KR101284425B1 - Receiver Dryer for car air conditioner - Google Patents

Abstract

In the receiver dryer for an automobile air conditioner, a desiccant bag is inserted therein, and a coolant inlet through which a coolant flows from a condenser is formed on an outer circumferential side thereof, and a coolant outlet through which a liquid coolant flows out into a sub-cooling zone. A tubular body having an opening formed at the lower portion thereof, a cap fitted to the opening of the main body, a filter body extrapolated to the cap, a baffle formed integrally with the upper portion of the filter body and having a through hole, and a lower portion of the tubular body having a through hole of the baffle. Provided is a receiver dryer for a vehicle air conditioner including a filter that extends in the direction of the desiccant bag and has a coolant flowing from the first inlet hole formed at an upper portion thereof to flow out the coolant into the through hole and combine with the desiccant bag.
Therefore, the liquid phase refrigerant and the gaseous phase refrigerant can be easily separated from the refrigerant flowing from the condenser, and the liquid refrigerant flowing into the refrigerant outlet can be smoothly discharged to the refrigerant outlet. Can improve.

Description

Receiver Dryer for Car Air Conditioning System {Receiver Dryer for car air conditioner}

The present invention relates to a receiver dryer for an automobile air conditioner, and more particularly, to a receiver dryer for an automobile air conditioner capable of improving the separation performance of a liquid phase and a gaseous phase of an incoming refrigerant.

Generally, the receiver drier is installed between the condenser and the expansion valve to temporarily store the liquid refrigerant flowing from the condenser so that the required amount can be supplied to the evaporator according to the cooling load, and at the same time, the refrigerant and liquid state of the non-condensed gas state from the condenser It separates the coolant and removes water and foreign substances contained in the coolant to supply a complete liquid coolant to the expansion valve.

However, the conventional receiver dryer does not have a good performance of separating the refrigerant from the condenser into the liquid phase and the gaseous refrigerant, respectively. Accordingly, there is a problem of degrading the performance of the condenser receiving the refrigerant stored from the receiver dryer.

The present invention can not only easily separate the liquid refrigerant and the gaseous refrigerant from the refrigerant flowing from the condenser, but also improve the separation performance of the liquid refrigerant and the gaseous refrigerant, thereby improving the performance and lifespan of the condenser and the receiver dryer. It is an object of the present invention to provide a receiver drier for an automobile air conditioner that can improve the performance.

In the receiver dryer for an automobile air conditioner, a desiccant bag is inserted therein, and a coolant inlet through which a coolant flows from a condenser is formed on an outer circumferential side thereof, and a coolant outlet through which a liquid coolant flows out into a sub-cooling zone. A tubular body having an opening formed at a lower portion thereof, a cap fitted to an opening of the main body, a filter body extrapolated to the cap, a baffle integrally formed at an upper portion of the filter body and having a through hole, and a lower portion of the baffle. A vehicle air conditioner comprising a filter including a coupling part which protrudes along the through hole in the direction of the desiccant bag and flows out the refrigerant from the first inlet hole formed at an upper portion thereof to flow out the refrigerant into the through hole and couples the desiccant bag. Provide a receiver dryer.

Therefore, the receiver dryer for an automobile air conditioner of the present invention can easily separate the liquid refrigerant and the gaseous refrigerant from the refrigerant flowing from the condenser through the coupling portion and the baffle, and the rotational movement of the liquid refrigerant introduced into In order to smoothly flow out the liquid refrigerant to the refrigerant outlet, the separation performance of the liquid refrigerant and the gaseous refrigerant and the flow of the refrigerant flows smoothly to improve the performance and life of the condenser and receiver dryer, etc. Can be.

In addition, the present invention facilitates replacement of the desiccant bag since the desiccant bag can be easily taken out from the receiver dryer through the connecting member.

