JPH06194005A - Joint device of liquid receiver for cooling equipment - Google Patents

Abstract

PURPOSE:To reduce the number of manufacturing processes and that of components by forming a refrigerant passage whereby a connection port on the first joining part side fitted in and connected to an inflow port provided in the top of a liquid receiver is made to communicate with a connection port on the second joining part side fitted in and connected to an outflow port provided in a flange part of a condenser. CONSTITUTION:A connection port 62 on the first joining part 60 side is fitted in an inflow port 21 of a liquid receiver 2 and a first joining part 60 is positioned on the top 20 of the liquid receiver 2. In this state, a bolt 68 is screwed into a screw hole 23 through a fitting port 66 and thereby a joint member 6 is fastened to the liquid receiver 2. Besides, a connection port 63 on the second joining part 61 side is fitted in an outflow port 11 of a condenser 1 and a second joining part 61 is positioned on a flange part 10. In this state, a bolt 69 is screwed into a screw hole 12 through a fitting hole 67 and thereby the joint member 6 is fastened to the condenser 1. By this method, the liquid receiver 2 is positioned and fixed to the condenser 1 through the intermediary of the joint member 6 and, at the same time, the inflow port 21 of the liquid receiver 2 and the outflow port 11 of the condenser 1 are connected together through the intermediary of a refrigerant passage 64 inside the joint member 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint device for a liquid receiver mainly used for a vehicle cooling device.

[0002]

2. Description of the Related Art As shown in FIG. 5, an air conditioner has a condenser 1
The refrigerant is separated into gas and liquid in the liquid receiver 2 on the downstream side, and the liquid-phase refrigerant is allowed to flow from the liquid receiver 2 to the evaporator 4 via the expansion valve 3,
The refrigerant vaporized in (1) is recirculated to the condenser 1 via the compressor 5. Further, as shown in FIG. 6, the condenser 1 having the main condenser portion 1A and the sub condenser portion 1B is used, and the refrigerant condensed in the main condenser portion 1A is returned to the sub condenser portion 1B via the liquid receiver 2. From the sub-condensing unit 1B to the expansion valve 3, the evaporator 4,
It is also known that the refrigerant is returned to the main condenser section 1A via the compressor 5.

In a vehicle cooling device, conventionally, a liquid receiver is attached to a vehicle body via a bracket, and piping work for the liquid receiver is performed using a piping member such as a tube. Here, as shown in FIG. 7, the bracket is composed of a band a for holding the liquid receiver 2 and a stay b fixed to the vehicle body fixed to the band a. When the liquid receiver 2 and the bracket are assembled, The jigs are used to position the two to hold the liquid receiver 2 in the band a.

[0004]

In the above, the positioning work using the jig for the liquid receiver and the bracket is required, and in addition to the work for mounting the liquid receiver on the vehicle body, the piping for the liquid receiver is required. This requires work, increasing the number of steps, and further requiring a bracket in addition to the piping member, increasing the number of parts and increasing the cost. In view of the above points, the present invention is
It is an object of the present invention to provide an apparatus capable of reducing the number of steps and the number of parts.

[0005]

[Means for Solving the Problems] In order to achieve the above object,
The present invention provides a block-shaped joint member having a first joint portion that is joined to a top portion of a liquid receiver and a second joint portion that is joined to a flange portion of a condenser, and the receiver member is provided inside the joint member. First fittingly connected to the inlet provided at the top of the
It is characterized in that a refrigerant passage is formed which connects the connection port on the joint side and the connection port on the second joint part fitted and connected to the outlet provided on the flange of the condenser.

