JP2002172929A - Condenser for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounting structure of a replaceable simple and stable receiver tank of a parallel flow-type condenser wherein the receiver tank is connected to a header tank through piping. SOLUTION: In this parallel flow-type condenser, the receiver tank is mounted independently from the header tank, the header tank and the receiver tank are connected by introduction piping, the introduction piping is mounted on the receiver tank by using an aluminum thin bracket, and the receiver tank is supported by the bracket.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a connection structure of a receiver tank for performing gas-liquid separation in a parallel flow type condenser in which a plurality of tubes are stacked together with fins.

[0002]

2. Description of the Related Art In general, a plurality of flat tubes are stacked, both ends of each flat tube are connected to a header tank, the inside of the header tank is partitioned by a partition member, and a refrigerant meanders through the tube group a plurality of times. There is known a stacked condenser in which a receiver for separating gas and liquid is attached to a side of the condenser.

For example, in a laminated condenser 1 disclosed in Japanese Patent Application Laid-Open No. 8-219589, a plurality of flat tubes 2 are laminated via corrugated fins 3 as shown in FIGS. Both ends are inserted into insertion holes provided in the header tank 4, and caps 5 are put on upper and lower openings of each header tank 4. A partition plate 6 is provided at a predetermined position of each header tank 4. The header tank 4 is provided with an inlet section 7 and an outlet section 8, and the refrigerant is meandered between these inlets and outlets 7 and 8 several times. Reference numeral 9 denotes side plates arranged above and below the flat tube 2.

[0004] A receiver 12 for separating gas and liquid is disposed on the side of the header tank 4. In particular, in the publication, the receiver 12 is connected to the header tank 4 via the connector block 10 without passing through a pipe.

In the publication, the connector block 1
Numeral 0 is made of aluminum and brazed to the outlet 8 of the header tank 4. An L-shaped passage 11 is formed inside the connector block 10, and the passage 11 is connected to the outlet 8 and the receiver 12. A bolt insertion hole 13 is formed in the connector block 10 so as to penetrate the block in the vertical direction. The mounting surface 14 of the connector block 10 has a concave shape conforming to the curved shape of the header tank 4. Present.

In order to achieve compactness, a receiver tank is integrally formed by utilizing a wall surface forming a header tank, for example, as disclosed in JP-A-4-10397.
No. 3 is known. This publication has a parallel flow type condenser structure similar to that disclosed in Japanese Patent Application Laid-Open No. 8-219589. However, as shown in FIG. 15, a cylindrical case body 22A constituting the receiver tank 22 is fixed to the outer surface of the header tank 4A by brazing or the like. The pipe 20 is connected to the bottom of the case body 22A.

[0007]

However, in the method disclosed in Japanese Patent Application Laid-Open No. Hei 8-219589, the manufacturing process of the connector block 10 having a passage therein takes time and the manufacturing cost of the connector block 10 is high.

[0008] In Japanese Patent Application Laid-Open No. 4-103973, the size can be reduced, but there is a problem that the replacement of the receiver tank 22 is difficult.

In order to solve such a problem, the present invention provides a simple and stable receiver tank which can be replaced in a parallel flow type condenser in which a receiver tank is connected to a header tank via a pipe. It is intended to provide a mounting structure.

[0010]

The invention according to claim 1 has a plurality of tubes and fins alternately arranged in parallel with each other, and a header tank connected to both ends of the plurality of tubes. In the parallel flow type condenser having a partition member in the header tank and a refrigerant flowing through a tube group formed by the partition member, one end of an introduction pipe is connected to an outlet of the header tank, The inlet of the receiver tank is connected to the other end of the pipe, a bead is provided at the other end of the inlet pipe,
A substantially L-shaped bracket made of an aluminum plate material for attaching the introduction pipe to the receiver tank is provided, one end of the bracket is connected to the header tank by brazing, and the introduction pipe can pass through the other end. A support portion for supporting the bead portion is provided around the opening portion, and the bead portion of the introduction pipe is sandwiched between the support portion and the introduction port of the receiver tank. It is a condenser.

In this configuration, since the receiver tank is connected to the header tank via the bracket, mounting and dismounting are easy, and low-cost and stable mounting is possible.

