JP5717475B2 - Capacitor - Google Patents

Description

  The present invention relates to a capacitor suitably used for, for example, a car air conditioner that is a refrigeration cycle mounted on an automobile.

  In this specification and claims, the term “capacitor” includes a subcool condenser having a condenser section and a supercooling section in addition to a normal condenser.

  Further, in this specification and claims, the upper and lower sides and the left and right sides refer to the upper and lower sides and the left and right sides of FIGS.

  For example, as a condenser of a car air conditioner, a plurality of flat heat exchange pipes extending in the left-right direction and arranged in parallel with a gap in the up-down direction and the left and right end portions of the heat exchange pipe are directed in the ventilation direction in the width direction. The header tank that extends in the up and down direction, and is provided with three heat exchange paths each consisting of a plurality of heat exchange tubes that are continuously arranged in the vertical direction, all the heat constituting each heat exchange path A condenser in which the refrigerant flow direction of the exchange pipe is the same, and the refrigerant flow direction of the heat exchange pipes of two adjacent heat exchange paths is different. A first header tank to which the heat exchange pipe constituting the path is connected, and a second header tank to which the heat exchange pipe constituting the heat exchange path excluding the heat exchange path at the lower end is connected separately, 2 header data Is disposed on the first header tank, the thickness of the first header tank is much larger than the thickness of the second header tank, and the desiccant is disposed in the first header tank, whereby the first The header tank has a function as a liquid receiver that separates gas and liquid using gravity and accumulates the liquid, and is connected to the first heat exchange pipe connected to the first header tank and the second header tank. The lengths of the second heat exchange tubes are equal, and the end of the first heat exchange tube on the first header tank side and the end of the second heat exchange tube on the second header tank side are on the same vertical line. There is a known capacitor in which all heat exchange paths are refrigerant condensation paths for condensing refrigerant (see Patent Document 1).

  In the capacitor described in Patent Document 1, in order to effectively perform gas-liquid separation in the first header tank, the inner volume of the first header tank needs to be considerably larger than that of the second header tank. The thickness of one header tank is considerably larger than the thickness of the second header tank, and there is a problem that a large space is required to arrange the capacitor.

  Usually, other devices are arranged near the capacitor. However, according to the capacitor described in Patent Document 1, the first header tank interferes with other devices. For example, a radiator is generally disposed on the downstream side in the ventilation direction of a condenser for a car air conditioner. However, according to the condenser described in Patent Document 1, the first header tank interferes with the installation of the radiator, and the engine Unnecessary space is generated in the room, and space cannot be saved. Moreover, since the heat exchange pipe is connected over almost the entire length of the first header tank, there is a problem that the gas-liquid separation performance is not sufficient.

Japanese Utility Model Publication 3-31266

  The object of the present invention is to solve the above-mentioned problems, reduce the installation space as compared with the capacitor described in Patent Document 1, and provide corrosion resistance of the first heat exchange pipe at the upper end located directly under the second header tank. It is an object of the present invention to provide a capacitor capable of improving the resistance.

  In order to achieve the above object, the present invention comprises the following aspects.

1) A plurality of heat exchange pipes extending in the left-right direction arranged in parallel in the vertical direction and a header tank extending in the vertical direction to which the left and right ends of the heat exchange pipe are connected are adjacent to each other in the vertical direction. A plurality of heat exchange paths, each having a plurality of heat exchange tubes arranged in a row in the vertical direction, provided with fins disposed between the heat exchange tubes and brazed to the heat exchange tubes. A capacitor,
A first header tank connected to a first heat exchange pipe constituting at least one heat exchange path positioned on the lower side on either one of the left and right ends, and a first heat exchange connected to the first header tank And a second header tank connected to a second heat exchange pipe constituting the remaining heat exchange path provided above the heat exchange path formed of the pipe, the first header tank being the second header tank The upper end of the first header tank is located above the lower end of the second header tank, and the first header tank has a function of separating gas and liquid and storing the liquid. In addition, the portion on the first header tank side in the first heat exchange pipe connected to the first header tank is more lateral than the end on the second header tank side in the second heat exchange pipe connected to the second header tank. Projection that protrudes outward Provided, the protruding portion of the first heat exchange tubes of the upper end, in the gap between the lower end of the second header tank are disposed corrosion member having a sacrificial corrosion function with respect to the first heat exchange tubes, corrosion member However, the capacitor | condenser which is formed by bending the board of 1 sheet, has the space part extended in the ventilation direction and having both ends opened .

