JPH11304301A - Liquid receiver, and liquid receiver integrated condenser - Google Patents

Abstract

PROBLEM TO BE SOLVED: To raise the space efficiency of a liquid receiver and a liquid receiver integrated condenser, by making the two space parts communicate with each other though they are split from each other, and accommodating a filter and a desiccant in one space part, and forming the other space part, in the liquid receiver. SOLUTION: A liquid receiver 6 is composed of two separate tubular members 9 and 10, and those tubular members 9 and 10 are provided with space parts 7 and 8, respectively, within. Then, a filter 11 and a desiccant 12 are accommodated in the space part 7 of one tubular member 9, and a liquid tank part is made in the space part 8 of the other tubular member 10. Furthermore, they are made to communicate with each other at one end each of those tubular members 9 and 10 by a connector, and the other end is provided with a connector 14, and the interior of the connector 14 is demarcated into two rooms by a partition 15, and its one room communicates with the space part 7, and also the other room communicates with the spacer part 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid receiver for use in, for example, a refrigeration cycle of a vehicle air conditioner, and a condenser with a liquid receiver incorporated therein.

[0002]

2. Description of the Related Art Conventionally, each device (for example, a compressor, a condenser, a liquid receiver, an evaporator, etc.) constituting a refrigeration cycle in a vehicle air conditioner has been mounted as a single component. However, in recent years, various devices have been mounted in the engine room of a vehicle or the like from the viewpoint of improving convenience for a driver or the like, and space saving has been achieved by functionally disposing each device constituting a refrigeration cycle. Achievement is desired.

For this reason, for example, Japanese Patent Application Laid-Open No. 7-26998
No. 6, Japanese Patent Application Laid-Open No. 7-243720, and various proposals for space saving have been made.

[0004]

However, in the proposal of JP-A-7-269986, since the header of the condenser and the liquid receiver are integrally formed as separate parts,
For example, even when maintenance is required only for the receiver, the entire condenser must be removed from the vehicle, which causes inconvenience in maintenance. Further, in this proposal, since the receiver is mounted in the direction along the header of the condenser, the connection positions of the refrigerant inlet and outlet are limited, and the degree of freedom in designing the receiver is reduced. There is a risk.

Also, in the proposal of Japanese Patent Application Laid-Open No. 7-243720, a filter and a desiccant are accommodated in the outlet pipe of the refrigerant from the condenser. In addition, since the outlet pipe must be removed, maintenance efficiency may be significantly reduced. In addition, if the outlet pipe is filled with the desiccant, the circuit pressure loss in the refrigeration cycle including the condenser may increase.

SUMMARY OF THE INVENTION An object of the present invention is to improve the space efficiency of a liquid receiver and a condenser incorporated in a liquid receiver in an engine room of a vehicle and the like, as well as to improve the maintenance efficiency and the design / design.
An object of the present invention is to provide a liquid receiver capable of improving a degree of freedom in arrangement and a condenser incorporated in the liquid receiver.

[0007]

In order to solve the above-mentioned problems, a liquid receiver according to the present invention is provided with at least two spaces which are communicated with each other and are divided from each other, and a filter and a desiccant are provided in at least one space. And one other space portion is formed in the liquid tank portion.

[0008] The two space portions can be formed inside members formed separately from each other. Further, the two space portions may be formed inside one member. Further, the two space portions can be formed by partitioning the inside of the liquid receiver with a partition plate.

The method of connecting the two space portions to each other is not particularly limited. For example, a method of connecting the two space portions via a communication member such as a connector and / or a pipe can be adopted. When the two space portions are formed by partitioning the inside of the liquid receiver with a partition plate, a communication hole may be provided in the partition plate. In addition, the above 2
When the two space portions extend in parallel, it is also possible to form an inversion flow path for reversing the flow direction of the refrigerant at the ends of the two space portions or in the vicinity of the ends to communicate with each other.

