KR20110088694A - Condenser having integrated receiver drier - Google Patents

Abstract

PURPOSE: A condenser having an integrated liquid receiver is provided to enable a user to easily replace a filter integrated cap formed in the bottom end of the liquid receiver. CONSTITUTION: A condenser(10) having an integrated liquid receiver comprises first and second header tanks(20-1,20-2), multiple tubes(11), a refrigerant inlet(21), a refrigerant outlet(22), and a liquid receiver(30). Multiple baffles are arranged inside the first and second header tanks. Both ends of the tubes are connected to the first and second header tanks. The refrigerant inlet and outlet are installed in one side of the first header tank. The liquid receiver is integrally coupled to the second header tank.

Description

Condenser having integrated receiver drier

The present invention relates to a receiver integrated condenser, and more particularly to a receiver integrated condenser that is easy to replace the filter integral cap.

In general, the cooling system of the vehicle air conditioning system has a refrigerant of the compressor, the gas phase for compressing a refrigerant (hereinafter referred to as "gas refrigerant" referred to) the condenser, the compressed vapor to condense back to the liquid state refrigerant (hereinafter referred to as "liquid refrigerant") It consists of an expansion valve that reduces the pressure of the refrigerant and expands it to lower its temperature, and an evaporator that absorbs heat from the surroundings.

That is, the compressor compresses the refrigerant that performs heat exchange with the outside air into a gaseous state of high temperature and high pressure which is easy to liquefy, and transfers it to the condenser. It liquefies by exchanging heat with air that is blown by the cooling fan or air that is stopped.

In this way, the gaseous refrigerant is changed into a liquid refrigerant while passing through the condenser and introduced into the expansion valve.

Thereafter, the refrigerant phase-changed into a liquid state is changed into a wet, low-pressure vapor state of low temperature and low pressure by the throttling action of the expansion valve and flows into the evaporator.

The refrigerant introduced into the evaporator absorbs the latent heat of evaporation necessary for evaporation from the surrounding air, evaporates itself, changes into a gaseous state, and then repeatedly enters the compressor.

As described above, the condenser is a high-temperature, high-pressure gaseous refrigerant flows into the liquid state while releasing the liquefied heat by heat exchange, and discharges it to the expansion valve, which provides an auxiliary cooling means between the condenser and the expansion valve. Thus, the cooling performance of the air conditioner is greatly improved by promoting the supercooling of the refrigerant flowing into the condenser.

The receiver stores an appropriate amount of refrigerant to change the refrigerant circulation amount according to the load change of the refrigeration cycle, and separates the bubbles contained in the liquid refrigerant flowing from the condenser and expand only the liquid refrigerant in order to prevent the cooling performance is lowered It acts as a valve.

In addition, the receiver generally includes a cylindrical body made of steel or aluminum that provides a storage space for the refrigerant, and a liquid refrigerant in the body in which the refrigerant inlet and the air bubble are separated from the condenser to guide the refrigerant from the condenser into the main body. It consists of a refrigerant outlet which leads to.

The receiver is provided with a desiccant and a filter for removing moisture and foreign matter in the refrigerant to improve cooling performance.

As shown in FIG. 1, the structures of the conventional condenser 180 and the receiver 170 are formed in a pair of the header tank 110 and the header tank 110 which are formed side by side at a predetermined distance, and thus have a refrigerant. A plurality of tubes provided between the refrigerant inlet 120 to allow the inlet and the refrigerant outlet 130 to flow out, the header tank 110, the baffle 190 to control the flow of the refrigerant, and the header tank 110. 150 is provided on one side of the header tank 110, and comprises a receiver 170 for separating the gaseous refrigerant and the liquid refrigerant, the refrigerant is separated by sending the gaseous refrigerant to the top, the liquid refrigerant to the bottom In the receiver 170, only the liquid refrigerant is collected to induce supercooling.

The receiver 170 is provided on one side of the header tank 110, and the structure is a drying agent 140 for removing the gaseous refrigerant in the tank is closed and the top is open, the bottom is passed through the desiccant 140 The lower part of the tank is sealed by using a cap 160 provided with a filter at the top to remove impurities mixed in the refrigerant.

