JP2004150707A - Liquid receiver integrated type condenser - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid receiver integrated type condenser with simplified manufacturing process even when manufacturing receiver integrated type condensers with different receiver fixing positions. <P>SOLUTION: A protruding part 161c is formed on a portion 161b contacting only a right header tank 130 of a body part of a plate 160 to improve rigidity. Consequently, when caulking a pawl part 162b on a protrusive part 135 of the right header tank 130 and temporarily fixing an assembly of the receiver 150 and the plate 160, an undertaking tool for holding down the body part of the plate 160 is not necessary. In such manner, the manufacturing process can be simplified even when manufacturing condensers with different receiver 150 fixing positions. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a receiver integrated condenser in which a condensing core for condensing a refrigerant, and a receiver for separating the refrigerant flowing out of the condensing core into two gas-liquid layers and storing a liquid layer refrigerant are integrated. The present invention is suitably applied to, for example, a vehicle refrigeration cycle device.
[0002]
[Prior art]
Conventionally, a pair of left and right header tanks arranged at both ends in the longitudinal direction of a plurality of tubes through which the refrigerant flows and communicating with the inside of the tubes, and one of the header tanks of the pair of header tanks are temporarily interposed via a plate member. A liquid receiver integrated condenser comprising: a liquid receiver that stores the liquid layer refrigerant by separating the refrigerant condensed in the tube and flowing out of the one header tank into two gas-liquid layers while being brazed and fixed after being fixed. There is a vessel.
[0003]
As such a receiver-integrated condenser, for example, the center of the receiver 250 is orthogonal to the center of the header tank 230 in the longitudinal direction of the tube 211 as shown in FIG. What is fixed eccentrically in the direction is known. And, for example, a plate member 260 as shown in FIG.
[0004]
The plate member 260 includes a main body 261 formed in a crank shape, and claws 262a and 262b formed on the outer periphery of the main body 261. When the liquid receiver 250 is temporarily fixed to the header tank 230, first, the claw portion 262a is crimped to the liquid receiver 250 to temporarily fix the liquid receiver 250 and the plate member 260. 262b is caulked to the header tank 230, and the structure including the liquid receiver 250 and the plate member 260 is temporarily fixed to the header tank 230.
[0005]
When the structure composed of the liquid receiver 250 and the plate member 260 is temporarily fixed to the header tank 230, a caulking stress is applied to the claw portion 262b (upper claw portion 262b in FIG. 4) in the direction of the arrow, and the plate member 260 is pressed. The portion (261b in the figure) of the main body 261 where the header tank 230 is formed only on one side tends to deform in a direction away from the header tank 230 by this urging force. In order to prevent this deformation, a receiving jig for holding down the portion 261b is provided in the claw portion 262b in the caulking step.
[0006]
[Problems to be solved by the invention]
However, the receiver-integrated condensers having different fixing positions of the receiver (for example, the condenser in which the receiver is fixed to the left header tank and the condenser in which the receiver is fixed to the right header tank) are the same. When the condenser is manufactured using the above-described production line, the work of changing the holder must be performed each time a condenser having a different fixing position is produced, and the production process becomes complicated.
[0007]
SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and is a liquid receiving device capable of simplifying a manufacturing process even when manufacturing a liquid receiving device integrated condenser in which fixing positions of liquid receiving devices are different. An object is to provide a body condenser.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, in the invention described in claim 1,
A pair of header tanks (120, 130) disposed at both ends in the longitudinal direction of the plurality of tubes (111) through which the refrigerant flows, and communicating with the inside of the tubes (111);
The refrigerant fixed to one header tank (130) of the pair of header tanks (120, 130) and condensed when flowing through the tube (111) and flowing out of the one header tank (130) A liquid receiver (150) for storing a liquid layer refrigerant by being separated into two gas-liquid layers;
A plate member (160) provided between one of the header tank (130) and the liquid receiver (150) and comprising a main body (161) and a claw (162) formed on the outer periphery of the main body (161). With
The claw (162) is swaged to one header tank (130) and the liquid receiver (150), and the liquid receiver (150) is orthogonal to the one header tank (130) in the longitudinal direction of the tube (111). Eccentric in the direction and temporarily fixed,
The header (130) and the plate member (160), and the plate member (160) and the receiver (150) are brazed to each other, so that the receiver (150) is connected to the one header tank (130). In the receiver integrated condenser fixed to the
The main body (161) of the plate member (160) has a first main body (161a) having one header tank (130) and a liquid receiver (150) formed on both sides, and one header tank (161) on only one side. 130) or a second main body (161b) on which a liquid receiver (150) is formed,
The second main body (161b) is characterized in that a protrusion (161c) is formed.