[0006]

The liquid receiver and the joint member are positioned by fitting the inlet at the top of the receiver and the connection port at the side of the first joint, and the outlet at the flange of the condenser and the second joint. The condenser and the joint member are positioned by fitting with the connection port on the side of the section, and thus the receiver is positioned and fixed to the condenser via the joint member, and at the same time, the pipe between the receiver and the condenser is provided. Also done. In this case, if a pipe member connected to the outflow port provided at the top of the liquid receiver is fixed to the joint member, piping work of the pipe member for the outflow port of the liquid receiver is unnecessary. When the receiver is provided between both condensers of the condenser having the main and sub condensers as in the cooling device of FIG. 6 described above, the joint member is provided with the inlet of the receiver and the main condenser. Forming a first refrigerant passage communicating with the outlet of the liquid receiving section and a second refrigerant passage connecting the outlet of the liquid receiver with the inlet of the sub-condensing portion, and connecting the liquid receiver to the main and sub-condensing portions. It is desirable that the piping between them can be obtained through a joint member. In this case, the joint member functions as two pipe members, and the number of pipe members can be reduced. Further, if the step portion is formed on the flange portion of the condenser and the second joint portion of the joint member is formed on the stepped surface having the step portion corresponding to the step portion, the step portion of the second joint portion is formed. By sliding the joint member to the flange side with the step contacting the flange, the connection part on the second joint side is smoothly fitted to the outlet of the flange by using the step as a guide. Connection is possible and fitting work becomes easy.

[0007]

1 shows an embodiment in which the present invention is applied to a joint device of a liquid receiver 2 for a cooling device shown in FIG. 5, and the liquid receiver 2 is connected to a condenser 1 via a block-shaped joint member 6. It was adapted to be attached to the flange portion 10 of. The flange 10 is provided with an outlet 11 of the condenser 1, and the top 20 of the liquid receiver 2 is provided with an inlet 21 and an outlet 22.

The joint member 6 comprises a first joint portion 60 at the lower end which is joined to the top portion 20 of the liquid receiver 2 and a second joint portion 61 which is joined to the flange portion 10 of the condenser 1 and which is located at the upper rear surface. And a cylindrical connection port 62 fitted into the inflow port 21 of the liquid receiver 2 at the first joint portion 60, and a cylindrical connection port 63 fitted into the outflow port 11 of the condenser 1 at the second joint part 61. And a refrigerant passage 64 communicating with both connection ports 62 and 63 is formed inside the joint member 6. Reference numeral 65 in the figure denotes an O-ring attached to each of the connection ports 62 and 63. Both connection ports 6
2 and 63 are flat openings, and inlet 21 and outlet 1
1 is formed into a tubular shape, and both connection ports 62 and 63 are connected to the inflow port 2
1 and the outlet 11 may be fitted and connected.

Mounting holes 66 and 67 are formed in the first joint portion 60 and the second joint portion 61, respectively, and the connection port 62 on the first joint portion 60 side is connected to the inlet 21 of the liquid receiver 2. To position the first joint 60 on the top 20 of the receiver 2,
In this state, the bolt 68 is screwed into the screw hole 23 of the top 20 of the receiver 2 through the mounting hole 66 of the first joint 60 to fasten the joint member 6 to the receiver 2, and the second joint 61 side. The connection port 63 of the condenser 1 is fitted into the outflow port 11 of the condenser 1 to position the second joint portion 61 on the flange portion 10 of the condenser 1. In this state, the flange portion 10 is passed through the mounting hole 67 of the second joint portion 61. The bolt 69 is screwed into the screw hole 12 of the above and the joint member 6 is fastened to the condenser 1. According to this, the liquid receiver 2 is positioned and fixed to the condenser 1 via the joint member 6, and at the same time, the inflow port 21 of the liquid receiver 2 and the outflow port 11 of the condenser 1 are connected to the refrigerant passage in the joint member 6. Connected via 64.

Reference numeral 7 in the figure denotes a piping member connected to a component such as an expansion valve on the downstream side of the liquid receiver 2, and receives a cylindrical connection port 71 projecting from the lower surface of a joint 70 at the end of the piping member 7. Liquid container 2
The joint 70 is fastened to the liquid receiver 2 by fitting the bolt 73 into the screw hole 24 of the top 20 of the liquid receiver 2 through the mounting hole 72 formed in the joint 70.

As shown in FIG. 2, this piping member 7 is
Connection of the piping member 7 which is fixed to the joint member 6 by brazing or the like, and when the first joint portion 60 of the joint member 6 is joined to the top portion 20 of the liquid receiver 2, the piping member 7 protruding to the lower surface of the first joint portion 60. The end 74 may be fitted and connected to the outflow port 22 of the liquid receiver 2.