In order to replace the cap 160 provided with the desiccant 140 or the filter, it is difficult to replace the cap 160 directly without being separated from the vehicle body due to interference with other parts of the vehicle body. Work space should be separated from the cooling module. After separation, the cap 140 provided in the lower part processed by a thread is separated from the receiver 170 and replaced.

In order to replace the cap 160, the receiver 170 and the condenser 170 connected to the receiver 170 must be separated from the vehicle body through a work process, which is complicated to repair and assemble. There is also a problem that increases the cost.

The present invention has been made to solve the above problems, it is an object of the present invention to provide a receiver integrated condenser that can be replaced more easily the filter-integrated cap inserted in the lower end of the receiver.

The receiver integrated condenser according to the present invention comprises: a plurality of baffles disposed therein, the first and second header tanks installed to face each other; A plurality of tubes each having both ends connected to the first and second header tanks and having heat dissipation fins interposed therebetween, and having a core part having a multi-stage refrigerant flow path formed by a baffle of the first and second header tanks; A refrigerant inlet port and a refrigerant outlet port installed at one side of the first header tank; A condenser region integrally coupled to communicate with the second header tank, wherein the core portion cools the refrigerant in the gaseous phase introduced at a high temperature and high pressure through the refrigerant inlet to remove superheat and condensation And a receiver integrated condenser that is positioned below the condensation region and sequentially partitioned into sub-cooling regions for allowing the liquid refrigerant to be supercooled, wherein the upper end is opened by being attached to one side of the second header tank. 2, a coolant inlet through which a coolant flows from a header tank is formed, and a coolant outlet through which a coolant is discharged into the header tank is formed at a lower side thereof, and a coolant flowing through the coolant inlet at an open upper portion of the receiver is filtered. The technical feature is that the integrated filter cap is provided with a filter unit.

The filter portion of the filter integrated cap is preferably smaller in cross-sectional area toward the lower side in the tank longitudinal direction.

The filter unit of the filter integrated cap is preferably provided in a conical shape at the bottom of the body.

The filter portion of the filter integrated cap is preferably smaller in cross-sectional area toward the refrigerant inlet side in the tank longitudinal direction.

The filter unit of the filter integrated cap is preferably provided in a conical shape inside the body.

According to the present invention, in order to have a filter-integrated cap formed at the lower end of the receiver, the refrigerant flow path in the condenser flows from the lower part to the upper part so that the condenser can be easily replaced without removing the condenser from the vehicle body. can do.

In addition, the work process can be reduced, thereby reducing costs and improving functionality and usability.

1 is a cross-sectional view of a receiver integrated condenser applying a lower cap according to the prior art,
2 is a perspective view of a receiver integrated condenser according to a preferred embodiment of the present invention,
3 is a cross-sectional view of the receiver integrated condenser according to a preferred embodiment of the present invention,
4 is a cross-sectional view of a receiver according to a preferred embodiment of the present invention,
5 is a perspective view and a cross-sectional view of the filter-integrated cap of the receiver according to a preferred embodiment of the present invention,
6 is a perspective view and a cross-sectional view of another form in the filter-integrated cap of the receiver according to a preferred embodiment of the present invention.

Hereinafter, the configuration and operation of the present invention through the preferred embodiment of the present invention in more detail.

As shown in Figures 2 to 3, the vehicle condenser includes a plurality of baffles are disposed therein, respectively, the first and second header tanks installed to face each other; A plurality of tubes each having both ends connected to the first and second header tanks and having heat dissipation fins interposed therebetween, and having a core part having a multi-stage refrigerant flow path formed by a baffle of the first and second header tanks; A coolant inlet port and a coolant outlet port installed at one side of the first header tank; A condenser is integrally coupled to communicate with the second header tank, wherein the core part cools the refrigerant in a gaseous phase introduced at a high temperature and high pressure through the refrigerant inlet to remove superheat and condensation. And a sub-cooling region located below the condensation region to subcool the liquid refrigerant.

The coolant inlet 21 and the coolant outlet 22 have a predetermined length, and are respectively inserted into the second header tank 20-2 in the longitudinal direction.

