JP3758827B2 - Manufacturing method of casing member for air conditioning - Google Patents

Description

[0001]
The present invention Oite ceiling embedded indoor unit of an air conditioner, the manufacturing method of the air conditioning indoor unit casing, or the air outlet and the suction port to partition forming such an air conditioning casing member of the chamber to Dari surrounds the periphery It is about.
[0002]
[Prior art]
As one of the air conditioning casings, an air conditioning chamber is disposed between an air conditioning indoor unit installed on the ceiling of a room and an indoor panel, for example, and supports a filter and the like, an air outlet, a suction port, or It has a complicated shape in which an air flow path and the like for passing fresh air are partitioned.
[0003]
As a method of manufacturing such a chamber, conventionally, a method of combining sheet metal parts formed in various shapes, screwing these sheet metal parts together, and sticking a heat insulating material for preventing condensation to a required place has been adopted. In other words, it has a problem that requires a lot of time and labor for assembly.
[0004]
Moreover, because the sheet metal parts of the chamber have various shapes that are not uniform, the mold cost for manufacturing these parts is high, and these sheet metal parts are assembled into thin and elongated shapes with screws. Therefore, it has a disadvantage that the torsional strength is weak.
[0005]
[Problems to be solved by the invention]
The present invention copes with the actual situation as described above and performs foam molding simultaneously with the assembly of the component parts, thereby facilitating the production of a casing member such as a chamber and the like, and improving the torsional strength. The purpose is to reduce the cost of molds.
[0006]
[Means for Solving the Problems]
That is, the manufacturing method of the casing member of the present invention you meet the above object, a plurality of linear frames longitudinal orthogonal section is substantially identical, are disposed in the corners of the casing member, connecting these frame A molding die for a foamed resin heat insulating material is formed using a plurality of corner plates, forming engaging means for engaging the frame and the corner plate with each other and connecting the two, and having a cavity in the shape of the casing member. In the mold, the frame and the corner plate are connected to the skeleton shape of the casing member, and then the foamed resin heat insulating material is foam-molded to obtain the foamed resin heat insulating material, the frame, and the corner plate. It is characterized by integrating.
[0008]
The method of manufacturing a casing member of the present invention, a slit hole formed to the engaging means to a portion of the frame by a pawl member which engages with the slit section formed in the corner plate It is also possible to configure.
[0010]
Also, a manufacturing method of another air-conditioning casing member of the present invention, the ceiling in the longitudinal direction orthogonal cross section and a plurality of linear frames are substantially identical, are disposed on the top of the casing member, connecting these frame Forming an engagement means for engaging the frame and the top plate with each other and connecting the two, and forming a molding mold for a foamed resin heat insulating material having a cavity in the shape of the casing member. Te, by this in the mold to connect the said frame and the top plate to the skeleton shape of the casing member, forming a Chi the foamed resin insulation material foam, and the foam resin heat insulating material and the frame and the top plate It is characterized by being integrated.
[0011]
The method of manufacturing a casing member of the present invention, the engaging means, a slit formed in a part of the frame by a pawl member which engages with the slit formed in the top plate It is also possible to configure.
Furthermore, for example, a U-shape or an L-shape can be adopted as a cross section in the longitudinal direction of the frames of these casing members. The configuration in which the longitudinal cross-sections are the same in this case is that the frame is provided with slit holes and the like, and even if this slit hole or the like appears in the cross section, the frame has the same cross-sectional shape such as a U-shape. If it has an outer shape, it is interpreted that the cross-section is substantially the same. Moreover, even if the tip is tapered, the cross section is understood to be substantially the same as long as the same punching die and bending die can be shared as will be described later.
[0012]
[Action]
In the production method of the air conditioning casing member of the present invention, the skeleton shape of the casing member engaging with their frame and the corner plate or frame and the top plate by the pawl member and the like of the frame and the corner plate or top plate in the mold linked to, since the assembled casing member by a child integrally molded by resin foam heat-insulating material, it is possible to reduce more significantly the position of screwing conventional, yet integrally molded foamed resin insulation material Therefore, it is not necessary to attach a heat insulating material as in the prior art, and this makes it possible to manufacture the casing member very easily.
[0013]
Similarly, it is possible to improve the torsional strength of the casing member by integral molding of the foamed resin heat insulating material, and even if the frame has a different length, the same cross-sectional shape is used. In addition, it is possible to use one kind of bending mold, and this makes it possible to greatly reduce the production cost of the component parts by sharing the molds of these frames.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
[0015]
FIG. 1 is an exploded perspective view of a frame and a corner plate showing an air-conditioning chamber which is one of casing members according to an embodiment of the present invention. FIG. 2 is an assembled view of the same, and the chamber of this embodiment has a U-shaped cross section. A plurality of frames 1 (which may be L-shaped) and four corner plates 2 to 5 disposed at the corners of the chamber and connecting the frames 1 are provided.
[0016]
In the corners of the side wall 6 and the bottom wall 7 of the frame 1, a number of engaging slit holes 8 are formed in pairs on the left and right side walls 6 as shown in FIG. As shown in FIG. 3, the frame 1 is made of a rod-shaped metal material whose longitudinal cross section is substantially the same except for the tapered portion at the tip.
This is because long plate materials with different lengths are formed by the same punching die and bent into a U-shaped cross-section with the same bending die, or bent into a U-shaped cross-section with the same die. The frame 1 of various lengths can be produced by cutting the scale.
[0017]
On the other hand, as shown in FIGS. 5 to 8, the corner plates 2 to 5 engage with the slit holes 8 of the frame 1 so that the claw members 9 for connecting the corner plate and the frame 1 are appropriately disposed as shown in FIG. In addition, it is erected so as to be raised from the main body. The claw member 9 has a T shape, and when inserted into the slit hole 8 of the frame 1 shown in FIGS. 3 and 4 from the side, the head 9a is caught and cannot be pulled up and down. .
Various engagements between the slit hole and the claw member are conceivable. For example, as one of the claw members, the head 9a 'engages with the movement of the frame 1 in the longitudinal direction as shown in FIG. It is also possible to adopt 9 'and slit hole 8'.
Conversely, the claw members 9 and 9 ′ can be formed in the frame 1, and the slit holes 8 and 8 ′ can be formed in the corner plate 2.