According to a second aspect of the present invention, there are provided a plurality of tubes and fins alternately arranged in parallel with each other, a header tank connected to both ends of the plurality of tubes, and a side of the header tank. An outlet of the condenser section having a receiver tank disposed therein, having a partition member in the header tank, and having one of a group of tubes formed by the partition member as a condenser section and the other as a supercooling section. The inlet pipe of the receiver tank is connected to the inlet pipe of the receiver tank, the outlet pipe of the receiver tank is connected to the inlet section of the supercooling section, and beads are connected to the inlet pipe and the outlet pipe connecting to the receiver tank. And a substantially L-shaped bracket made of an aluminum plate for attaching the introduction pipe and the discharge pipe to the receiver tank is provided. One end of the metal pipe is connected to the header tank by brazing, and the other end has an opening formed therein through which the introduction pipe and the discharge pipe can pass, and a support section for supporting the bead section around the opening. A vehicle condenser provided with the bead portion sandwiched between the support portion and the receiver tank.

In this configuration, since the receiver tank is connected to the header tank via the bracket, mounting and dismounting are easy, and low-cost and stable mounting is possible. In particular, both the inlet pipe and the outlet pipe are temporarily attached to the header tank, and the receiver tank is held down by a single aluminum bracket, and can be brazed together in this state, facilitating fixing work. .

According to a third aspect of the present invention, in the vehicle condenser according to the first or second aspect, an iron plate member is provided on a side opposite to the bead portion with the bracket interposed therebetween. Since the bracket is fixed to the receiver tank by bolting to the receiver tank, the mounting rigidity of the receiver tank is sufficiently maintained and the vibration resistance is excellent.

According to a fourth aspect of the present invention, in the vehicle condenser according to any one of the first to third aspects, the bracket is provided with reinforcing ribs.
The strength of the aluminum bracket can be increased, and the vibration resistance of the receiver tank can be improved.

According to a fifth aspect of the present invention, in the vehicle condenser according to any one of the first to fourth aspects, the receiver tank is supported by the header tank with the second bracket, so that the receiver tank has an elongated receiver tank structure. The support rigidity of the receiver tank can be improved.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 relate to the first embodiment, FIG. 1 shows an overall schematic view of a vehicle condenser, FIG. 2 shows a state where a receiver tank is mounted, and FIG. 3 shows a state where the receiver tank is mounted. Show. In the vehicle condenser 30, a plurality of flat tubes 31 are laminated via corrugated fins 32 for heat radiation. Side plates 33 above and below the laminated flat tube 31 and corrugated fins 32,
34 are provided. The open ends of the plurality of flat tubes 31 are inserted into insertion holes formed in the header tanks 35 and 36 on both sides. A partition plate 37 is provided at a predetermined position of each of the header tanks 35 and 36.

Further, an inlet connection portion 38 is provided below one header tank 35, and an outlet connection portion 39 is provided above the other header tank 36. The refrigerant flowing from the inlet connection 38 is meandered a plurality of times between the header tanks 35 and 36 and the flat tube 31 and flows therethrough.
Flow out of 9.

A receiver tank 40 is arranged on the side of the other header tank 36, and one end 42 a of an introduction pipe 42 is connected to an outlet connection portion 39 of the header tank 36,
The other end 42 b of the introduction pipe 42 is connected to the introduction port 41 of the receiver tank 40. The other end 4 of the introduction pipe 42
2b is provided with a bead 43.

The receiver tank 40 is connected to the header tank 36.
An L-shaped bracket 44 made of a thin plate made of an aluminum alloy is provided to fix the bracket 44 to the bracket. Bracket 44
One end piece 44a is brazed to the header tank 36, and the other end piece 44b is provided with an opening 45 for the introduction pipe 42 to penetrate. A support portion 46 for supporting the bead 43 is provided around the opening 45, and a bolt hole 47 is provided in front of the opening 45.
Is provided.

