JPH08169226A - Receiver dryer attaching structure - Google Patents

Abstract

PURPOSE: To enhance attaching performance of pipes for condenser and evaporator. CONSTITUTION: A bracket 16 is equipped with an extension part 25 curvedly extended on a bracket main body part 17 so as to face an upper surface part 8 of a receiver dryer 4. A bracket fitting internal thread 23 and a bolt insertion hole 26 are respectively formed in the upper surface part 8 and the extension part 25. Since the bracket fitting internal thread 23 of the receiver dryer 4 is positioned to the bolt insertion hole 26 and the receiver dryer 4 is fixed to the bracket 16 by thread-engaging of the bracket fitting internal thread 23, a pipe block, further, pipes for condenser and evaporator can be properly and easily attached and attachability can be enhanced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a receiver dryer mounting structure used in an automobile air conditioner.

[0002]

2. Description of the Related Art An example of a conventional receiver dryer mounting structure will be described with reference to FIGS. FIG. 8 shows an example of an automobile air conditioner in which a receiver dryer is used. This automobile air conditioner 1 includes a compressor 2, a condenser 3, a receiver dryer 4, and an evaporator 5.
And a pipe 6 that connects the above-mentioned members to each other to form a refrigeration cycle. Receiver dryer 4
9 includes a substantially cylindrical housing 7 whose both ends are closed as shown in FIG. 9, a filter housed in the housing 7, and a desiccant (not shown). On the upper surface portion 8 of the housing 7, there are refrigerant inlet / outlet holes 9 and 10 through which refrigerant gas flows in and out, and two female screws (block female screws) provided respectively corresponding to the refrigerant inlet and outlet holes 9 and 10.
11 and 11 are formed.

The refrigerant inlet hole 9 has a pipe block 1 at its end.
The liquid refrigerant from the condenser 3 is communicated with the condenser 3 through a pipe (hereinafter, referred to as a condenser pipe for convenience sake) 6a connecting 2 to each other.
Let it flow in. The refrigerant outlet hole 10 communicates with the evaporator 5 via a pipe (hereinafter, the pipe is referred to as an evaporator pipe for convenience) 6b having a pipe block 12 connected to an end thereof, and a filter and a desiccant remove dust and water. The liquid refrigerant thus produced is caused to flow out to the evaporator 5.

Pipe 6 for condenser / evaporator
The pipe blocks 12 and 12 connected to a and 6b have one opening for the condenser / evaporator pipe 6a,
A coolant passage 13 and a bolt insertion hole (hereinafter, referred to as a block-side insertion hole) 14 that are respectively connected to 6b are formed. The other opening of the refrigerant passage 13 is made to face the refrigerant inlet / outlet holes 9 and 10, and the block side insertion hole 14 is made to face the female screw for block 11 so that the pipe block 12 is mounted on the upper surface portion 8 of the housing 7. Then, the block bolt 15 is screwed into the block internal thread 11 through the block-side insertion hole 14 to form the pipe block 1.
2 is fixed to the receiver dryer 4.

On the other hand, the receiver dryer 4 is attached to the vehicle body (not shown) side via a bracket 16. The bracket 16 includes a plate-shaped bracket main body 17 extending along a side surface of the receiver dryer 4, a rectangular mounting portion 18 connected to a side portion of the bracket main body 17 and attached to the vehicle body, and a bracket main body. The stay portion 20 that is formed on the lower end side of the portion 17 and is in contact with the lower surface portion 19 of the housing 7 and the plate-shaped body are bent in a substantially ring shape along the outer periphery of the receiver dryer 4 (housing 7) , And a clamp member 21 fixed to the bracket body 17 by spot welding. A clamp material bolt 22 is screwed into the opening ends 21a, 21a of the clamp material 21, and the clamp material 21 is reduced in diameter by tightening. The receiver dryer 4 is fixed by being inserted into the clamp material 21 and tightening both open end portions 21 a of the clamp material 21 with the clamp material bolts 22.

[0006]

By the way, the receiver dryer 4 has a condenser / evaporator pipe 6a,
By connecting the receiver dryer 4 in the vertical direction and the rotation direction (circumferential direction) when connecting the 6b, the connection can be properly performed. However, in the mounting structure of the receiver dryer 4 described above, the vertical position of the receiver dryer 4 is determined by placing the receiver dryer 4 on the stay portion 20, but since there is no alignment means for the rotation direction, Pipe 6
When connecting a and 6b, the receiver dryer 4 could not be set to a proper position. Therefore, the pipe block 1
2, and then the condenser / evaporator pipe 6
It was sometimes difficult to attach a and 6b. In addition, there is a case where the block bolt 15 is screwed into the block internal thread 11 to fix the pipe block 12 to the receiver dryer 4 without proper alignment. In such a case, unnecessary force is applied to the condenser. -The evaporator pipes 6a and 6b may be acted and bent.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a receiver dryer mounting structure capable of improving the mountability of a condenser / evaporator pipe.

[0008]

According to the first aspect of the present invention,
Pipe blocks are connected to the end portions of the condenser / evaporator pipes, respectively, and the pipe blocks are communicated with the refrigerant inlet / outlet holes formed on the upper surface of the receiver dryer, and through the bolt insertion holes formed in the pipe block. In the receiver dryer mounting structure, the block mounting bolt is screwed and fixed to the female screw for block formed on the upper surface of the receiver dryer, and the receiver dryer is mounted on the vehicle body side through the bracket.
The bracket is a plate-shaped bracket main body that extends along a side surface of the receiver dryer, and an attachment portion that is connected to the bracket main body and is attached to the vehicle body side,
A semi-circular arc-shaped clamp part that is connected to the bracket main body along the outer periphery of the receiver dryer, a stay part that is bent and connected to the bracket main part so as to face the lower surface of the receiver dryer, and a receiver. A bracket mounting female screw consisting of an extension part that is bent and extended in the bracket main body part so as to face the top surface part of the dryer, and a bracket mounting bolt is screwed into each of the top surface part of the receiver dryer and the extension part of the bracket. And a bolt insertion hole through which the bracket mounting bolt is inserted.

According to a second aspect of the present invention, in the structure according to the first aspect, the extension portion is formed to extend to a mounting portion of at least one of the pipe blocks on the upper surface portion of the receiver dryer. And each of the bracket mounting female screw and the bracket mounting bolt, respectively, one block female screw corresponding to the one pipe block, and one block mounting bolt screwed to the one block female screw. It is characterized in that it is also used in.

According to a third aspect of the present invention, in the structure according to the second aspect, a cutout into which the extension portion is inserted is formed in the one pipe block.

[0011]

In the structure of claim 1, the receiver dryer is inserted into the space between the stay portion and the extension portion of the bracket, and the receiver dryer is rotated by the guide of the clamp portion, and the bracket of the receiver dryer is inserted into the bolt insertion hole. Align the mounting female screw, and in this state, insert the bracket mounting bolt into the bolt insertion hole and screw it into the bracket mounting female screw.

According to the second aspect of the present invention, the bolt insertion hole of the extension portion is aligned with one of the female threads for blocks, and in this state, the pipe block, the receiver dryer and the bracket are fixed with the block mounting bolts.

According to the structure of claim 3, the extension portion is inserted into the notch of the pipe block.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS.
It will be described based on. The members shown in FIG. 8 and FIG.
The same members and parts as the parts are designated by the same reference numerals, and the description thereof will be omitted as appropriate.

1 to 5, a bracket mounting female screw 23 is formed on the upper surface 8 of the housing 7 of the receiver dryer 4 adjacent to the refrigerant inlet hole 9.

The bracket 16 includes a plate-shaped bracket body 17 extending along the side surface of the receiver dryer 4,
A rectangular mounting portion 18 that is formed so as to be connected to a side portion of the bracket body portion 17 and is attached to the vehicle body side, and a semicircle or less that is connected to the bracket body portion 17 along the outer peripheral portion of the receiver dryer 4 having a radius R Arc-shaped clamp part 24
And a stay portion 20 that is bent and connected to the bracket body portion 17 so as to face the lower surface portion 19 of the receiver dryer 4,
It is generally configured by a plate-shaped extension 25 which is bent and connected to the bracket body 17 so as to face the upper surface 8 of the receiver dryer 4. The extension portion 25 has a bolt insertion hole 2
6 is formed. The clamp portion 24 has a radius R.

In the receiver dryer mounting structure thus configured, the receiver dryer 4 is moved laterally (horizontal direction) and inserted into the space between the extension portion 25 of the bracket 16 and the stay portion 20, and the housing When the outer peripheral portion of 7 contacts the clamp portion 24, the lateral movement is stopped, the receiver dryer 4 is rotated along the clamp portion 24, and the bracket mounting female screw 23 is aligned with the bolt insertion hole 26. The rotation is stopped at the aligned stage. In this state, the bracket attachment bolt 27 is screwed into the bracket attachment female screw 23 through the bolt insertion hole 26 to fix the receiver dryer 4 to the vehicle body side via the bracket 16.

At this time, as described above, the bracket attachment bolt 27 is screwed into the bracket attachment female screw 23 through the bolt insertion hole 26, whereby the receiver dryer 4 is reliably positioned in the rotational direction, and the stay portion 20 is provided.
When the receiver dryer 4 is placed on, the vertical positioning is performed.