  In the capacitor 1), a heat exchange pipe constituting one heat exchange path may be connected to each of the first header tank and the second header tank.

2) A plurality of heat exchange pipes extending in the left-right direction arranged in parallel in the vertical direction, and a header tank extending in the vertical direction to which the left and right ends of the heat exchange pipe are connected are adjacent to each other in the vertical direction. There are fins disposed between the heat exchange tubes and brazed to the heat exchange tubes, and there are provided three or more heat exchange paths that are arranged in a row in the vertical direction. A capacitor,
A first header tank to which a first heat exchange pipe constituting at least two heat exchange paths including a heat exchange path at the lower end and continuously arranged is connected to either one of the left and right ends; and a first header tank And a second header tank to which a second heat exchange pipe constituting a heat exchange path provided above the heat exchange path formed by the first heat exchange pipe connected to the first heat exchange pipe is connected. However, the upper end of the first header tank is located above the lower end of the second header tank, and the first header tank separates gas and liquid. 2nd header tank side in the 2nd heat exchange pipe connected to the 2nd header tank in the part by the side of the 1st header tank in the 1st heat exchange pipe connected to the 1st header tank Left and right direction from the edge of The anticorrosion member which has the sacrificial corrosion function with respect to the 1st heat exchange pipe is provided in the crevice between the projection part of the 1st heat exchange pipe of the upper end, and the lower end of the 2nd header tank. The capacitor | condenser which is arrange | positioned , the anti-corrosion member is formed by bending one board, has a space part extended in the ventilation direction and having both ends opened .

  3) The heat exchange path at the upper end of the heat exchange path consisting of the first heat exchange pipe connected to the first header tank and the heat exchange path consisting of the second heat exchange pipe connected to the second header tank A refrigerant condensing path for condensing the refrigerant, wherein the heat exchanging path excluding the upper end heat exchanging path among the heat exchanging paths composed of the first heat exchanging pipes connected to the first header tank supercools the refrigerant. The capacitor as described in 2) above, which is a supercooling path.

  4) The first header exchange tank constituting at least two heat exchange paths is connected to the first header tank, and the second header exchange pipe constituting at least one heat exchange path is connected to the second header tank. Capacitor as described in 2) or 3).

5) A plurality of heat exchange pipes extending in the left-right direction arranged in parallel in the vertical direction and a header tank extending in the vertical direction to which the left and right ends of the heat exchange pipe are connected are adjacent to each other in the vertical direction. Two or more heat exchange paths, each of which includes a plurality of heat exchange tubes arranged in series up and down, are provided between the heat exchange tubes and fins brazed to the heat exchange tubes. A capacitor,
A first header tank to which a first heat exchange pipe constituting a lower end heat exchange path is connected to either one of the left and right ends, and a second heat constituting a heat exchange path excluding the lower end heat exchange path A second header tank to which the exchange pipe is connected, the first header tank is disposed on the outer side in the left-right direction than the second header tank, and the upper end of the first header tank is lower than the lower end of the second header tank. Is also located above, the first header tank has a function of separating gas and liquid and storing the liquid, and in the first header tank side portion of the first heat exchange pipe connected to the first header tank, The second heat exchange pipe connected to the second header tank is provided with a protrusion that protrudes outward in the left-right direction from the end on the second header tank side, and a protrusion of the first heat exchange pipe at the upper end, In the gap between the lower end of the header tank, There is disposed a corrosion member having a sacrificial corrosion function for exchange tubes, anticorrosion member being formed by bending a single plate, it extends and ends in the ventilation direction and has a space that is open capacitor .