Next, an embodiment applied to the liquid receiver 2 interposed between the main and sub condensation parts 1A and 1B of the condenser 1 as shown in FIG. 6 will be described with reference to FIG. In this example,
The condenser 1 has an upper flange 10 _{1 provided} with an outlet 11 ₁ of the main condenser 1A and an inlet 11 ₂ of the auxiliary condenser 1B.
Is fixed to the lower flange portion 10 ₂ which is opened, and the second joint portion 61 of the joint member 6 is formed so as to be joined across both flange portions 10 ₁ and 10 ₂ , and the second joint portion is formed. A pair of upper and lower cylindrical connection ports 63 ₁ and 63 ₂ fitted in the outflow port 11 ₁ and the inflow port 11 _{2, respectively} , are provided in the portion 61 so as to project.

The first joint 60 of the joint member 6
A pair of cylindrical connection ports 62 ₁ and 62 ₂ which respectively fit into the inflow port 21 and the outflow port 22 of the top portion 20 of the liquid receiver ₂ are projectingly provided in the joint member 6 and the first joint portion 60 side. Connection port 62 ₁
The first refrigerant passage 64 ₁ that connects the outlet 11 ₁ of the main condenser 1A and the inlet 21 of the liquid receiver 2 by connecting the second inlet 61 ₁ and the connection opening 63 ₁ on the second joint 61 side, and the first joint A second refrigerant that connects the connection port 62 ₂ on the part 60 side and the connection port 63 ₂ on the second joint part 61 side to connect the outflow port 22 of the liquid receiver ₂ and the inflow port 11 ₂ of the sub-condensing part 1B. A passage 64 ₂ was formed.

Then, a pair of mounting holes 6 matching the pair of screw holes 24 formed at the top of the liquid receiver 2 in the first joint 60.
6, the first joint 60 is fastened to the receiver 2 with two bolts 68, and the second joint 61 has screw holes 12 formed in the flanges 10 ₁ and 10 _2. 1 that matches
A pair of mounting holes 67 is formed so that the second joint portion 61 is fastened to the condenser 1 with the two bolts 69. According to this, the liquid receiver 2 is positioned and fixed to the condenser 1 through the joint member 6 as in the above embodiment, and at the same time, the outlet 11 ₁ of the main condenser 1A and the inlet of the liquid receiver 2 are simultaneously. 21 and a pipe between the outlet 22 of the liquid receiver 2 and the sub-condensing unit 1B.

By the way, in the vehicle cooling system, since the condenser 1 is arranged in a complicated place in the engine room, the second joint portion 61 of the joint member 6 is connected to the outflow ports 11 ₁ and 11 ₂ of the condenser 1. When fitting and connecting the connection ports 63 ₁ and 63 ₂ on the side, it is difficult to visually check the positional relationship between the two, and the fitting work may be troublesome. In this case, as shown in FIG.
Both the flange portions 10 ₁ and 10 ₂ are offset in the front-rear direction so that the upper surface of the lower flange portion 10 ₂ is the upper flange portion 1
If the second joint portion 61 of the joint member 6 is formed on the stepped surface having the step portion 61 a corresponding to the step portion 14, the step portion 6 is formed on the step portion 13 with respect to 0 ₁ .
By sliding the joint member 6 with 1a placed on the step portion 13, the connection portions 63 ₁ and 63 ₂ are smoothly fitted to the outflow ports 11 ₁ and 11 ₂ of the condenser ₁ using the step portion 13 as a guide. And the fitting work becomes easy.

In the embodiment shown in FIG. 1 as well, since the upper surface of the flange portion 10 becomes a step portion with respect to the general surface,
By forming the first joint portion 61 on a stepped surface having an overhanging protrusion at the upper end thereof, and sliding the joint member 6 with the stepped portion on the lower surface of the protrusion placed on the upper surface of the flange portion 10. The connection port 63 on the second joint portion 61 side can be smoothly fitted into the outflow port 11 of the condenser 1.

