JPH04191120A - Condenser of air conditioner for vehicle - Google Patents

Abstract

PURPOSE:To eliminate blank caps as well as to enhance operability by fixing each join connector which concurrently acts as a plug for each upper end section of side tanks, and also has an introduction port communicated with the insides of the tanks, and thereby connecting each pipeline with flanges in a condenser furnished with the side tanks for an air conditioner for a vehicle. CONSTITUTION:A condenser 3 has vertically long side tanks 7 and 9 connected at both the ends of a communicating pipe 1 so as to be communicated with the communicating pipe 1. And joint connectors 11 and 27 are fitted onto the upper ends of the side tanks 7 and 9 in such a way as to concurrently act as a plug, pipelines 19 and 37 are then connected to the respective tanks with flanges 19 and 39, so that the side tank 7 and the side tank 9 are formed at a refrigerant intake side and a refrigerant takeoff side respectively. Blank caps 7a and 9a are provided for the lower ends of the respective side tanks 7 and 9. And introduction ports 13 (only the port at the tank 7 side is shown, the port at the tank 9 side is also similarly provided) which are communicated with the insides of the tanks 7 and 9, are provided for each joint connector so as to be communicated with the insides of the tanks.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) This invention relates to a capacitor for an air conditioner for an automobile.

(Prior art) Generally, in the case of a capacitor for an automobile air conditioner,
For example, as shown in Japanese Utility Model Application Publication No. 61-36424, left and right side tanks are connected and communicated with a communication pipe equipped with cooling fins, and high-temperature and high-pressure refrigerant gas sent from one side tank is passed through the communication pipe. As it passes through, it loses latent heat and liquefies, and is sent out from the other side tank.

(Issues to be solved by the invention jl!> As mentioned above, the condenser has the function of cooling and liquefying the refrigerant gas, and one of the left and right side tanks has piping for intake of the refrigerant gas. However, piping for refrigerant gas extraction is now connected to the other side tank.

In particular, in the case of a side tank for taking out refrigerant gas, as the refrigerant gas is cooled and liquefied, the refrigerant gas is taken out from a position below the side tank since it accumulates in the lower part.

Specifically, for example, as shown in FIG. 8, a connection bracket 107 for taking out refrigerant gas is provided below a side tank 105 connected to one end of a communication pipe 103 having cooling fins 101. A connecting butt 111 of a pipe 109 extending from a liquid tank (not shown) which will be the next process to 107 is connected by a bolt 113.

In this case, the condenser 115 is located at the front a of the engine room suitable for taking in outside air, as shown by the dotted line in FIG. 9, and in front of the radiator 117. (not shown), and the work space was extremely restricted by the auxiliary equipment on both sides and rear, making it difficult to ensure workability. In addition, since the connection bracket 111 must be installed in a downward position, the user is forced to take an awkward posture.
This was not desirable in terms of workability.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a condenser for an air conditioner for an automobile that has good workability and also functions as a side tank stopper.

[Structure of the Invention (Means for Solving the Problems) In order to achieve the above object, the present invention provides a condenser having left and right side tanks that are connected and communicated with a communication pipe provided with cooling fins. , a connecting connector that also serves as a stopper is fixed to the upper end of the side tank so as to close the upper end of the tank, and either the upper surface side or the side side of the connecting connector communicates with the inside of the side tank. A guide port is provided, and a connecting flange of a pipe is overlapped and coupled to the connection connector, so that the pipe and the guide port are connected and communicated with each other.

(Function) According to this capacitor, the connector is fixed to the upper end of the side tank, so when connecting the piping, it is possible to work from above where there is a relatively high degree of freedom, making it possible to avoid unnecessary work. You no longer have to be forced into a working posture. Additionally, the connector functions as a blind plug that closes off the upper side of the side tank.

(Embodiment) Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings of FIGS. 1 to 5.

In the figure, reference numeral 1 indicates a communicating tube of a condenser 3 formed in a tube shape. A plurality of communication pipes 1 are arranged in parallel and cooling fins 5 are provided.

Both ends of the communication pipe 1 are connected to vertically long left and right side tanks 7.
9, one side tank 7 is on the refrigerant intake side, and the other side tank 9 is on the refrigerant extraction side.

The lower end of the side tank 7 on the refrigerant intake side is closed off by a blind stopper 7a, and a connecting connector 11 is integrally fixed to the upper end by brazing. , .

The connection connector 11 has a guide hole 13 and a screw hole 15 that communicate with the inside of the side tank 7, and the guide port 13g of the guide hole 13 and the screw hole 15 are provided on the upper surface of the connection connector 11. . The upper surface of the connector 11 is a joining surface, and a connecting flange 19 of a pipe 17 extending from a compressor (not shown) that sucks in, compresses, and sends out high-temperature, high-pressure gas is overlapped and joined to this joining surface side. . As a result, the guide port 13a and the pipe F are connected and communicated with each other, and the mounting hole 21 of the connection flange 19 is overlapped and coupled.
A mounting bolt 23 is screwed into the screw hole 15 of the connector 11 .