6) A plurality of heat exchange pipes extending in the left-right direction arranged in parallel in the vertical direction, and a header tank extending in the vertical direction to which the left and right ends of the heat exchange pipe are connected are adjacent to each other in the vertical direction. Two or more heat exchange paths, each of which includes a plurality of heat exchange tubes arranged in series up and down, are provided between the heat exchange tubes and fins brazed to the heat exchange tubes. A capacitor,
A first header tank to which a first heat exchange pipe constituting an upper end heat exchange path is connected to one of the left and right ends, and a second heat constituting a heat exchange path excluding the upper end heat exchange path And a second header tank to which the exchange pipe is connected. The first header tank is disposed on the outer side in the left-right direction with respect to the second header tank, and the lower end of the first header tank is higher than the upper end of the second header tank. Is also located below, the first header tank has a function of separating gas and liquid and storing the liquid, and in the first header tank side portion of the first heat exchange pipe connected to the first header tank, The second heat exchange pipe connected to the second header tank is provided with a protrusion that protrudes outward in the left-right direction from the end on the second header tank side, and a protrusion of the first heat exchange pipe at the lower end, In the gap between the top of the header tank, the first There is disposed a corrosion member having a sacrificial corrosion function for exchange tubes, anticorrosion member being formed by bending a single plate, it extends and ends in the ventilation direction and has a space that is open capacitor .

  7) The capacitor according to 5) or 6) above, wherein all the heat exchange paths are refrigerant condensation paths for condensing the refrigerant.

8) A plurality of heat exchange pipes extending in the left-right direction arranged in parallel in the vertical direction, and a header tank extending in the vertical direction to which the left and right ends of the heat exchange pipe are connected are adjacent to each other in the vertical direction. A plurality of heat exchange paths, each having a plurality of heat exchange tubes arranged in a row in the vertical direction, provided with fins disposed between the heat exchange tubes and brazed to the heat exchange tubes. A capacitor,
A first header tank connected to a first heat exchange pipe constituting at least one heat exchange path positioned on the lower side on either one of the left and right ends, and a first heat exchange connected to the first header tank And a second header tank connected to a second heat exchange pipe constituting the remaining heat exchange path provided above the heat exchange path formed of the pipe, the first header tank being the second header tank The upper end of the first header tank is located above the lower end of the second header tank, and the first header tank has a function of separating gas and liquid and storing the liquid. In addition, the portion on the first header tank side in the first heat exchange pipe connected to the first header tank is more lateral than the end on the second header tank side in the second heat exchange pipe connected to the second header tank. Projection that protrudes outward Provided, the protruding portion of the first heat exchange tubes of the upper end, in the gap between the lower end of the second header tank are disposed corrosion member having a sacrificial corrosion function with respect to the first heat exchange tubes, corrosion member Is formed of a substantially V-shaped leaf spring composed of an arc-shaped portion and arms connected to both sides of the arc-shaped portion, and the anticorrosion member is elastically deformed so that both arms approach each other. The capacitor | condenser arrange | positioned in the clearance gap between the protrusion part of the 1st heat exchange pipe | tube, and the lower end of a 2nd header tank.

9) A plurality of heat exchange pipes extending in the left-right direction arranged in parallel in the vertical direction, and a header tank extending in the vertical direction to which the left and right ends of the heat exchange pipe are connected are adjacent to each other in the vertical direction. There are fins disposed between the heat exchange tubes and brazed to the heat exchange tubes, and there are provided three or more heat exchange paths that are arranged in a row in the vertical direction. A capacitor,
A first header tank to which a first heat exchange pipe constituting at least two heat exchange paths including a heat exchange path at the lower end and continuously arranged is connected to either one of the left and right ends; and a first header tank And a second header tank to which a second heat exchange pipe constituting a heat exchange path provided above the heat exchange path formed by the first heat exchange pipe connected to the first heat exchange pipe is connected. However, the upper end of the first header tank is located above the lower end of the second header tank, and the first header tank separates gas and liquid. 2nd header tank side in the 2nd heat exchange pipe connected to the 2nd header tank in the part by the side of the 1st header tank in the 1st heat exchange pipe connected to the 1st header tank Left and right direction from the edge of The anticorrosion member which has the sacrificial corrosion function with respect to the 1st heat exchange pipe is provided in the crevice between the projection part of the 1st heat exchange pipe of the upper end, and the lower end of the 2nd header tank. The anticorrosion member is composed of a substantially V-shaped leaf spring composed of an arc-shaped portion and arm portions connected to both sides of the arc-shaped portion, and the anticorrosion member is elastically deformed so that both arm portions approach each other. The capacitor | condenser arrange | positioned in the clearance gap between the protrusion part of the 1st heat exchange pipe | tube of an upper end, and the lower end of a 2nd header tank in the made state .