Although not shown, functional parts such as melt bolts and side glasses may be attached to the joint member 6 to reduce the number of parts and the number of attaching steps.

[0018]

As is clear from the above description, according to the first aspect of the invention, the liquid receiver can be positioned and fixed to the condenser through the joint member, and the positioning work using a jig or the like becomes unnecessary. Also, the joint member functions as a piping member between the receiver and the condenser and a mounting bracket for the receiver, eliminating the need for a separate bracket, reducing the number of parts, and mounting the receiver. At the same time, piping is provided between the liquid receiver and the condenser, which reduces the number of steps and can significantly reduce the cost. Further, according to the invention of claim 2, the piping work of the piping member on the downstream side with respect to the liquid receiver is not necessary, and according to the invention of claim 3, the joint member has the liquid receiver and the main and sub condensations. It functions as two pipe members that connect the parts to each other, and the number of pipes and the number of pipe steps can be reduced. Further, according to the invention of claim 4, the connection port on the second joint portion side of the joint member can be smoothly fitted and connected to the outlet and inlet of the condenser, and the fitting work becomes easy.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an example of the device of the present invention.

FIG. 2 is a perspective view of a joint member of a modified example of FIG.

FIG. 3 is an exploded perspective view of another embodiment of the device of the present invention.

FIG. 4 is a side view of a main part of the modified example of FIG.

FIG. 5 is a block diagram of an example of a cooling device.

FIG. 6 is a block diagram showing another example of the cooling device.

FIG. 7 is an exploded perspective view of a conventional example.

[Explanation of symbols]

1 Condenser 1A Main condensing part 1B Sub-condensing part 10, 10 ₁ , 10 ₂ Flange part 11 Condenser outlet 11 ₁ Main condensing part outlet 11 ₂ Sub-condensing part inlet 13 Step part 2 Liquid receiver 20 Top of the receiver 21 Inlet of the receiver 22 Outlet of the receiver 6 Joint member 60 First joint 61 Second joint 61a Step 62, 62 ₁ , 62 ₂ Connection on the first joint side 63, 63 ₁ , 63 ₂ Connection port 64 on the second joint side
Refrigerant passage 64 ₁ First refrigerant passage 64 ₂ Second refrigerant passage 7 Piping member

Claims (4)

[Claims] 1. A joint device for a receiver provided on the downstream side of a condenser, comprising a first joint portion joined to the top portion of the receiver and a second joint portion joined to a flange portion of the condenser. A block-shaped joint member having the same is provided, and inside the joint member, a connection port on the side of the first joint part that is fitted and connected to an inlet port provided at the top of the liquid receiver and a flow provided at the flange part of the condenser. A joint device for a liquid receiver for a cooling device, characterized in that a refrigerant passage communicating with a connection port on the side of the second joint portion fitted and connected to the outlet is formed. 2. The joint device for a receiver for a cooling device according to claim 1, wherein a pipe member connected to an outflow port provided at the top of the receiver is fixed to the joint member. 3. A joint device for a liquid receiver, which is interposed between a main condenser part and a sub-condenser part of a condenser having a main condenser part and a sub-condenser part, the joint device being joined to the top part of the liquid receiver. A block-shaped joint member having a first joint portion and a second joint portion that is joined to the flange portion of the condenser portion is provided, and the joint member is fitted and connected to the inflow port provided at the top of the liquid receiver inside the joint member. A first refrigerant passage that passes through a connection port on the side of the first joint part and a connection port on the side of the second joint part that is fitted and connected to the outlet of the main condensing part provided in the flange part of the condenser; The connection port on the side of the first joint portion which is fitted and connected to the outlet provided on the top of the liquid container and the side of the second joint portion which is connected to the inlet of the sub-condensing unit provided on the flange portion of the condenser. A joint device for a liquid receiver for a cooling device, wherein a second refrigerant passage communicating with the connection port is formed. 4. The step portion is formed on the flange portion of the condenser, and the second joint portion of the joint member is formed on a stepped surface having a step portion corresponding to the step portion. 4. A joint device for a liquid receiver for a cooling device according to any one of items 1 to 3.