[0018]
These frames 1 and corner plate 2-5, as shown in FIGS. 1 and 2 in a mold placed in a foamed resin for a thermal insulator molding die having a cavity in the shape of Chi Yanba (not shown) linked to the backbone shape of the chamber by expansion molding of the resin, to integrate with the resin foam heat-insulating material 12 as shown in FIG. 10 and the frame 1 and each corner plate 2-5.
In this case, the frame 1 and the corner plates 2 to 5 are assembled by placing and positioning the corner plates 2 to 5 at each corner in the mold , and inserting the claw member 9 into the slit hole 8 from the inside. By doing so, it can be carried out simply and efficiently.
[0019]
The frame 1 and the corner plates 2 to 5 are formed with a large number of convex portions 10 and communication portions 11, thereby connecting the foamed resin heat insulating material 12 to the frame 1 and the corner plates 2 to 5. Can be strengthened.
The chamber formed in this way is further strengthened by screwing the opposite side of each corner plate 2 to 5 of the frame 1 with another corner plate or a fixing bracket as necessary.
Further, reference numeral 15 shown in FIG. 2 and FIG. 11 is a presser fitting, and as shown in FIG.
[0020]
Thus, in the manufacturing method of the air conditioning Chang bar of the present invention embodiment, by engagement with the foamed resin insulation material 12 by the claw member 8 and the slit 9 of the frame 1 and the corner plate 2-5 by integrally molding Since the chamber can be assembled, the number of screwing points can be greatly reduced compared to the conventional one, and since the foamed resin heat insulating material is formed integrally, there is no need to apply a heat insulating material as in the conventional case. Can be made very quickly and easily.
[0021]
Similarly, the torsional strength of the chamber can be improved by integral molding of the foamed resin heat insulating material 12, and the frame 1 has the same cross-sectional shape as described above. It is possible to make a single type of mold, which makes it possible to share the molds of these frames 13 and greatly reduce the cost of creating the component parts.
[0022]
Next, FIG. 11 is an exploded perspective view showing a casing for an air conditioner indoor unit according to another embodiment of the present invention. The figure shows a state at the time of manufacture and is upside down. The board is on top.
That is, this casing surrounds an air conditioning indoor unit (not shown) from the outside, and includes a plurality of linear frames 13 having substantially the same U-shaped longitudinal cross section and an upper portion of the casing (in the figure). And a top plate 14 for connecting these frames 13 to each other.
[0023]
Each frame 13 has a T-shaped slit hole 8 formed in the same manner as the previous embodiment, and the top plate 14 has a T-shaped claw that engages with the slit hole 8. A member 9 is formed (see FIG. 3).
Then, it allowed engaging the said slit 8 and the pawl member 9, linked to the backbone geometry of the indoor unit casing as shown in FIG. 11 and the frame 13 and the top plate 14 in a molding die, foamed around by thus foam molding a resin insulation, as shown in FIG. 12 to integrate the this resin foam heat-insulating material 12 and the frame 13 and the top plate 14.
The casing formed in this way is further strengthened by screwing the opposite side of each top plate 14 of the frame 13 with another fixing bracket or the like as necessary.
[0024]
Thus, in the method for manufacturing casings grayed air conditioner indoor unit of the present invention embodiment, by engagement with the foamed resin insulation material by the claw member 8 and the slit 9 of the frame 13 and the top plate 14 in the mold Since the casing can be assembled by integral molding, it is possible to greatly reduce the number of screwing points compared to the conventional case, and since the foamed resin insulation material is molded integrally, it is also necessary to affix the insulation material as before. This makes it possible to produce the casing very quickly and easily.
[0025]
Similarly, the torsional strength of the casing can be improved by integrally molding the foamed resin heat insulating material, and the frame 13 has the same cross-sectional shape as described above. It is possible to reduce the cost of creating the component parts by sharing the molds of these frames 13.
[0026]
As mentioned above, although embodiment of this invention was described, although the expanded polystyrene (styrene) is common as the said foamed resin heat insulating material, a foamed polyurethane resin etc. can also be used for others.
In addition, the corner plate, the frame, or the top plate uses a sheet metal material in this example. However, the corner plate, the frame, or the top plate can be made of a synthetic resin or the like. Other than the groove can also be adopted.
[0027]
【The invention's effect】
As described above, the manufacturing method of the air conditioning casing member of the present invention includes a plurality of linear frames longitudinal orthogonal section is substantially identical, are disposed in a portion of the casing member, connecting these frame The plate and the plate material are engaged with each other to form an engaging means for connecting the two, and the frame and the plate material are connected to the frame shape of the casing member in the mold. Then, the foamed resin heat insulating material is foam-molded around the mold, and the foamed resin heat insulating material, the frame and the plate material are integrated. The nail of the frame and the plate material in the mold Since the casing member can be assembled by engaging with a member, etc. and integral molding with a foamed resin heat insulating material, it is possible to greatly reduce the number of screwing points compared to the conventional method, Since the heat material is formed integrally, there is no need to attach a heat insulating material as in the prior art, and this makes it possible to manufacture the casing member extremely quickly and easily. The torsional strength of the casing member can be improved by integral molding of the casing, and the frame has almost the same cross-sectional shape. Therefore, the cost for producing the component parts is limited to one die or bending die for the frame. Many effects can be achieved by greatly reducing.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a frame and a corner plate showing an air conditioning chamber according to an embodiment of the present invention.
FIG. 2 is an assembly view of the same.
FIG. 3 is a perspective view showing an engagement slit hole and a claw member.
FIG. 4 is a perspective view showing the shape of a frame.
FIG. 5 is a perspective view showing a first corner plate.
FIG. 6 is a perspective view showing a second corner plate.
FIG. 7 is a perspective view showing a third corner plate.
FIG. 8 is a perspective view showing a fourth corner plate.
FIG. 9 is a perspective view showing another example of an engagement slit and a claw member.
FIG. 10 is a perspective view showing a chamber after molding a foamed resin heat insulating material.
FIG. 11 is an exploded perspective view showing a casing for an air conditioning indoor unit according to an embodiment of the present invention.
FIG. 12 is a perspective view showing a casing for an air conditioning indoor unit after molding a foamed resin heat insulating material.
FIG. 13 is a cross-sectional view showing a presser fitting and a frame.
[Explanation of symbols]
1 Frame 2-5 Corner plate 6 Frame side wall 7 Frame bottom wall 8, 8 'Slit hole 9, 9' Claw member 9a, 9a 'Head 10 Convex part 11 Communication part 12 Foamed resin heat insulating material 13 Frame 14 Top plate 15 Presser Bracket 16 Slit 17 Claw