10) The heat exchange path at the upper end of the heat exchange path consisting of the first heat exchange pipe connected to the first header tank and the heat exchange path consisting of the second heat exchange pipe connected to the second header tank A refrigerant condensing path for condensing the refrigerant, wherein the heat exchanging path excluding the upper end heat exchanging path among the heat exchanging paths composed of the first heat exchanging pipes connected to the first header tank supercools the refrigerant. The capacitor according to 9) above, which is a supercooling path .

11) The first header exchange tank constituting at least two heat exchange paths is connected to the first header tank, and the second heat exchange pipe constituting at least one heat exchange path is connected to the second header tank. The capacitor as described in 9) or 10) .

12) A plurality of heat exchange pipes extending in the left-right direction arranged in parallel in the vertical direction and a header tank extending in the vertical direction to which both left and right ends of the heat exchange pipe are connected are adjacent to each other in the vertical direction. Two or more heat exchange paths, each of which includes a plurality of heat exchange tubes arranged in series up and down, are provided between the heat exchange tubes and fins brazed to the heat exchange tubes. A capacitor,
A first header tank to which a first heat exchange pipe constituting a lower end heat exchange path is connected to either one of the left and right ends, and a second heat constituting a heat exchange path excluding the lower end heat exchange path A second header tank to which the exchange pipe is connected, the first header tank is disposed on the outer side in the left-right direction than the second header tank, and the upper end of the first header tank is lower than the lower end of the second header tank. Is also located above, the first header tank has a function of separating gas and liquid and storing the liquid, and in the first header tank side portion of the first heat exchange pipe connected to the first header tank, The second heat exchange pipe connected to the second header tank is provided with a protrusion that protrudes outward in the left-right direction from the end on the second header tank side, and a protrusion of the first heat exchange pipe at the upper end, In the gap between the lower end of the header tank, An anticorrosion member having a sacrificial corrosion function with respect to the exchange pipe is disposed, and the anticorrosion member is composed of a substantially V-shaped leaf spring composed of an arc-shaped portion and arms connected to both sides of the arc-shaped portion. The capacitor | condenser arrange | positioned in the clearance gap between the protrusion part of the 1st heat exchange pipe | tube of an upper end, and the lower end of a 2nd header tank in the state elastically deformed so that both arm parts may mutually approach .

13) A plurality of heat exchange pipes extending in the left-right direction arranged in parallel in the vertical direction, and a header tank extending in the vertical direction to which both left and right ends of the heat exchange pipe are connected are adjacent to each other in the vertical direction. Two or more heat exchange paths, each of which includes a plurality of heat exchange tubes arranged in series up and down, are provided between the heat exchange tubes and fins brazed to the heat exchange tubes. A capacitor,
A first header tank to which a first heat exchange pipe constituting an upper end heat exchange path is connected to one of the left and right ends, and a second heat constituting a heat exchange path excluding the upper end heat exchange path And a second header tank to which the exchange pipe is connected. The first header tank is disposed on the outer side in the left-right direction with respect to the second header tank, and the lower end of the first header tank is higher than the upper end of the second header tank. Is also located below, the first header tank has a function of separating gas and liquid and storing the liquid, and in the first header tank side portion of the first heat exchange pipe connected to the first header tank, The second heat exchange pipe connected to the second header tank is provided with a protrusion that protrudes outward in the left-right direction from the end on the second header tank side, and a protrusion of the first heat exchange pipe at the lower end, In the gap between the top of the header tank, the first An anticorrosion member having a sacrificial corrosion function with respect to the exchange pipe is disposed, and the anticorrosion member is composed of a substantially V-shaped leaf spring composed of an arc-shaped portion and arms connected to both sides of the arc-shaped portion. The capacitor | condenser arrange | positioned in the clearance gap between the protrusion part of the 1st heat exchange pipe | tube of an upper end, and the lower end of a 2nd header tank in the state elastically deformed so that both arm parts may mutually approach .

14) The capacitor described in 12) or 13) above, wherein all the heat exchange paths are refrigerant condensation paths for condensing the refrigerant .

15) Of the above 8) to 14), the lower arm portion of the anticorrosion member is provided with an engaging portion that engages with the windward side or the leeward side edge of the first heat exchange pipe at the upper end. A capacitor according to any one of the above.

16) a recess is provided on the lower end surface of the second header tank, according to any of the above 8) to 15), which protrusion fits in the recess in the upper arm of the anti-corrosion member is provided Capacitor.

