JP2018008239A - Filter unit, air conditioner and filter recharging method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filter unit capable of recharging a filter together with a deep part of the filter and sufficiently recovering a collection rate, and to provide an air conditioner and a filter recharging method.SOLUTION: A filter unit includes: a filter constituted of a plurality of sorts of fiber; an insertion member inserted into the filter; and a vibration part for vibrating the insertion member and the filter relatively to each other.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a filter unit that collects dust, an air conditioner, and a filter recharging method.

  As one of means for collecting fine particles in the air in an air conditioner, a nonwoven fabric charging filter is used. The electrification filter realizes an excellent collection rate of fine particles while keeping the pressure loss low by an electrostatic collection mechanism having a charge fixed on the fiber surface in addition to a mechanical collection mechanism. It is. Charging filters are classified into corona charging filters, friction charging filters, etc., depending on the charging method at the time of manufacture. Since these charging methods have different dust collection characteristics and costs, they are selectively used according to dust collection performance and cost conditions required from the equipment to be mounted. In recent years, friction charging filters that can obtain a constant collection rate with low pressure loss have attracted attention for use in air conditioners that are strongly required to reduce the pressure loss of dust collection for the purpose of energy saving.

  The electrification filter loses its electric polarization due to dust and water adhering to the fiber during use, and thus the collection rate is lowered. Therefore, a technique is known in which the filter is rubbed and recharged to recover the collection rate to the collection rate at the time of initial production.

  As a conventional recharging technique, there is a technique in which a filter is sandwiched between a pair of charging brushes, a pair of charging brushes are rotated in opposite directions, and the surface of the filter is rubbed to perform recharging (see, for example, Patent Document 1). .

Japanese Patent No. 5630600

  However, in the technique of Patent Document 1, since the surface of the filter is frictionally charged by rubbing with a charging brush, only the surface of the filter can be rubbed, and the deep part of the filter cannot be rubbed sufficiently. For this reason, there is a problem that charging is partial and sufficient recovery of the collection rate cannot be obtained.

  The present invention has been made to solve the above-described problems, and a filter unit and an air conditioner that can recharge a filter including the deep part of the filter and can sufficiently recover the collection rate. It is another object of the present invention to provide a filter recharging method.

  The filter unit according to the present invention includes a filter composed of a plurality of types of fibers, an insertion member inserted into the filter, and a vibration portion that relatively vibrates the insertion member and the filter. It is.

  An air conditioner according to the present invention includes the above-described filter unit.

  The filter recharging method according to the present invention is a method in which a plurality of types of fibers are moved and frictionally charged by relatively vibrating an insertion member and a filter inserted into a filter composed of a plurality of types of fibers. is there.

  According to the present invention, the filter including the deep part of the filter can be recharged by vibrating the insertion member protruding into the filter to move the fibers, and the collection rate can be sufficiently recovered.

It is a perspective view of the filter unit which concerns on Embodiment 1 of this invention. It is the figure which showed collectively the schematic sectional drawing and the one part enlarged view of the filter unit which concern on Embodiment 1 of this invention. It is the figure which showed collectively the schematic sectional drawing and the one part enlarged view of the filter of the filter unit which concerns on Embodiment 1 of this invention. It is an assembly drawing of the filter unit which concerns on Embodiment 1 of this invention. It is a schematic sectional drawing of the air conditioner provided with the filter unit which concerns on Embodiment 1 of this invention. It is the flowchart which showed the operation | movement procedure from collection of the particle | grains to recharging in the filter unit which concerns on Embodiment 1 of this invention. It is a figure which shows the evaluation result of the dust collection performance of the filter unit which concerns on Embodiment 1 of this invention. It is a figure which shows the other modification of the barb of the insertion member of the filter unit which concerns on Embodiment 1 of this invention. It is a schematic sectional drawing which shows the structure of the filter unit which concerns on Embodiment 2 of this invention. It is the flowchart which showed the operation | movement procedure from the collection of particles in the filter unit which concerns on Embodiment 2 of this invention to recharging. It is a schematic sectional drawing which shows the structure of the filter unit which concerns on Embodiment 3 of this invention.

