JPH06123524A - Condenser with liquid receptor - Google Patents

Abstract

PURPOSE:To perform an integral arranging of a liquid receptor and a condenser to a vehicle body and the like and to improve an efficiency of work by a method wherein the liquid receptor is held by the condenser and both of them are integrally assembled to each other. CONSTITUTION:A liquid receptor 2 is positioned at a right aide and a slight upper part on the front surface side of a condenser and integrally held at the condenser with a bracket 13. A refrigerant outlet pipe 5 of a condenser 1 is extended from an outer surface at a lower end of a right header 3 upwardly, bent in the midway of it, extended near the front surface of a core on the front surface side of the condenser 1 and further extended upwardly over a vacant space positioned on the left side between the liquid receptor 2 and the condenser 1 from the left lower side of the liquid receptor 2. Then, the pipe is connected to a port 17 on the left side flange coupling surface 16 of a head 15 of the liquid receptor 2. Due to this connection, an extremity end of the refrigerant liquid outlet pipe 5 is provided with a flange connecting type block coupler member 37. With such an arrangement as above, it is possible to perform an integral installing of the liquid receptor together with the condenser to a vehicle body and the like.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a condenser with a receiver, which is mounted on a vehicle body and incorporated in a refrigerant circuit of a car cooler for use.

[0002]

2. Description of the Related Art In an air conditioner, a compressor and a condenser, and a compressor and an evaporator are respectively connected by a refrigerant gas pipe, and a condenser and an expansion valve, and an expansion valve and an evaporator are connected. Have a refrigerant circuit configuration in which they are connected by a refrigerant liquid pipe. Then, of the gas-mixed liquid refrigerant that has exited the condenser, the gas refrigerant is removed so that only the refrigerant is sent to the expansion valve,
A liquid receiver is interposed in the refrigerant liquid pipe that connects the condenser and the expansion valve.

When such an air conditioner is used as, for example, a car cooler, in the conventional car cooler, the condenser and the liquid receiver are mounted on the vehicle body by arranging them at predetermined positions on the vehicle body. The refrigerant gas pipe from the compressor is connected to the condenser, the refrigerant liquid pipe from the expansion valve is connected to the liquid receiver, and the condenser and the liquid receiver are connected by the refrigerant liquid pipe. It was done like that. Therefore, it takes a lot of time and labor to assemble and assemble the condenser and the receiver in the vehicle body, and the piping work to the condenser and the receiver in the vehicle body also requires a lot of work. It was accompanied by trouble and difficulty.

In particular, in the conventional structure, the connection portion of the liquid receiver for connecting the refrigerant liquid pipe from the expansion valve and the connection portion of the condenser for connecting the refrigerant gas pipe from the compressor are arranged in such a manner. Since the positions were far apart from each other,
The work position must be changed to connect the pipes, which makes the pipe connection work more troublesome and difficult.

In view of the above-mentioned conventional drawbacks, the present invention facilitates the work of assembling the condenser and the receiver on the vehicle body and the like and the piping work for the condenser and the receiver easily and efficiently. The goal is to be able to do well.

[0006]

In the above object, the present invention provides a liquid pipe to which a gas pipe connecting port for connecting a refrigerant gas pipe from a compressor and a refrigerant liquid pipe from a pressure reducing mechanism such as an expansion valve are connected. A pipe connection block provided with a connection port is provided, and a refrigerant gas inlet pipe of the condenser is connected to the pipe connection block in communication with the gas pipe connection port, while a refrigerant liquid outlet of the condenser is provided. The pipe is connected to the liquid receiver held by the condenser, and the refrigerant liquid pipe extended from the liquid receiver is connected to the pipe connection block in the liquid pipe connection port.
The gist is a condenser with a receiver characterized by being connected.

[0007]

In the above structure, since the liquid receiver is held by the condenser and both are integrated, the work of disposing them on the vehicle body or the like can be performed integrally.

Moreover, since the condenser and the liquid receiver are connected in advance by the refrigerant liquid pipe, the refrigerant gas pipe from the compressor is connected to the condenser at the site and the expansion is performed. It is only necessary to connect the refrigerant liquid pipe from the valve to the receiver.