[0009]
According to this, of the main body (161) of the plate member (160), the second main body (161b) in which one of the header tanks (130) or the liquid receiver (150) is formed only on one side is a protruding portion. The rigidity can be improved by (161c). Therefore, a holder for holding down the second main body (161b) in the caulking step is not required. In this manner, the manufacturing process can be simplified even when manufacturing the receiver integrated condenser (100) in which the fixing position of the receiver (150) is different.
[0010]
Further, in the invention according to claim 2, the protrusion (161c) is characterized in that it has substantially the same thickness as the main body (161).
[0011]
According to this, the projection (161c) can be easily formed by press working or the like when manufacturing the plate member (160).
[0012]
In the invention according to claim 3,
The claw portion (162) of the plate member (160) includes a first claw portion (162a) formed on the first main body portion (161a) and a second claw portion (162b) formed on the second main body portion (161b). )
The second claw portion (162b) is characterized in that the length is formed to be longer than the length of the first claw portion (162a).
[0013]
According to this, the second claw portion (162b) can be caulked with a caulking stress smaller than that of the first claw portion (162a). Therefore, the second main body (161b) is not easily deformed in the caulking step, and the caulking can be performed reliably.
[0014]
Further, the invention according to claim 4 is characterized in that the brazing material is clad on the surface of the plate member (160).
[0015]
According to this, when fixing the liquid receiver (150) to the one header tank (130), the step of supplying the brazing material to the brazing joint can be omitted. Therefore, the manufacturing process can be further simplified.
[0016]
Note that the reference numerals in parentheses attached to the respective means indicate the correspondence with specific means described in the embodiment described later.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0018]
In the present embodiment, a condenser integrated with a receiver according to the present invention is applied to a refrigeration cycle device for a vehicle. FIG. 1 is an overall schematic configuration diagram of a condenser 100 integrated with a receiver.
[0019]
1 includes a core portion 110, a left header tank 120, a right header tank 130, a liquid receiver 150, and the like. Each member is made of aluminum or an aluminum alloy. And are assembled by fitting, caulking, fixing with a jig, or the like, and are integrally brazed with a brazing material or the like previously provided on the surface of each member.
[0020]
The core portion 110 is a strength member in which a plurality of tubes 111 and a plurality of fins 112 through which a refrigerant flows are alternately laminated, and which opens in a U-shaped cross section further outside the upper and lower outermost fins 112. Are provided, and are integrally brazed.
[0021]
A pair of header tanks 120 and 130 (left header tank 120 and right header tank 130) extending in the stacking direction of tubes 111 at the left and right portions of core portion 110 in FIG. Is provided. Each of these header tanks 120 and 130 is provided with a plurality of tube holes (not shown). The ends of the tubes 111 are fitted and brazed into the tube holes, and the tubes 111 and both header tanks are connected to each other. 120 and 130 communicate with each other.
[0022]
The longitudinal ends of the side plates 113 are also brazed to the header tanks 120 and 130. The openings 121 and 131 at the longitudinal ends of the header tanks 120 and 130 are closed by brazing the lid member 140. The lid member 140 extends toward the side plate 113, and is brazed to the side plate 113 so as to improve the strength of the condenser 100.
[0023]
Also, in each of the header tanks 120 and 130, separators 122 and 132 that partition the internal space at the same vertical position in FIG. 1 are brazed. An inlet joint 123 is brazed above the separator 122 of the left header tank 120, and an outlet joint 124 is brazed below the separator 122, so as to communicate with the inside of the left header tank 120.
[0024]
The liquid receiver 150 includes a substantially cylindrical liquid receiving tank 151 that forms a main body formed by extrusion processing, and lid members 152 and 153 that close openings 151a at both longitudinal ends of the liquid receiving tank 151. Have. The cover member 152 is provided with a contact portion 152a that comes into contact with the right header tank 130, and the liquid receiver 150 is fixed to the right header tank 130 via the contact portion 152a and the plate (the plate member of the present embodiment) 160. The right header tank 130 and the inside of the liquid receiver 150 communicate with each other through communication passages 171 and 172 provided so as to sandwich the separator 132.
[0025]
Note that the fixing structure of the liquid receiver 150 to the right header tank 130 via the plate 160 is a feature of the present invention, and details thereof will be described later.
[0026]
In the condenser 100 configured as described above, the inlet joint 123 is connected to a discharge side of a compressor in a refrigeration cycle device (not shown), and the outlet joint 124 is connected to an expansion valve (not shown). Then, the refrigerant discharged from the compressor flows from the inlet joint 123 into the left header tank 120, flows through the tubes 111 above the separators 122 and 132, exchanges heat with external air, and is condensed and liquefied. Further, the refrigerant flows into the liquid receiver 150 from the right header tank 130 and the communication passage 171 and is separated into gas and liquid. The liquid-phase refrigerant of the gas-liquid separated refrigerant is further supercooled from the communication passage 172 and the right header tank 130 in the group of tubes 111 below the separators 122 and 132, and flows out from the outlet joint 124.
[0027]
Next, the main part of the present invention will be described in detail with reference to FIGS. FIG. 2 is a plan view showing an assembled state of the liquid receiver 150 to the right header tank 130, and FIG. 3 is a front view of the plate 160 as viewed from the right in FIG.
[0028]
Each of the header tanks 120 and 130 (only 130 is shown in FIG. 2) is a cylindrical body having a substantially elliptical cross section, and is formed here by extrusion. As described above, the liquid receiver 150 is eccentric to the right header tank (one of the header tanks in the present embodiment) 130 side of the header tanks 120 and 130 in the direction perpendicular to the longitudinal direction of the tube 111 ( It is fixed (eccentrically about 10 mm).
[0029]
A flat projection 135 is formed on the side wall of the right header tank 130 opposite to the tube, and a flat projection 151b is formed on the opposite side wall of the receiver 150 on the right header tank side. Is formed.
[0030]
The plate 160 is formed by pressing from a plate material (thickness: about 1 mm) on both surfaces of which a brazing material is clad, and as shown in FIG. 3, a main body 161 formed in a crank shape and the main body 161 are formed. 161 comprises a plurality (eight in this example) of claw portions 162 formed on the outer periphery of 161. In the main body 161 of the plate 160, communication holes 163 and 164 forming a part of the communication passages 171 and 172 are formed.
[0031]
The main body 161 is sandwiched between the protrusion 135 of the right header tank 130 and the protrusion 151b of the liquid receiver 150 when the body 161 is assembled as described below and is brought into an assembled state as shown in FIG. (In other words, the right header tank 130 and the liquid receiver 150 are formed on both sides.) The first main body 161a contacts only the protrusion 135 of the right header tank 130 (in other words, the right header only on one side). (A tank 130 is formed).
[0032]
In addition, the second main body 161b has a protrusion 161c formed by pressing to the front side of the paper surface in FIG. Two each are provided.
[0033]
Of the claws 162 provided on the outer periphery of the main body 161, the four middle claws 162 in the vertical direction in FIG. 3 are bent toward the liquid receiver 150, and the four claws on the upper and lower sides The portion 162 is bent to the right header tank 130 side. Further, the claw portion 162 includes a first claw portion 162a formed on the first main body portion 161a and a second claw portion 162b formed on the second main body portion 161b (two claw portions at the right end in FIG. 3). The length of the second claw portion 162b is longer than the length of the first claw portion 162a. Incidentally, in this example, the length of the first claw 162a is about 2.0 mm, while the length of the second claw 162b is about 2.5 mm.
[0034]
Next, a method of assembling the liquid receiver 150 to the right header tank 130 will be described. Here, the description of the assembly of the left and right header tanks 120 and 130 to the core 110 and the assembly of the liquid receiver 150 will be omitted.
[0035]
First, the positioning is performed so that the circulation holes 163 and 164 of the plate 160 communicate with the inside of the liquid receiver 150, and the four claw portions 162 in the middle of the plate 160 are caulked to the protrusions 151 b of the liquid receiver 150, Temporarily fix.
[0036]
Next, the assembled body of the liquid receiver 150 and the plate 160 is positioned so that the circulation holes 163 and 164 of the plate 160 communicate with the inside of the right header tank 130, and the four claws on the upper and lower sides of the plate 160 are positioned. The part 162 is swaged to the protrusion 135 of the right header tank 130.
[0037]
By this caulking, the liquid receiver 150 is temporarily fixed to the right header tank 130. A gap 180 (see FIG. 1) serving as a heat-insulating structure is formed in most of the portion between the right header tank 130 and the liquid receiver 150.
[0038]
As described above, the assembled body of the integrated condenser 100 with the receiver is formed, put into a brazing furnace, and integrally brazed and joined. Here, the right header tank 130 and the plate 160, and the plate 160 and the receiver 150 are brazed to each other by the brazing material clad on both surfaces of the plate 160.
[0039]
According to the above-described configuration and assembling method, of the main body 161 of the plate member 160, the second main body 161b has improved rigidity due to the formed protrusion 161c, and the protrusion 135 of the right header tank 130. When the assembled body of the liquid receiver 150 and the plate 160 is crimped and temporarily fixed, no holding tool for holding down the second main body 161b is required. Therefore, even in the case of manufacturing a condenser in which the fixing position of the liquid receiver 150 is different (for example, the condenser 100 of the present embodiment and a condenser symmetrical to the condenser 100), the manufacturing process can be simplified.
[0040]
In addition, by improving the rigidity of the plate 160, the liquid receiver 150 can be reliably held in the temporarily fixed state, and the liquid holding device holding jig at the time of brazing, which is required in the conventional structure, can be eliminated. It is.
[0041]
Further, the protrusion 161c of the second main body 161b can be easily formed when the plate member 160 is pressed.
[0042]
Further, since the second claw 162b formed on the second main body 161b is longer than the first claw 162a, the second claw 162b can be caulked with a small caulking stress. Therefore, only the second claw portion 162b is easily deformed in the caulking step, and the temporary fixing to the right header tank 130 can be reliably performed.
[0043]
Further, since the brazing material clad on the plate 160 enables brazing of the right header tank 130 and the liquid receiver 150, there is no need to provide a brazing material application step, and the manufacturing process can be further simplified. .
[0044]
Since the plate 160 is interposed between the right header tank 130 and the liquid receiver 150, a gap 180 corresponding to the thickness of the plate 160 is formed in most of the portion between the right header tank 130 and the liquid receiver 150. Therefore, it is possible to promote the heat radiation in the liquid receiver 150 or suppress the heat transfer from the header tank 130 to suppress the refrigerant vaporization in the liquid receiver 150.
[0045]
(Other embodiments)
In the above-described embodiment, the protruding portion 161c is provided on the portion (the second main body 161b) of the main body 161 of the plate 160 where the right header tank 130 is formed only on one side during assembly. In the main body 161 of the 160, a protrusion may be provided at a portion where the liquid receiver 150 is formed only on one side during assembly. In the case where the plate 160 is caulked to the header tank 130 and then caulked to the liquid receiver 150, contrary to the above-described embodiment, the above configuration is more preferable.
[0046]
Further, in the above-described embodiment, the condenser has a configuration in which the refrigerant flows from the left side to the right side in the drawing through the upper group of tubes 111 (that is, the condensing portion) of the separators 122 and 132, but the flow of the refrigerant is not limited to this. Not something. For example, a condenser in which a separator is additionally installed in the header tank and the refrigerant flows in a U-shape, or a condenser in which the refrigerant flows in an S-shape or W-shape may be used.
[Brief description of the drawings]
FIG. 1 is an overall schematic configuration diagram of a condenser integrated with a liquid receiver 100 according to an embodiment of the present invention.
FIG. 2 is a plan view showing an assembled state of a liquid receiver 150 to a right header tank 130 in one embodiment.
FIG. 3 is a front view of a plate 160 according to one embodiment.
FIG. 4 is a plan view showing a state in which a liquid receiver is assembled to a header tank in a conventional liquid receiver integrated condenser.
FIG. 5 is a front view of a plate member in a conventional condenser integrated with a liquid receiver.
[Explanation of symbols]
100 Condenser integrated with receiver 111 Tube 120 Left header tank (header tank)
130 Right header tank (one header tank)
135 Projecting portion 150 Liquid receiver 151 Liquid receiving tank 151b Projecting portion 160 Plate (plate member)
161 Main body 161a First main body 161b Second main body 161c Projecting portion 162 Claw 162a First claw 162b Second claw

Claims (4)

A pair of header tanks (120, 130) disposed at both ends in the longitudinal direction of the plurality of tubes (111) through which the refrigerant flows, and communicating with the inside of the tubes (111);
Of the pair of header tanks (120, 130), they are fixed to one header tank (130), and are condensed when flowing through the tube (111) and flow out of the one header tank (130). A liquid receiver (150) that stores the liquid-phase refrigerant by separating the refrigerant into two gas-liquid layers;
A plate member provided between the one header tank (130) and the liquid receiver (150), the plate member including a main body (161) and a claw (162) formed on the outer periphery of the main body (161). (160)
The claw portion (162) is caulked to the one header tank (130) and the liquid receiver (150), and the liquid receiver (150) is connected to the one header tank (130) by the tube (111). Eccentrically fixed in a direction perpendicular to the longitudinal direction of
The one receiver tank (130) and the plate member (160), and the plate member (160) and the liquid receiver (150) are brazed to each other, so that the liquid receiver (150) is connected to the one side. In a condenser integrated with a receiver fixed to the header tank (130) of
The main body (161) includes a first main body (161a) having the one header tank (130) and the liquid receiver (150) formed on both sides, and the one header tank (130) on only one side. Alternatively, it comprises a second main body (161b) on which the liquid receiver (150) is formed,
A condenser integrated with a liquid receiver, wherein a projection (161c) is formed on the second main body (161b). The condenser integrated with a receiver according to claim 1, wherein the protrusion (161c) has substantially the same thickness as the main body (161). The claw portion (162) includes a first claw portion (162a) formed on the first main body portion (161a) and a second claw portion (162b) formed on the second main body portion (161b). Become
3. The liquid receiver according to claim 1, wherein the second claw portion (162 b) is formed to have a length longer than a length of the first claw portion (162 a). 4. Body condenser. The condenser integrated with a receiver according to any one of claims 1 to 3, wherein a brazing material is clad on a surface of the plate member (160).

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