JPS62137219A - Unit coupling structure for automobile air-conditioning device - Google Patents

Abstract

PURPOSE:To enhance the sealing ability of each component unit, and the mountability of each component unit onto a vehicle body, by forming an engaging bracket in one of coupling sections of each component unit and an engaging hook in the other coupling section so that the component units are coupled together by the engagement of both sections. CONSTITUTION:A fan unit 1 and a heater unit 3 are secured to a vehicle body by means of screws through the intermediary of brackets 1a, 3a. Then, the fan unit side flange 2e of a cooling unit 2 is pushed into between the fan unit 1 and the heater unit 3 while a seal member 5 is compressed against the flange 1c of the fan unit 1. Further, the inner surface of tongue-like part 8b of an engaging bracket 8 is superposed on the rear surface of an engaging projection 6, and the extension 8a of the engaging bracket 8 is made to abut against the peripheral surface of the engaging projection to fit an engaging hook 7 onto the engaging projection 6. With this arrangement, it is possible to enhance the sealing ability and mountability of each component unit.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a unit connection groove for an air conditioner for an automobile.

Regarding the conventional technology of air conditioning systems for automobiles, for example, Nissan Motor Co., Ltd.
47, P-84)! In the construction shown on page 488, each component unit, such as a fan unit, a cooling unit, and a heater unit, is attached to the vehicle body, and a sealing material is applied to each component unit and connected to each other.

This will be explained with reference to FIG. 1714. 1% Fan unit as one of the constituent units of an air conditioner
2 is a cooling unit arranged adjacent to this fan unit 1 as another one of the above-mentioned couple units; 3 is arranged next to this cooling unit 2;
This is a heater unit as yet another one of the above-mentioned constituent units. These fan units 1. The cooling unit 2 and the heater unit 3 are each fixed to brackets la, 2a, and 3a' protruding from the unit case with screws 4 (not shown).

In addition, the fan unit 1 and the cooling unit 21, or the cooling unit 2 and the heater unit 3, are not connected with screws, but are butted together using a sealing material such as a V-tank of 7 ohm. It's just a tangent. Specifically, the fan unit 1, heater unit 3, and kji body are installed and filtered.

Two cooling units are stored and rearranged between fan unit 1 and heater unit 8, but cV
J Field, cooling unit 2ka iI between the fan unit 1 and the heater unit 8 while compressing 5 sealing materials and applying N to the connection port 1h of the fan unit 1 of the cooling unit 2. After inserting it into the heater unit 3, move it a little towards the heater unit 3 side, equalize the degree of compression of the sealing material 5 on both sides of the cooling unit 2, and connect the connection port 2b of the cooling unit 2 and the fan unit 1. The alignment with the opening 1b, and the alignment between the connecting opening 2c of the cooling unit 2 and the connecting opening 3b of the heater unit 3, and the screw insertion hole of the platen 2a. Align this platen) 2a7 screw 4 by 1dLe with the mounting hole on the I- side.
It is fixed to the main body.

Problems to be Solved by the Invention However, at the connections between the aforementioned constituent units, that is, the connections between the fan unit 1 and the cooling unit 2, or the connections between the cooling unit 2 and the heater unit 3, the vehicle body Fan unit 1 fixed with screws 4 to
．． Between the cooling unit 2 and the heater unit 3, apply valve pressure with the sealing material 5r compressed.
It is simply a butt connection, and the # of each component unit is:
In the event that there are variations in the consistency of the connecting parts 11), 2e+, 2-c, and 3b in the width direction, the ventilation resistance at the connecting parts will increase, so Mouth parts 11), 21) and 2c, 3n (/J matching Amount V
C: It took a lot of effort to install the cooling unit SJ on the car body.

Therefore, the present invention provides a 4-ft straight unit connection structure for automotive air conditioning that can improve the sealing performance of the connecting parts of each component unit and overcome the above-mentioned problems. This is what we provide.

In order to solve the problem, in the present invention, a part of the outside of the connection port of one or a part of the two constituent units attached to the vehicle body of the air conditioner is provided. An engagement bracket t' is provided with an engagement protrusion protruding at least in one direction, and an engagement hook portion is formed at the tip at a portion corresponding to the engagement protrusion of the connection opening of the other component knit. ! The engagement hook part R of this engagement bracket engages with the engaging protrusion, and the two constituent units 1r are butted and connected.

The engagement between the engagement hook portion and the engagement protrusion of the operational engagement bracket prevents the connection ports of two adjacent structural units from being positioned in the radial direction and flight direction.

Below is a practical example, along with drawings of Embodiment 7 of the present invention, are the same reference numerals used for the same parts as the conventional V) structure? The details will be explained below.

・As shown in Figures 1 and 2, 'g! Cooling unit 2 and heater unit 3 as two adjacent C/J unit installed on the car body of air conditioner d.

Platan protruding from the unit case) 2a, gat
It can be installed as a single unit by fixing it to the vehicle body (not shown) with screws 4.

