JPH0533846U - Automotive air purifier - Google Patents

Abstract

(57) [Abstract] [Purpose] The purpose is to make the fan mounting part of the on-vehicle air purifier a new structure, to make the main body thin, have a long life, and quiet the sound. [Structure] Two fan mounting brackets are used on the shaft of the motor, the motor-side bracket is formed in a convex shape and mounted so as to surround the outer periphery of the motor bearing, and the other bracket contacts the motor-side bracket at the shaft section. By tightening and fastening the fan to the outer peripheral opening of the mounting member via a cushioning material, the main body can be made thin, noise can be reduced, and reliability can be improved.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an on-vehicle air cleaner that collects dust floating in the air in a vehicle compartment or the like.

[0002]

[Prior Art]

 Since the on-vehicle air cleaner is usually installed in the rear tray, it is dangerous unless the height of the main body is made low to secure the rear view, and the height of the air cleaner is desired to be as low as possible. In addition, when a person sits in the back seat, the main body is located next to the ear, so there is a demand for an especially quiet sound.

The configuration of a conventional vehicle air cleaner will be described below with reference to FIG. As shown in the figure, the discharge device section 101 includes a linear discharge electrode 102 and a counter grounding electrode 103, and is installed on the windward side of the dust collecting section 104. A motor 106 for driving a blower fan 105 is provided on the lee side of the dust collecting portion 104, and the dust collecting portion 104 has positive electrodes 107 and negative electrodes 108, which are plate electrodes, alternately arranged. A deodorizing activated carbon 109 is provided on the downstream side of the. Further, a lid 111 is provided at the upper opening of the main body 110 via a packing 112 for keeping airtightness. An intake port 113 and a pre-filter 114 are provided on the discharge device section 101 side, and an exhaust port 115 is provided on the blower fan side. Incidentally, 116 is a motor shaft and 117 is a spiral chamber.

When the in-vehicle air cleaner having the above-described configuration is operated, dust-containing air is sucked in through the intake port 113, coarse dust such as cotton dust is removed by the pre-filter 114, and fine dust is generated by the discharge device unit 101. After being charged, the Coulomb force of the electric field of the dust collecting unit 104 collects the dust in the dust collecting unit 104, the deodorizing activated carbon 109 deodorizes the air, the fan 105 sucks the air into the swirl chamber 117, and the exhaust port 115 cleans the air. Will be blown.

[0005]

[Problems to be solved by the device]

 However, although the height is determined by the length of the motor 106, that is, the length of the shaft 116 portion, since the shaft 116 has a small diameter, the resin fan 105 to be attached needs to increase the thickness of the shaft 116 portion. Was getting longer. Further, since the motor made of a resin fan 105 having poor heat conduction is attached to the motor, the temperature rises greatly, and a large motor 106 has to be used. Furthermore, the relationship between the motor 106 and the fan 105 is that if the motor 106 at the center of the circular fan vibrates like a speaker, the fan 105 vibrates to expand the sound and raise the noise.

The present invention solves the above problems, and an object of the present invention is to provide a vehicle-mounted air purifier that is thin, has a long life, and is quiet.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention comprises (1) a main body having an intake port and an exhaust port, and a discharge device section, a dust collecting section, and a fan driven by a motor inside the main body, The motor shaft has two fan mounting brackets, the motor side bracket is formed in a convex shape, and is mounted so as to surround the outer periphery of the motor bearing part. The other metal part is the motor side bracket and the shaft part. It is configured so that it contacts and is tightened.

(2) The fan is fixed to the opening on the outer peripheral side of the two fan mounting brackets via a cushioning material.

(3) The two fan mounting metal fittings are formed by mounting metal fittings of the same shape formed in a convex shape so as to face each other.

(4) An auxiliary fan for guiding the wind to the main fan is formed on the other metal fitting that is not the motor-side metal fitting.

[0011]

[Action]

 According to the present invention, in the above configuration, (1) the two fan mounting brackets are contact-tightened at the shaft portion, and therefore the thickness of the fan is not added to the thickness of the shaft portion, so the thickness is reduced.

Further, since the metal fittings are in contact with the shaft, the heat of the motor transmitted through the shaft is radiated through the metal fittings, so that the motor becomes smaller. (2) Since the fan is fixed to the openings on the outer peripheral side of the two fan mounting brackets via the cushioning material, the vibration of the motor is not transmitted to the fan, which reduces noise.

(3) The two fan mounting brackets need only be one mold to make the brackets by mounting the convex shaped brackets of the same shape so as to face each other.

(4) The amount of intake air is increased by forming an auxiliary fan that guides the air to the main fan to the other metal fitting that is not the motor-side metal fitting.

[0015]

【Example】

 (First Embodiment) A first embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

As shown in the figure, the discharge device section 1 is provided with a linear discharge electrode 2 and a counter grounding electrode 3, a pre-filter 4 is installed on the windward side, and a dust collecting section 5 is installed on the leeward side. A motor 7 for driving a blower fan 6 is provided on the lee side of the portion 5, and a deodorizing activated carbon 8 is provided on the downstream side of the dust collecting portion 5. A lid 10 is provided in the upper opening of the main body 9 via a packing 11 for keeping airtightness. The fan 6 is attached to the shaft 12 of the motor 7 with the two fan attachment fittings 13a and 13b, the motor-side attachment 13a is formed in a convex shape so as to surround the outer circumference of the bearing portion 14 of the motor 7, and the other The metal fitting 13b is in contact with the motor side metal fitting 13a at the shaft 12 and tightened, and the fan 6 is fixed to the outer peripheral side openings of the mounting metal fittings 13a and 13b through the cushioning materials 15a and 15b. Reference numeral 16 is an intake port, 17 is a swirl chamber, and 18 is an exhaust port.