As shown in FIG. 4, the receiver 30 is connected to one side of the second header tank 20-2 and stores the refrigerant coming from the condenser 10 in the receiver 30 to always be in a liquid state. It serves to send the refrigerant to the expansion valve (not shown), the refrigerant circulation is changed according to the change of the cycle conditions.

In response to such a change in the refrigerant circulation amount, the cooling cycle stores the necessary amount of refrigerant to operate smoothly.

The function of the receiver 30 stores the liquid refrigerant to be sent to the evaporator according to the heat load, and because the bubble liquefied in the refrigerant liquefied in the condenser 10 contains a gaseous refrigerant to completely separate the bubble refrigerant liquid Only refrigerant is sent to the expansion valve.

In addition, when moisture is contained in the refrigerant, the functional parts may be corroded or frozen in the expansion valve to stop the circulation of the refrigerant.

In order to prevent this, the desiccant 50 and the filter-integrated cap 40 are provided inside to filter out some moisture or other foreign substances contained in the refrigerant.

The receiver 30 is attached to one side of the second header tank (20-2), the lower portion is sealed and the upper end is opened, the refrigerant inlet through which the refrigerant flows from the second header tank (20-2) on the upper side ( 21 is formed and a coolant outlet 22 through which coolant is discharged to the header tank 20-2 is formed on the lower side.

An open upper portion of the receiver 30 is provided with a filter-integrated cap 40 having a filter portion 41 which is a filtration means for removing foreign matter contained in the refrigerant flowing through the refrigerant inlet 21. It is sealed.

The filter portion 41 of the filter integrated cap 40 has a conical shape in which the cross-sectional area becomes smaller toward the lower side in the tank longitudinal direction, or is provided in the lower portion of the body of the filter integrated cap 40, or the cone whose cross-sectional area becomes smaller toward the refrigerant inlet side. It is provided in the body of the filter integrated cap 40 in the shape.

In addition, the filter part 41 is preferably formed to maximize the area where foreign matters accumulate.

The receiver 30 has a cylindrical shape made of steel or aluminum, and a refrigerant storage space is provided therein.

In addition, the receiver 30 is preferably used to reduce the weight of the aluminum material, and to maximize the storage space of the refrigerant, it is preferable to use a cylindrical one.

The coolant inlet 21 is preferably formed in a portion of the inner surface of the receiver 30 in contact with the cap 40 provided with the filter portion 41.

In the present embodiment, the coolant inlet 21 is formed at a position corresponding to the upper side surface of the filter integrated cap 40.

As shown in FIG. 5A, the filter integrated cap 40 includes a body 42 opened to allow the lower filter part 41 and a refrigerant to flow therein, and an inner portion of the lower portion of the receiver 30 opened. It is composed of a coupling portion 43 screwed to the side.

The filter portion 41 has a conical shape so that foreign matters can be accumulated, and is made of a mesh that is tightly woven so that foreign matters do not escape.

As shown in FIG. 5B, foreign matter accumulates in the lower part of the filter part due to a conical shape in which the filter part 41 becomes smaller in the longitudinal direction of the receiver rather than in a plane, and the refrigerant becomes a free space in the upper part of the filter part. Can flow.

The side of the body 42 has a plurality of through-holes are formed so that the refrigerant flows into the upper portion of the receiver 30 from the second header tank 20-2, the upper surface of the body 42 The refrigerant introduced into the hollow inside of the cylindrical hollow is opened so that the refrigerant flows downward toward the refrigerant outlet 22.

In addition, the outer surface of the body 42 is larger than the diameter of the inner surface of the receiver 30 so that the filter unitary cap 40 as a whole apart from the inner surface of the receiver 30 by a predetermined distance. By providing small, the refrigerant can easily flow out toward the refrigerant outlet 22.

The coupling portion 43 is formed on the outer surface of the screw thread is screwed with the inner surface of the receiver 30, and at least one portion of the outer surface is formed with at least one 0-ring seating portion 0-ring ( 44) is configured to be seated.

Another preferred embodiment of the filter integrated cap according to the invention as described above is shown in FIG. 6.

