JPH04131419U - Filter element for air cleaner - Google Patents

Abstract

(57) [Summary] [Purpose] The object of the present invention is to provide a filter element for an air cleaner that is equipped with a clogging detection section that reliably displays and makes it easy to check when the filter element should be replaced. [Structure] The filter element 1 includes a frame body 2 made of a synthetic resin molded body formed into a rectangular shape, and a filter member 3 disposed inside the frame body 2. The filter member 3 is
The filter paper is folded in a zigzag pattern at a constant pitch, and the four circumferences of the zigzag pattern are fixed to both inner sides of the frame 2 via an adhesive. An air-impermeable sheet 5 is adhered to a part of the upper surface of the filter member 3 with an adhesive 7, and this part serves as a clogging detection part 8.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This idea installs a clogging detection part that determines the usage limit and effectively removes the filter. This invention relates to a filter element for an air cleaner that allows element replacement.

0002

[Conventional technology]

Air cleaner filter elements used in the intake system of automobile engines are Clean the filter element while using it, and if it becomes clogged to a certain extent, the filter element will close. Filter element must be replaced. To determine clogging within a certain limit As a clogging detector, there is a visual inspection method that uses the negative pressure of the intake manifold. indicators and electrical indicators are used.

0003 On the other hand, among the filter elements, there is a rectangular shape between the rectangular housing and the cover. The air cleaner has a structure in which the filter element is sandwiched and fixed, depending on its shape and In terms of filtration area, it is advantageous when dealing with other parts in the narrow space of the engine room. The filter element can be replaced while checking how dirty it is. It is being done. However, in reality, there were technical problems described below.

0004

[Problem that the idea aims to solve]

In other words, in the case of a visual indicator, an air cleaner must be installed on the engine. A clogging detector is installed in a part of the intake pipe after the engine is installed. The room has many auxiliary equipment, and the visual indicator is difficult to see and does not function as a clogging detector. There are things I don't want to do. In addition, electric indicators are expensive and costly. This would go against the current situation where downtime is required. In addition, a rectangular filter If you replace the filter element based on how dirty it is, it may be difficult to replace it based on how dirty the filter element is. This is uneconomical as it causes the parts to be exchanged.

[0005] This idea solves the above problems, and the surface of the filter element A clogging detection section is installed in some parts to check when to replace the filter element, making it cheaper and easier to maintain. We aim to provide filter elements for air cleaners with improved maintenance performance. purpose.

[0006]

[Means to solve the problem]

In order to achieve the above object, this invention includes a frame integrally provided around the periphery; An air cleaner with a filtration member folded into the frame in a zigzag shape. In the filter element, a non-breathable sheet is attached to a part of the surface of the filter member. It is characterized by having a clogging detection section.

[0007]

[Effect]

The clogging detection part consists of a sheet attached to a part of the upper surface of the filter member. If the element becomes clogged and the pressure difference increases, it will break and the seat will break. If you set the condition to be the same as when replacing the filter element, you can use it when cleaning the filter element. The time when the sheet is visually confirmed to be damaged during maintenance is when the filter element When the filter element reaches a certain limit of clogging, the filter element must be replaced. By doing so, you can effectively utilize the life of the filter element.

[0008]

【Example】

1 and 2 show an embodiment of this invention. The filter in the diagram The element 1 includes a frame body 2 made of a synthetic resin molded body formed into a rectangular shape, and this frame body. A filter member 3 is provided inside the filter member 2.

[0009] The filter member 3 is made by folding filter paper in a zigzag pattern at a constant pitch. The four circumferences of the zigzag shape are fixed to both inner sides of the frame 2 via adhesive. There is. A flange portion 2a is integrally provided on the upper peripheral edge of the frame body 2, and this flange portion 2a The hinge part 2a is attached to the rectangular housing and cover holding part of the air cleaner (not shown). The filter element 1 is sandwiched and held in the air cleaner, and the upper part of the frame 2 A pitch retaining material 4 is integrally stretched in the center along the longitudinal direction, and a filter is placed at the bottom of the material. By joining to the top of the filter member 3, the pitch of the filter member 3 is kept constant. Ru.

0010 A non-breathable sheet 5 is attached to a part of the upper surface of the filter member 3 with an adhesive 7. This part serves as a clogging detection section 8. The sheet 5 is, for example, thin It is composed of a membrane-like synthetic resin and is located at the corner of the frame 2 so as to straddle its two sides. It is placed between the top surface of the frame 2 and the mountain fold of the filter member 3, and is attached to the filter member 3. The adhesive 7 is provided so as to close the valley of the filter member 3 on one side of the filter member 3. ing.

[0011] The filter element 1 with the above configuration is housed in a rectangular housing and cover. When the car is running and the air cleaner is used, the dust 9 in the outside air is filtered out. It adheres to the filter element 1 and increases its ventilation resistance. The differential pressure between the primary dirty side and the secondary clean side gradually increases, Cleaning to remove dust 9 is repeated and used, but eventually the filter element When the seat reaches a certain limit of clogging, the seat 5 will be damaged due to the differential pressure between the primary and secondary sides. 0, visually check this to confirm that it is time to replace filter element 1, and replace the filter element 1. Replace the router element.

0012

[Effect of the idea]

As explained in detail through the embodiments above, the filter element according to this invention When performing maintenance such as cleaning the filter element, The filter can be detected by checking for damage to the sheet of the clogging detection section installed on the surface of the filter. You can know when to replace the filter element, and if the filter element is not replaced, The seat remains damaged and the filter element continues to require replacement. This indicates that by replacing the filter element, the clogging detection section will also be replaced. It becomes. Since the clogging detection part is installed on the surface of the filter member, you can be sure when it is time to replace it. It is easy to check, and there is no need to worry about overlooking it as it is checked during filter element maintenance. Since the clogging detection section has a simple configuration, it is inexpensive.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an embodiment of the invention.

FIG. 2 is a partial cross-sectional view showing the replacement timing.

[Explanation of symbols]

1 Filter element 2 Frame 3 Filtration member 8 Clogging detection section

Claims (1)

[Scope of utility model registration request] 1. An air cleaner element comprising a frame body integrally provided around the periphery and a filtration member folded in a zigzag shape inside the frame body, wherein a part of the surface of the filtration member is non-ventilated. 1. A filter element for an air cleaner, comprising a clogging detection part to which a transparent sheet is attached.