The connection port 2c of the cooling unit 2 and the connection port 3b of the heater unit 3 are connected to each other in the radial direction.
aVc protruding flanges 2d and 3c are formed over the entire circumference of 1ft. In addition, 10It''L of the cooling unit 2 and the heater unit 8 or some of the constituent units, for example, 1II1 outside the connection port 3b of the heater unit 3.
The part is equipped with an engaging protrusion B, but this v8
On the 8 side, the υ engaging protrusion 6 is the platen on the 7 lange 8c)
It consists of the part on the opposite side to the side where 3a is installed. Thirty-one layers of an R-shaped sealing material 5 are provided on the end face of the other component of the component unit υ, the claw work ring unit 2ctJ, and the flange 2d. An engagement 7' racket 87 having an engagement hook 7 formed at its tip is protruded from a portion of the cooling unit 2 corresponding to the outer portion QJ of the connection port 2C and the tray engagement protrusion 8. This engagement bracket 8a cooling unit 2v flange 2d (extended portion 8a protruding from the 0th circumference heald toward the heater unit 8 side along the center direction, and a bend formed from the tip of this extended portion 8a in the radial direction 1731111Il) l'9 of this extended portion 8a.
The engaging hook portion 7 is constituted by the fitting surface 8C and the inner surface 8d of the tongue portion 8b. This engagement hook part 7 and seal material 5'
In the rEE contracted state, engage the engagement abutment 1iOK, and butt the cooling unit 2clJ connection port 2C, the heater unit 8VJ connection port 8b, and the r sealing material 5 with brt #! Continued.

According to the structure of the above embodiment, first, the fan unit 1, the heater unit 8, and the screw 4 are fixed to the vehicle body, and then the fan unit 117 of the cooling unit 2 is connected to the flange 2eγ.
The cooling unit 2 is inserted from the direction of the arrow X between the fan unit 1 and the heater unit 8 while pressing five compressed sealants onto the fan unit IC/J flange IC. When the engagement bracket 8 approaches the engagement protrusion 6, press and sweep 6 pieces of sealing material onto the cooling unit 2'7 (heater unit) 34JjJ+, then extend and move it a little, then transfer the 2 pieces of ring enit. It moves again in the direction of arrow
Low step part 8aF side 80? By contacting the circumferential surface of the engaging protrusion 6, the engaging hook portion 7r engages with the engaging protruding portion 6. Then, the connection port 2C of the cooling unit 2 and the connection port 8b of the heater unit 8 are connected by the sealing material 5r. By engaging with the protrusion 6, both connection ports 2c,
35 is restricted from moving in the axial direction and radial direction, the two connection ports 1fB 2 c t 3 b are aligned coaxially without straightening in the radial direction and become rusted, causing the cooling unit 2 and heater unit 3 to rust. It is possible to reduce ventilation resistance at the connection part between the flange 2d and the flange 8.
With each facing space l set to the required dimensions, check the sealing performance at the connection between the cooling unit 2 and the heater unit 8. The bracket 2a attached to the vehicle body at the ICff connection point is located opposite to the bracket 2a, that is, as shown in FIG. The sealability becomes 4M lol. Moreover, the cooling unit 2 is fixed to the vehicle body with screws 4 through this butt connection, and both of the connection ports 2c
, 8b and the required opposing distance d/? Due to the engagement between the engagement hook part 7 and the engagement protrusion 6 to be set, the screw insertion hole 2f of the bracket 26 and the plate side mounting hole (not shown) and υ
The workability of screwing the bracket 2a can be improved by setting the position υ too loosely.

FIG. 3 shows a different example of the present invention, in which a portion of the engaging protrusion 6 formed on the overlapping surface 6ai with the inner surface 8d of the tongue portion 8b and the inner surface 8d of the engaging hook portion 70 are shown. ? It is formed on a tapered surface corresponding to the overlapping surface 6a of the engagement protrusion 6 to improve the engagement between the engagement hook portion 7 and the engagement protrusion 6.

Note that the present invention is applicable to the portions other than the reading section of the cooling unit 2 and the heater unit 3, for example, the fan unit 1 and the cooling unit 2 and the υg! It can also be applied to the part.

Effects of the Invention As described above, according to the present invention, the connection parts of two adjacent constituent units are coaxial with each other based on the engagement between the engagement hook part and the engagement protrusion of the engagement bracket. Not only can they be aligned, but also the axial position of the two matching component units can be prevented, improving the sealing performance of the contact parts and the installation of the component units to the vehicle body. It has a new effect.

[Brief explanation of drawings]

Figure J1 a is an exploded view of one embodiment of the present invention, Figure 2 is a front view of the same embodiment with a part cut away, and Figure 3 a
A sectional view showing a different example of the present invention, FIG. 4 is a part of the structure υ of the connecting part of the component unit of a conventional air conditioner. It is a front view cut away and shown. l...Fan unit (constituent unit), 2...Cooling unit TS unit), 8...Heater unit (constituent unit), 6...Engaging protrusion, 7...
Engagement hook portion, 8... engagement bracket. 8: A color gradient Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] An engaging protrusion is provided protrudingly on at least a part of the outer side of the connection port of one of the two adjacent constituent units attached to the vehicle body of the air conditioner, and the other constituent unit is connected. An engagement bracket having an engagement hook formed at its tip is protruded from a portion of the opening corresponding to the engagement protrusion, and the engagement hook of the engagement bracket is engaged with the engagement protrusion. A unit connection structure for an air conditioner for an automobile, characterized in that the two constituent units are butt-connected to each other.