When the receiver tank 40 is mounted, the other end 42 b of the introduction pipe 42 is introduced into the introduction port 41 of the receiver tank 40. A bolt 48 is passed through the bolt hole 47 and screwed into the receiver tank 40 for fastening. At that time,
Since the O-ring 49 is externally inserted near the bead 43 of the introduction pipe 42, the introduction step 4 formed in the introduction port 41 is formed.
An O-ring 49 is sandwiched between the 1a and the bead 43 to seal.

The surface on which the bracket 44 is brazed to the header tank 36 has a substantially arc-shaped cross section along the shape of the header tank 36. The lower part of the receiver tank 40 is header header 3 by the second bracket 44A.
6 is supported. In the first embodiment, the receiver tank 40 is also supported by the second bracket 44A.
If only four can be supported, the second bracket 44A may be omitted. Also, the inlet 4 of the receiver tank 40
1 is provided on the upper part of the receiver tank 40,
The present invention is also applicable to a type in which the outlet connection portion of the header tank is disposed below the header tank, and the introduction pipe is connected to the bottom of the receiver tank. The same can be said for the other embodiments.

FIGS. 4 and 5 show a second embodiment. When the receiver tank 60 is fixed to the bracket 64, a reinforcing plate member 68 made of an iron plate is provided to increase the mounting rigidity. The reinforcing plate member 68 has a long groove 68a formed at the center and a bolt insertion hole 68b formed at an end. The other end 62b of the introduction pipe 62 is passed through the long groove 68a,
The bolt insertion hole 68 b is inserted into the bolt insertion hole 6 of the bracket 64.
7, the bolt 69 is passed through the bolt insertion hole 68b and the bolt insertion hole 67, and screwed into the receiver tank 60. Thereby, the receiver tank 6 is attached to the bracket 64.
0 is firmly fixed and the introduction pipe 62 is also attached to the receiver tank 60 with high sealing properties. One end 62 a of the introduction pipe 62 is brazed to the header tank 56.

FIG. 6 relates to the third embodiment, and shows the introduction piping 82
A reinforcing rib 88 is formed on a bracket 84 that supports and fixes a receiver tank (not shown).
In this embodiment, a part of the bracket 84 is deformed,
Two ribs 84 are formed. Thereby, the rigidity of the bracket 84 is increased. The shape and number of the ribs 84 are not limited to those in this embodiment, but may be other shapes and numbers.

FIGS. 7 to 9 show a fourth embodiment. Third
A flange-shaped reinforcing rib 98 is provided instead of the reinforcing rib of the embodiment. In the fourth embodiment, the reinforcing ribs 98 are formed by bending both sides of the bracket 94 at right angles. A reinforcing iron plate 99 similar to the reinforcing plate member 68 of the second embodiment is further mounted between the reinforcing ribs 98. In the fourth embodiment, the rigidity of the bracket 94 itself is increased by the reinforcing ribs 98 and the reinforcing iron plate 99 is provided.
The receiver tank 90 is attached to the bracket 94 using
2 to obtain a mounting structure having excellent vibration resistance.

FIGS. 10 and 11 relate to the fifth embodiment.
The case where the present invention is applied to a different type of condenser from the first embodiment will be described. In the condenser 100 for a vehicle, a plurality of flat tubes 110 are stacked via corrugated fins 120 for heat radiation. Side plates 130 and 140 are provided above and below the laminated flat tube 110 and wavy fin 120. Open ends of these flat tubes 110 and side plates 130 and 140 are inserted into insertion holes formed in header tanks 150 and 160 on both sides. Partition plates 170 and 171 are provided at predetermined positions of the header tanks 150 and 160, respectively. The upper flat tube group partitioned by the partition plate 171 is
00A, and the lower flat tube group is
0B.

Further, an inlet connection portion 180 is provided above one header tank 150, and an outlet connection portion 190 is provided below. The receiver tank 200 is arranged on the side of the other header tank 160, and the introduction pipe 2 for introducing the refrigerant coming out of the condensing section 100A into the receiver tank 200.
20 is connected to the header tank 160 above the partition plate 171 and the discharge pipe 22 from the receiver tank 200
1 is connected to the header tank 160 below the partition plate 171 and flows through the supercooling unit 100B.