  Hereinafter, a preferred embodiment of a filter unit according to the present invention will be described with reference to the drawings. In the following description, the filter unit and the filter recharging method will be mainly described. In addition, the same or corresponding parts in each drawing will be described with the same reference numerals.

Embodiment 1 FIG.
FIG. 1 is a perspective view of a filter unit according to Embodiment 1 of the present invention. FIG. 2 is a diagram collectively showing a schematic cross-sectional view and a partially enlarged view of the filter unit according to Embodiment 1 of the present invention. FIG. 3 is a diagram collectively showing a schematic cross-sectional view and a partially enlarged view of the filter of the filter unit according to Embodiment 1 of the present invention. In FIG. 1 and FIG. 2, white arrows indicate the direction of ventilation.

  The filter unit 1 includes a filter 10 that is a processing target for performing a recharging process, and a housing 20 that houses the filter 10 therein. The filter 10 is a rectangular sheet-shaped frictional charging filter, and is composed of a nonwoven fabric. As shown in FIGS. 2 and 3, the filter 10 has a two-layer structure of a sheet-like charging material 11 and a sheet-like support material 12.

  The charging material 11 is obtained by entanglement of the first fibers 11a and the second fibers 11b having friction charging properties with a needle punch and friction charging. For the first fiber 11a, for example, a polyolefin-based long fiber such as PAN (Polyacrylonitrile) is used. For the second fiber 11b, for example, an acrylic long fiber such as PP (Polypropylene) is used. The support material 12 has the same outer shape as that of the charging material 11, and is configured by forming a short fiber such as PET (Polyethylene terephthalate) into a non-woven fabric. And the filter 10 is produced by bonding the charging material 11 to the support material 12 having a structural support force by a chemical bond method or the like.

  The housing 20 includes a metal frame member 21 that covers the outer periphery of the filter 10 and a wire mesh 22 as a vent member attached to the frame member 21 so as to sandwich the filter 10 from both sides. Hereinafter, the wire mesh 22 on the downstream side in the ventilation direction may be distinguished from the wire mesh 22a, and the wire mesh on the upstream side in the ventilation direction may be distinguished from the wire mesh 22b. As shown in FIG. 2, the wire mesh 22a is attached to the frame member 21 via a shaft 31, and the wire mesh 22b is fixed to the frame member 21 with screws (not shown).

  A first vent 23a is formed between the stitches of the wire mesh 22a, and a second vent 23b is formed between the stitches of the wire mesh 22b. A plurality of insertion members 25 with hook-shaped barbs 24 (returned) at the tip are distributed in the surface direction of the filter 10 on the side of the wire mesh 22 facing each filter 10. The insertion member 25 is made of PP, for example. The insertion member 25 is inserted into the filter 10 such that the barb 24 engages with the first fiber 11 a and the second fiber 11 b of the charging material 11 of the filter 10. The term “engagement” here includes not only the state in which the barb 24 is caught by the first fiber 11a and the second fiber 11b but also the state in which the barb 24 is in contact with the first fiber 11a and the second fiber 11b. It is a waste. Hereinafter, the insertion member 25 provided on the wire mesh 22a may be distinguished from the insertion member 25a, and the insertion member 25 provided on the wire mesh 22b may be distinguished from the insertion member 25b.

  A vibration part 30 that is a vibration motor is attached to the wire mesh 22a. By vibrating the vibration part 30, the wire mesh 22a and the insertion member 25a are moved in the XY axis direction and the Z axis in FIG. Vibrate in the direction. The X direction is the ventilation direction, the thickness direction of the filter 10, the Y direction is a direction perpendicular to the X direction, and the Z direction is a direction perpendicular to the Y direction and perpendicular to the X direction. The vibration unit 30 is electrically connected to the control device 108, and the operation is controlled by the control device 108. In addition, the vibration direction of the insertion member 25 may be any one of the X direction, the Y direction, and the Z direction, or may be a plurality of directions, and does not limit the vibration direction.