  According to the capacitor of 1), the first heat exchange pipe constituting at least two heat exchange paths including the heat exchange path at the lower end and continuously arranged is connected to one of the left and right end portions. A second header tank to which a second heat exchange pipe constituting a heat exchange path provided above a heat exchange path comprising a first header tank and a first heat exchange pipe connected to the first header tank is connected The first header tank is disposed on the outer side in the left-right direction with respect to the second header tank, and the upper end of the first header tank is located above the lower end of the second header tank. Since the header tank has a function of separating gas and liquid and storing the liquid, the upper end of the first header tank is extended upward, for example, to the vicinity of the upper end of the second header tank. Compared to Without larger than the thickness of the first header tank thickness of the second header tank, the inner volume of the first header tank can be sized to be effectively subjected to gas-liquid separation. Therefore, the space for disposing the capacitor can be reduced as compared with the capacitor described in Patent Document 1. As a result, it is possible to save space. In addition, since a relatively large space exists above the portion of the first header tank to which the heat exchange pipe is connected, the gas-liquid separation effect by gravity is excellent.

  According to the capacitors of 2) to 4), the first heat exchange pipe constituting the at least two heat exchange paths including the heat exchange path at the lower end and continuously arranged is connected to either one of the left and right ends. A first header tank that is connected to a second heat exchange pipe that constitutes a heat exchange path provided above a heat exchange path that is composed of a first heat exchange pipe connected to the first header tank. 2 header tanks are provided, the first header tank is disposed on the outer side in the left-right direction than the second header tank, and the upper end of the first header tank is located above the lower end of the second header tank. Since the first header tank has a function of separating gas and liquid and storing the liquid, the upper end of the first header tank is extended upward, for example, to the vicinity of the upper end of the second header tank. Compared with capacitors Thus, without making the thickness of the first header tank larger than the thickness of the second header tank, the internal volume of the first header tank can be made large enough to effectively perform gas-liquid separation. Therefore, the space for disposing the capacitor can be reduced as compared with the capacitor described in Patent Document 1. As a result, it is possible to save space. In addition, since a relatively large space exists above the portion of the first header tank to which the heat exchange pipe is connected, the gas-liquid separation effect by gravity is excellent.

  According to the capacitors 1) to 4), the second heat exchange pipe connected to the second header tank is connected to the first header tank side portion of the first heat exchange pipe connected to the first header tank. 2 is provided with a protrusion that protrudes outward in the left-right direction from the end on the header tank side, and the first heat is in a gap between the protrusion of the first heat exchange pipe at the upper end and the lower end of the second header tank. Since the anticorrosion member having a sacrificial corrosion function for the exchange pipe is arranged, the occurrence of pitting corrosion on the first heat exchange pipe located at the upper end of all the first heat exchange pipes connected to the first header tank, And the leakage of the refrigerant | coolant resulting from the said pitting corrosion is prevented.

  That is, normally, the occurrence of pitting corrosion on the heat exchange pipe of the condenser and the leakage of the refrigerant due to the pitting corrosion form a sacrificial corrosion layer made of zinc or the like on the outer peripheral surface of the heat exchange pipe, It is prevented by forming the core part excluding the sacrificial corrosion layer in the heat exchange pipe with a material that is sacrificially corroded. However, the first header tank to which the first heat exchange pipe constituting at least two heat exchange paths including the heat exchange path at the lower end and continuously arranged is connected to one of the left and right ends, A second header tank to which a second heat exchange pipe constituting a heat exchange path provided above a heat exchange path made of the first heat exchange pipe connected to the header tank is connected; The header tank is disposed on the outer side in the left-right direction with respect to the second header tank, and the first header tank is located above the lower end of the second header tank and connected to the first header tank. The first header tank side portion of the heat exchange pipe is provided with a protruding portion that protrudes outward in the left-right direction from the second header tank side end portion of the second heat exchange pipe connected to the second header tank. The first A gap is formed between the protrusion on the first header tank side in the first heat exchange pipe located at the upper end of all the first heat exchange pipes connected to the header tank and the lower end of the second header tank. Will be. In this case, since the gap is relatively large and fins are not present in the gap, a relatively large amount of a substance that promotes corrosion of the heat exchange pipe is accumulated in the gap, and the first heat exchange is performed by the corrosion promoting substance. There is a possibility that pitting corrosion may occur in the first heat exchange pipe located at the upper end of the pipe, and refrigerant leakage due to the pitting corrosion may occur.