1 is a cross-sectional view showing a receiver dryer integrated condenser according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view illustrating the receiver drier of FIG. 1.
3 and 4 are partial cross-sectional perspective and cross-sectional views showing the flow of the filter cap and the refrigerant of FIG.
5 is an exploded perspective view of the filter cap of FIG. 3.
6 is a cross-sectional view of the filter cap of FIG. 3.
7 is an exploded perspective view showing another embodiment of the filter of FIG. 3.
FIG. 8 is a cross-sectional view illustrating a flow of a refrigerant along the filter cap of FIG. 7.
9 is an enlarged view of a portion 'A' of FIG. 6.
10 is a front view illustrating the connection member of FIG. 4.
FIG. 11 is a cross-sectional view taken along the line?-? Of FIG.
12 is a front sectional view showing another embodiment of the coupling part of FIG. 11.
FIG. 13 is a front sectional view showing a partition wall provided in the engaging portion of FIG. 11. FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, referring to FIG. 1, the receiver dryer for an automobile air conditioner according to the present embodiment is coupled to the condenser 10 to store a refrigerant, and to remove moisture and foreign substances contained in the refrigerant. On the other hand, the receiver dryer 20 according to the present embodiment is shown by taking an example of a form integrally coupled to the condenser 10, but is not limited to this, it is applied for the automotive air conditioner.

First, referring to the condenser 10, the condenser 10, the first header pipe 13 and the second header pipe 14 are installed spaced apart from each other in parallel with each other, the first header pipe 13 and the first Both ends are inserted into the two header pipes 14 and include a plurality of tubes 11 arranged in parallel with each other, and a plurality of heat dissipation fins 12 interposed between the tubes 11. Here, the inlet 1 through which the coolant flows in and the outlet 2 through which the coolant flows out are formed in the upper and lower portions of the second header pipe 14, respectively, and the first header pipe 13 includes the receiver. It is in communication with the dryer 20. In addition, upper and lower ends of the first header pipe 13 and the second header pipe 14 are sealed by cap members 13a and 14a.

2 to 4, the receiver dryer according to the present embodiment will be described. Referring to FIG. 2, the receiver dryer for an automobile air conditioner according to the present embodiment includes a main body 100, a cap 200, a filter 300, a connecting member 400, and a desiccant bag 30.

The main body 100 has a tubular shape, the desiccant bag 30 is inserted therein and communicates with a condensation region of the first header pipe 13 of the condenser on the outer circumferential side thereof so that the refrigerant flows from the condenser. The refrigerant outlet 120, which is located below the refrigerant inlet 110 and communicates with a subcool zone of the condenser, flows out the liquid refrigerant to the sub cooling zone. Formed. In addition, the main body 100 has an opening formed in a structure in which the lower part is open to the outside, and the upper part has a closed structure. Here, the upper portion of the main body 100 may be manufactured to be sealed or opened to be closed, and a separate sealing member may be inserted into close contact to have a sealed structure.

3 and 4, the main body 100 is positioned between the baffle 320 and the coolant inlet 110, which will be described later, to allow the introduced coolant to gather and stabilize ( and a protrusion guide 132 defining a storage place; The protrusion guide 132 is formed to protrude adjacent to the outer circumferential surface of the coupling portion 330 so that the refrigerant in the gas phase of the refrigerant introduced from the refrigerant inlet 110 does not flow into the storage space 140.

In addition, the main body 100 has a stopper 134 protruding from the upper peripheral portion of the baffle 320 to the inner circumferential surface to limit the insertion of the filter 300 into the inner side of the main body 100. have.

The desiccant bag 30 is inserted into the main body 100, and the desiccant bag 30 is embedded in the body formed of the same material as the nonwoven fabric, and is coupled to the connection member 400 through fusion or the like. It is not limited to this. On the other hand, the refrigerant flow of the receiver dryer of the present embodiment according to the above structure will be described later in the refrigerant flow description according to another embodiment of the coupling unit of FIG.