[0010] A refrigerant inlet or a refrigerant outlet is connected to one of the two spaces according to the present invention, and the two spaces communicate with each other.

A sight glass can be provided at the refrigerant inlet and / or the refrigerant outlet so that the flow state of the refrigerant (for example, the presence or absence of air bubbles) can be visually observed from the outside.

[0012] In order to solve the above-mentioned problems, a condenser incorporated in a liquid receiver according to the present invention is characterized in that the liquid receiver according to any one of claims 1 to 10 is incorporated in the condenser. What you do.

[0013] The liquid receiver can be arranged in parallel with the condenser in the width direction of the condenser. Further, the liquid receiver may be disposed at a widthwise end of the condenser in a direction along a header of the condenser.

[0014] In the case where the above-mentioned two space portions incorporate the liquid receiver formed inside a member formed separately from each other into the condenser, one of the members formed separately is connected to the condenser. It is also possible to dispose the other member along the width of the condenser along the header of the condenser at the widthwise end of the condenser.

[0015] The member for storing the filter and the desiccant among the above-mentioned separate members is disposed at one of the upper, lower, left and right positions of the condenser from the viewpoint of improving the maintenance efficiency such as filter replacement. It is desirable to be done.

The condenser is a multi-flow type heat exchanger having a pair of headers, a plurality of flat tubes communicating the pair of headers with each other, and fins provided between the plurality of flat tubes. It is desirable. However, the heat exchanger is not limited to this, and may be another type of heat exchanger.

[0017] In the above-mentioned liquid receiver, at least two spaces are divided, and one space contains a filter and a desiccant, and the other space is formed in a liquid tank. I have. Further, the two space portions can be formed inside separate members, inside one member, or the like. Therefore, a mode in which these liquid receivers are arranged parallel to the condenser in the width direction of the condenser, or in a direction along the header of the condenser at the width direction end of the condenser, and One member constituting the receiver is arranged in parallel with the condenser in the width direction of the condenser, and the other member is arranged at the widthwise end of the condenser in a direction along the header of the condenser. It is possible to adopt an arrangement. In other words, from such various aspects, it is possible to take an optimal aspect in consideration of the installation space in the engine room, the subsequent maintenance efficiency, and the like, so that the engine of the liquid receiver and the liquid condenser built-in condenser can be adopted. Space efficiency in a room and the like and subsequent maintenance efficiency can be greatly improved.

Further, in the above-described liquid receiver, the liquid tank portion is formed in an independent space, so that the liquid tank portion and the filter and the like are arranged in the same space as in the conventional liquid receiver. The diameter of the liquid tank section (liquid storage section) can be reduced as compared with the case where the liquid tank is formed in a liquid tank. For this reason, the surplus refrigerant required from the viewpoint of preventing air from being sucked in when the liquid refrigerant is discharged from the liquid reservoir can be reduced, which can contribute to the refrigerant saving of the entire refrigeration circuit.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a receiver according to the present invention and a condenser incorporated in the receiver will be described below with reference to the drawings. 1 and 2 show a liquid receiver according to a first embodiment of the present invention and a condenser incorporated in the liquid receiver. 1 and 2, reference numeral 1 denotes a condenser. In this embodiment and the following embodiments, the condenser 1
Comprises a pair of headers 2 and 3, a plurality of tubes 4 communicating the pair of headers 2 and 3 with each other,
It consists of a multi-flow type heat exchanger having fins 5 provided between them. A liquid receiver 6 is incorporated in the condenser 1. In the present embodiment, the liquid receiver 6 is disposed parallel to the condenser 1 in the width direction of the condenser 1 (the left-right direction in FIG. 1).

The liquid receiver 6 is composed of two separate tubular members 9 and 10, respectively. The tubular member 9,
The space 10 is provided with spaces 7 and 8, respectively. A filter 11 and a desiccant 12 are accommodated inside one tubular member 9, and the inside of the other tubular member 10 is formed in a liquid tank portion.

