the air flow passing through the dust collection assembly 100, thereby enhancing uniformity of the air flow, and further reducing an intake pressure and resistance of the air flow when flowing, thereby reducing noise generated when the air flow flows.

According to the air conditioner of the embodiment of the invention, the first insulating buckle 131 can be reliably connected between two components by using the first engaging pin 1312 and the first hook 1313 on the first insulating buckle 131, and the second insulating buckle 132 can be reliably connected between two components by using the second engaging pin 1322, the second hook 1323 and the boss 1324, so that the structure of the first insulating buckle 131 is simplified, and the assembly efficiency is improved.

In addition, the first annular ring 110 and the second annular ring 120 are connected at intervals by using the insulating buckle assembly 130, so that a plurality of high-voltage direct-current electric fields can be formed between the first annular ring 110 and the second annular ring 120, the dust removal efficiency of the dust collection assembly 100 is improved, the uniformity of the air flow is enhanced, the air inlet pressure and the resistance in the flowing process of the air flow are further reduced, and the noise generated in the flowing process of the air flow is further reduced. Meanwhile, the connection reliability between the first annular ring 110 and the second annular ring 120 is also improved, the structure of the air conditioner is simplified, and the assembly efficiency of the air conditioner is improved.

To further improve the purification efficiency of the air conditioner, the air conditioner may further include a negative ion emission ionization device (not shown) disposed in the air duct. The negative ion emission ionization device can pre-charge the air flow to make part of dust particles in the air flow charged with negative electricity. The negatively charged dust particles can be rapidly captured by the high voltage dc electric field when passing through the dust collecting assembly 100 with the air flow, thereby further improving the dust removal effect.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. An insulating buckle assembly, comprising:

the first insulation buckle comprises a first body, at least two first clamping pins and a first clamping hook, wherein the at least two first clamping pins extend downwards from the lower end of the first body, and the first clamping hook extends upwards from the upper end of the first body;

a second insulating snap, the second insulating snap comprising: the novel LED lamp holder comprises a second body, a second clamping hook and a boss, wherein the second body is hollow, the top of the second body is provided with an opening, the bottom of the second body is open, second clamping pins extend outwards from two opposite sides of the outer surface of the second body, the second clamping hook extends downwards from the side wall of the second body between the second clamping pins, and the boss extends upwards from the top of the second body.

2. The insulating buckle assembly of claim 1, wherein the first body and the second body have a height of 2mm or greater.

3. The insulating buckle assembly of claim 1, wherein a reinforcing rib is connected between the first body and the first engaging leg.

4. The insulating snap assembly of claim 1, wherein the first snap leg includes three.

5. The insulating snap assembly according to claim 1, wherein the first body has a through hole penetrating the first body in an up-down direction.

6. The insulating buckle assembly of claim 1, wherein the upper end face of the first body comprises:

the first section is positioned on one side far away from the first clamping hook and positioned in a horizontal plane;

the second section is positioned on one side close to the first clamping hook and positioned in the other horizontal plane below the first section;

a connecting segment connected between the first segment and the second segment.

7. The insulating snap assembly according to claim 1, wherein a cross-section of the second body in the up-down direction has a square shape.

8. The insulating snap assembly according to claim 1, wherein a guiding arc is formed between a side wall of the opening and an upper end surface of the second body.

9. The insulating snap assembly of claim 1, wherein the opening is formed as a square hole.

10. The insulating buckle assembly according to claim 1, wherein the second engaging leg is disposed adjacent to a lower end of a sidewall of the second body, the sidewall of the second body located below the second engaging leg is formed as a guiding portion, and a cross-sectional area of the guiding portion in an up-down direction is gradually reduced from top to bottom.

11. The insulating buckle assembly of claim 1, wherein a guiding slope is formed between a lower end surface of the second hook and a side wall of the second hook.

12. The insulating buckle assembly of claim 1, wherein the boss has a rectangular cross-section in the up-down direction, and the cross-sectional area of the boss increases gradually from the top to the bottom.

13. A dirt collection assembly, comprising:

the first annular ring comprises a first outer ring, a plurality of first blades and a first connecting terminal, wherein the plurality of first blades are arranged on the inner surface of the first outer ring along the circumferential direction, and the first connecting terminal is arranged on the radial outer side of the first outer ring;

the second annular ring comprises a second outer ring, a plurality of second blades and second connecting terminals, the second annular ring is arranged below the first annular ring, the plurality of second blades are arranged on the inner surface of the second outer ring along the circumferential direction, the plurality of second blades and the plurality of first blades are arranged in a staggered mode in the circumferential direction, the second connecting terminals are arranged on the radial outer side of the second outer ring, and the second connecting terminals are arranged on the radial outer side of the second outer ring and correspond to the first connecting terminals up and down;

the insulating snap assembly of any one of claims 1 to 12, mounted on the first and second annular rings to connect the first and second annular rings in spaced relation.

14. The dust collecting assembly of claim 13, wherein a positioning post is disposed on a peripheral wall of the second outer ring, the at least two first engaging legs are sleeved outside the positioning post to connect the first body with the second outer ring, and the first engaging hook is engaged with an edge of the first outer ring to connect the first body with the first outer ring.

15. The dirt collection assembly of claim 14, wherein said locating posts are disposed at an intersection of said second outer race and one of said second vanes.

16. The dirt collection assembly of claim 13, wherein an outer side surface of the first body in a vertical direction away from a center of the first outer race is formed as an arcuate surface, and wherein one of the first snap legs snaps onto an outer side of the second outer race with an outer surface thereof flush with the arcuate surface.

17. The dirt collection assembly of claim 13, wherein the first insulating snaps are three and evenly distributed along a circumferential direction of the first annular ring.

18. The dust collection assembly of claim 13, wherein an elastic latch extends downward from a lower surface of the first connection terminal, and the elastic latch extends through the opening and is engaged with the second body;

the first connecting terminal is provided with a first clamping hole, and the boss penetrates through the first clamping hole;

the second connecting terminal is provided with a second clamping hole, the second clamping hook penetrates through the second clamping hole and then is clamped to the bottom surface of the second connecting terminal, the second clamping hook is abutted to the lower surface of the second connecting terminal, and the second clamping foot is abutted to the upper surface of the second connecting terminal.

19. The dirt collection assembly of claim 13, wherein the first annular ring further comprises:

a first inner ring connected radially inward of the plurality of first blades.

20. The dirt collection assembly of claim 19, wherein the first annular ring further comprises:

the first reinforcing ring is connected to the inner surface of the first inner ring through a plurality of first reinforcing ribs distributed along the circumferential direction.

21. The dirt collection assembly of claim 13, wherein the second annular ring further comprises:

a second inner ring connected to a lower end of a radially inner side of the plurality of second blades.

22. The dirt collection assembly of claim 21, wherein the second annular ring further comprises:

and the second reinforcing ring is connected to the inner surface of the second inner ring through a plurality of second reinforcing ribs distributed along the circumferential direction.