The refrigerant flowing from the inlet connection part 180 is meandered a plurality of times between the header tanks 150 and 160 and the flat tube 110, flows out of the condensing part 100A, enters the receiver tank 200 through the inlet pipe 220, The gas is separated into gas and liquid, further flows from the discharge pipe 221 to the supercooling section 100B, and flows from the outlet connection section 190 to the outside.

In the fifth embodiment, beads 230 and 231 are provided at connection portions 220a and 221a of the introduction pipe 220 and the discharge pipe 221 with the receiver tank 200, respectively. In order to fix the receiver tank 200 to the header tank 160, an L-shaped bracket 240 formed from an aluminum alloy thin plate is provided. One end 240a of the bracket 240 is brazed to the header tank 160, and the other end 240b is provided with openings 250 and 251 for penetrating the introduction pipe 220 and the discharge pipe 221. Beads 230 around the openings 250, 251
231 is provided to support the opening 25.
A bolt hole 270 is provided between 0 and 251.

When the receiver tank 200 is mounted, the connection 220a of the introduction pipe 220 and the connection 221a of the discharge pipe 221 are connected to the inlet 210 of the receiver tank 200,
Introduced in 211. The bolt 280 is passed through the bolt hole 270 and screwed into the receiver tank 200 for fastening. At this time, the O-ring 29 close to the beads 230 and 231
0 is extrapolated, the beads 230, 2 are inserted into the introduction steps 210 a, 211 a formed in the introduction ports 210, 211.
31 and the respective O-rings 290 are held and sealed.

The surface on which the bracket 240 is brazed to the header tank 160 has a substantially arc-shaped cross section along the shape of the header tank 160. The upper part of the receiver tank 200 is supported by the header tank 160 by the second bracket 241. In this embodiment, the second
Although the receiver tank 200 is also supported by the bracket 241, the second bracket 241 may be omitted when the size of the receiver tank 200 is short and can be supported only by the bracket 240. In addition, receiver tank 2
Although the inlet 210 of 00 is provided at the lower part of the receiver tank 200, the inlet of the receiver tank is provided at the upper part of the receiver tank in the type in which the condensing part is located below and the supercooling part is located above. It can be applied to things.

FIG. 12 shows a sixth embodiment in which the mounting rigidity is increased by using a reinforcing iron plate 399 as in the second embodiment. Other parts are the same as in the fifth embodiment, and a detailed description will be omitted.

[0033]

According to the present invention, the header tank and the receiver tank are communicated with each other by the introduction pipe, and the receiver tank is supported by the aluminum thin plate bracket, so that the mounting and dismounting are easy and the cost is reduced. I can do it. Also,
When an iron plate member is provided on the opposite side of the bead portion across the bracket or / and when a reinforcing rib is provided on the bracket, the support is performed using a thin aluminum alloy bracket. It can support the receiver tank with high rigidity, and can have a mounting structure excellent in vibration resistance.

Further, when the receiver tank is supported by the header tank with the second bracket in addition to the bracket at the introduction pipe portion, the receiver tank can be supported by the header tank at two places, so that the receiver tank can be stably supported. . In particular, such a support structure is used when the receiver tank is elongated to reduce the width of the condenser.
It is convenient.

[Brief description of the drawings]

FIG. 1 is an overall schematic diagram showing a vehicle condenser of a first embodiment to which the present invention is applied.

FIG. 2 is a partially enlarged view showing an attached state of a receiver tank of FIG. 1;

FIG. 3 is a partially enlarged view showing a state where the receiver tank of FIG. 1 is attached.

FIG. 4 is an overall schematic view showing a vehicle condenser according to a second embodiment to which the present invention is applied.

FIG. 5 is a plan view of an iron plate according to a second embodiment.

FIG. 6 is a partial perspective view of a condenser according to a third embodiment of the present invention.

FIG. 7 is a partial plan view of a condenser according to a fourth embodiment of the present invention.

FIG. 8 is a front view of FIG. 7;

FIG. 9 is a side view of FIG. 7;

FIG. 10 is an overall schematic diagram showing a condenser according to a fifth embodiment of the present invention.

FIG. 11 is a plan view of the bracket of FIG. 10;

FIG. 12 is an overall schematic diagram showing a condenser according to a sixth embodiment of the present invention.

