JP2019063749A - Filter unit attachment frame - Google Patents

Abstract

To provide an attachment frame which is light-weight, excellent in workability, and also excellent in workability in attaching/detaching a various kinds of filter units.SOLUTION: A filter unit attachment frame includes: a holder which defines a ventilation passage by a top plate, a bottom plate, and a pair of side plates, and is rotatably attached to a bracket arranged on each of the side plates; and a rail-like member which is arranged over an upstream and a downstream of the ventilation passage of the bottom plate so as to place and support a filter unit having an insertion hole for inserting the holder. The rail-like member has a cut part for extension formed facing the side plate over an extension direction, and has a support body which is rotatably attached to the cut part for extension.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an air conditioner for drawing in outside air and supplying it indoors, and relates to a filter mounting frame which is incorporated as an air conditioner and for mounting and storing a filter unit.

  Air conditioners are widely used for temperature control in buildings such as buildings and cleaning at the time of intake of external air, and are indispensable for improvement of the living environment. Such air conditioners are widely used to have a temperature control function and an air blowing function, and a filter mounting frame (sometimes referred to as a casing) incorporated in the apparatus has a filter having a filtering function such as dust. Mount the unit. Dust removed by filtration by the operation of the air conditioner is accumulated in the filter unit, and it is general to replace only the unit when the desired performance is not satisfied.

  As such an apparatus configuration, Japanese Patent Laid-Open No. 2014-217814 (hereinafter, Patent Document 1) proposes a technique capable of avoiding damage to a filter pack (hereinafter, comprehensively referred to as a filter unit). There is. FIG. 1 is an explanatory view showing a part of the mounting frame in a transparent manner in order to explain the mounting form of the filter unit 11 and the mounting frame 13 for mounting the filter unit 11, and the mounting of the filter unit on the mounting frame The symbols are omitted for components not directly related to. First, the filter unit 11 is a rectangular solid pleated at a predetermined pitch with a porous material such as non-woven fabric, and except for a pair of main surfaces used for filtration, a plate material, a sealing material, etc. It is airtightly formed. Further, the mounting frame 13 defines a rectangular air passage so that the unit 11 can be housed and mounted by the top plate 13a, the bottom plate 13b, and the two side plates 13c, and a part of the components 13a to 13c is folded back. Alternatively, the outlet 15 is formed by attaching a frame-like member separately.

  Such an attachment frame 13 is fixed to the air conditioner main body (not shown), and when the filter unit 11 is attached, the attachment frame 13 is inserted from the upstream side of the air passage as shown by the double-dotted arrow in FIG. Wear it in the body and fix it with a bolt etc. (not shown). At this time, the position of the air passage on the side plate side is regulated by a bonding member (not shown), and the height position is regulated by a pair of rail-shaped linear projections 15 attached to the bottom plate 13b and mounted at a predetermined position. Do. Further, a fixing member (not shown) is disposed at the upstream end of the air passage of the filter unit 11 mounted.

  With respect to such a method of supporting the lower end portion of the filter unit 11 with linear protrusions, the present applicant has previously proposed the Japanese Patent Application No. 58-14250 (the full text of Japanese Utility Model Application Publication No. 59-131219): In Patent Document 2), a mounting frame (hereinafter sometimes referred to as a mounting frame) is known in which the mounting frame is lighter than the technology of Patent Document 1 described above. FIG. 2 is a schematic explanatory view similar to FIG. 1 for explaining this document technology, and when there are a plurality of constituent components having the same function, some reference numerals are omitted. It shows. In the configuration shown in FIG. 1 described above, the depth of the mounting frame 13 is larger than the depth of the filter unit 11 (the dimension extending in the upstream and downstream directions of the air passage). The depth of the filter unit 17 is larger than the depth of the mounting frame 19. The mounting frame 19 also has a rectangular air passage slightly smaller than the size of the mounting frame 19 by a method such as folding back a part of the top plate 19a, the bottom plate 19b, and a pair of side plates 19c. Accepts 17 air passages downstream.