  On the other hand, if the anticorrosion member which has a sacrificial corrosion function with respect to the 1st heat exchange pipe is arranged in the crevice between the 1st heat exchange pipe of the upper end and the lower end of the 2nd header tank, the anticorrosion member will be The upper end first heat exchange pipe is sacrificially corroded, and pitting corrosion on the first heat exchange pipe and refrigerant leakage from the first heat exchange pipe are prevented.

  According to the condenser 3), the refrigerant flows into the first header tank from the plurality of first heat exchange pipes constituting the refrigerant condensation path located at the lower end, and the gas and liquid are separated in the first header tank. The occurrence of pressure drop can be suppressed and re-vaporization of the liquid refrigerant can be prevented.

  In addition, according to the condenser 3), the refrigerant flows into the first header tank from the plurality of heat exchange pipes constituting the refrigerant condensation path located at the lower end, and the gas and liquid are separated in the first header tank. The gas-liquid separation can be efficiently performed in the first header tank. That is, a gas-liquid mixed phase refrigerant with a large amount of gas phase components flows in the upper first heat exchange pipe among the plurality of first heat exchange pipes constituting the refrigerant condensing path, and also in the lower first heat exchange pipe. Although the gas-liquid mixed phase refrigerant with a lot of liquid phase components flows, the gas-liquid mixed phase refrigerant flows into the first header tank without being mixed, so that the gas-liquid separation can be performed efficiently.

  According to the capacitor of 5) above, the first header tank to which the first heat exchange pipe constituting the lower end heat exchange path is connected to either one of the left and right ends, and the heat excluding the lower end heat exchange path. And a second header tank to which a second heat exchange pipe constituting the exchange path is connected. The first header tank is disposed on the outer side in the left-right direction with respect to the second header tank, and the first header tank Since the upper end is located above the lower end of the second header tank and the first header tank has a function of separating gas and liquid and storing the liquid, the upper end of the first header tank is, for example, the second header tank. By extending upward to the vicinity of the upper end of the header tank, the inner volume of the first header tank can be made without making the thickness of the first header tank larger than the thickness of the second header tank as compared with the capacitor described in Patent Document 1. The gas-liquid It can be sized to be effectively performed away. Therefore, the space for disposing the capacitor can be reduced as compared with the capacitor described in Patent Document 1. Furthermore, since a space exists above the portion of the first header tank to which the heat exchange pipe is connected, the gas-liquid separation effect by gravity is excellent.

  In addition, since the refrigerant flows into the first header tank from the plurality of first heat exchange pipes constituting the heat exchange path located at the lower end, gas and liquid are separated in the first header tank. Gas-liquid separation can be performed efficiently. That is, a gas-liquid mixed phase refrigerant with a large amount of gas phase components flows in the upper first heat exchange pipe among the plurality of first heat exchange pipes constituting the lower end heat exchange path, and also in the lower first heat exchange pipe. The gas-liquid mixed phase refrigerant having a large amount of liquid phase components flows into the first header tank, but the gas-liquid mixed phase refrigerant flows into the first header tank without being mixed, so that the gas-liquid separation can be performed efficiently.

  Furthermore, the portion on the first header tank side of the first heat exchange pipe connected to the first header tank is located on the left and right sides of the second header tank side end of the second heat exchange pipe connected to the second header tank. A protrusion that protrudes outward in the direction is provided, fins are disposed between the protrusions of the adjacent first heat exchange pipes, and in a gap between the first heat exchange pipe at the lower end and the upper end of the second header tank. Since the anticorrosive member having a sacrificial corrosion function for the first heat exchange pipe is arranged, all the first heat exchange pipes connected to the first header tank in the same manner as the capacitors 1) and 2) above. Generation of pitting corrosion on the first heat exchange pipe located at the upper end of the gas and leakage of the refrigerant due to the pitting corrosion are prevented.