5 and 6, the cap 200 is made of a cylindrical cam body, fitted in the opening of the main body 100 to make the main body 100 in a sealed structure, the main body 100 Cap body 230 is fitted to the opening of the, and the guide member 500 is formed to protrude integrally on the top of the cap body 230.

The outer circumferential surface of the cap body 230 is provided with a plurality of O-ring seats to which a plurality of O-rings may be fitted to maintain the airtightness between the cap 200 and the main body 100.

The cap 200 is formed integrally surrounding the outer circumferential surface of the cap body 230, one or a plurality of O-ring seating portion (210, 220) is arranged spaced apart from each other in the vertical direction and seated a plurality of O-rings (211,212) Further includes (see FIG. 5). The plurality of O-ring seating parts 210 and 220 may be spaced apart from the first O-ring seating part 210 to which the first O-ring seating part 211 is fitted and the first O-ring seating part 210 and spaced apart from each other. ) Includes a second O-ring seating portion 220 is fitted.

On the other hand, the first and second O-ring seating portion (210,220) is formed so that the compression force of the first and second O-ring seating (210,220) respectively fitted to the first and second O-ring seating portion (210,220) are different from each other. . When the first and second O-rings 211 and 212 are compressed beyond the permanent deformation limit and inserted into the first and second O-ring seating portions 210 and 220, the airtightness is good in the initial stage, but leakage occurs after time passes. On the contrary, if the compression amount of the first and second o-rings 211 and 212 is reduced, the leakage may be caused in the initial stage. Therefore, in view of this, the first and second o-rings 211 and 212 may be combined. In order to effectively block leakage of the first and second O-rings 211 and 212 for a long time by either reducing the amount of compression and increasing the amount of compression. In addition, the first and second O-rings 211 and 212 have the same structure, that is, the same compressive force, so that the first and second O-rings 211 and 212 are respectively the first and second O-ring seating portions 210 and 220. The circumferential lengths t of the first O-ring seating portion and the second O-ring seating portion 220 may be different so as to have different compressive forces in the fitted state. This is as shown in FIG.

The coupling structure between the cap 200 and the opening of the main body 100 is a structure in which an outer circumferential surface of the cap 200 is press-fitted into the opening of the main body 100 or an opening of the main body 100. Various coupling structures, such as a structure in which the cap 200 is detachably coupled to a snap type or a threaded portion through a protrusion and a fitting groove, or a structure in which a screw is securely fastened, may be applied.

The lower end of the cap body 230 is formed in a flat state. However, in some cases, the lower end portion of the cap body 230 may be provided with various embodiments, such as having a weight loss portion (not shown) in terms of material saving.

The guide member 500 serves to stabilize the flow of the refrigerant in the filter 300 and to smoothly flow out to the refrigerant outlet 120. That is, the guide member 500 serves to induce the refrigerant flowing in from the refrigerant inlet 110 and smoothly flowed out from the through hole 312 to the refrigerant outlet 120. Induces the rotational movement of the refrigerant flow to stabilize the refrigerant flow and reduce the space inside the filter body 310 to reduce the time to reach the refrigerant outlet 120, the refrigerant flows quickly the refrigerant outlet It serves to flow to 120. On the other hand, the guide member 500 is formed in a cone shape that is pointed toward the top. However, this is possible in one embodiment if the longitudinal cross-sectional shape is a shape that can achieve the above object, such as an oval rather than a triangle. The guide member 500 has an upper end lower than the through hole 312, for example, 3 mm lower.

 The filter 300 is fitted to the upper portion of the cap 200, and includes a filter body 310, a baffle 320, and the coupling portion 330.

The filter body 310 is a cylindrical shape having a hollow interior, the lower portion is open, the upper end of the cap 200 is inserted into the lower end, and the refrigerant introduced from the through hole 312 in the outer peripheral side A plurality of discharge holes 311 is discharged is formed, the outer peripheral side is provided with a filter network 340 for filtering the refrigerant flowing out of the discharge hole (311).

