JPH0640731U - Outdoor unit hood - Google Patents

Abstract

(57) [Abstract] [Purpose] Prevents snow accumulation on the top air outlet, enables upward blowing without a short circuit, and improves wind resistance. [Outer structure] An outdoor unit hood 17 attached to an outlet 7 formed on the upper surface of the outdoor unit 3. The outdoor unit hood 17 has a shape in which upper and lower cones 17a and 17b are joined together on the bottom side. The so-called abacus ball shape is integrated.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an outdoor unit hood for snow protection, and is particularly suitable for use as an outdoor unit of an air heat source package type air conditioner.

[0002]

[Prior art]

 Conventionally, in areas with a lot of snow, snow-proof hoods are installed on outdoor units of air-heat source package type air conditioners. FIG. 6 is a side view of a conventional outdoor unit hood. A blower fan 5 is provided at the upper part of the outdoor unit 3 whose side surface has become the suction port 1, and the blower fan 5 exhausts the air sucked from the suction port 1 upward from the air outlet 7 on the upper surface. There is. An elbow-shaped hood 9 is attached to the air outlet 7 of the outdoor unit 3, and the hood 9 changes the direction of the air outlet 7 from upward to horizontal. By installing such a hood 9, it is possible to prevent snow accumulation at the air outlet 7 at the time of snowfall, and also to prevent freezing of the blower fan 5, so that the air conditioner is stopped due to heat exchange failure due to the stop of the blower fan 5. It prevents the situation that it happens. In addition, when the number of outdoor units 3 is particularly large, a roof 11 covering all the outdoor units 3 may be constructed to prevent snow accumulation at the air outlet 7.

[0003]

[Problems to be solved by the device]

 However, when the elbow-shaped hood 9 is attached to the outlet 7, the outlet direction is limited to one horizontal direction. Therefore, if a large number of outdoor units 3 are installed in a certain range of installation locations, the outdoor units 3 The blown air interfered with each other, causing a so-called short circuit that sucked in the blown air of the adjacent outdoor unit 3 (see S in FIG. 7), and the air conditioner might stop due to poor heat exchange. . Further, the elbow-shaped hood 9 has a remarkably large resistance to a wind in a specific direction, and there is a fear that it may be damaged in a strong wind such as a typhoon. On the other hand, the roof 11 was sometimes constructed to prevent snow accumulation at the air outlet 7, but there was a drawback in that the equipment became large and the equipment cost increased.

The present invention has been made in view of the above circumstances, and can prevent snow accumulation at the upper surface outlet, and enable upward blowing without causing a short circuit, and further, provide resistance to wind. The objective is to provide an outdoor unit hood that has less snow, and to prevent the functional deterioration of the outdoor unit in snowfall areas and improve wind resistance.

[0005]

[Means for Solving the Problems]

 An outdoor unit hood according to the present invention for achieving the above object is an outdoor unit hood that is attached to an outlet formed on the upper surface of an outdoor unit, in which two upper and lower cones are joined on the bottom side. The feature is that it is a so-called abacus ball shape that is integrated.

[0006]

[Action]

 The air outlet is covered by the outdoor unit hood, and the blown air flows diagonally upward along the lower cone, eliminating the short circuit that sucks the blown air of the adjacent outdoor unit. In the abacus bead-shaped outdoor unit hood, the contact surface of the wind from the lateral direction is an inclined surface, which reduces the resistance to the wind. The upper conical part of the outdoor unit hood becomes a downward slope from the center toward the outer circumference, so that the snow is slippery only by its own weight.

[0007]

【Example】

 Hereinafter, preferred embodiments of an outdoor unit hood according to the present invention will be described in detail with reference to the drawings. 1 is a side view of an outdoor unit hood of the present invention, and FIG. 2 is a plan view of FIG. The same members as those shown in FIG. 6 are designated by the same reference numerals, and the duplicated description will be omitted. An outdoor unit hood 17 is provided above the air outlet 7 of the outdoor unit 3, and the outdoor unit hood 17 is a so-called abacus ball shape in which two upper and lower cones 17a and 17b are joined together at the bottom sides. Has become. The lower cone portion 17b of the outdoor unit hood 17 is provided with four legs 19 extending vertically, and the legs 19 fix the outdoor unit hood 17 to the upper surface of the outdoor unit 3. As the material of the outdoor unit hood 17, stainless steel or the like is suitable as a material having strength and rustproof property and improving sliding property in snow. When the method of joining the conical bodies 17a and 17b up and down is adopted as the method for manufacturing the outdoor unit hood 17, the outer periphery of the upper conical body 17a is made slightly larger than the outer periphery of the lower conical body 17b to overhang. It is desirable to join them in the state where they are left. As a result, it is possible to improve the waterproofness of the conical joint and the sliding property of snow. The outside diameter of the outdoor unit hood 17 is formed so as to almost cover the upper surface of the outdoor unit 3 (see FIG. 2), and the air outlet 7 of the outdoor unit 3 opening upward is directly covered by the outdoor unit hood 17. It is in a state.

