KR200336451Y1 - Structure of a receiver-drier and opening and closing-valve and receiver-tank in the bus-cooler - Google Patents

Abstract

The present design integrates the receiver dryer, receiver tank and on / off valve into a single assembly, which reduces the connection area and reduces the leakage of refrigerant, and reduces the installation space. It is an object of the present invention to provide an integrated receiver dryer, an on-off valve and a receiver tank of a bus cooler which improves work efficiency such as eliminating the need for piping work.

An integrated receiver dryer, an on-off valve and a receiver tank of the bus cooler according to the present invention for achieving the above object includes a connection block having a flow path formed therein so as to penetrate the upper and lower ends thereof; An upper side cylinder having one end detachably coupled to one end side of the connection block so as to communicate with the flow path, and the other end having an inlet port; A lower side cylinder having one end detachably coupled to the other end side of the connection block so as to communicate with the flow path, and the other end having an outlet port; A receiver drier embedded in said lower cylinder; It is characterized in that it comprises a shut-off valve coupled to the connection block for opening and closing the flow path.

Description

Structure of a receiver-drier and opening and closing-valve and receiver-tank in the bus-cooler

The present design integrates the receiver dryer, receiver tank and on / off valve into a single assembly, which reduces the connection area and reduces the leakage of refrigerant, and reduces the installation space. It is related with the structure of the integrated receiver dryer, the on-off valve and the receiver tank of the bus cooler which improved the work efficiency, such as not having to carry out the piping work.

Generally, a low heat source is required for cooling, but as a low heat source of an automotive air conditioner, a liquid called zircol zipol methanol is used to take heat away from the surroundings when vaporized. Since such liquids are called refrigerants, there is an environmental problem caused by the refrigerants. Therefore, these refrigerants are harmless to the human body, chemically stable, and have a high ability to desorb heat.

In order to continuously obtain a low heat source using the refrigerant, it is necessary to liquefy the vaporized refrigerant once again, and for reference, the refrigeration cycle shown in FIG. 1, that is, the compressor (1) → condenser (2) → expansion valve (3). → the evaporator 4 is adopted to repeat the liquefaction and vaporization via the circulation path formed by the compressor 1. This approach is called a vapor compression refrigeration cycle.

2 is a block diagram illustrating a refrigerant flow path of a refrigeration cycle applied to a general vehicle, in which 1 is a compressor, 2 is a condenser, 3 is an expansion valve, 4 is an evaporator, 5 is a receiver tank, and 6 is a receiver dryer. Will be shown respectively.

The compressor (1) serves to suck the refrigerant gas of the evaporator (4), compress and send it to the condenser (2) at high temperature and high pressure.

The condenser 2 cools the high-temperature / high-pressure refrigerant gas by the driving wind of a vehicle and a forced fan to liquefy the refrigerant.

The receiver tank 5 serves to temporarily store the refrigerant liquefied by the condenser 2.

The receiver drier 6 has a filter and a moisture absorbent enclosed therein in order to remove water and dust in the refrigerant via the receiver tank 5.

The expansion valve (3) is to inflate the liquid refrigerant flowing through the receiver dryer (6) in a small hole to rapidly expand, and to convert into a low-temperature, low-pressure free phase refrigerant that is easy to vaporize.

It senses the temperature inside the car with a heat sink and increases or decreases the degree of opening and closing the valve so that the degree of superheat is constant.

In addition, the evaporator 4 causes the refrigerant passing through the expansion valve 3 to evaporate and vaporize, thereby depriving the surrounding air of heat.

Therefore, when passing indoor air through the evaporator (4) performs cooling and dehumidification.

Referring to the circulating action of the refrigerant by the refrigerating cycle as described above as follows.

First, the refrigerant gas is sucked into the compressor 1 from the evaporator 4, and is compressed by a normal compression action in the compressor 1 to a gas state of high temperature and high pressure (about 70 DEG C, 15 kgf / cm2). do.

The high-temperature, high-pressure refrigerant gas is sent to the condenser 2, whereby forced air is cooled by the outside air and the condenser cooling fan to liquefy.

That is, the liquefied refrigerant passes through the receiver tank 5, passes through the receiver drier 6, removes moisture and dust, and then flows into the expansion valve 3.

In the expansion valve 3, the high-pressure liquid refrigerant rapidly expands, enters the evaporator 4 in a low temperature, low pressure fog state.

As such, the refrigerant introduced into the evaporator 4 takes heat from the surrounding air through the blower fan to cool the surroundings of the evaporator 4 as vaporization occurs, and the evaporator 4 from the misty refrigerant to the gas state. And exits and is sucked back into the compressor (1).

In this way, the refrigerant circulates through the refrigerant cycle and performs a cooling operation.

In addition, the above-described refrigerant cycle in the prior art is provided with an on-off valve (not shown) for blocking the flow of the refrigerant in the flow of the refrigerant in case of trouble or the like.

However, since the receiver tank 5 and the receiver drier 4 are continuously provided separately and provided separately, the number of working steps is increased because separate piping work is required for each part. .