The baffle 320 is integrally formed at an upper portion of the filter body 310 and a through hole 312 is formed at a central portion thereof. The baffle 320 is located between the coolant inlet 110 and the coolant outlet 120, and an outer circumferential surface of the baffle 320 faces the inner circumferential side of the main body 100 so that the coolant flows from the coolant inlet 110. It is possible to prevent the refrigerant in the gaseous phase to descend to the lower, thereby providing a time to stabilize the liquid refrigerant in the storage space 140. In addition, the baffle 320 serves to support the upper outer circumferential surface of the filter 300 so as not to be shaken inside the main body 100.

The coupling part 330 extends in the tubular shape and extends in the direction of the desiccant bag 30 along the through hole 312 of the baffle 320, from the first inlet hole 332 formed at the upper part thereof. The refrigerant flows into the through hole 312 and serves as a passage through which the refrigerant flows out. The coupling part 330 determines the flow direction of the refrigerant flowing into the first inlet hole 332. In this embodiment, the coupling part 330 is introduced from the first inlet hole 332. It is erected with respect to the vertical direction in which the flow of the coolant becomes smoother.

FIG. 7 is an exploded perspective view showing another embodiment of the filter of FIG. 3. Referring to the drawings, the filter 300b includes the coupling part 330, together with the first inlet hole 332, on a lower outer peripheral surface thereof. A plurality of second inflow holes 334 are formed through. The second inlet hole 334 allows a liquid refrigerant flowing in a downward direction among the refrigerant flowing from the refrigerant inlet 110 to flow in and flows out into the through hole 312.

Referring to FIG. 8 with respect to the flow of the coolant in the present embodiment according to the above structure, the coolant is introduced from the coolant inlet 110, a part of the liquid coolant through the drying bag (30) is The liquid flows into the first inflow hole 332 and flows out into the through hole 312, and the liquid refrigerant flows into the storage space 140 and then flows into the second inflow hole 334 to flow through the through hole 312. Out 312. Then, the refrigerant flowing out of the through hole 312 flows out through the filter network 340 of the filter body 310 to the refrigerant outlet 120. That is, the coupling part 330, the first inlet hole 332 is formed in the upper portion of the refrigerant flowing from the refrigerant inlet 110 to move in the upper direction and then the liquid refrigerant passing through the drying bag (30) To the second inlet hole 334, which is relatively lower than the first inlet hole 332, and does not move in an upward direction of the refrigerant introduced from the refrigerant inlet port 110 in a downward direction. Allow the liquid in the sitting liquid to flow in. Therefore, the receiver dryer for an automobile air conditioner according to the present embodiment has a structure in which the liquid refrigerant is introduced by the filter in which the first inlet hole 332 and the second inlet hole 334 are formed. The liquid refrigerant and the gaseous refrigerant can be easily separated, and the guide member is provided to smooth the flow of the coolant in the filter to improve the flow to the coolant outlet, thereby improving the lifetime and performance of the receiver drier.

Further, the second inflow hole 334 is formed at a position corresponding to where the storage space 140 is located so that the liquid refrigerant in the storage space 140 can be easily introduced. At this time, the coupling part 330 is positioned so that the first inlet hole 332 and the through hole 312 is aligned with respect to the vertical direction to facilitate the inflow of the refrigerant.

The coupling part 330 has a plurality of locking parts 336 to which the elastic protrusion 410 of the connection member 400, which will be described later in the radial direction, is fitted to the inner circumferential surface thereof. The locking portion 336 is formed to correspond to the position and the number of the elastic protrusion 410, the locking hole is formed in the inner circumferential surface of the coupling portion 330 as in this embodiment, the elastic protrusion 410 is caught It can be inserted into a hole, or the engaging portion 336 in the form of a groove, the elastic protrusion 410 can be structured to be fitted and coupled, such as coupled to the elastic protrusion 410 can be fixed in position Any combination structure can be used.

