CN206201915U - Air cleaning unit and automotive air conditioning device - Google Patents

Abstract

The utility model relates to an air purification device and an automobile air conditioner. The air purification device comprises a negative ion generator, a filter, an electrostatic dust collection plate and an anion brush plate, and the filter, an electrostatic dust collection plate and an anion brush plate The negative ion brush plate is provided with a plurality of brushes on the side close to the electrostatic dust collection plate, and the negative ion generator has an input end and an output end. The output terminal includes a grounding terminal and a negative high voltage terminal, the grounding terminal is electrically connected to the electrostatic dust collecting plate, the negative high voltage terminal is electrically connected to the brush, and the electrostatic dust collecting plate and the negative ion brush plate are electrically connected to each other. There is a space where a voltage field can be formed, the electrostatic dust collection plate is provided with a first ventilation hole communicating with the space, and the negative ion brush plate is provided with a second ventilation hole communicating with the space. The air purification device of the utility model reduces the amount of particles that the electric brush can touch, and effectively improves the service life of the electric brush.

Description

Air purification device and car air conditioning device

technical field

The utility model belongs to the technical field of automobile air conditioners, in particular to an air purification device and an automobile air conditioner.

Background technique

To improve the air quality inside the vehicle, some vehicles have dust reduction devices inside. The dust reducing device first makes the dust in the air positively or negatively charged, and then absorbs the charged dust in the air through a dust suction mechanism whose polarity is opposite to that of the dust. However, the purification effect of this dust device is poor, and it can only purify particles with larger diameters (such as pollen) in the air, but cannot purify particles with smaller diameters (such as PM2.5 particles).

Existing a kind of air cleaning system, it comprises: ion generator; The electric brush that is used for releasing the ion that ion generator produces in the air, electric brush is connected with described ion generator; Dust collection components. The electrostatic dust collection component includes: an electrostatic precipitator with permanent static electricity; and an electrostatic fine filter with permanent static electricity, and the electrostatic fine filter is located between the electrostatic precipitator and the brush. The air purification system has the advantages of good purification effect, can purify particles with smaller diameters, and make the air naturally fresh.

But, above-mentioned air purification system, electrostatic fine filter screen is positioned between electrostatic precipitator and electric brush, promptly electric brush is at the front end of electrostatic fine filter screen, thereby, particulate matter in the air is not filtered by electrostatic fine screen screen, first with Contact with the brush, the brush is prone to failure due to long-term contact and adhesion of a large amount of particles, which leads to the purification effect of the purification system not reaching the design value, the use of the brush is short, and the brush needs to be replaced frequently.

In addition, the above-mentioned air purification system, in a narrow space, only has a negative high-voltage end and cannot continuously generate high-concentration negative ions, and cannot effectively eliminate odors in the car.

Utility model content

The technical problem to be solved by the utility model is aimed at the defect that the electric brush of the existing air purification system is located at the front end of the electrostatic fine filter. , An air purification device is provided.

The technical solution adopted by the utility model to solve the problems of the technologies described above is:

An air purification device is provided, comprising a negative ion generator, a filter, an electrostatic dust collection plate and an anion brush plate, wherein the filter, the electrostatic dust collection plate and the negative ion brush plate are sequentially stacked from the air inlet side to the air outlet side , the negative ion brush plate is provided with a plurality of brushes on one side close to the electrostatic dust collection plate, the negative ion generator has an input terminal and an output terminal, and the output terminal includes a ground terminal and a negative high voltage terminal, so The ground terminal is electrically connected to the electrostatic dust collection plate, the negative high voltage end is electrically connected to the brush, there is a space between the electrostatic dust collection plate and the negative ion brush plate, which can form a voltage field, and the static electricity The dust collecting plate is provided with a first ventilation hole communicating with the space, and the negative ion brush plate is provided with a second ventilation hole communicating with the space.

Further, the brush is columnar, one end of the brush is fixed on the negative ion brush plate, and the other end of the brush extends toward the electrostatic dust collecting plate.

Further, the electrostatic dust collection plate includes a first insulating frame and a metal dust collecting plate arranged in the first insulating frame, the ground terminal is electrically connected to the metal dust collecting plate, and the first ventilation hole Set on the metal dust collection plate.

Further, the first ventilation holes include a plurality of first ventilation holes arranged in an array.

Further, the first air holes further include a plurality of second air holes arranged in an array, and the second air holes are arranged alternately with the first air holes.

Further, the first air hole is a hexagonal hole, and the second air hole is a circular hole.

Further, a ground wire interface electrically connected to the metal dust collecting plate is provided on the first insulating frame, and the ground terminal of the negative ion generator is electrically connected to the ground wire interface.

Further, the negative ion brush plate includes a second insulating frame and a plurality of insulating plates arranged in the second insulating frame, the second ventilation holes are formed between the plurality of insulating plates, each A plurality of the brushes are arranged at intervals along the length direction of the insulating plate, and the brushes are facing the center of the first air hole.

Further, a negative high-voltage wire harness is arranged on one side edge of the second insulating frame, and a negative high-voltage terminal interface electrically connected to one end of the negative high-voltage wire harness is provided on the second insulating frame, and the negative high-voltage wire harness of the negative ion generator The high-voltage end is electrically connected to the interface of the negative high-voltage end. A conductive sheet is arranged inside the insulating plate along its length direction. One end of the conductive sheet is electrically connected to the high-voltage wire harness. The brush is columnar. The bottom end of the brush is electrically connected to the conductive sheet, the top end of the brush protrudes out of the insulating plate toward the metal dust collecting plate, and the top end of the brush is facing the center of the first air hole .

Further, the distance between the tip of the brush and the metal dust collecting plate is 5-20mm.

Further, the air purification device further includes a bracket for accommodating the filter, the electrostatic dust collection plate and the negative ion brush plate, and the bracket has an air outlet hole communicating with the second ventilation hole.

Further, the support includes a first support and a second support connected to the air outlet side of the first support, the bottom of the first support is provided with a mesh ventilation partition, and the first support is provided with a second A slot, the filter is plugged into the first slot and located on the air intake side of the mesh ventilation partition; the second bracket is provided with a second slot, the electrostatic dust collector The board and the negative ion brush board are integrally plugged into the second slot and located on the air outlet side of the mesh ventilation partition.

According to the air purification device of the present utility model, the filter, the electrostatic dust collection plate and the negative ion brush plate are sequentially stacked from the air inlet side to the air outlet side, that is, the filter is at the forefront of the air inlet side of the air purification device, and the negative ion generator The ground terminal and the negative high voltage terminal of the ground are respectively electrically connected with the electrostatic dust collecting plate and the electric brush. In this way, when the air passes through the filter, most of the particles can be filtered out, and the electrostatic dust collection plate can also absorb some particles by relying on static electricity, thereby greatly reducing the number of particles that the brush can touch, effectively improving the service life of the brush and ensuring the The overall purification effect of the air purification device. In addition, due to the extremely high pressure difference and relatively close distance between the electrostatic dust collecting plate and the negative ion brush plate, a voltage field is formed in this space, and then discharge ionized air is generated, and a certain amount of ozone is generated. The generated ozone has Sterilize, decompose VOC and deodorize. At the same time, the brush releases a large amount of electrons into the space to generate a large amount of negative ions in the space, and the generated negative ions can remove inhalable particles in the air.

In addition, the utility model also provides an automobile air-conditioning device, which includes an air-conditioning box and the above-mentioned air purification device, and the air purification device is arranged in the air-conditioning box.

Description of drawings

Fig. 1 is a perspective view of an air cleaning device provided by an embodiment of the present invention;

Fig. 2 is an exploded view of an air purification device provided by an embodiment of the present invention;

Fig. 3 is the connection schematic diagram of its anion separator, electrostatic dust collection plate and anion brush plate of the air purification device provided by an embodiment of the present invention;

Fig. 4 is a top view of the electrostatic dust collecting plate of the air purification device provided by an embodiment of the present invention;

Fig. 5 is a top view of the negative ion brush plate of the air cleaning device provided by an embodiment of the present invention.

The reference signs in the instructions are as follows:

1. Negative ion generator; 11. Input terminal; 12. Output terminal; 121. Ground terminal; 122. Negative high voltage terminal; 2. Filter; 3. Electrostatic dust collection plate; 31. The first ventilation hole; 311. The first Air hole; 312, second air hole; 32, first insulating frame; 33, metal dust collecting plate; 34, ground wire interface; 4, negative ion brush plate; 41, electric brush; 42, second air hole; 43 , second insulating frame; 44, insulating plate; 45, negative high-voltage harness; 46, negative high-voltage end interface; 47, conductive sheet; 5, bracket; 51, first bracket; 511 mesh ventilation partition; 512, first Slot; 52, the second bracket; 521, the second slot; 522, the air outlet.