FIG. 3 is a side view showing the exhaust direction of the outdoor unit, FIG. 4 is a side view showing the flow of wind to the outdoor unit hood, and FIG. 5 is a side view showing the snow accumulation state on the outdoor unit hood. As shown in FIG. 3, the upper part of the outlet 7 of the outdoor unit 3 is covered by the lower conical portion 17b of the abacus bead type outdoor unit hood 17, so that the exhaust air passage 21 extends from the central portion toward the outer peripheral side. It is ensured in a space that gradually widens upward, and exhaust gas flows radially in a diagonally upward direction along the lower conical portion 17b. This also makes it possible to secure a wider exhaust air passage 21 than the conventional elbow hood, and has the effect of reducing the exhaust resistance of the blower fan 5. Further, as shown in FIG. 4, the abacus bead-shaped outdoor unit hood 17 has an extremely small resistance against the wind because the contact surface against the wind from all lateral directions is an inclined surface. Further, as shown in FIG. 5, since the upper conical portion 17a of the outer machine hood 17 is a downwardly inclined surface from the apex toward the outer periphery, the snow is extremely slippery, and the snow is only loaded by its own weight. It will slip off the hood 17.

According to the above-mentioned outdoor unit hood 17, the exhaust air of the outdoor unit 3 escapes upward, so that it is possible to prevent a short circuit due to mutual interference between the outdoor units 3 and to reduce the resistance to the wind, so that strong wind There is no need to worry about damage due to snowfall, and the snowfall will slide off under its own weight, so maintenance such as snow removal can be greatly reduced.

Although the outdoor unit hood 17 is described as being attached to the outdoor unit of the air heat source package type air conditioner in the above-described embodiment, the outer unit hood 17 is attached to other air-cooled heat exchangers. But of course

[0011]

[Effect of device]

 As described in detail above, since the outdoor unit hood according to the present invention has an abacus bead shape, the outlet port is covered by the outdoor unit hood, snow can be prevented, and blown air escapes diagonally upward, The short circuit that sucks in the air blown from the outdoor unit does not occur, and the resistance to the wind can be reduced. In addition, since the upper conical portion of the outer machine hood has a downwardly inclined surface, the snow is slippery only by its own weight, and the snow removal can be saved. As a result, it is possible to prevent the function of the outdoor unit from deteriorating in the snowfall area and significantly improve the wind resistance.

[Brief description of drawings]

FIG. 1 is a side view of an outdoor unit hood of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a side view showing the exhaust direction of the outdoor unit.

FIG. 4 is a side view showing the flow of wind with respect to the outdoor unit hood.

FIG. 5 is a side view showing a snow accumulation state on the outdoor unit hood.

FIG. 6 is a side view of a conventional outdoor unit hood.

FIG. 7 is an explanatory diagram of a short circuit.

[Explanation of symbols]

 3 Outdoor unit 7 Air outlet 17 Outdoor unit hood 17a Upper cone (cone) 17b Lower cone (cone)

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Toshio Watanuki 1-27 Fukkamachi, Aoba-ku, Sendai-shi, Miyagi Kashima Construction Co., Ltd. Tohoku Branch (72) Inventor, Hiroshi Takahashi Tsurugaoka, Izumi-ku, Sendai-shi, Miyagi Prefecture 4-chome 11-17 (72) Creator Takuo Yamada 5-19-7-201 Shimochiai, Yono City, Saitama Prefecture

Claims (1)

[Scope of utility model registration request] 1. An outdoor unit hood attached to an outlet formed on the upper surface of an outdoor unit, which is a so-called abacus ball shape in which two upper and lower cones are joined together at the bottom sides. Outdoor unit hood.