FIG. 4 is an assembly diagram of the filter unit according to Embodiment 1 of the present invention.
When assembling the filter unit 1, the frame material 21 is first attached to the outer periphery of the filter 10, and then the wire mesh 22 is attached so as to sandwich the filter 10 from both sides thereof, whereby the filter unit 1 is assembled. At this time, the insertion member 25a provided on the wire mesh 22a is inserted into the charging material 11 of the filter 10, and the barb 24 at the tip of the insertion member 25a is engaged with the first fiber 11a and the second fiber 11b of the charging material 11. To do. Also in the wire mesh 22b, the barb 24 at the tip of the insertion member 25b penetrates the support material 12 and reaches the charging material 11, and engages with the first fiber 11a and the second fiber 11b of the charging material 11. Thereby, in the state in which the filter unit 1 is assembled, each barb 24 of the insertion members 25a and 25b is configured to be engaged with the first fibers 11a and the second fibers 11b of the charging material 11.

FIG. 5 is a schematic cross-sectional view of an air conditioner including the filter unit according to Embodiment 1 of the present invention.
The air conditioner main body 100a of the air conditioner 100 includes a casing 103 having a base 101 attached to a wall surface and a front grille 102 attached to the front surface of the base 101 so as to be detachable and openable. . A suction port 104 for sucking room air is formed on the upper surface of the base 101. In addition, an air outlet 105 that blows air into the room is formed on the lower side of the housing 103.

  A heat exchanger 106 and a fan 107 that blows air to the heat exchanger 106 are provided inside the housing 103. The filter unit 1 shown in FIG. 1 is provided on the air upstream side of the heat exchanger 106 to remove dust and the like from the air flowing into the heat exchanger 106. Although the filter unit 1 is not shown in detail in FIG. 1, the filter unit 1 is a housing such that the second vent 23 b faces the suction port 104 and the first vent 23 a faces the heat exchanger 106. 103.

  The air conditioner 100 includes a refrigeration cycle in which a heat exchanger 106 and a compressor or the like mounted on an outdoor unit (not shown) are sequentially connected by piping, and refrigerant is contained in the refrigeration cycle. The air is circulated and heat exchanged with the indoor air by the heat exchanger 106, whereby the temperature-adjusted air is blown into the room to air-condition the room (cooling or heating).

  The air conditioner 100 is further provided with a control device 108 that controls the entire air conditioner, such as control of the vibration unit 30 of the filter unit 1. The control device 108 can be configured by hardware such as a circuit device that realizes the function, or can be configured by an arithmetic device such as a microcomputer or a CPU and software executed thereon.

Next, the operation of the filter unit according to Embodiment 1 of the present invention will be described. FIG. 6 is a flowchart showing an operation procedure from particle collection to recharging in the filter unit according to Embodiment 1 of the present invention.
The control device 108 operates the air conditioner 100 to drive the fan 107 and collects dust by the filter 10 (step S1). That is, by driving the fan 107, air flows in the direction of the arrow in FIG. 5, and air passes from the second vent 23 b side of the filter unit 1 toward the first vent 23 a via the filter 10. Thereby, fine particles, dust, dust and the like contained in the air are collected by the filter 10. Then, the amount of electrification of the filter 10 is reduced due to dust and water adhering to the charging material 11 with use, and the electrostatic collecting effect is lowered with time (step S2).

  The control device 108 stops the operation of the fan 107 after a specified operation time (here, for example, 300 hours), and then starts recharging the filter 10 whose charge amount has decreased (step S3). At the time of recharging, the control device 108 vibrates the vibration unit 30 of the filter unit 1. Thereby, the insertion member 25a vibrates together with the wire mesh 22a to which the vibration part 30 is attached. Note that the insertion member 25b of the wire mesh 22b to which the vibration unit 30 is not attached remains stationary without vibrating.

  The barbs 24 of both the insertion members 25a and 25b of the wire nets 22a and 22b are engaged with the first fibers 11a and the second fibers 11b of the filter 10. For this reason, when the insertion member 25a vibrates, the fiber engaged with the insertion member 25a moves, and the fiber engaged with the insertion member 25b remains stationary. In this way, the fibers move relatively and the friction between the fibers is promoted, whereby triboelectric charging occurs (step S4). In the triboelectric charging, the first fiber 11a is positively charged and the second fiber 11b is negatively charged according to the charging characteristics of the fiber material.