Referring to FIG. 9, the cap 200b has an insertion groove 250 formed along an outer circumferential surface of the upper end. The filter body 310 includes a protrusion 350 along an inner surface of the lower end portion that is extrapolated to the upper end of the cap 200. Accordingly, the cap 200 and the filter body 310 by the insertion groove 250 and the protrusion 350 to the axial (up-down direction) binding force of the cap 200 and the filter 300. Can be improved.

Referring to FIG. 10, the connection member 400 is positioned between the desiccant bag 30 and the filter 300, one end of which is coupled to a lower portion of the desiccant bag 30, and the other end of the filter 300. Removably coupled to the coupling portion 330 of the (300), connecting the desiccant bag 30 and the filter 300 to each other, the cap 200 is separated when separating the cap 200 and Together with the filter 300, the desiccant bag 30 serves to be taken out into the opening. In detail, the connection member 400 has one end coupled with the drying bag 30 and the other end coupled with the plurality of elastic protrusions 410 coupled radially to each other through the coupling part 330. Removably combined with. The elastic protrusions 410 are elastically fitted to the engaging portion 336 formed on the inner circumferential surface of the coupling portion 330, and are easily retracted when they are inserted into the coupling portion 330. When it is located in the locking portion 336 is opened and fitted to the locking portion 336.

FIG. 11 is a cross-sectional view of a portion in which the engaging portion 336 is positioned in the coupling portion 330. Referring to the drawings, the coupling portion 330 is easy to manufacture and has a smooth flow of refrigerant. It is a tube. On the other hand, referring to Figure 12, the coupling portion 330b is formed in the elliptical shape so that the elastic protrusion 410 is inserted into the inner peripheral surface of the coupling portion 330b is inserted into the coupling member 400. . This is a structure in which the elastic protrusion 410 of the connecting member 400 can be elastically opened and opened elastically. In this embodiment, the connecting member 400 is easily inserted in the II direction having a large diameter. When the elastic projection 410 is rotated in the I direction and positioned in the place where the locking portion 336 is located, the elastic protrusion 410 naturally opens and is fitted to the locking portion 336.

Referring to FIG. 13, the coupling part 330 has a hollow tubular shape, and prevents vortex of the refrigerant introduced from the first inlet hole 332 on an inner circumferential surface thereof, and the introduced refrigerant is a steady flow. Compartment 600 is provided to flow to. The partition bars have a cross shape in this embodiment, but any structure can be used as long as the vortices can be prevented without adversely affecting the flow of the refrigerant.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

20 ... Receiver Drier 100 ... Main Unit
140 ... Storage 200 ... Cap
300,300b ... Filter 310 ... Filter Body
320 ... baffle 330 ... mating
332 ... first inlet hole 334 ... second inlet hole
400 ... connecting member 500 ... guide member

Claims (19)