Next, the block bolts 15 are screwed into the block internal threads 11 through the block side insertion holes 14 so that the receiver dryer 4 is piped to the pipe block 12, and thus the condenser / evaporator pipes 6a and 6b.
In this case, since the receiver dryer 4 is positioned in the rotation direction and the vertical direction as described above, the pipe block 12, and hence the condenser / evaporator pipes 6a, 6b are properly mounted. Moreover, it can be easily mounted, and the mountability can be improved.
In addition, the bracket insertion female screw 23 is inserted into the bolt insertion hole 26.
When rotating the receiver dryer 4 when aligning the
Since the clamp part 24 guides the receiver dryer 4,
Positioning can be performed easily and the assembly time can be shortened.

In the above-mentioned conventional technique, the substantially ring-shaped clamp material 21 is welded to the bracket 16 and is fastened by using the clamp material bolts 22. Since the material 21 and the clamp bolt 22 are omitted, the number of parts can be reduced and the number of bolt mounting steps can be reduced accordingly.
Further, since the welding work is unnecessary, the productivity can be improved accordingly.

Further, in the above-mentioned conventional technique, it is possible that the block bolt 15 is screwed into the block internal thread 11 to fix the pipe block 12 and the receiver dryer 4 in a state where the pipe block 12 and the receiver dryer 4 are not set in the proper positions. In such a case, unnecessary force may act to bend the condenser / evaporator pipes 6a and 6b.
In the present embodiment, since proper positioning can be performed as described above, such a problem does not occur.

Next, a receiver dryer mounting structure according to a second embodiment of the present invention will be described with reference to FIGS. 6 and 7. The members shown in FIGS. 1 to 5, 8 and 9 are
The same members and parts as the parts are designated by the same reference numerals, and the description thereof will be omitted as appropriate. The second embodiment is different from the first embodiment in that the bracket mounting female screw 23 and the bracket mounting bolt 27 are omitted, the clamp portion 24 is omitted, and instead of the extension portion 25 of the first embodiment. The main difference is that an extension portion 25A having the following structure is provided and a cutout 28 is formed in the pipe block 12. The extension portion 25A of the second embodiment is bent and connected to the bracket main body portion 17, and extends to the mounting portion of the pipe blocks 12, 12 on the upper surface portion 8 of the receiver dryer 4. . Holes (hereinafter referred to as bracket-side insertion holes) 29, 29 are formed in the extension portion 25A so as to face the female threads 11 for block of the housing 7.

On the other hand, a cutout 28 into which a part of the extension portion 25A is inserted is formed at the receiver dryer 4 side portion of the pipe block 12.

In the receiver dryer mounting structure thus constructed, the receiver dryer 4 is moved laterally (horizontal direction) and inserted into the space between the extension portion 25A of the bracket 16 and the stay portion 20, Side insertion hole 29
And the female screw for block 11 of the housing 7 are aligned with each other, and the insertion is stopped when they coincide.

At this time, as described above, the position of the female screw for block 11 is aligned with the insertion hole 29 on the bracket side so that the receiver dryer 4 is aligned in the rotational direction, and the receiver dryer 4 is placed on the stay portion 20. By doing so, the vertical positioning is performed.

Next, the pipe blocks 12, 12 are arranged on the extension portion 25A and the upper surface portion 8 of the receiver dryer 4 so that the extension portion 25A is inserted into the notch 28. In this case, since the extension portion 25A is inserted into the notch 28, the pipe blocks 12, 12 can be reliably and quickly positioned with respect to the extension portion 25A. Then, the block bolt 15 is screwed into the block female screw 11 of the housing 7 through the block-side insertion hole 14 and the bracket-side insertion hole 29, and the pipe block 12, the receiver dryer 4, and the bracket 16 are fastened together to form a condenser. And the evaporator pipes 6a, 6b and the receiver dryer 4 are assembled.

As described above, since the receiver dryer 4 is aligned and positioned in the rotational direction and the vertical direction, the pipe block 12, and thus the condenser,
The evaporator pipes 6a and 6b can be properly and easily attached, and the attachability can be improved.

Further, in the above-mentioned conventional technique, the substantially ring-shaped clamp material 21 is welded to the bracket 16 and the clamp material bolt 22 is used to tighten it. Since the clamp member 21 and the clamp member bolt 22 are omitted, the number of parts can be reduced and the number of bolt mounting steps can be reduced accordingly. Furthermore, since welding work is unnecessary, only that much,
Productivity can be improved.