FIG. 13 is an overall schematic diagram showing a conventional condenser.

FIG. 14 is a partially enlarged view of FIG.

FIG. 15 is an overall schematic view showing another conventional condenser.

[Explanation of symbols]

 REFERENCE SIGNS LIST 30 Condenser for vehicle 31 Flat tube 32 Wavy fin 33 Side plate 34 Side plate 35 Header tank 36 Header tank 37 Partition plate 38 Inlet connection part 39 Outlet connection part 40 Receiver tank 41 Inlet 41 a Introductory part 42 Introductory pipe 42 a One end 42b other end 43 discharge pipe 44 bracket 44a one end piece 44b other end piece 45 opening 46 support part 47 bolt hole 48 bolt 49 O-ring 44A second bracket 56 header tank 60 receiver tank 62 introduction pipe 62a one end 62b other end 64 Bracket 67 Bolt insertion hole 68 Reinforcement plate member 68a Long hole 68b Bolt insertion hole 69 Bolt 82 Introducing pipe 84 Bracket 88 Reinforcement rib 90 Receiver tank 94 Bracket 98 Reinforcement rib 99 Supplement Iron plate 100 Condenser for vehicle 100A Condensing part 100B Supercooling part 110 Flat tube 120 Wavy fin 130 Side plate 140 Side plate 150 Header tank 160 Header tank 170 Partition plate 171 Partition plate 180 Inlet connection part 190 Outlet connection part 200 Receiver tank 210 Inlet 210a Introducing step 211 Introducing port 211a Introducing step 220 Introducing pipe 220a Connecting section 221 Discharging pipe 221a Connecting section 230 Bead 231 Bead 240 Bracket 240a One end piece 240b Other end piece 241 Second bracket 250 Opening 251 Opening 260 Support Part 270 Bolt hole 280 Bolt 290 O-ring 399 Iron plate for reinforcement

Claims (5)

[Claims] 1. A plurality of tubes and fins arranged alternately and parallel to each other, a header tank connected to both ends of the plurality of tubes, and a partition member in the header tank. In a parallel flow condenser in which a refrigerant flows through a tube group formed by a partition member, one end of an introduction pipe is connected to an outlet of the header tank, and an introduction port of a receiver tank is connected to the other end of the introduction pipe. Is connected, a bead portion is provided at the other end of the introduction pipe,
A substantially L-shaped bracket made of an aluminum plate material for attaching the introduction pipe to the receiver tank is provided, one end of the bracket is connected to the header tank by brazing, and the introduction pipe can pass through the other end. A support portion for supporting the bead portion is provided around the opening portion and the opening portion is provided, and the bead portion of the introduction pipe is sandwiched between the support portion and the introduction port of the receiver tank. Vehicle condenser. 2. A receiver having a plurality of tubes and fins arranged alternately and parallel to each other, a header tank connected to both ends of the plurality of tubes, and a receiver arranged on a side of the header tank. A tank having a partition member in the header tank, and one of the tube groups formed by the partition member as a condensing part and the other as a supercooling part, and the receiver tank at an outlet part of the condensing part. An introduction pipe to the supercooling unit is connected to a discharge pipe from the receiver tank, and a bead part is provided at a connection portion of the introduction pipe and the discharge pipe with the receiver tank, respectively. A substantially L-shaped bracket made of an aluminum plate material for attaching the introduction pipe and the discharge pipe to the receiver tank is provided, and one end of the bracket is attached to the head. An opening is formed at the other end, through which the introduction pipe and the discharge pipe can pass, and a support for supporting the bead is provided around the opening, and the support is A vehicle condenser comprising the bead portion sandwiched between the receiver tank and the receiver tank. 3. An iron plate member is provided on the opposite side of the bead portion with respect to the bracket, and the iron plate member is bolted to the receiver tank, and the bracket and the introduction pipe are fixed to the receiver tank. 3. The condenser for a vehicle according to claim 1, wherein: 4. The condenser according to claim 1, wherein a reinforcing rib is provided on the bracket. 5. The condenser according to claim 1, wherein the receiver tank is supported on the header tank by a second bracket.