detailed description

In order to make the technical problems, technical solutions and beneficial effects solved by the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

As shown in Figures 1 to 5, the air purification device provided by an embodiment of the utility model includes an anion generator 1, a filter 2, an electrostatic dust collecting plate 3 and an anion brush plate 4, the filter 2, the electrostatic Dust collecting plate 3 and negative ion brush plate 4 are successively stacked from the air inlet side (i.e. the upper side in Fig. 1) to the air outlet side (i.e. the lower side in Fig. 1), A plurality of brushes 41 are provided on one side of the electrostatic dust collecting plate 3 .

In this embodiment, the brush 41 may be a metal brush or a carbon brush.

In this embodiment, the filter 2 can be a high-efficiency filter (HEPA), the filter is a cuboid structure, and the central part is a folded non-woven fabric, which is tightly connected with the surrounding hard edge strips by hot melt adhesive to keep the product as a whole shape. High-efficiency filters (HEPA) mainly intercept particulate matter in the airflow through mesh-like laminated fibers, and can efficiently remove particulate matter with a particle size of 1 μm or more.

As shown in Figure 1 and Figure 2, the main part of the negative ion generator 1 is a cube, in which electronic components are placed to generate negative high voltage, the electronic components are placed in a plastic case and sealed with glue, and the main part leads out two wire harnesses , one is the input terminal 11 (including positive and negative pole lines), input low-voltage power (such as 12V direct current), and the other is the output terminal 12, the output terminal 12 includes a ground terminal 121 and a negative high-voltage terminal 122, the ground terminal 121 is electrically connected to the electrostatic dust collection plate 3 so that the voltage of the electrostatic dust collection plate is 0. The negative high voltage terminal 122 is electrically connected to the brush 41 so that the voltage of the brush is the negative high voltage generated by the negative ion generator 1 . In this way, a voltage field is formed in the space between the electrostatic dust collecting plate 3 and the negative ion brush plate 4, the electrostatic dust collecting plate 3 is provided with a first ventilation hole 31 communicating with the space, and the negative ion The brush plate 4 is provided with a second ventilation hole 42 communicating with the space. In this way, the airflow can pass through the filter 2 , the electrostatic dust collecting plate 3 and the negative ion brush plate 4 sequentially from top to bottom.

Negative ion generator 1 converts the input low-voltage electricity into negative high-voltage output through the internal voltage transformation components, and then charges the particles in the airflow through the negative high-voltage electricity. The charged particles are more likely to be captured and adsorbed by the electric field, or Particles are aggregated into larger groups and then intercepted by filter 2 and settled naturally.

As shown in Figures 1 to 4, the electrostatic dust collection plate 3 includes a square first insulating frame 32 and a metal dust collecting plate 33 arranged in the first insulating frame 32, on the first insulating frame 32 A ground wire interface 34 electrically connected to the metal dust collecting plate 33 is provided, and the ground terminal 121 of the negative ion generator 1 is electrically connected to the ground wire interface 34 through a connector.

In this embodiment, the first ventilation hole 31 is disposed on the metal dust collecting plate 33 . As shown in FIG. 4 , the first ventilation hole 31 includes a plurality of hexagonal first air holes 311 arranged in an array and a plurality of circular second air holes 312 arranged in an array. The second air holes 312 are arranged alternately with the first air holes 311 . The plurality of hexagonal first air holes 311 arranged in an array has a high space utilization rate, so that the ventilation area of the first air holes 31 is as large as possible, and the ventilation wind resistance of the electrostatic dust collecting plate 3 is small. The plurality of circular second air holes 312 arranged in an array can further increase the ventilation area of the first ventilation holes 31 and further reduce the air resistance of the electrostatic dust collecting plate 3 .

In this embodiment, the metal dust collecting plate 33 may be, for example, an aluminum alloy plate.

In addition, in other embodiments, the first air hole 311 may also be in other shapes, such as a square hole, a circular hole, and the like. Likewise, the second air holes 312 may also be in other shapes, such as square holes, hexagonal holes, and the like. Of course, in some embodiments, the second through hole 312 can also be omitted.

As shown in Figure 5, in the present embodiment, the negative ion brush plate 4 includes a square second insulating frame 43 and a plurality of insulating plates 44 arranged in the second insulating frame 43, the second ventilation hole 42 is formed between a plurality of said insulating plates 44 .