The tubular members 9 and 10 extend in parallel, and the two space portions 9 and 10 are connected at one end via a connector 13.

At the other end of the tubular members 9 and 10, a connector 1
4 are provided. The inside of the connector 14 is partitioned into two chambers by a partition 15. One chamber is in communication with the space 7, and the other chamber is in communication with the space 8.

In the condenser incorporating the liquid receiver 6 as in this embodiment, the inlet pipe connected to one chamber 17 of the header 3 divided into two chambers by the partition plate 16. 1 flows through the inside of the condenser 1 as shown by an arrow in FIG.
Flows into the space 8 from The refrigerant flowing through the space 8 is
The flow direction is reversed in the connector 13 and the space 7
(Fig. 2). Then, the refrigerant flows out of the liquid receiver 6 from the outlet pipe 20 as a refrigerant outlet communicating with the space 7.

Further, in the present embodiment, the tubular member 9 containing the filter 11 and the desiccant 12 therein is disposed above the condenser 1 so as to be easily removed when the filter 11 and the desiccant are replaced. Has been established. In the present embodiment, the cross-sectional shapes of the tubular members 9 and 10 are circular, but may be elliptical, triangular, square, or polygonal.

FIGS. 3 to 5 show a receiver according to a second embodiment of the present invention and a condenser incorporated in the receiver.
Also in this embodiment, the condenser is formed of a multi-flow type heat exchanger as in the first embodiment. In addition,
Also in each of the embodiments after this embodiment, the condenser is a multi-flow type heat exchanger, and the same members are denoted by the same reference numerals and description thereof will be omitted.

In the present embodiment, the liquid receiver 21 is disposed parallel to the condenser 1 in the width direction of the condenser 1 (the left-right direction in FIG. 3). Two space portions 22 and 23 are provided inside the liquid receiver 21. Two spaces 22,
Reference numeral 23 is formed by a cylindrical elongated hole provided inside the integral liquid receiver main body 24. One space 22 contains a filter 25 and a desiccant 26, and the other space 23 is formed in a liquid tank.

The two space portions 22 and 23 extend in parallel, and both space portions 22 and 23 have a connector 27 at one end.
It is communicated through.

The other end of each of the spaces 22 and 23 has a connector 2
8 are provided. The inside of the connector 28 is divided into two chambers by a partition portion 29. One chamber is in communication with the space 22, and the other chamber is in communication with the space 23.

In the condenser incorporated in the receiver in which the receiver 21 is incorporated as in the present embodiment, the refrigerant flowing into one chamber 17 of the header 3 through the inlet pipe 19 is as shown in FIG.
Flows through the inside of the condenser 1 as shown by the arrow, and flows into the space 22 from the other chamber 18 of the header 3. The flow direction of the refrigerant flowing through the space 22 is reversed in the connector 27 and flows into the space 23 (FIG. 4). Then, the liquid receiver 21 is connected via the outlet pipe 20 communicating with the space 23.
It is designed to leak to the outside.

FIGS. 6 to 8 show a receiver according to a third embodiment of the present invention and a condenser incorporated in the receiver.
Also in this embodiment, the condenser is a multi-flow type heat exchanger as in the first embodiment, and the liquid receiver 30 condenses in the width direction of the condenser 1 (the left-right direction in FIG. 6). It is arranged parallel to the vessel 1. The inside of the receiver 30 is
Two spaces 32 and 33 are defined by the partition plate 31. More specifically, a cylindrical long hole 39 having a substantially eight-shaped cross section is provided in one member 38, the partition plate 31 is inserted into the long hole 39, and divided into two spaces 32 and 33. (FIG. 8). The partition plate 31 is provided with a communication hole 34 that communicates the two space portions 32 and 33.

One of the two spaces 32, 33 contains a filter 35 and a desiccant 36 in one space 32, and the other space 33 is formed in a liquid tank. A connector 37 is provided at one end of each of the two spaces 32 and 33. The inside of the connector 37 is divided into two chambers by a partition part 42.