  According to the condenser 6) above, the first header tank to which the first heat exchange pipe constituting the upper end heat exchange path is connected to either one of the left and right ends, and the heat excluding the upper end heat exchange path. And a second header tank to which a second heat exchange pipe constituting the exchange path is connected. The first header tank is disposed on the outer side in the left-right direction with respect to the second header tank, and the first header tank Since the lower end is located below the upper end of the second header tank, and the first header tank has a function of separating gas and liquid and storing the liquid, the lower end of the first header tank is, for example, the second header tank. By extending downward to the vicinity of the lower end of the header tank, the inner volume of the first header tank can be made without making the thickness of the first header tank larger than the thickness of the second header tank as compared with the capacitor described in Patent Document 1. The gas-liquid It can be sized to be effectively performed away. Therefore, the space for disposing the capacitor can be reduced as compared with the capacitor described in Patent Document 1.

  Further, the refrigerant flows into the first header tank from the plurality of first heat exchange pipes constituting the heat exchange path located at the upper end, and the gas and liquid are separated in the first header tank. Gas-liquid separation can be performed efficiently. That is, a gas-liquid mixed phase refrigerant with a large amount of gas phase components flows in the upper first heat exchange pipe among the plurality of first heat exchange pipes constituting the upper end heat exchange path, and also in the lower first heat exchange pipe. The gas-liquid mixed phase refrigerant having a large amount of liquid phase components flows into the first header tank, but the gas-liquid mixed phase refrigerant flows into the first header tank without being mixed, so that the gas-liquid separation can be performed efficiently.

Furthermore, the portion on the first header tank side of the first heat exchange pipe connected to the first header tank is located on the left and right sides of the second header tank side end of the second heat exchange pipe connected to the second header tank. A protrusion that protrudes outward in the direction is provided, fins are disposed between the protrusions of the adjacent first heat exchange pipes, and in a gap between the first heat exchange pipe at the lower end and the upper end of the second header tank. Since the anticorrosive member having a sacrificial corrosion function for the first heat exchange pipe is arranged, all the first heat exchange pipes connected to the first header tank in the same manner as the capacitors 1) and 2) above. pitting to the first heat exchange tube, and leakage of the refrigerant caused by the pitting is prevented located at the lower end of the.

According to the capacitors 1) to 6) above, the anticorrosion member is formed by bending one plate, and has a space portion that extends in the ventilation direction and is open at both ends. The anticorrosion member can be placed between the protruding portion of the first heat exchange pipe and the second header tank in a state where the anticorrosion member is deformed so as to be slightly compressed in the vertical direction. It is possible to prevent the anticorrosion member from falling off during attachment.

The capacitors 8) to 13) have the following effects. In other words, the capacitor is manufactured by brazing all parts together, but the anticorrosion member is made of a substantially V-shaped leaf spring and elastically deformed so that both arms approach each other. In the state, when it is disposed in the gap between the protruding portion of the first heat exchange pipe at the upper end and the lower end of the second header tank, the anticorrosion member during brazing in the furnace when manufacturing the capacitor Is prevented from falling off.

According to the capacitor of 15) above, when the parts constituting the capacitor are assembled before brazing, the anticorrosion member can be positioned with respect to the first heat exchange tube.

According to the capacitor of 16) , the anticorrosion member can be positioned with respect to the second header tank, and the anticorrosion member can be effectively prevented from falling off during brazing in a furnace when the capacitor is manufactured. .

1 is a front view specifically showing the overall configuration of a first embodiment of a capacitor according to the present invention; FIG. 2 is a front view schematically showing the capacitor of FIG. 1. It is the elements on larger scale of FIG. It is a perspective view which shows the anticorrosion member used for the capacitor | condenser of FIG. It is a perspective view which shows the 1st modification of a corrosion prevention member. It is a perspective view which shows the 2nd modification of a corrosion prevention member. It is a perspective view which shows the 3rd modification of an anticorrosion member. It is a figure equivalent to FIG. 3 which shows the 4th modification of an anticorrosion member. It is a perspective view which shows the 5th modification of an anticorrosion member. It is a perspective view which shows the state at the time of arrange | positioning the anticorrosion member of FIG. 9 between a 1st heat exchange pipe | tube and a 2nd header tank. FIG. 10 is a view corresponding to FIG. 3 of a capacitor provided with the anticorrosion member of FIG. 9. It is the sectional view on the AA line of FIG. It is a front view which shows typically 2nd Embodiment of the capacitor | condenser by this invention. It is a front view which shows typically 3rd Embodiment of the capacitor | condenser by this invention.

  Embodiments of the present invention will be described below with reference to the drawings.

