CN204699830U - A kind of air purifier - Google Patents

Abstract

An air purifier, which includes a housing with an air inlet and an air outlet, a fan and a high-voltage electrostatic adsorption unit arranged in the housing, wherein the air inlet is located on the rear side of the housing, and the air outlet is located on the front side of the housing. It is characterized in that: the front side of the housing is located at the position of the air outlet and is provided with a negative ion emitting head, and the negative ion emitting head is connected with the circuit output end of the negative ion device. The utility model cancels the carbon brush and the steel ring in the original ionization unit, and sets the anion emitting head at the air outlet of the casing, avoiding that the original ionization unit is placed in front of the air inlet, which may cause the fan circuit board to be damaged. The risk of high voltage shock damage not only makes the structure simpler and more reasonable, but also makes the use safer and more reliable. In addition, negative ions will exist in the air for several minutes, making the air fresh and purifying, and at the same time making the indoor air negatively charged. The electrostatic adsorption unit is adsorbed.

Description

an air purifier

technical field

The utility model belongs to the technical field of air purification devices, in particular to an air purifier.

Background technique

Air purification devices refer to products that can absorb, decompose or transform various air pollutants, including dust, odor, etc., and effectively improve air cleanliness. With the improvement of people's quality of life, more and more families begin to use air purification Installation, especially in renovated interiors and offices and air-conditioned rooms with many people.

Most of the existing air purifiers are filter air purifiers, and there is also a type of electrostatic precipitator air purifier, which uses the principle of high-voltage electrostatic adsorption to remove particulate pollutants in the air. , the suspended particles that can be filtered out, the efficiency can reach 85-95%, no need to replace the filter screen, and the air filtration capacity is acceptable. Its disadvantages: if the surface of the integrated chamber of this air purifier starts to accumulate particles, the filter effect will be rapidly and greatly reduced, and frequent maintenance is required. When the integrated board is dirty, it will make a crackling sound and is easy to be damaged. This filtering method will generate ozone, which is irritating to human respiratory organs.

After investigation, the existing patent No. CN201320412978.X is a Chinese utility model patent "A Air Purifier", which includes a housing, a high-voltage electrostatic adsorption unit and a front ionization unit, which is characterized in that the front ionization unit The unit structure is to set two serrated metal sheets on the left and right sides of the front position of the air duct, and connect positive DC high voltage to the serrated metal sheet. The positive DC high voltage output of the high voltage generator is connected to the two serrated metal sheets, thus a Electrostatic ionization field; or the structure of the front ionization unit is to set a carbon brush in front of the air duct, followed by a ring of steel ring, the positive DC high voltage output of the high voltage generator is connected to the carbon brush, and the steel ring is grounded. Thus, an arc-shaped electrostatic ionization field is formed between the carbon brush and the steel ring. The high-voltage generator is a high-voltage generator with a voltage output of KV level and a current output of uA level. This kind of air purifier can control the emission of ozone in an extremely low and almost negligible range, so it does not need an ozone module and simplifies the structure, but its ionization unit is front-mounted, and the carbon brush is installed at the air inlet position, an arc-shaped electrostatic ionization field is formed between the carbon brush and the steel ring. The advantage of this is that the particles in the ionized air can be fully utilized at the air inlet, but its disadvantage is that a large number of charged particles will be gathered on the fan, and static electricity may The risk of damaging the fan circuit board.

Contents of the invention

The technical problem to be solved by the utility model is to provide an air purifier with simple and reasonable structure, safe and reliable use in view of the above-mentioned technical status quo.

The technical solution adopted by the utility model to solve the above technical problems is: an air purifier, which includes a housing with an air inlet and an air outlet, a fan and a high-voltage electrostatic adsorption unit arranged in the housing, wherein the air inlet is located in the housing The rear side of the body, the air outlet is positioned at the front side of the casing, and it is characterized in that: the front side of the casing is positioned at the position of the air outlet to be provided with a negative ion emitter, and the negative ion emitter is connected with the circuit output end of the negative ion device.

As an improvement, after the dust-collecting metal plates of the high-voltage electrostatic adsorption unit are intersected and stacked at intervals, the odd-numbered layers of dust-collecting metal plates are connected in parallel at the left end to form the first input end, and the even-numbered layers of dust-collecting metal plates are connected in parallel at the right end. Connect them together to form the second input terminal. The first input terminal and the second input terminal are respectively connected to positive DC high voltage, negative DC high voltage or ground, thereby forming a parallel electrostatic field between layers of dust-collecting metal plates.

As an improvement, the positive DC high-voltage output terminal of the high-voltage generator is connected to the first input terminal of the high-voltage electrostatic adsorption unit, and the negative DC high-voltage output terminal or ground is connected to the second input terminal of the high-voltage electrostatic adsorption unit.

Further improvement, the fans are two direct current fans, which are arranged up and down in the casing near the air outlet, and the high-voltage electrostatic adsorption unit is arranged at the rear of the fan near the air inlet of the casing.

Finally, the anion emitting head adopts a rectangular metal plate.