In contrast to the filter portion of FIG. 5, a conical filter portion 41 having a smaller cross-sectional area toward the refrigerant inlet is inserted into the body, whereby foreign matter is accumulated in the lower portion and the refrigerant flows into the free space at the upper portion thereof.

 The flow of the coolant varies depending on the mounting position of the filter part 41. However, the conventional structure in which the filter-integrated cap 40 seals the lower end thereof, as shown in FIG. 1 through the upper portion of the header tank 20-1 to the upper portion of the condenser 10, a plurality of tubes 11 arranged in parallel to the second header tank 20-2, the gaseous refrigerant is the upper, liquid refrigerant Will flow down.

The liquid refrigerant descending to the lower portion is introduced into the receiver 30 through the refrigerant inlet 21 formed at the bottom of the receiver 30 through the lower portion of the header tank 20 on the other side, and passes through the lower end of the receiver 30. Discharged to the cool area.

In addition, the gaseous phase refrigerant rising to the upper flows into the receiver 30 through the refrigerant inlet 21 formed in the upper part of the receiver 30 via the upper part of the second header tank 20-2 on the other side, and receives the receiver 30. Is discharged through the lower end of the subcooling area.

On the contrary, in the present invention, as shown in FIG. 3, in the structure in which the cap 40 seals the upper end, the refrigerant introduced into the first header tank 20-1 formed on one side cools and condenses the refrigerant. It moves from the lower part to the upper part along the refrigerant path of the condensation area and flows into the second header tank 20-2 formed on the other side, and passes through the receiver 30 through the refrigerant inlet 21 provided on the upper side. The coolant outlet 22 provided on the side is positioned at the lower portion of the condensation region and discharged to the sub-cooling region for supercooling the liquid refrigerant.

Only when the refrigerant flow in the condenser 10 flows from the bottom to the top, the filter integrated cap 40 is provided at the upper end, and thus may function as a filter unit 41.

10 condenser 11 tube
12: heat dissipation fin 20-1: first header tank
20-2: second header tank 21: refrigerant inlet
22: refrigerant outlet 23: baffle
30: receiver 40: filter integral cap
41 filter unit 42 body
43: coupling part 44: 0-ring
50: desiccant

Claims (5)

A plurality of baffles 23 disposed therein, the first and second header tanks 20-1 and 20-2 disposed to face each other; Both ends are connected to the first and second header tanks 20-1 and 20-2, respectively, and heat dissipation fins 12 are interposed therebetween, and the first and second header tanks 20-1 and 20-2 are provided. A plurality of tubes 11 forming a core part having a multi-stage refrigerant flow path by means of a baffle 23; A refrigerant inlet port 21 and a refrigerant outlet port 22 installed at one side of the first header tank 20-1; And a receiver 30 integrally coupled to communicate with the second header tank 20-2, wherein the core part cools the refrigerant in the gas phase introduced in a state of high temperature and high pressure through the refrigerant inlet 21 to overheat. In the condenser integrated condenser is divided into a condensation zone to be removed and the condensation process in parallel, and a sub-cooling zone located in the lower portion of the condensation zone to allow the liquid refrigerant to be supercooled,
It is attached to one side of the second header tank (20-2), the upper end is opened, and a refrigerant inlet (21) through which the refrigerant flows from the second header tank (20-2) is formed on the upper side and the header at the lower side A receiver 30 having a coolant outlet 22 through which the coolant is discharged to the tank 20-2;
Receiving device, characterized in that the filter integral cap 40 is formed in the open upper portion of the receiver 30 is provided with a filter unit 41 for filtering the refrigerant flowing through the refrigerant inlet 21 Integral condenser.
The method according to claim 1,
The filter unit 41 of the filter integrated cap has a cross-sectional area that is smaller toward the lower side in the longitudinal direction of the tank.
The method according to claim 2,
The filter unit 41 of the filter integrated cap 40 has a conical condenser, characterized in that the lower body 42 is provided in a conical shape.
The method according to claim 1,
The filter unit 41 of the filter integrated cap has a cross-sectional area that is smaller toward the refrigerant inlet side in the tank longitudinal direction.
The method according to claim 4,
The filter unit 41 of the filter integrated cap 40 is a condenser integrated liquid receiver, characterized in that the body 42 is provided in a conical shape.

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