At the other ends of the spaces 32 and 33, a connector 40 is provided. Inside the connector 40 is a partition 41
Is divided into two rooms. One chamber is in communication with the space 32, and the other chamber is in communication with the space 33. In this embodiment, the partition plate 31 may be extended to the inside of the connectors 37 and 40, and the inside of the connectors 37 and 40 may be divided into two chambers.

In the condenser incorporated in the receiver in which the receiver 30 is incorporated as in the present embodiment, the refrigerant flowing into one chamber 17 of the header 3 through the inlet pipe 19 is as shown in FIG.
Flows through the inside of the condenser 1 as shown by the arrow, and flows into the space 32 from the other chamber 18 of the header 3. Space 32
The refrigerant that has circulated inside passes through the communication hole 34 and passes through the space 33.
(FIG. 7). Then, the liquid flows out of the liquid receiver 30 through the outlet pipe 20 communicating with the space 33. The communication hole 34 may be formed as a set of a plurality of small holes.

FIG. 9 shows a receiver and a condenser incorporated in the receiver according to a fourth embodiment of the present invention. In this embodiment as well, the condenser comprises a multi-flow type heat exchanger as in the above embodiments. In this embodiment, the liquid receiver 50 is provided at the widthwise end of the condenser 1.
Are arranged in a direction along the header 3. Liquid receiver 50
Are supported by the header 3 via a bracket 57.

The interior of the liquid receiver 50 is partitioned by a partition plate 51, and two space portions 52 and 53 are formed. The partition plate 51 is provided with a communication hole 54 that communicates the two space portions 52 and 53. A filter 55 is provided in the upper space 52.
And a desiccant 56 are accommodated in the lower space 53.
Is formed in the liquid tank portion. The space 5
The inside of 2 is communicated with the chamber 18 of the header 3 via a pipe 58.

In the condenser with the receiver 50 incorporated therein as in this embodiment, the refrigerant flowing into one chamber 17 of the header 3 through the inlet pipe 19 is as shown in FIG.
Flows through the inside of the condenser 1 as shown by the arrow, flows into the space 52 from the other chamber 18 of the header 3, and flows into the space 53 from the communication hole 54. Then, the air flows out of the space 53 through the outlet pipe 20 to the outside.

FIG. 10 shows a receiver and a condenser incorporated in the receiver according to a fifth embodiment of the present invention. In the present embodiment, the two space portions 62 and 63 formed inside the liquid receiver 60 are formed inside the tubular member 64 and the tank member 65 that are separately formed from each other. One of the members 64 is disposed parallel to the condenser 1 in the width direction of the condenser 1, and the other member 65 is disposed at an end in the width direction of the condenser 1 in a direction along the header 3 of the condenser 1. The receiver 60 is disposed and incorporated in the condenser 1. In the present embodiment, the member 64 is disposed above the condenser 1, and the member 65 is disposed at a position on the left side of the condenser 1.

A filter 66 and a desiccant 67 are accommodated in a space 62 formed inside the member 64. The space 63 formed in the member 65 is formed as a liquid tank.

The two spaces 62 and 63 communicate with each other via a pipe 68. The pipe 68 is inserted into the inside of the space 63, and the liquid refrigerant stored in the lower part of the space 63 passes through the pipe 68 and is sent into the space 62.

In the condenser incorporated with the receiver 60 as in this embodiment, the refrigerant flowing into one chamber 17 of the header 3 through the inlet pipe 19 is the same as that shown in FIG.
As shown by the arrow 0, the gas flows through the inside of the condenser 1 and the header 3
From the other chamber 18 through the pipe 69 into the space 63 formed inside the member 65, then through the pipe 68 into the space 62, and from the outlet pipe 20 communicating with the space 62 It leaks out.