In addition, there is provided a port-integrating type connection block provided with respective connection ports for connecting the refrigerant liquid pipe on the expansion valve side and the refrigerant gas pipe on the compressor side, and the connection block is provided with a condenser. Since it is assumed that the refrigerant gas inlet pipe from and the refrigerant liquid pipe from the receiver are connected, for each connection port of this connection block, the refrigerant liquid pipe on the expansion valve side and the compressor side The refrigerant gas pipe can be connected at the same connection work position.

[0010]

EXAMPLE Next, an example in which the present invention is applied to a condenser with a liquid receiver for a car cooler will be described.

In the condenser with a receiver shown in FIGS. 5 and 6, (1) is a condenser, (2) is a receiver.
(3) is a block for pipe connection, (4) is a refrigerant gas pipe,
(5) and (6) are refrigerant liquid pipes.

The condenser (1) is a so-called multi-flow type or parallel-flow type rectangular flat plate heat exchanger, and is oriented in the left-right direction and arranged in parallel in the up-down direction at predetermined intervals. A pair of left and right cylindrical hollow headers (8) (8) are connected in communication with both ends of the plurality of flat tubes (7), and the inside of the headers (8) (8) is partitioned at a predetermined height position. The refrigerant is divided by (9) and circulates in a meandering manner through the tubes (7) ... Group. The refrigerant gas inlet pipe (4) is connected to the upper side of the right header (8) in a communicating state, and the refrigerant liquid outlet pipe (5) also communicates with the lower end side surface of the right header (8). Connected to the state. In addition, (10) ... is a corrugated fin.

The liquid receiver (2) is shown in FIGS. 1, 5, and 6.
As shown in the figure, the condenser is positioned on the front side of the condenser on the right side and slightly upward, and is held integrally with the condenser by a bracket (13).

As shown in FIG. 3, the liquid receiver (2) has a bottomed cylindrical liquid receiver main body (14), a rectangular parallelepiped block shape elongated in the left-right direction, and a lower side. It has a head part (15) also as a lid that closes the upper end opening of the liquid container body (14).

As shown in FIG. 2, the condenser (1) is provided on the flat end surface (16) on the left side in the length direction of the head (15).
Is provided with a connection port (17) for a refrigerant liquid inlet for connecting the refrigerant liquid outlet pipe (5) of (1) and a flat end surface (1) on the right side.
8) is provided with a connection port (19) for the refrigerant liquid outlet that connects the refrigerant liquid pipe (6) from the pipe connection block (3). Then, screw holes (20) (21) for connection are provided adjacent to the connection ports (17) (19) on each of these end faces (16) (18), and the end faces (16) (18) are It is formed on the connection surface of the flange coupling type.

Further, as shown in FIGS. 2 and 3, the head (15) is provided with a refrigerant liquid inlet passage (23) and an outlet passage (24) thereof, each of which is a receiver body. A refrigerant liquid suction pipe (25) is opened in the (14) and communicated with the outlet passage (24), and the lower end thereof projects to the bottom of the liquid receiver body (14). Therefore, the connection ports (17) (19) are communicated with the inside of the liquid receiver body (14). A sight glass (26) is provided on the upper surface of the head (15).

Further, on the front surface of the head (15), a connection portion (27) for connecting a pressure switch, which is located on the left side and communicates with the inlet passage (23) in the head (15), is also located on the right side. And a connection part (28) for connecting the high pressure switch, which is communicated with the outlet passage (24), is provided, and the pressure switch (29) and the high pressure switch (30) are connected to each connection part (27) (28). It is designed to be profitable.

The pipe connection block (3) is arranged adjacent to the outside of the right header (8) of the condenser (1).

As shown in FIG. 4, the connecting block (3) has a vertically long flat surface (32) directed obliquely outward and rearward, and the flat surface (32) has a flat surface (32). , The upper connection port (33) to which the refrigerant gas pipe from the compressor is connected, and the lower connection port (3) to which the refrigerant liquid pipe from the expansion valve is connected.
4) and are provided adjacent to each other in the vertical direction. A mounting hole (35) is provided at a position between the ports (33, 34) on the flat surface (32), and the flat surface (32) is configured as a flange coupling type connection surface.

The refrigerant liquid outlet pipe (5) of the condenser (1) extends upward from the outer surface of the lower end portion of the right header (3), as shown in FIGS. 1 and 2. The condenser (1) is bent in the middle to extend inward of the front surface of the core of the condenser (1) in the vicinity of the front surface of the core, and is further condensed with the receiver (2) from the lower left side of the receiver (2). The empty space located to the left of the container (1) is extended upward and is connected to the port (17) of the left flange coupling surface (16) of the head (15) of the liquid receiver (2). It is supposed to be.