When the vehicle-mounted air cleaner is operated in the above configuration, dust-containing air is sucked in through the intake port 16, coarse dust such as cotton dust is removed by the pre-filter 4, and fine dust is charged in the discharge device section. Then, the Coulomb force of the electric field of the dust collecting portion 5 collects the dust in the dust collecting portion 5, the deodorizing activated carbon 8 deodorizes the air, and the fan 6 sucks the air into the swirl chamber 17 to form clean air from the exhaust port 18. Is blown away.

In this configuration, since the two fan mounting brackets 13a and 13b are contacted and tightened at the shaft 12 part, the thickness of the main body 9 is reduced because the thickness of the fan 6 does not add to the thickness of the shaft 12 part. Can be thinned.

Further, since the metal fittings 13a and 13b are in contact with the shaft 12, the heat of the motor 7 transmitted through the shaft 12 is transmitted through the metal fittings 13a and 13b provided in a portion where the wind is very well radiated. Therefore, the output of the motor 7 can be increased, and the motor 7 can be downsized. Alternatively, in the case of the same size, the temperature of the motor 7 can be lowered and the reliability can be improved.

Further, since the fan 6 is fixed to the openings on the outer peripheral side of the mounting brackets 13a and 13b via the cushioning materials 15a and 15b, the vibration of the motor 7 is not transmitted to the fan 6 and therefore noise is reduced. You can

Second Embodiment A second embodiment of the present invention will be described with reference to FIG. In this embodiment, as shown in the figure, convex fan mounting brackets 19 of the same shape are mounted so as to face each other, and since the fan mounting bracket 19 is solid, one mold is required. It improves and can be manufactured at low cost. 20a and 20b are cushioning materials provided between the fan 6 and the fan mounting member 19.

(Third Embodiment) A third embodiment of the present invention will be described with reference to FIG. In this embodiment, an auxiliary fan 22 for guiding the wind to the fan 6 is formed on the other metal fitting 21b that is not on the motor 7 side. With this configuration, the intake air volume can be increased, so that the same air volume is obtained. In some cases it can be small. Note that 23a and 23b are cushioning materials provided between the fan 6 and the metal fittings 21a and 21b.

As described above, according to the embodiment of the present invention, it is possible to make the vehicle-mounted air cleaner thinner, smaller, and lighter, and to improve reliability.

[0024]

[Effect of the device]

 As is apparent from the above description of the embodiment, according to the present invention, the two fan mounting brackets are contacted and fastened by the shaft portion, so that the thickness of the fan does not add to the thickness of the shaft portion. The height of can be reduced.

Further, since the metal fittings are in contact with the shaft, the heat of the motor transmitted through the shaft is also dissipated by the metal fittings provided in the portion where the wind is flowing very well, so that the output of the motor is reduced. The reliability can be increased because the motor can be raised and the motor can be made smaller, or the motor temperature can be lowered in the case of the same size.

Further, since the fan is fixed to the opening on the outer peripheral side of the mounting member via the cushioning material, vibration of the motor is not transmitted to the fan, and thus noise can be reduced.

Further, since the two metal fittings for mounting the fan use the metal fittings having the same shape and formed in a convex shape, only one mold is required, and therefore the manufacturing cost can be reduced.

Further, by forming an auxiliary fan that guides the wind to the main fan to the other metal fitting that is not the motor-side metal fitting, the intake air volume can be increased. it can.

As described above, according to the present invention, it is possible to provide an in-vehicle air cleaner that is compact, thin, and lightweight, has high reliability, and is inexpensive.

[Brief description of drawings]

FIG. 1 is a sectional view of a vehicle-mounted air cleaner according to a first embodiment of the present invention.

FIG. 2 is an enlarged sectional view of the same part.

FIG. 3 is an enlarged sectional view of an essential part of a second embodiment of the present invention.

FIG. 4 is an enlarged sectional view of an essential part of a third embodiment of the present invention.

FIG. 5 is a sectional view of a conventional vehicle air cleaner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Discharge device part 5 Dust collection part 6 Fan 7 Motor 9 Main body 12 Motor shaft 13a, 13b Fan mounting bracket 14 Motor bearing part 15a, 15b Buffer material 16 Inlet port 18 Exhaust port 19 Fan mounting bracket (second embodiment) 20a , 20b cushioning material (second embodiment) 21a, 21b fan mounting bracket (third embodiment) 22 auxiliary fan (third embodiment) 23a, 23b cushioning material (third embodiment)

Claims (4)

[Scope of utility model registration request] 1. A main body having an intake port and an exhaust port, a discharge device section, a dust collecting section, and a fan driven by a motor from inside the main body, and two fans are attached to a shaft of the motor. An on-vehicle air cleaner that has a metal fitting and is formed so that the motor-side fitting is formed in a convex shape so as to surround the outer circumference of the bearing of the motor, and the other fitting is in contact with the motor-side fitting at the shaft portion and tightened. .. 2. The in-vehicle air purifier according to claim 1, wherein the fan is fixed to the openings on the outer peripheral side of the two fan mounting brackets via a cushioning material. 3. The in-vehicle air purifier according to claim 1, wherein the two fan mounting brackets are formed by mounting protruding metal brackets of the same shape so as to face each other. 4. The in-vehicle air cleaner according to claim 1, wherein an auxiliary fan for guiding the wind to the main fan is formed on the other metal fitting that is not the motor-side metal fitting.