JP3013277U - Blower casing - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose is to improve the casing of the blower so as to absorb the sound generated by the rotation of the impeller and the flow of air. [Structure] The sound absorbing material is partially or wholly attached to the inner wall surface of the casing side plate that constitutes the blower. At this time, the sound absorbing material is also attached to the discharge port of the casing back plate, Alternatively, a part made of a sound absorbing material is used.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a casing of an air conditioner installed in a ceiling, a ceiling surface, a floor or a wall surface of a living room, a ventilation device, a humidifier, and a dehumidifier.

[0002]

[Prior art]

 FIG. 4 is a cross-sectional explanatory view of a blower F that is used by being incorporated in a conventional device, that is, an air conditioner, a ventilation device, a humidifier, a dehumidifier, etc. It is stored in a box, and when such a box is not used, the silencer K is connected to the discharge port or the suction port of the blower as shown in FIG.

[0003]

[Problems to be solved by the device]

 None of the above noise reduction measures can provide sufficient noise reduction effect despite the price increase and the installation space increase. The present invention aims to solve the above problems effectively and economically.

[0004]

[Means for Solving the Invention]

 The feature of the present invention is that the sound absorbing material is attached partially or entirely to the inner wall surface of the casing side plate that constitutes the blower, and at this time, the sound absorbing material is also attached to the discharge port of the casing back plate. Wear it, or use a part of it made of sound absorbing material.

[0005]

[Action]

 The noise inside the casing caused by the rotation of the impeller and the flow of air can be reduced through the sound absorbing material attached to the side plate, and the sound absorbing material near the discharge port of the casing back plate is discharged by the blower. The sound can be reduced.

[0006]

【Example】

 FIG. 1 shows a casing of a blower embodying the present invention, where A is a longitudinal sectional view and B is a lateral sectional view. Reference numeral 1 denotes a casing body, and an impeller 2 is supported between the left and right side plates 1a and 1b. 1c is a casing back plate. In the above, the sound absorbing material 3 such as urethane foam is attached to the inner wall surfaces of the left and right side plates forming the casing. The sound absorbing material 3 has a wall thickness of about 20 mm.

Although the sound absorbing material 3 is attached to the inner wall surfaces of the left and right side plates 1a and 1b of the casing in the above embodiment, the sound absorbing material 3 may be attached to the inner surface side of the casing back plate 1c. Alternatively, the casing back plate 1c itself may be partially or wholly made of a sound absorbing material, and in the case of being partially made of a sound absorbing material, it is necessary to target the vicinity of the discharge port of the casing. It is extremely effective in suppressing the discharge sound. FIG. 2 shows this state, where A is a vertical sectional view and B is a sectional view.

FIG. 3 shows a structure in which the sound absorbing material 3 is attached to the inner wall surfaces of the left and right side plates 1a, 1b, and the vicinity of the discharge port of the casing back plate 1c is partially constituted by the sound absorbing material. , B are sectional views.

[0009]

[Effect of device]

 The present invention is implemented as described above, and the sound absorbing material is attached to the casing of the blower itself, or a part of the casing is replaced with the sound absorbing material. It is possible to omit the extra box and silencer for the purpose of silencing without changing the size, which is economical and contributes to compactness while saving space.

[Brief description of drawings]

1 shows a casing of a blower embodying the present invention, in which A is a longitudinal sectional view and B is a lateral sectional view.

2A and 2B show another example in which A is a vertical sectional view and B is a horizontal sectional view.

FIG. 3 shows another example, in which A is a longitudinal sectional view and B is a lateral sectional view.

FIG. 4 shows a conventional device.

FIG. 5 shows a conventional device.

[Explanation of symbols]

 1 Casing body 1a, 1b Side plate 1c Back plate

Claims (5)

[Scope of utility model registration request] 1. A casing of a blower, wherein a sound absorbing material is partially or entirely adhered to an inner wall surface of a casing side plate which constitutes the blower. 2. The casing of the blower according to claim 1, wherein a sound absorbing material is attached to a discharge port of a casing back plate which constitutes the blower. 3. A casing of a blower, wherein a discharge port of a casing back plate constituting the blower is formed of a sound absorbing material. 4. The casing of the blower according to claim 1, wherein a discharge port of a casing back plate constituting the blower is attached with a sound absorbing material. 5. The blower casing according to claim 1, wherein a discharge port of a casing back plate constituting the blower is formed of a sound absorbing material.