Claims (5)

  In an air conditioning casing member that defines an air flow path such as an air outlet and a suction port in the vicinity of an indoor unit of an air conditioner, a plurality of linear frames having substantially the same longitudinal cross-section and a casing member A plurality of corner plates arranged at the corners and connecting these frames are used to form engagement means for engaging the frames and the corner plates with each other to connect them, and the shape of the casing member Forming a molding die for a foamed resin heat insulating material having a cavity, connecting the frame and the corner plate to the skeleton shape of the casing member in the mold, and then foam-molding the foamed resin heat insulating material The method for manufacturing a casing member for air conditioning, wherein the foamed resin heat insulating material, the frame and the corner plate are integrated. Said engagement means comprises a slit formed in a part of the frame, the manufacturing method according to claim 1 Symbol placement of the air conditioning casing member comprising a claw member engaged with the slit hole formed in the corner plate . In an air conditioning casing member that surrounds an indoor unit of an air conditioner from the outside, a plurality of linear frames having substantially the same cross section in the longitudinal direction, and a top plate that is disposed above the casing member and connects these frames Forming an engaging means for engaging and connecting the frame and the top plate to each other, and forming a mold for foamed resin heat insulating material having a cavity in the shape of the casing member, In the mold, the frame and the top plate are connected to the frame shape of the casing member, and then the foamed resin heat insulating material is foam-molded to integrate the foamed resin heat insulating material, the frame and the top plate. The manufacturing method of the casing member for air conditioning characterized by the above-mentioned. The method for manufacturing an air conditioning casing member according to claim 3 , wherein the engaging means includes a slit hole formed in a part of the frame and a claw member formed in the top plate and engaged with the slit hole. The method for manufacturing a casing member for air conditioning according to any one of claims 1 to 4, wherein the longitudinal cross section of the frame is U-shaped or L-shaped.

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