Top board structure of high place installation type air conditioner

一种空调机、顶板的技术，应用在空调系统、照明和加热设备、空间供热和通风等方向，能够解决易产生褶皱、不能满足设计基准、形状复杂等问题

Inactive Publication Date: 2010-05-05
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] However, there are problems at this time: the rigidity and strength are reduced, and how to deal with vibration when driving the fan
[0021] However, after actually thinning, if it is the above-mentioned existing structure (that is, the top plate with radial reinforcing ribs), the static deflection will increase and the first-order natural frequency will decrease. Therefore, it cannot meet the existing product level. design basis
[0022] In addition, the number of reinforcing ribs is large and the shape is complicated. Therefore, when stamping, not only the cost of the metal mold increases, but also wrinkles, cracks, warping, etc. are prone to occur.

Method used

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  • Top board structure of high place installation type air conditioner
  • Top board structure of high place installation type air conditioner
  • Top board structure of high place installation type air conditioner

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0083] figure 1 and figure 2 The ceiling structure of the high place installation type air conditioner which shows the 1st Embodiment of this invention is shown.

[0084] The top plate 32 is constructed to be most suitable for use with the already described Figure 41 ~ Figure 43 The structure on the main body casing 3 of the ceiling-embedded air conditioner (indoor unit) is the same as that shown in the prior art example.

[0085] In addition, the plate thickness t of the top plate 32 is thinner than the conventional 0.8 mm, and is formed to be about 0.6 mm, for example figure 1 As shown, the shape of the top plate 32 is substantially hexagonal corresponding to the shape of the box-shaped main body casing 3 of the ceiling-embedded air conditioner. And, on the outer periphery of the ceiling 32, an edge portion 32c having a hook-shaped cross section is provided. Figure 41 ) on the outer peripheral side of the upper end.

[0086] In addition, if figure 1 As shown, five...

no. 2 example

[0089] image 3 and Figure 4 The roof structure of the high-altitude air conditioner according to the second embodiment of the present invention is shown.

[0090]At this time, on the top plate 32, there are mixed and formed: parallel reinforcing ribs 35 and non-parallel reinforcing ribs 36 arranged in parallel. The non-parallel portion 36b extending at a predetermined angle is constituted. That is, parallel reinforcing ribs 35 are formed at the outermost positions and central positions in the width direction of the top plate 32 , and non-parallel reinforcing ribs 36 are formed between the parallel reinforcing ribs 35 . In addition, the non-parallel portions 36b of the respective non-parallel reinforcing ribs 36 extend outward at right angles from respective ends of the parallel portions 36a. In addition, a flat portion is formed between the reinforcing ribs 35 , 36 each having a trapezoidal cross section. The rib width w is substantially equal to the distance D between t...

experiment example

[0094] In order to actually confirm the above-mentioned effect, that is, the effect of the number and arrangement of the reinforcing ribs 35 and 36 that affect the characteristics of the top plate 32, various sample top plates (sample No. 1 to sample No. 14) were produced. The maximum deflection and resonant speed of the top plates of these samples were analyzed.

[0095] In this analysis (FEM analysis), finite element analysis software (manufactured by EDF Corporation, I-DEASMS9m2 Model Solution) was used.

[0096] (1) Sample NO.1

[0097] Such as Figure 5 As shown, the top plate 32 is provided with: a plurality of main reinforcing ribs 32a extending radially from the approximately central portion 33 to the outer peripheral portion and recessed downward, having a predetermined width and a predetermined depth; On the outer peripheral side, a stepped portion 32b with a small downward recess; and a plurality of sub-reinforcing ribs 34 adjacent to the main reinforcing rib 32a ...

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PUM

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Abstract

A top board structure of a high place installation type air conditioner, wherein a plurality of parallel reinforcement ribs (35) arranged parallel with each other are formed on a top board (32) forming the top face of a body casing and suspendedly supporting a fan and a fan motor. When the plate thickness of the top board is equal to that of a conventional one in which radial reinforcement ribs are formed, the maximum deflection thereof is smaller than that of the conventional one and, accordingly, the resonance rotational speed is higher than that of the conventional one.

Description

technical field [0001] The invention relates to a roof structure of an air conditioner installed at a high place. Background technique [0002] A high-placed air conditioner (indoor unit) such as a ceiling-embedded type or a ceiling-suspended type in a house has, for example, a box-type main body case whose top surface is made of a metal top plate. In the state where heavy objects such as fans, fan motors, heat exchangers, drain pumps, and switch boxes are suspended from the ceiling, the main body casing is buried in the ceiling or suspended on the lower surface of the ceiling using suspension bolts, etc., so that The air conditioner is installed on the ceiling of the house. [0003] As an example of such a high place installation type air conditioner, Figure 41 ~ Figure 43 Indicates a ceiling-mounted air conditioner. [0004] In this air conditioner, if Figure 41 ~ Figure 43 As shown, the air conditioner main body 1 is disposed above the opening 7 formed in the ceiling ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F1/00F24F1/0047F24F1/0059F24F13/32
CPCF24F13/32F24F2001/0037F24F13/20F24F1/0007F24F1/0047F24F1/0059F24F1/00
Inventor 刘继红
Owner DAIKIN IND LTD
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