  Here, the vibration unit 30 is vibrated for a specified set time (here, for example, about 5 minutes). By vibrating for a specified set time, the charge amount of the fiber is saturated, and the recharging of the filter 10 is completed (step S5). The control device 108 stops the vibration of the vibration unit 30 after the predetermined set time has elapsed and the recharging is completed (step S6). The operation of recharging in the same procedure as described above is repeated every 300 hours of operation.

FIG. 7 is a diagram showing the evaluation results of the dust collection performance of the filter unit according to Embodiment 1 of the present invention.
Sample 1 is an unused filter, Sample 2 is a filter that simulates a decrease in the amount of charge due to use by immersing Sample 1 in tap water, and then dried. Sample 3 is recharged by vibration of vibration unit 30 It is the filter made to do. As a result of evaluating each dust collection performance, the collection rate (counting method) of 0.3-0.5 μm particles at a wind speed of 0.2 m / s is 72.4% for sample 1 and 42.0 for sample 2. %, Sample 3 was 73.0%. The pressure loss was 9.5 Pa in all cases, and no difference was observed in any of the samples. From this, it can be confirmed that the filter with the reduced charge amount and the collection rate has been recovered to the same collection rate as that of the unused filter by performing recharging by the vibration of the vibration unit 30. It was.

(Modification)
In the first embodiment, the example in which the vent member in which the first vent port 23a and the second vent port 23b are formed is the wire mesh 22, but for example, a punching metal may be used. The example is not limited. Further, the material of the vent member is not necessarily a metal material, and a resin material such as ABS (acrylonitrile butadiene styrene) can also be used.

  Moreover, there is no restriction | limiting about the opening rate of the 1st ventilation port 23a and the 2nd ventilation port 23b in this Embodiment 1, However, If an opening rate is small, an air passage will be obstruct | occluded and pressure loss will increase, and an opening rate is 30% or more. It is preferable that

  Moreover, although the example in which the material of the insertion member 25 is PP was shown in this Embodiment 1, you may use metal materials, such as a stainless steel wire, and the material of the insertion member 25 is not limited to the example mentioned above.

  Moreover, although there is no restriction | limiting about the diameter of the insertion member 25 in this Embodiment 1, since if the diameter of the insertion member 25 is too small, it will not engage with the fiber of the filter 10, and if too large, the filter 10 will be obstruct | occluded, The diameter of the insertion member 25 is preferably used in the range of 20 μm to 2 mm, for example.

Further, the density of the insertion member 25 in the first embodiment is not limited. However, if the density is small, the filter 10 cannot be uniformly recharged, and if the density is large, the filter 10 is blocked. density of the insertion member 25 may be used with one ^/ cm 2 to 100 pieces / cm ² for.

  In the first embodiment, the barb 24 of the insertion member 25 has a hook shape. However, the barb 24 is not limited to the hook shape, and may have the shape shown in FIG.

FIG. 8 is a view showing another modified example of the barb of the insertion member of the filter unit according to Embodiment 1 of the present invention.
As shown to (a), it is good also as a structure which protruded from the outer peripheral surface perpendicularly | vertically to the outer peripheral surface of the taper column-shaped insertion member 25 perpendicularly | vertically from the outer peripheral surface in the insertion direction. Moreover, as shown to (b), it is good also as a structure which provided the pair of barbs 24 which oppose on both sides of the insertion member 25 in the outer peripheral surface of the tapered cylindrical insertion member 25. As shown in FIG. Moreover, as shown in (c), a plurality of barbs 24 curved in the direction opposite to the tip direction (upward direction in FIG. 8) are provided on the outer peripheral surface of the insertion member 25 in different directions in the insertion direction. It is good also as a structure.

