JPH0618018U - Air purifier filter structure - Google Patents

Abstract

(57) [Summary] (Corrected) [Purpose] The air volume of the air box can be increased without increasing the diameter of the air box to increase the air flow rate to the dust collection filter, and the dust collection capacity, efficiency and durability are improved. Let A dust collecting filter 11 is inserted in an air passage formed between an air intake 3 and a blower fan 7 and between an inlet duct of the blower 7. The filter 11 is composed of a bellows-shaped filter paper 12 having pleats parallel to the air flow. Of the triangular end surfaces of the filter paper, the end surface on the air inlet side is closed by a shield plate, and the air flow is moved along the filter paper surface 12. After passing through, it is allowed to flow to the duct 5. Therefore, the height of the pile of the filter paper 12 is set to the clearance C between the duct 5 and the wall of the box 2.
Can be full.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention particularly relates to a dust collecting filter structure incorporated in a vehicle air purifier that is used by being installed in a front portion of a vehicle interior.

[0002]

[Prior art]

 A conventional vehicle with a structure in which an outside air intake is provided on the cowl top of the vehicle, and the outside air taken in through this outside air is purified through a filter unit installed inside the instrument and released into the passenger compartment. As an air purifier for use, there is one having a structure as shown in FIG. Hereinafter, a schematic structure of this conventional automobile air cleaner will be described.

Reference numeral 1 is an air box provided on the back side of the cowl top 2, and the cowl top 2 is provided with an outside air intake 3 for taking in outside air into the air box 1. A duct 5 communicating with the intake case 4 is provided in the air box 1, and a dust collecting filter 6 is detachably attached to the opening of the duct 5. Further, a blower fan 7 is installed inside the intake case 4 located below the dust collecting filter 6.

Therefore, in the air purifier having such a structure, when the blower fan 7 is driven, the outside air sucked from the outside air intake 3 passes through the dust collecting filter 6 and is cleaned, and this cleaned air is supplied to the vehicle. It is something that is sent indoors.

[0005]

[Problems to be solved by the device]

 However, as shown in FIG. 2, the structure of the dust collecting filter 6 incorporated in the automobile air purifier having such a structure has a bellows of a certain height inside the enclosure 8 whose depth is a certain width a. A filter paper 9 formed in a shape (pleat shape) is laid, and an air passage 10 is provided between the upper surface of the dust collecting filter 6 and the inner surface of the cowl top 2, and the air passage 10 is provided. The passed air is sucked from the upper surface of the dust collecting filter 6 to collect dust.

Therefore, the amount of air passing through the dust collecting filter 6 depends on the passage width b of the ventilation passage 10, and if the passage width b is narrow, the passage resistance becomes large and sufficient. It becomes difficult to obtain purified air. Therefore, if it is desired to increase the amount of purified air per unit time, it is conceivable to expand the passage width b of the ventilation passage 10, but in this case, the diameter (height) of the air box 1 becomes large. There is a problem that it will be done.

[0007]

[Means for Solving the Problems]

 The present invention has been made in view of such a conventional problem, and it is possible to increase the air flow rate to the dust collecting filter without changing the diameter of the air box while keeping the existing air box shape. Moreover, it is an object of the present invention to provide a filter structure of an air purifier that can sufficiently exhibit the dust collecting ability of the dust collecting filter to improve durability and dust collecting efficiency.

[0008]

【Example】

 The present invention will be described in detail below based on the embodiment shown in FIGS. 3 to 8. In this embodiment, the structure of the dust collecting filter is different from the conventional structure, and other structures are described in the conventional example. Since the structure is the same, the same parts are denoted by the reference numerals used in the conventional example, and the description of the same structure part is omitted.

In FIGS. 3 and 4, reference numeral 11 denotes a dust collecting filter of the present embodiment structure. This dust collecting filter 11 can pass through the filter paper of the dust collecting filter 11 by ventilating from its side surface. It is characterized by the configuration. That is, in the structure of the dust collecting filter 11 of this embodiment, as shown in FIG. 4, the filter paper 12 is formed in a bellows shape (pleat shape) having a constant height width c, and is formed on the end surface of the bellows shape filter paper 12. The triangular mountain-shaped opening 13 to be formed is closed by an air-impermeable shield plate 14, and the shield plate 14 mounting surface is positioned on the windward side of the air passage, so that the shield plate 14 is formed between the shield plates 14. It passes through the inverted triangular passage 15 along the surface of the filter paper 12 and then passes through the filter paper 12 to collect dust and then is circulated to the duct 5.