In the present embodiment, like this, the edge of the first insulating frame 32 and the second insulating frame 43 are butted, and connected as a whole by screws, to form a square dust accumulation space between the electrostatic dust collecting plate 3 and the negative ion brush plate 4, A voltage field is generated in this space.

As shown in FIG. 5 , a plurality of brushes 41 are arranged on each insulating plate 44 along its length, and the brushes 41 are facing the center of the first air hole 311 . Negative ions are released by the brushes 41 to charge the particles in the air to form a voltage difference (voltage field) in the space between the electrostatic dust collecting plate 3 and the negative ion brush plate 4 . In addition, the distance between the electric brush 41 and the metal dust collecting plate 33 is controlled in the interval of 5-20 mm, so that excessive discharge between the electrostatic dust collecting plate 3 and the negative ion brush plate 4 is prevented, and excessive ozone is prevented.

As shown in FIG. 5 , a negative high-voltage wire harness 45 is provided on one edge of the second insulating frame 43 , and a negative high-voltage terminal interface 46 electrically connected to one end of the negative high-voltage wire harness 45 is provided on the second insulating frame 43 , the negative high-voltage end 122 of the negative ion generator 1 is electrically connected to the negative high-voltage end interface 46 through the form of a connector, and a conductive sheet 47 is arranged in the insulating plate 44 along its length direction, and the conductive sheet 47 One end is electrically connected with the high voltage wire harness 45 . As shown in FIG. 1 and FIG. 5 , the brush 41 is columnar, and the axis of the brush 41 passes through the center of the first air hole 311 . The brush 41 is columnar, the bottom end of the brush 41 is electrically connected to the conductive sheet 47, and the top end of the brush 41 protrudes outside the insulating plate 44 toward the metal dust collecting plate 33 , and the top of the brush 41 is facing the center of the first air hole 311 . After the air passes through the first air hole 311, it fully passes through the top of the brush 41, and the negative ions radiate outward with the top of the brush 41 as the center of the sphere, and the particles in the air fully contact with the negative ions to improve the purification effect.

In this embodiment, the conductive sheet 47 may be a printed circuit board, and the bottom of the brush 41 is welded on the copper wire of the printed circuit board. Of course, the conductive sheet 47 can also be a copper sheet, and the bottom of the brush 41 is welded on the copper sheet.

In this embodiment, the first insulating frame 32 , the second insulating frame 43 and the insulating plate 44 are all plastic parts.

In addition, as shown in FIGS. 1 and 2 , the air purification device further includes a bracket 5 for accommodating the filter 2 , the electrostatic dust collection plate 3 and the negative ion brush plate 4 .

As shown in Figures 1 and 2, the bracket 5 includes a first bracket 51 and a second bracket 52 connected to the air outlet side of the first bracket 51 through buckles or other fasteners. The bottom of the bottom is provided with a mesh ventilation partition 511, the first bracket 51 is provided with a first slot 512, the filter 2 is plugged into the first slot 512 and is located in the mesh ventilation partition The air inlet side of the plate 511; the second bracket 52 is provided with a second slot 521, the electrostatic dust collecting plate 3 and the negative ion brush plate 4 are connected by screws, and are integrally plugged into the second slot 521, so that the electrostatic dust collecting plate 3 and the anion brush plate 4 are integrally located on the air outlet side of the mesh ventilation partition 511, and the air outlet side of the second support 52 has a connection with the anion brush plate 4. The air outlet hole 522 communicated with the second ventilation hole 42 . Thus, the air flow enters from the air inlet side of the filter 2 , passes through the electrostatic dust collecting plate 3 and the negative ion brush plate, and then flows out from the air outlet hole 522 .

According to the air purification device of the above-mentioned embodiments of the utility model, the filter, the electrostatic dust collection plate and the negative ion brush plate are stacked successively from the air inlet side to the air outlet side, that is, the filter is at the forefront of the air inlet side of the air purification device, The ground terminal and the negative high voltage terminal of the negative ion generator are electrically connected with the electrostatic dust collecting plate and the electric brush respectively. In this way, when the air passes through the filter, most of the particles can be filtered out, and the electrostatic dust collection plate can also absorb some particles by relying on static electricity, thereby greatly reducing the number of particles that the brush can touch, effectively improving the service life of the brush and ensuring the The overall purification effect of the air purification device. In addition, due to the extremely high pressure difference and relatively close distance between the electrostatic dust collecting plate and the negative ion brush plate, a voltage field is formed in this space, and then discharge ionized air is generated, and a certain amount of ozone is generated. The generated ozone has Sterilize, decompose VOC and deodorize. At the same time, the brush releases a large amount of electrons into the space to generate a large amount of negative ions in the space, and the generated negative ions can remove inhalable particles in the air.

