JP3820732B2 - Pipe connection device for air conditioning - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air conditioning piping connection device that connects indoor air conditioning piping and outdoor air conditioning piping using a block joint.
In the detailed description of the present invention, the side to which the outdoor air-conditioning piping is connected is referred to as the front side, and the side different from the side to which the outdoor air-conditioning piping is connected is referred to as the rear side. That is, the description will be made with the outdoor side as the front side with respect to the firewall and the indoor side as the rear side with respect to the firewall.
[0002]
[Prior art]
When connecting an indoor air-conditioning pipe and an outdoor air-conditioning pipe using a block joint in an automotive air conditioner, this block joint is inside a hole in a firewall that divides the room from the outside, or in a hole in a bracket that is fixed to the air-conditioning case. To be positioned in the vertical and horizontal directions.
[0003]
[Problems to be solved by the invention]
However, when the firewall and the indoor air conditioning case are close to each other, it is difficult to position the block joint in the front-rear direction. In particular, since the block joint is not fixed forward, there is a problem that it is difficult to perform the pipe separation work for removing the outdoor air-conditioning pipe from the block joint.
[0004]
OBJECT OF THE INVENTION
This invention is made | formed in view of said situation, The objective is to provide the piping connection apparatus for air conditioning which can prevent the movement to the front of a block joint.
[0005]
[Means for Solving the Problems]
The air-conditioning pipe connection device of the present invention employs the following technical means.
[Means of Claim 1]
According to the first aspect, the abutment portion abuts against the firewall or the bracket, so that the block joint is prevented from moving forward. For this reason, at the time of pipe separation work for removing the outdoor air conditioning pipe from the block joint, even if the block joint is pulled forward, the block joint is fixed and does not move forward, so the pipe separation work can be easily performed.
[0006]
Further, according to the first aspect , parts for the contact portion are not necessary, and the cost and weight can be reduced.
[0007]
[Means of claim 2 ]
According to the second aspect , the rear of the block joint is brought into contact with the rib of the air conditioning case, so that the backward movement of the block joint is prevented. For this reason, at the time of pipe connection work for connecting the outdoor air-conditioning pipe to the block joint, even if the block joint is pushed backward, the block joint is fixed and does not move backward, so the pipe connection work can be easily performed.
That is, by adopting claim 2 , the movement of the block joint in the front-rear direction is restricted, and both the pipe connection work and the separation work become easy.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described based on examples and modifications.
(Example)
1 to 6 show an embodiment adopting the present invention. FIG. 1 is a perspective view of a block joint and a bracket, FIG. 2 is a side view of an air conditioning piping connection device, and FIG. 3 is a front view of the bracket. 4 and 5 are a front view and a side view of the block joint, and FIG. 6 is a cross-sectional view taken along the line II of FIG.
[0009]
The air-conditioning pipe connection device includes two indoor air-conditioning pipes 3 connected to an evaporator (not shown) in an air-conditioning case 2 disposed close to the firewall 1 in the vehicle interior, and in the engine room (outside the vehicle compartment). The two outdoor air-conditioning pipes (not shown) connected to the capacitor (not shown) arranged in the above are connected at the through hole portion of the firewall 1.
The air-conditioning pipe connecting device includes two indoor air-conditioning pipes 3 fixedly provided and a block joint 4 provided so that two outdoor air-conditioning pipes can be connected from the front. The block joint 4 is fitted in a hole 5a formed in a bracket 5 fixed to the front side of the air conditioning case 2, and positioning in the left-right and up-down directions is performed.
[0010]
As shown in FIG. 1, the block joint 4 is provided with an abutting portion 4a that abuts on the bracket 5 at an intermediate portion in the front-rear direction. The abutting portion 4a abuts on the bracket 5 so that the block joint 4 Movement to the front is restricted.
The abutting portion 4a is a surface facing the front side of the cutout portion 4b having a shape cut from the front side to the intermediate portion toward the rear side on the side surface of the block joint 4. In this embodiment, the cutout portion 4b is the block joint 4b. It is provided in the upper and lower corner parts.
[0011]
As shown in FIG. 2, the bracket 5 is screwed to the air conditioning case 2 after the block joint 4 is assembled in the hole 5 a.
On the other hand, the air conditioning case 2 is provided with a rib 2a that abuts on the rear surface of the block joint 4 assembled to the air conditioning case 2 by the bracket 5 and restricts the block joint 4 from moving backward.
[0012]
As a result, the block joint 4 assembled to the air conditioning case 2 by the bracket 5 is fitted into the hole 5a and the movement in the left-right and front-rear directions is restricted. The movement is restricted, and the backward movement is restricted by the contact between the rear portion of the block joint 4 and the rib 2a of the air conditioning case 2. That is, the block joint 4 is restricted from moving in the left-right, up-down, and front-back directions.
[0013]
(Effect of Example)
As described above, since the block joint 4 assembled to the air conditioning case 2 by the bracket 5 is restricted from moving in the left, right, up, down, and front and rear directions, two outdoor air conditioning pipes are connected to the block joint 4 from the engine room side. When connecting and removing two outdoor air-conditioning pipes from the engine room side from the block joint 4, the block joint 4 does not move even if a load is applied to the block joint 4. Can be done easily.
[0014]
[Modification]
In the embodiment example above, with the abutment portion 4a is shown an example of restricting the forward movement of the block joint 4 is brought into contact with the bracket 5, it is brought into contact with the abutment portion 4a in firewall 1 block The forward movement of the joint 4 may be restricted.
[Brief description of the drawings]
FIG. 1 is a perspective view of a block joint and a bracket.
FIG. 2 is a side view of the air conditioning piping connection device.
FIG. 3 is a front view of the bracket.
FIG. 4 is a front view of a block joint.
FIG. 5 is a side view of the block joint.
6 is a cross-sectional view taken along the line II of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Fire wall 2 Air conditioning case 2a Rib 3 Indoor air conditioning piping 4 Block joint 4a Contact part 4b Notch part 5 Bracket 5a Bracket hole

Claims (2)

The indoor air-conditioning pipe is fixed and provided, and the block joint provided so that the outdoor air-conditioning pipe can be connected is provided in the hole provided in the firewall partitioning the room and the outside, or in the bracket fixed to the air-conditioning case A pipe connection device for air conditioning to be fitted in the hole,
The block joint is provided with an abutting portion that abuts against the firewall or the bracket at an intermediate portion between the side to which the outdoor air conditioning pipe is connected and the opposite side thereof,
This abutting portion abuts against the firewall or the bracket, and restricts the block joint from moving to the side to which the outdoor air conditioning pipe is connected ,
The abutting portion is a surface on the side to which the outdoor air conditioning pipe is connected in a cutout shape in which a portion from a side where the outdoor air conditioning piping is connected to a middle portion toward the opposite side on a side surface of the block joint is cut. A piping connection device for air conditioning characterized by being. In the air-conditioning pipe connection device according to claim 1 ,
The block joint is different from the side to which the outdoor air-conditioning pipe is connected, the side different from the side to which the outdoor air-conditioning pipe is connected to a rib provided in the air-conditioning case, and the block joint is different from the side to which the outdoor air-conditioning pipe is connected. A piping connection device for air conditioning characterized by restricting movement to the side.

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