FIG. 11 shows a receiver and a condenser incorporated in the receiver according to a sixth embodiment of the present invention. In the present embodiment, the condenser 70 includes a pair of headers 71, 72.
And a multi-flow heat exchanger having a plurality of tubes 73 communicating the pair of headers 71 and 72 with each other and fins 74 provided between the tubes 73. Further, two space portions 7 formed inside the liquid receiver 75 are provided.
6, 77 are tubular members 78 each configured separately,
79 are formed inside. Then, one member 79
Is disposed in the width direction of the condenser 70 in parallel with the condenser 70, and the other member 78 is provided at the width direction end of the condenser 70,
The liquid receiver 75 is provided in a direction along the header 72 of the condenser 70, and is incorporated in the condenser 70. Header 71, 7
Partitions 88 and 89 are provided in 2.

A filter 80 and a desiccant 81 are accommodated in a space 77 formed in the member 79. The space 76 formed in the member 78 is formed as a liquid tank.

The two spaces 76 and 77 are provided with connectors 82.
Are communicated through. Further, the connector 82 is provided with a sight glass 83 from which the flow state of the refrigerant can be visually observed from the outside.

The space 76 communicates with a lower portion of the header 72 of the condenser 70 via a connector 84.

In the condenser incorporating the liquid receiver 75 as in this embodiment, the refrigerant flowing from the inlet pipe 85 into the header 71 of the condenser 70 is indicated by an arrow in FIG. Flow through the condenser 70 as shown in FIG.
From the lower part into the space 76. The refrigerant that has flowed into the space 76 further flows out into the space 77, and the space 7
7 is sent to the outside from an outlet pipe 86 communicating with the pipe 7.

In the liquid receiver as in each of the above embodiments, the inside of the liquid receiver is divided into at least two spaces.
One space contains a filter and a desiccant, and the other space is formed in a liquid tank. Also, the two space portions can be formed inside separate members (FIGS. 1, 10, and 11) or inside one member (FIGS. 3, 6, and 9). ). Therefore, the receiver is disposed in the width direction of the condenser in parallel with the condenser (FIGS. 1, 3, and 6), or the receiver is provided at the widthwise end of the condenser. (Fig. 9), or one of the members constituting the liquid receiver is arranged in the width direction of the condenser parallel to the condenser, and the other is condensed. (FIGS. 10 and 11) A mode in which the widthwise end of the vessel is arranged along the header of the condenser
Can be adopted. That is, from each of the above aspects, the optimal aspect can be selected while taking into account the installation space in the engine room, the maintenance efficiency after installing the condenser, and the like, so that the space efficiency and the maintenance efficiency can be improved. . Further, the degree of freedom in design and arrangement of the liquid receiver and the condenser incorporated in the liquid receiver can be improved.

In the case where the two spaces formed in the liquid receiver are formed inside separate members (FIG. 1, FIG. 1).
In FIGS. 10 and 11), only the filter and the desiccant-containing member can be disposed at a position where the filter and the desiccant can be easily removed in accordance with the space and layout in the engine room. Only the member can be easily removed, so that the maintenance efficiency can be further improved.

[0048]

As described above, in the liquid receiver and the condenser incorporated with the liquid receiver according to the present invention, the space efficiency of the liquid receiver and the condenser incorporated with the liquid receiver in the engine room of the vehicle or the like can be improved. The maintenance efficiency can be improved, and the degree of freedom in design and arrangement can be improved.

[Brief description of the drawings]

FIG. 1 is a front view of a liquid receiver according to a first embodiment of the present invention and a condenser incorporated in the liquid receiver.

FIG. 2 is a partially enlarged sectional view of the liquid receiver of FIG.

FIG. 3 is a front view of a receiver according to a second embodiment of the present invention and a condenser incorporated in the receiver.

FIG. 4 is a partially enlarged sectional view of the liquid receiver of FIG. 3;

5 is a cross-sectional view of the liquid receiver of FIG. 4 taken along line VV.