In addition, another embodiment of the present utility model also provides an automobile air conditioner, which includes an air conditioner box and the above-mentioned air purification device, and the air purification device is arranged in the air conditioner box.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (13)

1. a kind of air cleaning unit, it is characterised in that including anion generator, filter, electrostatic dust collecting plate and anion Brush plate, the filter, electrostatic dust collecting plate and negative ion electrospray brush board are cascading by the lateral air side of air intake, described negative Side on ion brush plate near the electrostatic dust collecting plate is provided with multiple brushes, and the anion generator has input And output end, the output end include earth terminal and negative high-voltage end, the earth terminal is electrically connected with the electrostatic dust collecting plate, described Negative high-voltage end is electrically connected with the brush, and having between the electrostatic dust collecting plate and negative ion electrospray brush board can form the sky of voltage field Between, the electrostatic dust collecting plate is provided with the first air vent communicated with the space, and the negative ion electrospray brush board is provided with and the sky Between connect the second air vent.

2. air cleaning unit according to claim 1, it is characterised in that the brush is in the form of a column, the one of the brush End is fixed on negative ion electrospray brush board, and the other end of the brush extends to electrostatic dust collecting plate.

3. air cleaning unit according to claim 1, it is characterised in that the electrostatic dust collecting plate includes the first insulation side Frame and the metal collecting plate being arranged in first insulating frame, the earth terminal are electrically connected with the metal collecting plate, institute The first air vent is stated to be arranged on the metal collecting plate.

4. air cleaning unit according to claim 3, it is characterised in that first air vent includes array arrangement Multiple first air holes.

5. air cleaning unit according to claim 4, it is characterised in that first air vent also includes array arrangement Multiple second air holes, second air holes setting alternate with first air holes.

6. air cleaning unit according to claim 5, it is characterised in that first air holes is hexagonal hole, described Second air holes is circular port.

7. air cleaning unit according to claim 3, it is characterised in that be provided with first insulating frame and institute The interface of the ground wire of metal collecting plate electrical connection is stated, the earth terminal of the anion generator is electrically connected with the interface of the ground wire.

8. air cleaning unit according to claim 4, it is characterised in that the negative ion electrospray brush board includes the second insulation Frame and the multiple insulation boards being arranged in second insulating frame, second air vent are formed in multiple insulation boards Between, multiple brushes are arranged at intervals with each insulation board along its length, the brush is just to described first The center of air holes.

9. air cleaning unit according to claim 8 a, it is characterised in that lateral edges of second insulating frame set Negative high voltage wire harness is put, the negative high voltage termination electrically connected with one end of the negative high voltage wire harness is provided with second insulating frame Mouthful, the negative high-voltage end of the anion generator is electrically connected with the negative high-voltage end interface, square along its length in the insulation board To conducting strip is provided with, one end of the conducting strip electrically connects with the high-voltage wiring harness, and the brush is in the form of a column, the brush Bottom is connected electrically on the conducting strip, outside the top of the brush protrudes the insulation board towards the metal collecting plate, And the top of the brush is just to the center of first air holes.

10. air cleaning unit according to claim 9, it is characterised in that the top of the brush and the metal collection The distance of dirt plate is 5-20mm.

11. air cleaning unit according to claim 1-10 any one, it is characterised in that the air cleaning unit Also include accommodating the support of the filter, electrostatic dust collecting plate and negative ion electrospray brush board, the support has logical with described second The exhaust vent of air holes connection.

12. air cleaning units according to claim 11, it is characterised in that the support includes first support and connection In the second support of the first support air side, the bottom of the first support is provided with netted plenum partitions, described first The first slot is provided with support, the filter is plugged in first slot and entering positioned at the netted plenum partitions Wind side；The second slot is provided with the second support, the electrostatic dust collecting plate and negative ion electrospray brush board are integrally plugged in described In second slot, and positioned at the air side of the netted plenum partitions.

13. a kind of automotive air conditioning devices, it is characterised in that including the sky described in air conditioning box body and claim 1-12 any one Air purifying apparatus, the air cleaning unit is arranged in the air conditioning box body.