In the receiver dryer for an automobile air conditioner,
A desiccant bag is inserted therein, and a coolant inlet through which a coolant flows from a condenser is formed on an outer circumferential side thereof, and a coolant outlet through which a liquid coolant flows out into a sub-cooling zone, and an opening formed in a lower portion thereof;
A cap including a cap body inserted into the opening of the main body, and a guide member integrally formed at the upper portion of the cap body to guide the coolant flowing out from the coolant inlet to the coolant outlet; And
Receiver dryer for an automobile air conditioner comprising a filter extrapolated to the cap. The method according to claim 1,
The guide member is a receiver dryer for a car air conditioner of the cone shape. The method according to claim 1,
The filter includes:
A filter body extrapolated to the cap,
A baffle formed integrally with the filter body and formed with a through hole;
The lower part extends in the direction of the desiccant bag along the through-hole of the baffle, and the refrigerant flows from the first inlet hole formed in the upper part to flow out the refrigerant into the through-hole and combine with the desiccant bag. Receiver drier for equipment. The method according to any one of claims 1 to 3,
The filter body,
In the cylindrical shape with a hollow interior,
The lower part is opened and the upper end part of the cap is inserted into the lower end part,
The outer peripheral side is formed with a plurality of discharge holes through which the refrigerant introduced from the through hole is discharged,
The outer circumferential side of the vehicle air conditioner receiver dryer is provided with a filter network for filtering the refrigerant flowing out of the discharge hole. The method according to any one of claims 1 to 3,
The baffle,
And a coolant outlet between the coolant inlet and the coolant outlet, the outer circumferential surface of which faces the inner circumferential side of the main body. The method according to claim 3,
The coupling portion
A receiver drier for a vehicle air conditioner, wherein a plurality of second inlet holes penetrate an outer circumferential surface thereof to allow a liquid refrigerant to flow out into the through hole. The method of claim 6,
The main body includes:
Located between the baffle and the coolant inlet, a storage place (damping space) to allow the coolant flowing from the coolant inlet flows through the coupling portion to be stabilized and flow out to the second inlet holes A receiver drier for an automobile air conditioner having a protruding guide. The method of claim 7,
The second inlet hole is a receiver dryer for a vehicle air conditioner is formed corresponding to the location where the storage space is located. The method of claim 7,
The protrusion guide,
And a receiver dryer for an automobile air conditioner protruded adjacent to an outer circumferential surface of the coupling part to prevent the refrigerant in the gaseous phase from being introduced from the refrigerant inlet. The method of claim 6,
The main body includes:
A receiver drier for an automotive air conditioner, wherein a stopper protrudes from an inner circumferential surface so that the upper circumferential surface of the upper end of the baffle is restricted so that the filter restricts insertion into the inside of the main body. The method of claim 7,
The main body includes:
A receiver drier for an automotive air conditioner, wherein a stopper protrudes from an inner circumferential surface so that the upper circumferential surface of the upper end of the baffle is restricted so that the filter restricts insertion into the inside of the main body. The method of claim 6,
The coupling portion
A receiver dryer for an automotive air conditioner having a hollow tubular shape, the partitioning portion which partitions the first inflow hole on an inner circumferential surface and prevents vortex of the refrigerant flowing from the first inflow hole. The method of claim 6,
The coupling unit is located upright with respect to the vertical direction in the tubular shape, the receiver air dryer for a vehicle air conditioner to flow the refrigerant flowing from the first inlet hole in the vertical direction. The method according to claim 13,
And the first inflow hole and the through hole are aligned with respect to the vertical direction. The method according to any one of claims 1 to 3,
The cap
A receiver dryer for an automobile air conditioner, which is integrally formed while surrounding the outer circumferential surface of the cap body, and further includes one or a plurality of O-ring seats disposed to be spaced apart from each other in a vertical direction and seated with a plurality of O-rings. The method according to any one of claims 1 to 3,
A connection member positioned between the desiccant bag and the filter, the one end of which is connected to the desiccant bag and the other end of which is connected to the filter so that the desiccant bag is taken out into the opening together with the cap and the filter separated when the cap is separated More,
The connecting member includes a plurality of elastic protrusions, one end of which is fixedly coupled to the desiccant bag and the other end of which is coupled radially to each other.
And a plurality of locking portions to which the elastic protrusions are fitted are formed on the inner circumferential surface of the coupling portion of the filter. 18. The method of claim 16,
The coupling portion
Receiver drier for automobile air conditioner whose inner circumference has a circular or oval shape. The method according to claim 14,
The cap has a second O-ring seating portion 220, one side of which is opened around the upper end portion, and a second O-ring 212 support portion at the lower end of the filter body 310 to prevent the second O-ring 212 from being separated. A receiver drier for an automotive air conditioner comprising 313. The method according to claim 15,
The plurality of O-ring seating unit is a receiver dryer for a vehicle air conditioner having a different circumferential length.

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