  Further, in order to mount and fix the filter unit 17 to the mounting frame 19, the bracket 21 is rotatably attached to the inner surface of the side plate 19c in the downstream direction of the air passage and in the direction perpendicular thereto. A substantially "U" shaped holder 23 is provided. In order to mount the filter unit 17 on the inner surface of the bottom plate 19b in addition to the holder 23, a support 27 is rotatably attached using a bracket 25 like the holder. On the other hand, on the surface corresponding to the upstream side of the air passage of the filter unit 17, a pressing frame 29 larger than the filtration surface of the main body portion accommodating the pleated filter material in three dimensions is attached. The insertion holes 31 are opened at four locations in total. The mounting of the filter unit is carried out by screwing both ends of the holder 23 as shown by the two-dotted line similar to FIG. 1 in FIG. 2, and the holder is inserted into the four insertion holes 31 provided in the filter unit 17. Insert 23 and fix with unillustrated bolts. At this time, the bottom of the main body of the filter unit 17 is placed on the support 27, and is mounted and fixed on three sides of the substantially rectangular filter unit.

JP-A-2014-217814 ([Claims], [0004] to [0006], [0012], [0031] to [0034], [0039] to [0043], [FIG. 3], [figures] 5] etc) The full text of Japanese Utility Model Application Publication No. 59-131219 ([claim of utility model registration request], [detailed description of the invention], [FIG. 1], etc.)

  Among the above-mentioned background art, in the technology of Patent Document 1, when the filter unit is demounted, the linear protrusion is provided on the air passage in order to prevent damage due to a bonding member or the like on the mounting frame side with respect to the outer peripheral surface Desorption is performed by guiding and moving in the downstream direction. On the other hand, in the technology of Patent Document 2, when attaching the mounting frame itself to the air conditioner, the compact mounting frame itself is simply transported by providing the holder and the support rotatably. In the technology of this patent document 2, since the component supporting the filter unit in the depth direction is rotatably provided, the dimension in the depth direction of the mounting frame, in other words, the width of the top plate, the bottom plate and both side plates In order to reduce the weight of the filter unit, it is possible to support the filter unit in the depth direction with the holder and the support.

  Here, the design dimension of the filter unit in the depth direction is, for example, 10 cm while using the mounting frame once installed by changing the filtration performance of the filter medium, adding functions such as deodorization, changing the specification of pleated state, etc. It may fluctuate in the range of about a dozen cm. However, the replacement of the mounting frame itself is expensive, and a technology has been desired which can cope with various filter units with the mounting frame once installed without losing the light weight and the workability at the time of installation disclosed in Patent Document 2. . The present invention has been made in view of such market requirements, and is an attachment frame which is light in weight and excellent in workability disclosed in Patent Document 2 and is also excellent in workability in desorption of various filter units. Aims to realize and provide

In order to achieve this object, according to the configuration of the mounting frame of the filter unit according to the present invention, the top plate, the bottom plate, and the pair of side plates define an air passage, and the brackets provided on each side plate A movable holder, and a rail-shaped member provided on the bottom and the upstream of the air passage of the bottom plate in order to mount and support a filter unit having an insertion hole for inserting the holder; A filter unit mounting frame having
The rail-like member is provided with an extension notch formed so as to face the side plate over the extension direction, and a support rotatably attached to the extension notch is provided. It is characterized by being provided.

  In addition, as another aspect of the present invention, a slope adjustment notch may be provided in the direction of the above-mentioned top plate continuously to the above-mentioned extension notch.

  By applying the configuration of the present invention, it is lightweight and excellent in workability at the time of installation, moreover, the mounting operation of the filter unit casing and the filter unit is easy, and moreover, the workability at the time of desorption of various filter units It is possible to realize an excellent installation frame.