In addition, the opening and closing valve (not shown) for blocking the refrigerant flow is also provided separately, so that each part has a separate pipe work, and thus there is a disadvantage in that the number of working steps increases.

In addition, since the receiver tank, the receiver dryer, and the opening / closing valve are installed at different positions independently from each other, there is a problem in that the leakage of the refrigerant increases as they are connected to each other.

In addition, since the receiver tank, the receiver drier, and the opening / closing valve are installed at different positions independently from each other, the receiver space is inefficiently wasted and a lot of space constraints occur when designing the mounting thereof.

The present invention was devised to solve the above problems, and by integrating a unit such as a receiver drier, a receiver tank, and an opening / closing valve into one assembly, the connection area is reduced, so that leakage of the refrigerant is reduced, and an installation space is Its purpose is to provide an integrated receiver dryer, an on-off valve and a receiver tank of a bus cooler that improves work efficiency, such as being small and not subject to space constraints in the design of installation, and requiring no additional piping work.

1 is a schematic configuration diagram of a general refrigeration cycle.

2 is a block diagram illustrating a refrigerant flow path of a refrigeration cycle applied to a typical vehicle.

3 is a view showing a state in which the flow path is closed in the present invention.

Figure 4 is a view showing a state in which the flow path is open in the present invention.

5 is a view showing another embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

30: connection block 31: upper side block

32: lower side block 33: fastening bolt

30a: Euro 30b: All the euros

30c: Backside of the flow path 30d: Central part of the flow path

30e: side groove 41: inlet port

40: upper side cylinder 51: outlet port

50: lower cylinder body 60: receiver dryer

70: closing valve 73a: guide ball

73: guide body 71: opening and closing portion

72: operation unit 74: opening and closing member

75 ring member 80 elastic spring

An integrated receiver dryer, an on-off valve and a receiver tank of the bus cooler according to the present invention for achieving the above object, the connection block is formed in the passage so that the upper and lower ends penetrate; An upper side cylinder having one end detachably coupled to one end side of the connection block so as to communicate with the flow path, and the other end having an inlet port; A lower side cylinder having one end detachably coupled to the other end side of the connection block so as to communicate with the flow path, and the other end having an outlet port; A dryer embedded in the lower cylinder; It is characterized in that it comprises a shut-off valve coupled to the connection block for opening and closing the flow path.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the structure of the integrated receiver dryer and the on-off valve and the receiver tank of the bus cooler according to the present invention in detail as follows.

3 is a view showing a state in which the flow path is closed in the present invention, Figure 4 is a view showing a state in which the flow path is open in the present invention, Figure 5 is a view showing another embodiment of the present invention.

As shown in the drawing, the present invention includes a connection block 30, an upper cylinder 40, a lower cylinder 50, a dryer 60, and an opening / closing valve 70.

The connection block 30 has a flow path 30a formed therein so as to penetrate the upper and lower ends thereof.

The flow path 30a is formed in a shape for determining an accurate position. The flow path portion 30b having a predetermined depth is formed to open the upper surface of the connection block 30, and is parallel to the flow path portion 30b. A flow path rear portion 30c having a predetermined depth is formed so that the lower surface of the connection block 30 is spaced apart from each other, and the side groove 30e is formed in communication with the entire flow path portion 30b from the side of the connection block 30. The side groove 30e extends to communicate with the flow path rear portion 30c.

That is, the side groove 30e and the flow path rear part 30c are formed in communication with each other via the flow path center part 30d.

The upper cylinder 40 is detachably coupled to one end of the connection block 30 so that one end is in communication with the flow path 30a, and the inlet port 41 is fixed to the other end by welding or the like. do.

Here, the connection block 30 and the upper cylinder 40 is coupled to each other by a method such as welding.

The lower side cylinder 50 is detachably coupled to the other end side of the connection block 30 so that one end thereof can communicate with the flow path 30a, and the other end is provided with an outlet port 51.

Here, the connecting block 30 and the lower cylinder 40 is coupled to each other by a method such as welding.

The receiver dryer 60 is built in the lower cylinder 50.

The receiver dryer 60 contains a desiccant 61 that absorbs and retains moisture, and is wrapped in a mesh wire 62 and elastic rubber (not shown) so that the desiccant 61 does not escape to the outside. have.

The opening and closing means 70 is coupled to the connection block 30 serves to open and close the flow path (30a).

The open / close valve 70 includes a guide body 73, an open / close member 74, and a ring member 75.

The guide body 73 is screwed into the side groove 30e formed through the side of the connection block 30 so as to communicate with the flow path 30a, and has a guide hole 73a through which both ends pass.

The opening and closing member 74 is installed in the guide hole 73a of the guide body 73 so as to slide closely, one end portion of the opening and closing portion 71 for opening and closing the flow path central portion 30d formed in the flow path (30a) And, the other end is provided to protrude to the outside of the guide body 73, and has a control unit 72 to rotate, push or pull with a screw.