  In addition, although the insertion member 25 illustrated the taper column shape here, the shape of the insertion member 25 is not restricted to this, For example, it is good also as prismatic shape. In addition, since the insertion member 25 is inserted in the filter 10, it is easy to insert it if the tip is tapered, but it does not necessarily need to be tapered. In short, what is necessary is just to be comprised so that the insertion member 25 may engage with a fiber. Moreover, as long as the insertion member 25 engages with the fiber, the barb 24 may not be provided as shown in FIG.

  Moreover, although the example which vibrates the insertion member 25 by making the vibration part 30 into a vibration motor was shown in this Embodiment 1, the vibration part 30 is not restricted to this structure, What is necessary is just to be able to vibrate the insertion member 25. FIG. In addition, for example, instead of the shaft 31, a spring that expands and contracts in the ventilation direction may be provided, and the insertion member 25 may be vibrated using the wind passing through the filter unit 1.

  In the first embodiment, the device to which the filter unit 1 is applied is an air conditioner that regulates the temperature of air. However, the air conditioner includes an air purifier that does not regulate the temperature of air. Shall.

  As described above, according to the first embodiment, the insertion member 25 inserted into the filter 10 is vibrated, and the fibers from the deep part of the filter 10 to the surface are moved to promote friction between the fibers. As a result, it becomes possible to recharge the filter 10 including the deep portion of the filter 10 whose charge has been reduced by use, and a sufficient recovery of the dust collection rate can be achieved.

  Further, as a method of performing recharging, there is a method of inserting / removing a needle into / from a filter a plurality of times, but this method may cause a reduction in filter strength and a deformation of the filter. However, in the first embodiment, since only the plug member 25 inserted into the filter 10 is vibrated, the filter 10 can be recharged without causing a decrease in strength or deformation.

  Moreover, since the insertion member 25 is formed in the metal mesh 22 as a pair of vent member, the insertion member 25 can be easily vibrated by attaching the vibration part 30 to the metal mesh 22 and vibrating it.

  Further, by configuring the vibration unit 30 with a motor, it can be vibrated at a timing that requires recharging under the control of the control device 108.

  Further, since the vibration unit 30 is vibrated for a set time required for saturation of the charge amount of the fiber, it is possible to recover the collection rate equivalent to that at the time of initial manufacture.

  Further, since a plurality of insertion members 25 are arranged in a distributed manner in the surface direction of the filter 10, the entire filter can be uniformly recharged.

  In addition, a spring that expands and contracts in the ventilation direction of the filter 10 can be used as the vibration unit 30. In this case, it can be vibrated by the wind pressure of the wind passing through the filter unit 1, and an electrical configuration for vibrating the vibration unit 30 is not necessary.

  In addition, the insertion member 25 includes the barbs 24 that engage with a plurality of types of fibers of the filter 10, whereby the fibers can be efficiently rubbed.

Embodiment 2. FIG.
In the first embodiment, the configuration in which the vibration unit 30 is provided on one side of the filter 10 is shown. However, in the second embodiment, the vibration unit 30 is provided on both sides of the filter 10, The point which set it as the structure which vibrates both of the insertion members 25 inserted, and recharges the filter 10 differs from the said Embodiment 1. FIG. The following description will focus on the differences of the second embodiment from the first embodiment. Configurations not described in the second embodiment are the same as those in the first embodiment. Note that the modification applied in the configuration part of the first embodiment is also applied to the same configuration part of the second embodiment. This also applies to the embodiments described later.

FIG. 9 is a schematic cross-sectional view showing the configuration of the filter unit according to Embodiment 2 of the present invention.
In addition to the filter unit 1 of the first embodiment shown in FIG. 2, the filter unit 1 of the second embodiment is further provided with a vibration part 30A as a vibration motor attached to the wire mesh 22b. In the first embodiment, the wire mesh 22b is fixed to the frame member 21 with screws, but in the second embodiment, it is attached to the frame member 21 via the shaft 31A. Thereby, by vibrating the vibration part 30A, the wire mesh 22b and the insertion member 25b vibrate in the XY axis direction and the Z axis direction of FIG. 9 according to the movable direction of the shaft 31A.