In order to explain background art, it is a perspective view showing a conventional filter mounting frame and a filter unit in a partially transparent manner. It is a perspective view shown similarly to FIG. 1 in order to demonstrate the suitable form of another background art. In order to describe a preferred embodiment of the present invention, it is a perspective view showing the same as in FIGS. 1 and 2 and enlarging the main part. FIG. 4 is a schematic perspective view partially showing a state in which the support extends to the upstream side of the air passage by a schematic cross section in which the main part of FIG. 3 is enlarged. The schematic diagram which shows the state which moved the support body downstream, similarly to FIG. FIG. 7 is a schematic view showing a case where the support is extended to the upstream side of the ventilation passage, similarly to FIG. 4, in order to explain another embodiment according to the present invention. FIG. 7 is a schematic view showing a case where the support is moved to the downstream side of the air passage according to another embodiment of the present invention, similarly to FIGS. 5 and 6.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. In the following description, specific conditions such as specific shapes, arrangement relationships, numerical conditions, and the like are exemplified to the extent that the present invention can be easily understood. First, FIG. 3 is an explanatory view shown in the same manner as the above-mentioned figure, particularly FIG. 2, focusing on the rail-like member which is the feature of the present invention, in the upper side drawing the lower part drawing It is shown enlarged. In the figure, components having the same functions as the components already described may be assigned the same reference numerals and detailed description may be omitted.

  The preferred embodiment of FIG. 3 has the same configuration as the mounting frame 19 shown in FIG. 2, and instead of the bracket 25 and the support 27 shown in FIG. 2, the rail-like member 33 and the support 35 are provided. ing. In the lower side enlarged view, only the rail-like member 33 is shown hatched, but after the rectangular plate is punched out to make a frame shape, the opposing two sides are bent respectively, and the member 33 is constituted by this bent portion It forms the notch which is done. By attaching the rail-like member 33 manufactured in this manner to the bottom plate 19b by a well-known technique such as welding, the extension notch facing the side plate 19c in the extension direction corresponding to the upstream and downstream directions of the air passage. A reference numeral 37 is defined between the rail-like member 33 and the bottom plate 19b. The end portions of the rail-like members 33 each have a general shape standing upright toward the top plate 19a, and the height of the notches 37 is a support 35 obtained by bending a substantially circular metal rod. The support 35 inserted into the notch 37 is rotatable and is extendable in the upstream and downstream directions of the air passage.

  Next, the operation of the preferred embodiment will be described in detail with reference to FIGS. 4 and 5. 4 and 5 pay attention to the rail-like member in the mounting frame structure shown in FIG. 3 and partially see through a schematic side view when viewed from the side plate 19c side toward the central side of the air passage. It is a schematic diagram shown. First, an extension notch 37 facing the side plate is defined by the bottom plate 19b and the rail-like member 33, and the end of the support 35 is at the center of the vent passage (the paper surface shown in the drawing It is rotatably inserted from the back side). FIG. 4 shows a state in which the support body 35 is extended to the most upstream side of the venting passage of the extending notch portion 37. In this state, the support 35 is mounted on the portion joined to the bottom plate 19 of the rail-like member 33, and the top plate surface is viewed from the bottom plate surface by the portion corresponding to the thickness (the portion denoted by a in the figure). A slightly angled extension towards the side. In this specification, the angle between the support and the bottom plate is referred to as the inclination. The state shown in FIG. 4 can take a suitable support position when the depth dimension of the filter unit (not shown) is relatively large, and by moving the support 35 to the upstream side of the air passage of the unit, The support can be supported on the more upstream side of the center of gravity of the filter unit placed on the top plate side end of the rail-like member 33, and the unit can be stably mounted and fixed. The filter unit is mounted on the upper end of the rail-like member 33 while inserting the holder 23 into the insertion hole 31 on the filter unit side described in FIG. It is fixed by a bolt. In this mounted state, the support 35 as shown in FIG. 4 has an inclination with the main surface of the bottom plate, whereby the metal rod constituting the support is bent by reliably contacting the bottom of the filter unit, and the rail-like member The unit can be reliably supported together with the upper end portion 33 to realize stable fixed installation.

  On the other hand, in the state of FIG. 5 in which the support body 35 is moved to the downstream side of the air passage of the extension cutout portion 37, the degree of inclination is gentler than in the case shown in FIG. Further, when the depth dimension of the filter unit is relatively small, the extension distance of the support pair 35 itself to the upstream side of the air passage may be small, so as shown in FIG. It may be moved to the side to carry out the mounting operation.

Another form of mounting frame utilizing such an inclination will be described with reference to FIGS. 6 and 7. FIG. 6 shows the case where the upper end of the top plate, the bottom plate, and the side plates of the upper plate and the air passage upstream end of both plates are adopted in order to enhance the structural strength of the mounting frame, as employed in many mounting frames There is. As shown in FIG. 6, a turnback portion L is provided at the upstream end of the bottom plate 19b, and the rail-like member 39 is continuous with the above-described extension cutout portion 37 and in the top plate direction (on the illustration). Slope adjustment notch portions 41a to 41c provided on the side are formed. First, in FIG. 6, the support body 35 is extended to the most upstream side inclination adjustment notch portion 41a of the air passage, and forms the inclination with the above-described folded portion L as a fulcrum. In this case, in the filter unit (not shown) mounted on the upper end of the rail-like member 39 and having a relatively large depth dimension, the support 35 having the inclination fitted and fixed to the inclination adjustment notch portion 41a is bent Securely support the bottom of the unit on the upstream side of the air passage. In addition, when mounting a relatively small filter unit with a depth dimension, as shown in FIG. 7, the filter unit is supported and fixed with a small inclination by a support 35 fitted and fixed to the inclination adjustment notch portion 41c. It is configured. Here, as can be understood from the support body 35 partially shown in FIG. 7 as the obliqueness adjustment notch portion, h ₁ to h ₃ of the notch portion 41 a toward the notch portion 41 c can be understood. The notch heights indicated by reference numerals (the dimensions of the notch extending from the upper end of the extension notch to the top plate) are successively smaller. In the embodiment shown in FIGS. 6 and 7, the height of the folded portion L is higher than the height of the extension notch 37 from the bottom plate 19b, so the slope adjustment notch closest to the portion L and it has a configuration to reduce the slope angle by increasing 41a notch height h ₁ of the. By adopting such a configuration, when mounting a filter unit having a relatively large depth dimension, the support 35 is fitted in the inclination adjustment notch portion 41a, and is in the state of extending most to the upstream side of the air passage. Conversely, in a filter unit with a small depth dimension, the degree of inclination and the degree of extension are reduced by the support 35 fitted in the inclination adjustment notch 41c having the smallest notch height. Although the inclination adjustment notch shown in these figures shows the form provided at three places, according to the design of the filter unit configured with various depth dimensions, the position, the number of arrangement, the notch height, etc. are arbitrary and preferable Can be designed.

  The preferred embodiments of the present invention have been described above with reference to the drawings, but the present invention is not limited to these examples. For example, as can be understood from FIG. 3, in the embodiment described above, the case where the depth dimension of the filter unit is larger than the depth dimension of the mounting frame has been described. The usage form of the mounting frame of the present invention is not limited to the above-described example shown in the drawings, and can be applied to a filter unit having a smaller depth than the mounting frame. In this case, the support is moved and stored at the most downstream side of the air passage so as not to be involved in the fixed attachment, and the filter unit is mounted on the top of the rail-like member but the support does not contact the bottom surface of the unit Also as a configuration, the unit itself can be securely fixed between the rail-like member and the holder. As described above, the mounting frame of the present invention is light in weight and excellent in workability, and can stably mount and fix the filter unit configured with various depth dimensions. The present invention is not limited to the specific exemplary conditions described above, and any suitable design changes or variations may be made within the scope of the present invention.

11, 17: Filter unit,
13, 19: Mounting frame,
13a, 19a: top plate, 13b, 19b: bottom plate, 13c, 19c: side plate,
15: linear projections,
21, 25: bracket, 23: holder, 27, 35: support,
29: Holding frame, 31: Insertion hole,
33, 39: rail-like members, 37: extending cutouts,
41a to 41c: obliqueness adjustment notches,
L: Folded portion (of the bottom plate), h ₁ , h ₂ , h ₃ : notch height.

Claims (2)

A filter unit comprising a top plate, a bottom plate, and a pair of side plates defining an air passage, a holder rotatably mounted on a bracket provided on each of the side plates, and an insertion hole for inserting the holder into the holder. A filter unit mounting frame having rail-like members provided upstream and downstream of the air passage of the bottom plate for mounting and supporting the
The rail-like member is provided with an extension notch formed so as to face the side plate over the extension direction, and a support rotatably attached to the extension notch is provided. Filter unit mounting frame characterized in that it is provided.   The filter unit mounting frame according to claim 1, wherein a slope adjustment notch portion is provided in the top plate direction continuously to the extension notch portion.

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