JPS585622Y2 - Air conditioning case for automotive air conditioner - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of an air conditioning case that houses an evaporator in an automobile air conditioner.

Automotive air conditioners are installed horizontally (perpendicular to the direction of travel) within the narrow space of a car, so an air conditioning case (same term as evaporator case or cooling case) is used to house the evaporator. be.

) is also small and it is necessary to configure the case so that the work of attaching the case is easy.

This type of evaporator is equipped with a control device consisting of an expansion valve, a temperature-sensitive cylinder, etc., and adjusts the amount of refrigerant sent to the evaporator to keep the degree of superheat constant. Since control equipment is vulnerable to external shocks, it is desirable to provide sufficient protection for it.

In order to meet the above requirements, this idea was developed to house the evaporator control equipment in an air conditioning case that is made by combining two halves of an upper and lower case, with the fireboard side of the car protruding to include the dividing line. A control equipment storage part is formed, and a mounting bolt is inserted into the control equipment storage part by being inserted between the upper and lower cases, and the threaded part of the mounting bolt protrudes from the fireboard of the automobile toward the engine room side. It is an object of the present invention to provide a two-tone case that has a small width in the lateral direction, is easy to install, and can sufficiently protect the control equipment of the evaporator.

Next, an embodiment of this invention will be described with reference to the drawings.

1 to 3, an air conditioning case 1 of the automobile air conditioner of this invention is shown, and this air conditioning case 1 is composed of an upper case 1a and a lower case 1b divided from a dividing line 2, and the upper case The lower case 1a and the lower case 1b are connected by a clip 3 and are placed on the side of the passenger compartment 6 of the automobile.

An evaporator 4 is disposed within this air conditioning case 1, and the evaporator 4
For example, the evaporator is a laminated type in which molded plates with tank portions formed on the upper and lower sides and corrugated fins are alternately laminated, and is disposed within the rectangular parallelepiped-shaped evaporator storage portion 5.

On the back of the air conditioning case 1, there is a blower (
A blown air port 9 is formed for guiding blown air (not shown) into the air conditioning case, and a drain portion 10 is provided on the lower surface side of the blown air port 9.

This drain section 10 is for storing condensed water generated from the evaporator 4 and discharging it to the outside through a drain hole 10a provided in the drain section 10.

Furthermore, a blow air outlet 11 is formed protruding from the front side of the evaporator storage section 5, and the cold air cooled by the evaporator 4 is delivered to the vehicle through a blow-off duct (not shown) connected to the blow air outlet 11. It is blown out into chamber 6.

The control device storage section 12 is box-shaped and is formed to protrude from the evaporator storage section 5 toward the fire board 8 side of the automobile. On the back side, the fire is diagonally from top to bottom.
The side surface on the board 8 side is formed horizontally.

Inside this control equipment storage part 12, an expansion valve 13, a temperature sensing cylinder 1
An evaporator control device 15 consisting of 4 etc. is arranged, and an expansion valve 1
3 is connected to the inlet vibe 16 of the evaporator, and the temperature sensing tube 14 is fixed to the outlet vibe 17 of the evaporator.

The inlet vibrator 16 and outlet vibrator 17 of the evaporator protrude from holes 18.19 formed in the control equipment housing 12 to the fire board 8 side, and further protrude from holes 20.21 formed in the fire board 8 to the engine room 7 side. It sticks out.

The holes 18 and 19 of the control equipment storage section 12 are located in the upper and lower cases 1a.
, 1b are joined at the parting line 2, and a rubber gasket 22° is provided between the hole 18.19 and the inlet and outlet vibes 16.17. 23 is interposed.

The mounting bolt 24 is provided on the dividing line 2 between the two pipes 16 and 17 in the control equipment storage section 12, and protrudes toward the fire board 8 side, and the details of the mounting structure are shown in FIG. ing.

In FIG. 4, the upper and lower cases 1a and lb of the air conditioning case 1
is formed by scraping the inside of the upper and lower cases 1a at the joint parts 1a' and 1b', and the lower case 1b
The surface joint part 1a is formed by scraping off the outside of the
The upper and lower cases 1a and 1b are joined by fitting into the cut-out portions of the other case.

The joint parts 1 a' and 1 b' have the same structure even in the control equipment storage part 12, and grooves 25 and 26 are formed in the joint parts 1 a' and 1 b' in the control equipment storage part 12, respectively. , the grooves 25 and 26 are formed so as to align when the upper and lower cases la and lb are fitted together.

This groove 25.26 has a threaded portion 24a of the mounting bolt 24.
is inserted.

In addition, the bolt head 24 a of the mounting bolt 24 is the lower case 1
The bolt head 2 of the mounting bolt 24 is fitted into a cross-sectional holding part 27 that protrudes inward from the mounting bolt 24.
4 b is held down.

Then, the bolt head 24 b of the mounting bolt 24 and the lower case 1
A washer 28 is interposed between the joint part 1b' of the mounting bolt 24b, and a nut 29 is screwed into the threaded part 24b of the mounting bolt 24, which protrudes toward the fire board 8 side. A washer 3 is installed between the joint part 1a' of 1a.
0 is interposed.

This nut 29 functions as a spacer to maintain a gap with the fire board 8, and by tightening it, the upper and lower cases 1a and 1b can be fixed.

Furthermore, the tip of the threaded portion 24C of this mounting bolt 24 projects from a hole 31 formed in the fire board 8 toward the engine room 7 side, and the mounting nut 32 is screwed into the projected threaded portion 24C. The air conditioning case 1 is fixed to a fire board 8 via a control equipment storage section 12.

The air conditioning case 1 is also fixed to the fire board 8 by other mounting bolts 33 fixed to the upper case 1a, for example, and by other mounting parts 34 provided at appropriate positions.
, 35 are also fixed to the passenger compartment 6 side of the automobile.

As described above, according to this invention, the fireboard side of the automobile is made to protrude to form a box-shaped control equipment storage area, so expansion valves, thermosensors, etc. can be stored in this control equipment storage area. , it is possible to improve the mounting strength.

In addition, since the mounting bolts for attaching to the fireboard are inserted between the upper and lower cases for measurement, the installation work of the mounting bolts is easy, and the upper and lower cases can also be fixed using the mounting bolts. This is what we are doing.

Furthermore, since the mounting bolts are fixed so as to protrude from the fireboard toward the engine room, the air conditioning case can be mounted from the engine room, making it extremely simple.

[Brief explanation of the drawing]

Figures 1 to 4 show an embodiment of this invention; Figure 1 is a front view of the storage case, Figure 2 is a plan view thereof, and Figure 3 is a side view of the storage case as seen from direction A in Figure 2. FIG. 4 is an enlarged sectional view of the main part. a... Upper case, 1b... Lower case,
2...Dividing line 8...Fire board, 12...Control equipment storage section 13...Expansion valve, 14...Temperature sensing Cylinder, 15...Control equipment, 24...Mounting bolt, 24a...
- Threaded part, 31... Hole of fire board.

Claims (1)

[Scope of utility model registration request] In an air-conditioning case for an automobile air-conditioning system, which is formed by combining two divided upper and lower cases, the fireboard side of the automobile is protruded to include the dividing line, and an evaporator control device consisting of an expansion valve, a temperature-sensing cylinder, etc. At least one mounting bolt is inserted and fixed into the control equipment storage part by the upper and lower cases, and the threaded portion of the mounting bolt is inserted into the engine through the hole formed in the fire board. An air conditioning case for an automobile air conditioner, characterized in that it projects toward the room side.