JPS6246108Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a heating and cooling system for an automobile.

The air-conditioning system of an automobile is operated by operating an outlet switching lever or button located near the driver's seat to direct warm air from a heat exchanger, combustor, etc. or cold air from an evaporator and outside the vehicle to a center ventilator as shown in Figure 4. 51, the air is supplied into the vehicle interior through desired outlets such as the side ventilator 52, the console side 53, and the defroster 54, and performs indoor heating, indoor cooling, cooling the head and feet, heating the room, blowing air into the room, dehumidifying the windshield, etc.

Conventionally, this type of hot or cold air was supplied into the vehicle interior by operating an air outlet switching lever (not shown) to a desired indication scale position, as shown in FIG. 55 etc., actuates the relay link 56 arranged at a predetermined location, and transmits the operation of this relay link 56 to the on-off valves 58, . . . of the ventilation passage via the rod or link system 57, etc. This is done by opening and closing one or more of them.

For this reason, there are various improvements to be made, such as ease of assembly of wires and the like during assembly, and securing of space for arranging wires and the like.

In order to improve the operability of the outlet switching lever, a motor unit 59 is provided opposite the relay link 56 as shown in FIG. 6, and each on-off valve 58 is operated by operating the outlet switching switch. However, in this case, the motor unit 59
There are difficulties in assembly workability during assembly, such as positioning.

In view of the above-mentioned circumstances, the present invention aims to simplify the assembly work by using the mounting hole of the conventional relay link support shaft as the positioning hole of the motor unit, and to fasten the motor unit to the positioning hole. Compatibility with conventional devices is maintained by operating the actuating piece of the motor unit using the mounting bolt as a support shaft.The motor unit is installed by fastening the mounting bolt to the mounting hole of the relay link support shaft. established,
The air conditioning system for an automobile is characterized in that an actuating piece of a motor unit that opens and closes an on-off valve is formed so as to be freely operable using the mounting bolt as a support shaft.

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

FIG. 1 is a cross-sectional side view of the main part of the device, FIG. 2 is a front view thereof, and FIG. 3 is a perspective view of a modified example of the actuating piece.

1 is a motor unit; 2 is a box-shaped case body; bolt guide holes 4 are opened in the upper plate 3 of the case body 2; 6 is formed protrudingly.

The periphery of the opening 5 of the upper plate part 3 extends inside the case main body 2 and is formed into a cylindrical bolt guide part 7, which is inserted through the window hole 9 of the bottom plate part 8 to open the bottom plate part. 8, and a lower end locking portion 10 is locked to a mounting seat 11 of a conventional relay link support shaft.

A mounting bolt 14 is inserted into the bolt guide hole 4 via washers 12 and 13, and the lower end threaded portion 1
5 is screwed into the screw hole 16 for the relay link support shaft.

In addition, a locking piece 17 is provided at the tip of the corner of the case body 2.
A leg portion 18 is provided vertically, and the locking piece 17 and the mounting surface 19 are screwed together via a set screw 20 and a washer 21.

A step motor 22 is fitted into the motor holding portion 6 and can be rotated by a required angle by operating an air outlet changeover switch provided at the driver's seat, and a drive gear 24 is fixed to a drive shaft 23 of the step motor 22. .

A cylindrical actuating member 26 having a driven gear 25 formed on the upper part that can freely mesh with the driving gear 24 is rotatably fitted into the bolt guide part 7, and the circumferential body part 27 of the actuating member 26 is connected to the driving gear 24. Window hole 9 in bottom plate part 8
An actuating piece 28 is formed at the lower end of the actuating member 28, which is inserted therethrough and exposed from the bottom plate portion 8, and protrudes outward in the radial direction.

A joint member 29 is attached to the tip of the actuating piece 28, and the distance between the joint member 29 and the axis of the mounting bolt 14, the height of the joint member 29 from the mounting seat 11, etc. are the same as those of the conventional relay link 56. The coupling member 29 is dimensioned to connect to a conventional rod or link system 57.

The actuating piece 28 is actuated around the axis of the mounting bolt 14 through the step motor 22, the driving gear 24, and the driven gear 25 by operating the outlet changeover switch, and is formed to act in the same manner as the conventional interrupting link 56. .

Since the present invention is configured as described above, when the outlet changeover switch is operated, the step motor 22 rotates forward or backward by the required angle, and the actuating piece 28 is connected to the conventional relay link via the driving gear 24 and the driven gear 25. 56, and by the operation of the actuating piece 28, the predetermined on-off valves 58,... are opened and closed via the joint member 29, rod or link system 57, and hot or cold air is delivered from the desired outlet to the passenger compartment. be sent to.

What is shown in FIG. 3 is a modification of the actuating piece 28. In this case, a movable piece 31 is provided with a fitting groove 30 formed in the base and a joint member 29 attached to the tip. The distal end of the actuating piece 28 is fitted into the fitting groove 30 to integrate the actuating piece 28 and the movable piece 31,
The distance between the mounting bolt 14 and the joint member 29 is adjusted and set by tightening the set screw 32, and the present invention is compatible with various relay links 56 having different sizes and shapes.

According to the present invention, the mounting hole of the relay link support shaft is used as the mounting bolt hole of the motor unit, and the actuating piece is operated in the same way as the relay link using the mounting bolt as the support shaft, so that the motor unit can be easily assembled during assembly. positioning, stroke adjustment of the actuating piece, etc. can be done easily and quickly, and even when electrifying the conventional wire method, it is easy to do without making any design changes to the relay link mounting seat, rod or link system, on-off valve, etc. It has many practical effects, such as electrifying on-off valves in heating and cooling equipment at the lowest possible cost.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional side view of the main part of the device according to the present invention,
Fig. 2 is a front view of the same, Fig. 3 is a perspective view showing a modification of the actuating piece, Fig. 4 is an explanatory diagram of the air outlet in the passenger compartment, and Fig.
6 and 6 are explanatory diagrams of the operation of the conventional device. In the drawing, 1 is the motor unit, 2 is the case body, 14 is the mounting bolt, 22 is the step motor,
28 is an actuating piece.

Claims (1)

[Scope of utility model registration request] In an automobile air-conditioning system equipped with a relay link that links an air outlet switching lever provided near the driver's seat and an on-off valve provided in the ventilation path, a mounting bolt is fastened to the mounting hole of the relay link support shaft to connect the motor. 1. A heating and cooling system for an automobile, characterized in that a motor unit is disposed therein, and an operating piece of a motor unit for opening and closing the opening/closing valve is formed to be freely operable with the mounting bolt as a pivot.