Note that the connection flange 19 and the pipe 17 are fixed by brazing, and the joint surface between the pipe F and the guide port 13a is sealed with a sealing material 25 such as an O-ring.

On the other hand, the lower end of the side tank 9, which is the refrigerant extraction side, has a blind plug 9.
a and a connecting connector 2 at the upper end.
, 7 are fixed by brazing. Connection connector 2
7 has a screw hole 29 and guide ports 31 on the top and bottom surfaces.
a, 31. Each guide hole 31 having a diameter b is provided,
The screw hole 29 is provided on the upper surface of the connection connector 27, which is the coupling surface side.

The tip of a tube 33 extending from the lower side of the side tank 9 is integrally connected to the induction port 31 b provided on the lower surface of the connection connector 27 , and the refrigerant gas in the side tank 9 flows through the tube 33 to the connection connector 27 . It is designed to be guided by

Further, a connection flange 39 of a pipe 37 extending from the liquid tank 35 is overlapped and coupled to the upper surface of the connection connector 27, which is the coupling surface side, and the guide port 31g and the pipe 37 are connected and communicated. Overlapping connection flange 3
A mounting bolt 43 is screwed into the mounting hole 41 of 9 and the threaded hole 29 of the connection connector 27, and the connection flange 3
9 and the pipe 37 are fixed by brazing, and the joint surface between the pipe 37 and the induction port 31H is sealed with a sealing material 45 such as an O-ring.

Note that the side tank 7 and piping 17 on the refrigerant gas intake side
The suction side of the compressor (not shown), which sucks in and compresses refrigerant gas and sends it out at high temperature and high pressure, is connected to the evaporator, which removes the latent heat of evaporation from the surrounding air through fins and cools the air into cold air. Further, the evaporator is connected and communicated with the liquid tank 35 through an expansion valve (none of which is shown). Thereby, the refrigerant gas is forcibly sent to the condenser 3 by the compressor, passes through the liquid tank 35, the expansion valve, and the evaporator, and returns to the compressor again, repeating the cycle.

In the capacitor 3 configured in this way, for example,
To connect the piping 37 to the side tank 9 that is the refrigerant gas extraction side, connect the connecting flange 39 to the connecting connector 27 from above by overlapping it, and screw the mounting bolt 43 into the mounting hole 4] and the threaded hole 29. This completes the installation. At times, this attachment allows work to be carried out above where there is a relative degree of freedom, eliminating the need to force an unreasonable working posture.

In this case, the connection surface side should be connected to the connecting connector 2 as shown in FIG.
It is also possible to provide it on the side of 7. At this time, the screw hole 29 and the guide port 31g of the guide hole 31 are provided on the side of the connection connector 27.

On the other hand, since the upper part of the side tank 9 is closed by the connecting connector 27 and the connecting flange 39, there is no need to separately provide a blind plug, which can be omitted.

[Effects of the Invention] As explained above, according to the capacitor of the present invention, the piping installation work can be performed at the upper end of the side tank, which has a relatively large degree of freedom, so that the work is not forced into an unreasonable working posture. You will be able to work without any problems.

In addition, since the connector provided at the upper end of the side tank functions as a blind plug for the side tank, there is no need to install a separate blind plug, which is very favorable in terms of man-hours and cost reduction for installing the blind plug. Become something.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view showing how the piping is attached to the side tank on the refrigerant gas extraction side in the condenser of the present invention, Fig. 2 is a cross-sectional view of the same attachment part, and Fig. 3 is the condenser of the present invention. Fig. 4 is an exploded perspective view showing how the piping is attached to the side tank on the refrigerant gas intake side, Fig. 5 is a cross-sectional view of the same installation part, and Fig. 6 is a modification of the installation position. An exploded perspective view similar to FIG. 1 showing an example,
FIG. 7 is a cross-sectional view of the mounting portion same as above, FIG. 8 is an exploded perspective view similar to FIG. 1 showing the conventional example, and FIG. 9 is an explanatory view of the capacitor arranged in the engine room. 1...Communication pipe 3...Condenser 5...Cooling fin 7.9...Side tank 11.27...Connector 13.31...Guidance hole 13a, 31a...Induction port 17 .37...Piping 19.39...Connecting flange agent Patent attorney Hide Kazu Miyoshi 1...Communication pipe 3...Condenser 5...Cooling fin 7.9...Side tank 11.27 ...Connector 13.31...Guidance hole 13m, 311...Induction port 17.37...Piping 19.39...Connection 7 Lunge Fig. 2 ii 3 Fig. 4 Fig. 51!1 No. Figure 6 Figure 7 Figure 8

Claims (1)

[Claims] In a condenser equipped with left and right side tanks that connect and communicate with a communication pipe equipped with cooling fins, a connecting connector that also serves as a stopper is fixed to the upper end of the side tank so as to close the upper end of the tank, and the connection is made. An induction port that communicates with the inside of the side tank is provided on either the top surface side or the side surface of the connector, and a connecting flange of the piping is overlapped and coupled to the connecting connector, so that the piping and the induction port are connected and communicated with each other. A condenser for an automotive air conditioner characterized by: