JPS6144900Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a ceiling-suspended cooling unit for automobiles.

A conventional ceiling-suspended cooling unit for an automobile, for example, a conventional ceiling-suspended cooling unit for an automobile 2 installed in a one-box car 1 as shown in FIGS. The Shirotsuko fan 4 has an Atsupah case 5 and a lower case 6 in which the Shirotsukou fan 4 is built-in, and a Shirotsukou fan driving motor 8 that partially protrudes between the Atsupa case 5 and the ceiling 7 and is attached downwardly to the Atsupa case 5. It is attached to the rotating shaft 9 of the motor 8 between the upper case 5 and the lower case 6 so that its central suction opening 4A faces downward, and an air suction opening 10 is provided at a location corresponding to the central suction opening 4A of the lower case 6. is formed. In the figure, reference numeral 11 indicates a cooling unit cover, 12 indicates a passenger, and 13 indicates a screwdriver fan mounting nut.

In general, automotive ceiling-suspended cooling units need to be thin in order to ensure occupant safety and visibility, but as shown in Figures 1 and 2, the motor 8 and Sirotsukofan fan in conventional cooling units are The combination of 4 has the disadvantage that it is difficult to reduce the thickness because the height cannot be made below a certain level. In addition, in the above-mentioned Sirotskov fan blower, in order to reduce the amount of protrusion from the ceiling, the air suction port 10 must be directed downward, that is, toward the passenger compartment. Therefore, there is an inconvenience that drain water discharged from the cooling unit passes through the blower and falls into the passenger compartment.

In order to eliminate such conventional inconveniences, for example, the third
As shown in the figure, an air suction port 10 is formed in the upper case 5 toward the ceiling 7, and the Shirotsuko fan 4 is arranged so that its central suction opening 4A faces upward corresponding to the air suction port 10, The motor 8 is connected to the air suction port 10.
It has been proposed that the cooling fan be mounted concentrically to the fan, and that at least a portion of the fan in the axial direction is disposed within the central suction port 4A of the Sirotskov fan 4. Number 14 in the diagram
Reference numeral 15 indicates a support bracket for mounting the motor 8 in the center of the air suction port 10, and 15 indicates a mounting bolt for the bracket 14.

However, in such a cooling unit, since the air inlet 10 of the blower is formed toward the ceiling 7 in the upper case 5, if the ceiling lining sags, the air flowing from the passenger compartment to the air inlet 10 will be removed. The intake passage becomes a labyrinth, increasing ventilation resistance, or the flow area of the air intake passage is narrowed, resulting in a problem that a sufficient amount of air suction cannot be secured.

This invention was made in view of the above problems, and it not only ensures a sufficient amount of air intake by the blower, but also prevents the drain water of the heat exchanger from falling into the passenger compartment through the blower part. Another object of the present invention is to provide a ceiling-suspended cooling unit for an automobile, which allows the entire unit to be made thinner.

This invention consists of a case suspended from the ceiling of a car, a motor attached to the case, a Shirotzko fan attached to the rotating shaft of the motor and placed inside the case, and a central suction opening of the Shirotzko fan. and an air suction port correspondingly formed in the case, the air suction port being formed on the bottom surface of the case toward the passenger compartment, and the sirotskov fan having a central suction opening. arranged so as to face downward corresponding to the air suction port, and
The motor is attached to the air suction port, and at least a portion of the motor in the axial direction is located within the central suction opening of the Sirotskov fan, and the lower surface of the case where the air suction port is formed is positioned from the lower side of the heat exchanger of the case. The above objective is achieved by setting the heights of the two surfaces to be at least the same level or higher.

Embodiments of the present invention will be described below with reference to the drawings.

In this embodiment, parts that are the same as or corresponding to those of the automobile ceiling-suspended cooling unit shown in FIGS. 1 to 3 will be designated by the same reference numerals, and a description thereof will be omitted.

This embodiment, as shown in FIG.
an air suction opening 10 formed in the cases 5, 6 corresponding to the central suction opening 4A of the Sirotskov fan 4;
In the ceiling-suspended cooling unit 2 for automobiles, the air suction port 10 is formed on the lower surface of the lower case 6 facing toward the vehicle interior, and the central suction opening 4A of the Shirotsuko fan 4 corresponds to the air suction port 10. The motor 8 is attached to the air suction port 10, and at least a portion of the motor 8 in the axial direction is located within the central suction opening 4A of the Sirotskov fan 4. The lower surface of the lower case 6 on which the opening 10 is formed is at least at the same level or higher than the lower side of the heat exchanger 3 of the lower case 6.

Therefore, in this embodiment, the lower surface of the lower case 6 near the blower is arranged at a height equal to or higher than the lower surface of the lower case 6 below the heat exchanger 3, so that the drain water in the heat exchanger 3 is Since the drain water does not flow into the blower side, it is possible to prevent drain water from falling into the vehicle compartment via the blower part.

Further, the air suction port 10 is opened downward toward the vehicle interior, and the motor 8 is connected to the Shirotsuko fan 4.
Since at least a part of the central suction port 4A of the blower is disposed inside the central suction port 4A, the height in the vertical direction can be reduced.
Atsupa case 5 and lower case 6 in the vicinity
Since the cooling unit is at the same level as, that is, substantially horizontal, the height of the entire cooling unit can be reduced.

Since the present invention is constructed as described above, it is possible to ensure a sufficient amount of air intake by the blower and to make the automotive ceiling-suspended cooling unit thinner, thereby ensuring safety and visibility for the occupants, as well as heat exchange. This has an excellent effect of preventing the drain water of the container from falling into the vehicle compartment.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing a conventional automotive ceiling-suspended cooling unit, Fig. 2 is a schematic cross-sectional view of the same,
FIG. 3 is a schematic cross-sectional view showing an improved example of the conventional cooling unit, and FIG. 4 is a schematic cross-sectional view showing an embodiment of the ceiling hanging cooling unit according to the present invention. 1...Car, 2...Cooling unit, 3
...Heat exchanger, 4...Shirotskov fan, 4A...
Central suction opening, 5...Atsupa case, 6...Lower case, 7...Ceiling, 8...Motor, 9...Rotating shaft, 10...Air suction port.

Claims (1)

[Scope of utility model registration request] A case suspended from the ceiling of an automobile, a motor attached to the case, a Shirodskov fan attached to the rotating shaft of the motor and disposed within the case, and the above-mentioned one corresponding to the central suction opening of the Shirodskov fan. an air suction port formed in a case; the air suction port is formed on the bottom surface of the case toward the passenger compartment; The motor is arranged so as to face downward corresponding to the air intake, and the motor is attached to the air suction port, and at least a portion of the motor in the axial direction is located within the central suction opening of the Sirotskov fan, and the air suction port is formed. A ceiling-suspended cooling unit for an automobile, characterized in that the lower surface of the case is at least the same level or higher than the lower side of the heat exchanger of the case.