Compared with the prior art, the utility model has the advantages of setting the anion emitting head at the air outlet of the housing, canceling the carbon brush and steel ring in the original ionization unit, and avoiding the preposition of the original ionization unit At the air inlet, there may be a risk that the circuit board of the fan will be damaged by high voltage, which not only makes the structure simpler and more reasonable, but also makes the use safer and more reliable. In addition, negative ions will exist in the air for several minutes, making the air fresh and purifying. At the same time, the indoor air is charged with negative charge, which is absorbed by the high-voltage electrostatic adsorption unit, and the structure is more reasonable and reliable.

Description of drawings

Fig. 1 is the structural representation of air purifier before improvement;

Fig. 2 is a structural schematic diagram of an embodiment of the utility model.

Detailed ways

The utility model is described in further detail below in conjunction with the accompanying drawings.

As shown in Figure 1, it is an air purifier before improvement, that is, the air purifier with patent number 201320412978. , the front ionization unit 4 is provided with a carbon brush 4.3 in front of the air duct, followed by a ring of steel ring 4.4, the positive DC high voltage output of the high voltage generator is connected to the carbon brush 4.3, and the steel ring 4.4 is grounded. Thus an arc-shaped electrostatic ionization field is formed between the carbon brush 4.3 and the steel ring 4.4. The high-voltage generator is a high-voltage generator with a voltage output of KV level and a current output of uA level.

As shown in Figure 2, the air purifier of this embodiment has made reasonable improvements to the above air purifier, and it includes a housing 1 with an air inlet and an air outlet, a fan 2, a high-voltage electrostatic adsorption unit 3 and negative ions Emitting head 5, wherein the air inlet is located at the rear side of the housing 1, the air outlet is located at the front side of the housing 1, the fan 2 and the high-voltage electrostatic adsorption unit 3 are arranged in the housing 1, and the fan 2 is two DC fans, respectively , and the bottom is arranged at one end of the housing 1 close to the air outlet, and the high-voltage electrostatic adsorption unit 3 is arranged at the rear of the fan 2 near the air inlet of the housing 1. The high-voltage electrostatic adsorption unit 3 is connected with the high-voltage generator, and the anion emitting head 5 is arranged on the front side of the housing 1 at the position of the air outlet, and is connected to the circuit output end of the negative ion device. The negative ion emitting head 5 can be a rectangular metal plate; The odd-numbered dust-collecting metal plates 3.1 are connected in parallel at the left end to form the first input end, and the even-numbered dust-collecting metal plates 3.2 are connected in parallel at the right end to form the second input end. The input ends are respectively connected to positive DC high voltage, negative DC high voltage or grounding, so that a parallel electrostatic field is formed between layers of dust-collecting metal plates, and the layers of dust-collecting metal plates are fixed in the housing 1 through the fixing seat 6. There is a gap for clamping the dust-collecting metal plate inside. When the charged dust particles pass through the electrostatic field, they will be adsorbed by the opposite polarity plate under the action of Coulomb force, so as to achieve the effect of dust removal and purification. The structure of the high-voltage electrostatic adsorption unit 3 in this embodiment is consistent with that of the patent 201320412978.X before improvement, and its working principle will not be repeated.

In this embodiment, the carbon brush 4.3 and the steel ring 4.4 in the original ionization unit 4 are canceled, and the anion emitting head 5 is arranged at the air outlet of the housing 1, which effectively avoids the original ionization unit 4 being placed in front of the air inlet. , it may lead to the risk of the fan circuit board being damaged by high voltage, which makes the structure simpler and more reasonable, and the use is safer and more reliable, and the negative ions will exist in the air for several minutes, which makes the air fresh and the purification effect is good, and at the same time makes the indoor air dusty. The negative charges are charged and absorbed by the high-voltage electrostatic adsorption unit.

Claims (4)

1. an air purifier, it comprises the housing with air inlet and air outlet, be arranged on the blower fan in housing and high-pressure electrostatic absorbing unit, wherein air inlet is positioned at the rear side of housing, air outlet is positioned at the front side of housing, it is characterized in that: the position that the front side of described housing is positioned at air outlet is provided with a negative ion emission head, and this negative ion emission head is connected with the circuit output end of negative ion device.

2. air purifier according to claim 1, it is characterized in that: described high-pressure electrostatic absorbing unit is after the superposition of control of dust metallic plate space crossings, odd-level control of dust metallic plate is connected in parallel at left-end point and connects, form first input end, even level control of dust metallic plate at right end and downlink connection get up, form the second input, first input end, the second input access positive direct-current high pressure, negative dc high voltage or ground connection respectively, thus are forming parallel electrostatic field between control of dust metallic plate layer by layer.

3. air purifier according to claim 1 and 2, it is characterized in that: described blower fan is two DC fans, go to upper and lower the one end be arranged near air outlet in housing respectively, high-pressure electrostatic absorbing unit is arranged on the rear portion of blower fan near the position of housing air inlet.

4. air purifier according to claim 1, is characterized in that: described negative ion emission head adopts rectangular metallic plate.