The sealing member 75 is interposed between the outer surface of the opening and closing member 73 and the inner surface of the guide hole (73a) so that the refrigerant is external through the guide hole (73a) of the guide body 73 through the flow path (30a) It acts as a seal to prevent the discharge of gas.

Here, the flow path center portion 30d is formed at the bent portion in the structure in which the flow path 30a is bent stepwise.

On the other hand, an elastic spring 80 is built-in between the receiver dryer 60 and the connection block 30.

Here, the spring 80 is used to elastically respond to the volume change caused by the consumption of the desiccant 61 to remove the gap.

In addition, the connection block 30 is composed of an upper side connection block 31 and a lower side connection block 32 which are detachably coupled to each other by a fastening bolt 33.

In the present invention described so far, the inlet port 41 is composed of an upper cap 41a screwed to the upper end of the upper cylinder 40, and an inlet pipe 41b screwed to the center of the upper cap 41a. .

The outlet port 51 includes a lower cap 51a screwed to the lower end of the lower cylinder 50, and an outlet pipe 51b screwed to the center of the lower cap 51a.

In the configuration of the present invention described above, the connection block 30 is formed so that the upper and lower ends penetrate, and the upper and lower ends and upper and lower sides of the upper cylinder 40 and the lower cylinder 50, the refrigerant is the upper side It means that the flow through the cylinder 40 and the connecting block 30 and the lower cylinder 50.

On the other hand, when viewed from the mounting direction of the present invention, it turns out that it is installed in the horizontal direction in the horizontal direction.

The present invention configured as described above has implemented the receiver tank, the receiver drier and the opening / closing valve as a single assembly, and when a trouble occurs in the flow of the refrigerant, for example, when the desiccant 61 needs to be replaced, the refrigerant It should function to block the flow of, in this case it will be able to effectively block the flow of the refrigerant when the on-off valve 70 is switched as shown in FIG.

In addition, when the on-off valve 70 is used, it is also applied to the maintenance and replacement of parts and units.

And, in the configuration of the opening and closing means 70 may be provided with a driving means that can be pushed or pulled by applying an external force automatically to the operation unit 72 to automatically open and close the flow path (30a) by an external control.

As an example of the driving means, as shown in FIG. 5 operated according to an electrical signal, the solenoid 90 may be installed in the operation unit 72.

And, of course, it is also possible to use the power transmission means such as the rack and pinion by moving the driving force of the motor or the like.

As described above, according to the present invention, by integrating a unit such as a receiver tank and an opening / closing valve into one assembly, the connection area is reduced, thereby reducing the leakage of refrigerant, and the installation space to be installed is reduced, thereby reducing the space constraints in the design of the installation. It improves the work efficiency, such as no need for additional piping work.

Claims (7)

A connection block 30 having a flow path 30a formed therein so that the upper and lower ends thereof pass therethrough; An upper end cylinder 40 having an inlet port 41 is detachably coupled to one end side of the connection block 30 so that one end is in communication with the flow path 30a; A lower side cylinder 50 which is detachably coupled to the other end side of the connection block 30 so as to communicate with 30a, and an outlet port 51 at the other end; A dryer (60) embedded in the lower cylinder (50); Structure of the integrated receiver dryer and on-off valve and receiver tank of the bus cooler characterized in that it comprises an opening and closing means (70) coupled to the connection block (30) to open and close the flow path (30a). The method of claim 1, wherein the opening and closing means 70, A guide body (73) screwed to a flow path rear portion (30c) formed through the side of the connection block (30) so as to communicate with the flow path (30a) and having guide holes (73a) through both ends thereof; It is installed in the guide hole (73a) of the guide body 73 in close sliding movement, one end of the opening and closing portion 71 for opening and closing the flow path (30a), the other end to the outside of the guide body (73) An opening / closing member (74) having an operation portion (72) installed to protrude to push or pull; An integrated receiver dryer, an on-off valve and a receiver tank of the bus cooler, comprising a sealing member 75 interposed between an outer surface of the opening and closing member 74 and an inner surface of the guide hole 73a. 3. The bus cooler of claim 2, wherein the flow path 30a is formed to have a stepped bent shape, and the opening / closing portion 71 contacts / disengages the entire flow path portion 30b of the flow path 30a. Integral receiver dryer, on-off valve and receiver tank structure. The integrated receiver dryer and the shut-off valve of the bus cooler according to any one of claims 1 to 3, wherein an elastic spring (80) is installed between the dryer (60) and the connection block (30). The structure of the receiver tank. The bus according to claim 4, wherein the connection block (30) comprises an upper connection block (31) and a lower connection block (32) which are detachably coupled to each other by a fastening bolt (33). Integral receiver dryer, shut-off valve and receiver tank of cooler. 6. The structure of an integrated receiver dryer, an on-off valve and a receiver tank of a bus cooler according to claim 5, further comprising driving means for pushing or pulling the operation unit (72) according to a control signal from the outside. 7. The structure of an integrated receiver drier, an on-off valve and a receiver tank of a bus cooler according to claim 6, wherein the driving means is a solenoid (90).