  The vibrating unit 30A is electrically connected to the control device 108 in the same manner as the vibrating unit 30, and the vibrating unit 30 and the vibrating unit 30A can be caused to vibrate independently. The insertion members 25a and 25b inserted from both surfaces of the filter 10 can be vibrated at different frequencies and phases.

Next, the operation of the filter unit 1 according to the second embodiment will be described. As in the first and second embodiments, a case where the present filter unit 1 is mounted on the air conditioner 100 will be described as an example. FIG. 10 is a flowchart showing an operation procedure from particle collection to recharging in the filter unit according to Embodiment 2 of the present invention.
The control device 108 operates the fan 107 of the air conditioner 100 and performs dust collection by the filter 10 (step S11). The electrostatic trapping effect of the filter 10 decreases with time due to dust and water adhering to the charging material 11 during use (step S12).

  The control device 108 stops the operation of the fan 107 after a specified operation time (for example, 300 hours here), and then starts recharging the filter 10 whose charge amount has decreased (step S13). At the time of recharging, the control device 108 vibrates the vibration unit 30 and the vibration unit 30A with the same frequency and with a phase shifted by 180 °. Thereby, the insertion member 25a vibrates together with the wire mesh 22a to which the vibration part 30 is attached, and the insertion member 25b vibrates in a direction different from the insertion member 25a together with the wire mesh 22b to which the vibration part 30A is attached. As a result, the fibers move relatively, and friction between the fibers is promoted, so that triboelectric charging occurs (step S14). In the triboelectric charging, the first fiber 11a is positively charged and the second fiber 11b is negatively charged according to the charging characteristics of the fiber material.

  Here, the vibration units 30 and 30A are vibrated for a predetermined set time (here, for example, about 2.5 minutes). By vibrating for a predetermined set time, the charge amount of the fiber is saturated, and the recharging of the filter 10 is completed (step S15). The control device 108 stops the vibrations of the vibration units 30 and 30A after the predetermined set time has elapsed and the recharging is completed (step S16). The operation of recharging in the same procedure as described above is repeated every 300 hours of operation.

  As described above, in the second embodiment of the present invention, the same effects as those of the first embodiment can be obtained, and the vibration unit 30 is attached to both of the metal meshes 22a and 22b as a pair of vent members. The following effects can be obtained by vibrating 25 with different behavior from both sides of the filter 10. That is, as compared with the first embodiment in which one of the insertion members 25a and 25b is stationary, the relative speed between the fibers can be increased, the friction can be efficiently performed, and the recharging can be performed in a shorter time.

  In the second embodiment, an example is shown in which the phases of the vibration unit 30 and the vibration unit 30A are shifted by 180 °. However, the insertion members 25 that vibrate in the vibration unit 30 and the vibration unit 30A have different behaviors. The phase between the vibration unit 30 and the vibration unit 30A is not necessarily limited to the above-described example. Moreover, the vibration frequency of the vibration part 30 and the vibration part 30A does not necessarily need to be equal.

Embodiment 3 FIG.
In the first and second embodiments, the filter 10 has a sheet shape. However, the third embodiment is different from the first and second embodiments in that the filter 10 has a pleated shape. The following description will focus on the differences of the third embodiment from the first embodiment. Configurations not described in the third embodiment are the same as those in the first embodiment.

FIG. 11 is a schematic cross-sectional view showing a configuration of a filter unit according to Embodiment 3 of the present invention.
The filter 10 according to the third embodiment is formed in a pleat shape in which a plate-like filter material is formed by alternately repeating a mountain fold and a valley fold, and is configured in a three-dimensional shape having a height in a direction perpendicular to the ventilation direction. ing. Thus, by making the filter 10 into a pleated shape, the collection area by the filter 10 is increased as compared with the case where the filter 10 is formed in a sheet shape, so that the collection efficiency can be increased.

  As shown in a partially enlarged view in FIG. 11, both surfaces of the filter 10 are sandwiched between wire meshes 22 a and 22 b formed in a pleat shape so as to follow the shape of the filter 10. The wire mesh 22 a is disposed downstream of the filter 10 in the ventilation direction, and is attached to the frame member 21 via the shaft 31. A vibrating portion 30 is attached to the wire mesh 22a. The wire mesh 22b is disposed upstream of the filter 10 in the ventilation direction, and is fixed to the frame member 21 with screws (not shown).