Therefore, if the dust collecting filter 11 of this structure is arranged and used in the air passage 10 of the air box 1, the dust collecting filter 11 can be ventilated from the side surface thereof, and therefore the upper surface of the dust collecting filter 11 is covered by the cowl top filter. Even if the road width b shown in the conventional example is blocked by contacting the inner surface of No. 2, the dust collecting function of the dust collecting filter 11 becomes effective. For example, as shown in FIG. Since a dust collecting filter having a large filter height c can be used so that the upper surface of the dust collecting filter 11 is brought into contact with the cowl top 2, the filter paper area is expanded to improve durability and dust collecting ability. It can be done.

Next, a description will be given of a shield plate mounting structure for mounting the shield plate 14 to the chevron-shaped opening 13 of the bellows-shaped filter paper 12. First, the mounting structure of the filter paper 12 and the shield plate 14 may be considered. As shown in FIGS. 5 and 7a, the shield plate 14 forming the teeth 16 in a substantially sawtooth shape and the bellows-shaped filter paper 12 are combined, and the end faces of the teeth 16, that is, the thickness surface of the shield plate 14 is the filter paper. The adhesive 17 is positioned so as to be in contact with the lower surface of the adhesive 12, and the adhesive 17 is provided on the side edge 18 of the substantially sawtooth-shaped shield plate 14 as shown in FIGS. 6 and 7b. 7C, and as shown in FIG. 7C, an adhering means such as abutting the edge corners of the shielding plate 14 and the edge corners of the filter paper 12 and adhering with the adhesive force of the adhesive 17 is used. It is conceivable that any of the above adhesive means should be shielded. Since the adhesive surface between the shielding plate 14 and the filter paper 12 is small, the adhesive surface may be peeled off due to wind pressure due to long-term use and the durability as a filter may be impaired.

Therefore, as an adhering means of the present embodiment, as shown in FIGS. 8 and 7d, the end face abutting portion 19 abutting on the end face of the bellows-shaped filter paper 12 and the inner side surface of the bellows-shaped filter paper 12 are attached. By forming a shield plate 21 having a double contact portion with the inner contact portion 20 to be contacted, and by using this shield plate 21, the end surface and the inner surface of the bellows-shaped filter paper 12 are bonded together. The adhesive strength between the filter paper 12 and the shielding plate 21 is enhanced, and a dust collecting filter having excellent adhesive durability can be obtained.

[0013]

[Effect of device]

 As described above, the present invention provides a dust collecting filter having a bellows-shaped filter paper 12 having pleats parallel to the air flow direction in the air passage 10 formed between the air intake 3 and the blower fan 7. The filter structure of the air purifier in which each of the chevron-shaped openings 13 formed on the end face of the bellows-shaped filter paper 12 is closed by the shielding plate 14 allows the filter to ventilate from the side surface of the bellows-shaped filter paper 12. Since it is possible to install a large dust collection filter in a narrow air passage where the upper surface of this filter is blocked, it can be used for an air purifier with a small air box. That is, there is an effect that a durable dust collecting filter can be obtained as a large filter structure without changing the shape of the air box.

[Brief description of drawings]

FIG. 1 is a structural explanatory view of a conventional air cleaner.

FIG. 2 is a structural explanatory view of a conventional dust collecting filter.

FIG. 3 is a structural explanatory view of an air purifier according to an embodiment of the present invention.

FIG. 4 is a structural explanatory view of the dust collecting filter of the above embodiment.

FIG. 5 is an explanatory diagram of a configuration of a dust collecting filter.

FIG. 6 is an explanatory diagram of a configuration of a dust collecting filter.

FIG. 7 is an explanatory view showing each bonding mode of the filter paper and the shielding plate.

FIG. 8 is an explanatory view showing a structure of an adhesive portion between a filter paper and a shielding plate according to the embodiment of the present invention.

[Explanation of symbols]

 11 ... Dust collection filter 12 ... Filter paper 13 ... Angled opening 14 ... Shielding plate 15 ... Passage 16 ... Sawtooth 17 ... Adhesive 18 ... Side edge 19 ... End face abutting portion 20 ... Inner abutting portion 21 ... Shielding plate

Claims (1)

[Scope of utility model registration request] 1. An air intake (3) and a blower fan (7)
In a dust collecting filter having a bellows-shaped filter paper (12) having pleats parallel to the air flow direction in the air passage (10) formed between the dust collection filter and each of the end faces of the bellows-shaped filter paper (12). Mount the chevron opening (13) to the shield (1
A filter structure of an air purifier characterized by being blocked by 4).