Because of this connection, a flange coupling type block-shaped joint member (3) is provided at the tip of the refrigerant liquid outlet pipe (5).
7) is provided. That is, the tip of the refrigerant liquid outlet pipe (5) is bent toward the front of the condenser (1) and connected to the flat rear surface of the joint member (37). The joint member (37) has a flat connection surface (38) on the right side, and the connection surface (38) has a left connection surface (16) of the head (15) of the liquid receiver (2). The insertion pipe portion (39) to be inserted into the connection port (17) is provided at an upper position, and the insertion pipe portion (39) and the refrigerant liquid outlet pipe (5) are provided inside the joint member (37).
A refrigerant inlet passage (40) communicating with the inside is provided.
Then, a through-hole mounting hole (42) through which a bolt (41) for connecting the joint member (37) to the receiver head (15) is inserted.
Of the right side flat surface (2
It is opened to 8). Joint member (37) and head (15)
Means that the right flat surface (28) is brought into contact with the left flat surface (16) of the liquid receiver head (15) in a state where the insertion pipe section (39) is inserted into the port (17), and the bolt (41 ) Is the mounting hole (4
It is flange-coupled by being screwed into the screw hole (20) of the head (15) through 2).

Further, a charge valve (44) is connected to the flat upper surface of the joint member (37), and the refrigerant inlet passage (4
It is said to have been communicated with 0).

Further, the refrigerant liquid pipe (6) connecting the liquid receiver (2) and the connection block (3) has a flat surface (one end of which is directed obliquely inward and forward in the connection block (3)). 46), which is connected to the lower position and communicates with the expansion valve side pipe connection port (34) through the internal passageway (47). The refrigerant liquid pipe (6) extends obliquely forward from the connecting block (3) toward the condenser core side, and the liquid receiver (2) is received from the front lower side to the right of the liquid receiver (2). ) Is extended upward, and is connected to the port (19) of the right side flange coupling surface (18) of the head (15) of the liquid receiver (2).

For this connection, a flange coupling type block-shaped joint member (49) is provided at the end of the refrigerant liquid pipe (6). That is, as shown in FIG. 2, the end portion of the refrigerant liquid pipe (6) is bent toward the rear of the condenser and connected to the flat front surface of the joint member (49). And
The joint member (49) has a flat connection surface (50) on the left side, and the connection surface (50) has a head (15) of the liquid receiver (2).
The insertion pipe part (51) to be inserted into the connection port (19) of the right side connection surface (18) is provided at an upper position, and the insertion pipe part (51) is provided inside the joint member (49). A refrigerant outlet passage (52) communicating with the inside of the refrigerant liquid pipe (6) is provided. Then, the joint member (49) is connected to the receiver head (15).
A through-hole mounting hole (54) through which a bolt (53) for connecting to is inserted is formed in the left flat surface (50) adjacent to the lower side of the insertion pipe section (51). The left flat surface (50) of the joint member (49) is brought into contact with the right flat surface (18) of the receiver head (15) in a state where the insertion pipe portion (51) is inserted into the port (19). And is flange-connected with the bolt (53).

As shown in FIG. 1, the refrigerant gas inlet pipe (4) of the condenser (1) has a right side header (8).
It is projected outward from the upper position and bent downward,
A connection port (33) whose tip is connected to the flat upper surface of the connection block (3) and which connects the refrigerant gas pipe on the compressor side through the inlet passage (48) inside the block (3).
It is said to have been communicated with.

In the above structure, since the liquid receiver (2) is held by the condenser (1) by the bracket (13) and the two are integrated, the work of disposing and assembling these to the vehicle body is performed. They can be performed integrally, and these disposing operations can be performed easily and efficiently.

Moreover, since the condenser (1) and the liquid receiver (2) are connected in advance by the refrigerant liquid pipe (5), the refrigerant gas pipe from the compressor is used at the site. It suffices to connect the condenser (1) and the refrigerant liquid pipe from the expansion valve to the receiver (2), and therefore the piping work for the condenser (1) and the receiver (2). Is simplified, and the same work can be performed easily and efficiently.

