JPH0645364Y2 - Vehicle air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Field of Use of the Invention> The present invention relates to a vehicle air conditioner.

<Prior Art> As a conventional air conditioner for a vehicle, there is known one as shown in FIGS. 5 to 7 (refer to Japanese Utility Model Publication No. 62-32887).

This vehicle air conditioner 1 is formed by connecting a blower case 2, a cooler case 3 and a heater case 4, and these cases are connected by a structure called L-shaped fitting. FIG. 7 shows this L-shaped fitting structure between the cooler case 3 and the heater case 4. That is, each of the cooler case 3 and the heater case 4 is formed with L-shaped outer overlapping surfaces 5 and 5 and L-shaped inner overlapping surfaces 6 and 6 at the ends thereof. And the inner overlapping surfaces 6 and 6 are overlapped with each other with a urethane sealing packing 7 sandwiched therebetween as shown in FIGS. 5 and 6, whereby the cooler case 3 and the heater case are fitted to each other. It connects and connects. Although not shown in detail, the blower case 2 and the cooler case 3 are also fitted and connected in substantially the same manner.
In FIG. 1, 8 is an intake unit, 9 is a blower, and 10 is a blower.
Is an evaporator, and 11 is a heater core. Also,
Reference numeral 12 in FIG. 6 is a protrusion formed for holding the sealing packing 7.

<Problems to be Solved by the Invention> However, in this conventional vehicle air conditioner 1, as shown in FIG. 6, the moisture H condensed in the cooler case 3 is closer to the heater case 4 side than the blower case 2. There is room for improvement in that the moisture H easily penetrates into the fitting portion due to the influence of the ventilation W flowing through the water and the moisture H accelerates the deterioration of the sealing packing 7.

<Means for Solving the Problems> In order to solve the above problems, in the present invention, an overlapping surface is formed at each end of the cooler case and the other case, and the respective overlapping surfaces are used for sealing between them. The cooler case and another case are connected to each other by sandwiching the packing, and the lower edge of the overlapping surfaces of the end of the cooler case is an outer overlapping surface, and In a vehicle air conditioner in which a lower edge of an end of another case corresponding to the outer overlapping surface is an inner overlapping surface, an outer overlapping surface of the lower edge of the end of the cooler case and an inner overlapping of another case corresponding thereto. On the inner side of the cooler case with respect to each of the sealing packings of the surface, there are provided ridges formed so that the front ends thereof are close to each other. <Operation> That is, In the cooler case and other cases, since the ridges are formed on the inner surface of the cooler case where the condensed water is present on each overlapping surface of the end lower edge that is most susceptible to the moisture, this ridge is, so to speak, Since it serves as a waterproof bank and prevents water from entering the overlapped area, it is possible to prevent the phenomenon of accelerated deterioration of the seal packing due to water.

<Embodiment> An embodiment of the present invention will be described below with reference to FIGS. In the following description, the same parts as those of the above-described conventional example will be denoted by the same reference numerals, and overlapping description will be omitted.

The vehicle air conditioner 20 includes a ridge 23 to a ridge 24 on each of the outer overlapping surfaces 21, 21, 21 and the inner overlapping surfaces 22, 22, 22 of the blower case 2, the cooler case 3, and the heater case 4.
Are staggered. The ridges 23 and 24 are arranged so that the respective tips 25 and 26 are close to each other on the inner side of the cooler case 3 with respect to the sealing packing 7, that is, on the side where the condensed water H exists. Is formed. More specifically, the protrusion 23 of the outer overlapping surface 21 is located at the base end portion of the outer overlapping surface 21 and the protrusion 24 of the inner overlapping surface 22.
Are formed at the tips of the inner overlapping surfaces 22, respectively.

As shown in FIGS. 2 and 3, these ridges 23 and 24 function as waterproof dikes against moisture H, and prevent moisture H from overlapping and entering the fitting portion. Therefore, in the vehicle air conditioner 20, it is possible to prevent the phenomenon of the deterioration of the sealing packing 7 due to the moisture H from being accelerated, and it is possible to realize more excellent durability.

<Effect of the Invention> As described above, the vehicle air conditioner according to the present invention has the outer overlapping surface of the lower edge of the end of the cooler case and the corresponding inner overlapping surface of the other case with respect to the sealing packing. At the inner side of the cooler case, there are ridges that are formed so that the tips are close to each other, so this ridge is a waterproof levee to prevent moisture from entering the overlapping surface area, The phenomenon of accelerated deterioration of the seal packing is eliminated and the durability is improved accordingly.

[Brief description of drawings]

FIG. 1 is a schematic sectional view of a vehicle air conditioner according to the present invention, FIG. 2 is an enlarged view of an arrow II portion of FIG. 1, and FIG. 3 is an enlarged view of an arrow III portion of FIG. FIG. 4 is a schematic exploded perspective view of a connection portion between a cooler case and a heater case in a vehicle air conditioner according to the present invention. FIG. 5 is a schematic cross-sectional view of a conventional vehicle air conditioner. 5 is an enlarged view of a VI portion indicated by an arrow in FIG. 5, and FIG. 7 is a schematic exploded perspective view of a connection portion between a cooler case and a heater case in a conventional vehicle air conditioner. 1, 20 …… Vehicle air conditioner 2 …… Blower case 3 …… Cooler case 4 …… Heater case 5, 21 …… Outer overlapping surface 6, 22 …… Inner overlapping surface 7 …… Seal packing 23, 24… … Ridge

Claims (1)

[Scope of utility model registration request] 1. A cooler case by forming an overlapping surface at each end of a cooler case and another case, and by making the respective overlapping surfaces overlap with each other with a sealing packing interposed therebetween. And the other case are connected to each other, and the lower edge of the overlapping surfaces of the end portion of the cooler case is the outer overlapping surface, and the lower edge of the end of the other case corresponding to the outer overlapping surface is the inner side. In a vehicle air conditioner that is an overlapping surface, the outer overlapping surface of the lower edge of the end of the cooler case and the corresponding inner overlapping surface of the other case, respectively, at the inner side of the cooler case with respect to the seal packing, the tip. A vehicular air-conditioning device, characterized in that the ridges formed so that the parts are close to each other are provided so as to be staggered.