  Similar to the first embodiment, a plurality of insertion members 25 each having a hook-like barb 24 (returned) at the tip are provided on the surfaces of the metal meshes 22a and 22b facing the filter 10. The configuration in which the barb 24 of the insertion member 25 is inserted into the filter 10 so as to engage with the first fiber 11a and the second fiber 11b of the charging material 11 of the filter 10 is the same as in the first embodiment. It is.

  The operation of the filter unit of the third embodiment is the same as the flowchart of FIG. 6 used in the first embodiment.

  As described above, in the third embodiment, in the filter unit 1 including the three-dimensional filter 10, both surfaces of the filter 10 are sandwiched by the metal meshes 22a and 22b along the shape of the filter 10, and the insertion member on the metal mesh 22a side is inserted. By oscillating 25 and moving the fibers, friction between the fibers is promoted. Thereby, even if it is the three-dimensional filter 10, it can recover to the collection rate equivalent to the time of initial manufacture similarly to Embodiment 1. FIG.

  In addition, although it was set as the structure which connects and vibrates the vibration part 30 only to the metal-mesh 22a side here, the structure which combined the said Embodiment 2 with this Embodiment 3, and provided the vibration part 30 also to the metal-mesh 22b side. It is good.

  Moreover, although the example which vibrates the insertion member 25 was shown in the said Embodiment 1-3, the insertion member 25 should just vibrate relatively with respect to the filter 10, for example, the insertion member 25 is made still. The filter 10 may be vibrated.

  1 filter unit, 10 filter, 11 charging material, 11a first fiber, 11b second fiber, 12 support material, 20 housing, 21 frame material, 22 wire mesh, 22a wire mesh, 22b wire mesh, 23a first vent, 23b first Two vents, 24 barbs, 25 plug members, 25a plug members, 25b plug members, 30 vibration sections, 30A vibration sections, 31 shafts, 31A shafts, 100 air conditioners, 100a air conditioner main bodies, 101 bases , 102 Front grille, 103 housing, 104 suction port, 105 air outlet, 106 heat exchanger, 107 fan, 108 control device.

Claims (15)

A filter composed of multiple types of fibers;
An insertion member inserted into the filter;
The filter unit provided with the vibration part which vibrates the said insertion member and the said filter relatively. The insertion member is inserted in the ventilation direction of the filter,
The filter unit according to claim 1, wherein the vibration unit vibrates the insertion member. A plurality of vents, and a pair of vent members sandwiching the filter from both sides,
The filter unit according to claim 1 or 2, wherein a plurality of the insertion members are provided on the side of the pair of vent members facing the filter. The filter unit according to claim 3, wherein a plurality of the insertion members are arranged in a distributed manner in the surface direction of the filter. The filter unit according to claim 3 or 4, wherein the vibration section is attached to one of the pair of vent members. The filter unit according to claim 3 or 4, wherein the vibrating portion is attached to both of the pair of vent members. The filter unit according to claim 6, wherein each vibration part attached to each of the pair of vent members vibrates with different behavior. The filter unit according to claim 1, wherein the vibration unit is a motor. The filter unit according to any one of claims 1 to 8, wherein the vibration unit vibrates for a set time required for saturation of the charge amount of the fiber. The filter unit according to claim 3, wherein the vibration unit is a spring. The said insertion member is a filter unit as described in any one of Claims 1-10 provided with the barb engaged with the said multiple types of fiber of the said filter. The filter unit according to any one of claims 1 to 11, wherein the plurality of types of fibers include frictionally chargeable first fibers and second fibers. The filter unit according to any one of claims 1 to 12, wherein the filter is formed in a pleat shape. The air conditioner provided with the filter unit as described in any one of Claims 1-13. A filter recharging method in which an insertion member inserted into a filter composed of a plurality of types of fibers and the filter are relatively vibrated to move the plurality of types of fibers to frictionally charge the filter.

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