In addition, there is provided a connection block (3) of a port aggregation type provided with respective connection ports (33) (34) for connecting the refrigerant liquid pipe on the expansion valve side and the refrigerant gas pipe on the compressor side. Since the connection block (3) is connected to the refrigerant gas inlet pipe (4) from the condenser (1) and the refrigerant liquid pipe (6) from the liquid receiver (2). , A refrigerant liquid pipe on the expansion valve side and a refrigerant gas pipe on the compressor side for each connection port (33) (34) of the connection block (3),
Connection can be made at the same connection work position, and piping work can be performed more easily and efficiently.

Moreover, the mounting hole (35) is provided between the ports (33) and (34) in the block (3) for external pipe connection.
Is provided, since it is configured to connect the aggregate-type unillustrated connecting block, which connects the refrigerant gas pipe on the compressor side and the refrigerant liquid pipe on the expansion valve side, with a bolt and a nut in a flange coupling type, The connection work between the two external pipes can be performed even more easily and efficiently.

Both the refrigerant gas inlet pipe (4) and the outlet pipe (5) of the condenser (1) are connected to one header (8), that is, the right header (8), and receive the liquid. The container (2) is also arranged near the right header (8), and the external pipe connecting block (3) is also arranged near the right header (8). Therefore, the length of each of the pipes (4), (5), and (6) can be made extremely short, and the installation space on the vehicle body can be reduced, and at the same time, in terms of performance and appearance. It can exert excellent effects.

Further, since the refrigerant liquid pipes (5) and (6) are connected to the liquid receiver (2) by flange coupling using the joint members (37) and (49), the connection is bolted. It can be easily and efficiently performed by using (41) and (53).

A pressure switch (29) and a high pressure switch (30) are connected to the head (15) of the liquid receiver (2), and a charge valve (29) is attached to the left joint member (37). 44) are connected so that they can be collectively equipped, so that these accessory devices can be advantageously attached in space.

[0033]

As described above, according to the present invention, since the liquid receiver is held by the condenser and the both are integrated, the work of disposing them on the vehicle body or the like can be performed integrally. You can
These arranging operations can be performed easily and efficiently.

Moreover, since the condenser and the liquid receiver are connected in advance by the refrigerant liquid pipe, at the site,
It is only necessary to connect the refrigerant gas pipe from the compressor to the condenser and connect the refrigerant liquid pipe from the expansion valve to the receiver, so that the piping work for the condenser and the receiver is simplified. Work can be performed easily and efficiently.

In addition, a port-integrated type connection block provided with each connection port for connecting the refrigerant liquid pipe on the expansion valve side and the refrigerant gas pipe on the compressor side is provided, and the connection block is provided with a condenser. Since it is assumed that the refrigerant gas inlet pipe from and the refrigerant liquid pipe from the receiver are connected, for each connection port of this connection block, the refrigerant liquid pipe on the expansion valve side and the compressor side The refrigerant gas pipe can be connected at the same connection work position, and the piping work can be performed more easily and efficiently.

[Brief description of drawings]

FIG. 1 is an enlarged perspective view of a main part of a condenser with a liquid receiver.

FIG. 2 is an exploded perspective view showing an enlarged pipe connection portion of the liquid receiver.

3A and 3B show an overall configuration of a liquid receiver, wherein FIG. 3A is a vertical sectional view and FIG. 3B is a plan view.

FIG. 4 is a perspective view showing a connection block.

5A and 5B show an overall configuration of a condenser with a liquid receiver, wherein FIG. 5A is a front view and FIG. 5B is a side view.

FIG. 6 is an enlarged plan view of a main part of a condenser with a liquid receiver.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Condenser 2 ... Liquid receiver 3 ... Connection block 4 ... Refrigerant gas inlet pipe 5 ... Refrigerant liquid outlet pipe 6 ... Refrigerant liquid pipe 33 ... Gas pipe connection port 34 ... Liquid pipe connection port

Claims (1)

[Claims] 1. A pipe connecting block provided with a gas pipe connecting port for connecting a refrigerant gas pipe from a compressor and a liquid pipe connecting port for connecting a refrigerant liquid pipe from a pressure reducing mechanism such as an expansion valve. The refrigerant gas inlet pipe of the condenser is provided in the pipe connection block,
The refrigerant liquid outlet pipe of the condenser is connected to the gas pipe connection port while being connected to the liquid receiver held in the condenser, and the refrigerant liquid pipe extended from the liquid receiver. Is in communication with the pipe connection block and the liquid pipe connection port,
A condenser with a receiver characterized by being connected.