FIG. 6 is a front view of a liquid receiver according to a third embodiment of the present invention and a condenser incorporated in the liquid receiver.

FIG. 7 is a partially enlarged sectional view of the liquid receiver of FIG. 6;

FIG. 8 is an exploded perspective view of the liquid receiver of FIG.

FIG. 9 is a front view of a receiver according to a fourth embodiment of the present invention and a condenser incorporated in the receiver.

FIG. 10 is a front view of a receiver according to a fifth embodiment of the present invention and a condenser incorporated in the receiver.

FIG. 11 is a front view of a liquid receiver according to a sixth embodiment of the present invention and a condenser incorporated in the liquid receiver.

[Description of Signs] 1, 70 Condenser 2, 3, 71, 72 Header 4, 73 Tube 6, 21, 30, 50, 60, 75 Receiver 7, 8, 22, 23, 32, 33, 52, 53, 62,
63, 76, 77 Space portions 9, 10, 24, 38, 64, 65, 78, 79 Members 11, 25, 35, 55, 66, 80 Filters 12, 26, 36, 56, 67, 81 Desiccants 13, 14, 27, 28, 37, 40, 82 Connectors 15, 16, 29, 41, 42, 88, 89 Partitions 17, 18 Chambers 19, 85 Inlet pipes 20, 86 Outlet pipes 31, 51 Partition plates 34 54 Communication holes 39 long hole 57 bracket 58, 68, 69 pipe 83 sight glass

Claims (15)

[Claims] 1. At least two spaces which are communicated with each other and are divided from each other, one of which contains a filter and a desiccant, and the other of which is formed in a liquid tank portion. A receiver. 2. The liquid receiver according to claim 1, wherein said two space portions are respectively formed inside members formed separately from each other. 3. The liquid receiver according to claim 1, wherein said two space portions are formed inside one member. 4. The liquid storage device according to claim 1, wherein the two space portions are formed by partitioning the inside of the liquid receiver with a partition plate.
Receiver. 5. The connector according to claim 5, wherein the two spaces are a connector and / or a connector.
The liquid receiver according to any one of claims 1 to 4, wherein the liquid receiver is communicated via a communication member such as a pipe. 6. The liquid receiver according to claim 4, wherein said partition plate is provided with a communication hole communicating with said two space portions. 7. The two space portions extend in parallel,
The liquid receiver according to any one of claims 1 to 6, wherein the two space portions are communicated with each other at an end by an inversion flow path that inverts a flow direction of the refrigerant. 8. The liquid receiver according to claim 1, wherein a refrigerant inlet or a refrigerant outlet is connected to one of the two spaces. 9. The liquid receiver according to claim 8, wherein a side glass is provided at the refrigerant inlet portion and / or the refrigerant outlet portion so that the flow state of the refrigerant can be visually observed from the outside. 10. A condenser built in a receiver, wherein the condenser according to claim 1 is incorporated in the condenser. 11. The condenser built in a receiver according to claim 10, wherein the liquid receiver is disposed in a width direction of the condenser and parallel to the condenser. 12. The condenser built in the receiver according to claim 10, wherein the liquid receiver is disposed at a widthwise end of the condenser in a direction along a header of the condenser. 13. The liquid receiver according to claim 2, wherein one of the members formed separately is disposed parallel to the condenser in a width direction of the condenser and the other. 11. The condenser incorporated in the receiver according to claim 10, wherein one of the members is disposed at a widthwise end of the condenser in a direction along a header of the condenser. 14. A member for accommodating a filter and a desiccant among the members formed separately is disposed at one of upper, lower, left and right positions of the condenser.
Receptor built-in condenser. 15. The condenser comprises a multi-flow heat exchanger having a pair of headers, a plurality of tubes communicating the pair of headers with each other, and fins provided between the plurality of tubes. The condenser incorporated in the receiver according to any one of claims 11 to 14.