Further, in the above-mentioned conventional technique, it is possible that the block bolt 15 is screwed into the block internal screw 11 to fix the pipe block 12 and the receiver dryer 4 in a state where the pipe block 12 and the receiver dryer 4 are not set in the proper positions. In such a case, unnecessary force may act to bend the condenser / evaporator pipes 6a and 6b.
In the present embodiment, since proper positioning can be performed as described above, such a problem does not occur. Further, in this embodiment, since the notch 28 into which the extension portion 25A is inserted is formed in the pipe block 12, the height of the upper surface portion of the pipe blocks 12, 12 is higher than that in the case where the notch 28 is formed.
Since it becomes lower by that amount, it is possible to make the entire apparatus compact.

In the above embodiment, the extension portion 25A extends to the mounting portion of both pipe blocks 12, 12, but instead of this, at least one of the pipe blocks 12, 12 is piped. It may be configured to extend to the mounting portion of the block 12. Further, although the clamp portion 24 is omitted in the second embodiment, the same clamp portion 24 as in the first embodiment may be provided.

[0031]

According to the first aspect of the present invention, the bracket mounting female screw of the receiver dryer is aligned with the bolt insertion hole, and the receiver dryer is fixed to the bracket by screwing the bracket mounting bolt. Capacitor / evaporator pipes can be properly and easily mounted, and the mountability can be improved. Further, since the clamp portion guides the rotation of the receiver dryer, it becomes easy to align the position and the assembly can be speeded up. Weld a substantially ring-shaped clamp material to the bracket and tighten it with clamp material bolts. Compared to the conventional technology, the clamp material and clamp material bolts are omitted, so the number of parts and the number of bolt mounting steps Can be reduced. Further, since welding work is unnecessary, productivity can be improved accordingly.

According to the second aspect of the present invention, since the bolt insertion hole of the extension is aligned with one of the female threads for the block, the pipe block and by extension, the condenser / evaporator pipe can be properly and easily attached. It is possible to improve the sex.

According to the third aspect of the present invention, since the extension portion is inserted into the notch of the pipe block, the pipe block can be surely and quickly positioned with respect to the extension portion.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a mounting structure of a receiver dryer according to a first embodiment of the present invention.

FIG. 2 is a plan view showing a bracket of the receiver dryer mounting structure.

FIG. 3 is a side view showing a bracket of the receiver dryer mounting structure.

FIG. 4 is a plan view showing a receiver dryer in the receiver dryer mounting structure.

FIG. 5 is a front view showing a receiver dryer in the receiver dryer mounting structure.

FIG. 6 is an exploded perspective view showing a receiver dryer mounting structure according to a second embodiment of the present invention.

FIG. 7 is a side view schematically showing the mounting structure of the receiver dryer.

FIG. 8 is a piping system diagram schematically showing an example of an automobile air conditioner.

FIG. 9 is an exploded perspective view showing an example of a conventional receiver dryer mounting structure.

[Explanation of symbols]

 4 Receiver Dryer 6a, 6b Capacitor / Evaporator Pipe 7 Housing 8 Top Surface 9,10 Refrigerant Inlet / Outlet Hole 12 Pipe Block 17 Bracket Main Body 18 Attachment 24 Clamp 25, 25A Extension

Claims (3)

[Claims] 1. A pipe block is connected to an end portion of a condenser / evaporator pipe, and the pipe block is connected to a refrigerant inlet hole / outlet hole formed in an upper surface of a receiver dryer and formed in the pipe block. In the receiver dryer mounting structure, the block mounting bolt is screwed and fixed to the female screw for block formed on the upper surface of the receiver dryer through the bolt insertion hole, and the receiver dryer is mounted on the vehicle body side through the bracket. Is a plate-shaped bracket main body extending along the side surface of the receiver dryer, a mounting portion connected to the bracket main body and attached to the vehicle body side, and a bracket main body so as to follow the outer peripheral portion of the receiver dryer. A semi-circular arc-shaped clamp that is connected to the It consists of a stay part bent and connected to the bracket main body so as to face the lower surface of the dryer, and an extension part bent and extended to the bracket main part so as to face the upper surface of the receiver dryer. A receiver dryer mounting structure characterized in that a bracket mounting female screw into which a bracket mounting bolt is screwed and a bolt insertion hole into which the bracket mounting bolt is inserted are formed in each of the upper surface portion and the extension portion of the bracket. 2. The receiver dryer mounting structure according to claim 1, wherein the extension portion is formed to extend to a mounting portion of at least one of the pipe blocks on an upper surface portion of the receiver dryer. Also, each of the bracket mounting female screw and the bracket mounting bolt is also used as one block female screw corresponding to the one pipe block and one block mounting bolt screwed to the one block female screw. The installation structure of the receiver dryer, which is characterized. 3. The receiver dryer mounting structure according to claim 2, wherein a cutout into which the extension is inserted is formed in the one pipe block.