  In the following description, the downstream side in the ventilation direction (the back side in FIG. 1) is referred to as the front, and the opposite side is referred to as the rear.

  In the following description, the term “aluminum” includes aluminum alloys in addition to pure aluminum.

  Furthermore, the same parts and the same parts are denoted by the same reference numerals throughout the drawings, and redundant description is omitted.

  FIG. 1 specifically shows the overall configuration of a capacitor according to the present invention, and FIG. 2 schematically shows a capacitor according to the present invention. In FIG. 2, illustration of individual heat exchange tubes is omitted, and illustration of corrugated fins, side plates, a refrigerant inlet member, and a refrigerant outlet member is also omitted. 3 and 4 show the configuration of the main part of the capacitor shown in FIG.

  1 and 2, the capacitor (1) has a plurality of flat aluminum heat exchanges arranged at intervals in the vertical direction with the width direction facing the front-rear direction and the length direction facing the left-right direction. Pipes (2A) (2B), and three aluminum header tanks (3), (4), (5) that extend in the vertical direction where the left and right ends of the heat exchange pipes (2A) (2B) are connected by brazing, Aluminum corrugated fins (6A) (6B) brazed to the heat exchange tubes (2A) (2B) between the adjacent heat exchange tubes (2A) (2B) and outside the upper and lower ends; It is equipped with aluminum side plates (7) that are arranged outside the corrugated fins (6A) (6B) at both ends and brazed to the corrugated fins (6A) (6B). Three or more heat exchange paths (P1), (P2), (P3), and (P4), each of which is composed of the heat exchange tubes (2A) and (2B), are provided in the vertical direction. The four heat exchange paths are referred to as first to fourth heat exchange paths (P1) (P2) (P3) (P4) in order from the top. The refrigerant flow directions of all the heat exchange tubes (2A) (2B) constituting each heat exchange path (P1) (P2) (P3) (P4) are the same, and two adjacent heat exchange paths The refrigerant flow directions in the heat exchange tubes (2A) and (2B) are different.

  On the left end side of the condenser (1), heat constituting at least two heat exchange paths including the heat exchange path at the lower end and continuously arranged, here, the third and fourth heat exchange paths (P3) and (P4). The first header tank (3) to which the exchange pipe (2A) is connected by brazing and the heat exchange pipe (2B) constituting the first and second heat exchange paths (P1) and (P2) are connected by brazing. A second header tank (4) is provided separately. Here, the heat exchange pipe (2A) connected to the first header tank (3) is the first heat exchange pipe, and the heat exchange pipe (2B) connected to the second header tank (4) is the second heat. It is an exchange tube. A sacrificial corrosion layer made of zinc or the like is formed on the outer peripheral surfaces of the first and second heat exchange tubes (2A) (2B). Further, corrugated fins (6A) arranged between the adjacent first heat exchange tubes (2A) and between the first heat exchange tube (2A) at the lower end and the lower side plate (7) are provided as the first. It is called a corrugated fin, between adjacent second heat exchange tubes (2B), between the first heat exchange tube (2A) at the upper end and the second heat exchange tube (2B) at the lower end, and at the second heat at the upper end. The corrugated fin (6B) disposed between the exchange pipe (2B) and the upper side plate (7) is referred to as a second corrugated fin. The first and second corrugated fins (6A) and (6B) are formed of a material which is sacrificially corroded with respect to the core portion excluding the sacrificial corrosion layer in the first and second heat exchange tubes (2A) and (2B). Has been.

  The front and rear dimensions of the first header tank (3) and the second header tank (4) are substantially the same, but the horizontal header is larger in the first header tank (3) than in the second header tank (4). Is bigger than. The first header tank (3) is arranged on the left side (outside in the left-right direction) of the second header tank (4), and the center in the left-right direction of the first header tank (3) is the second header tank (4). It is located on the outer side in the left-right direction than the center in the left-right direction. Therefore, the first header tank (3) and the second header tank (4) are displaced without overlapping when seen from the plane. Also, the upper end of the first header tank (3) is above the lower end of the second header tank (4), here, at the same height as the upper end of the second header tank (4). 3) has a function as a liquid receiving part that separates gas and liquid using gravity and stores the liquid. That is, the internal volume of the first header tank (3) is such that the liquid-phase mixed refrigerant flows into the lower part of the first header tank (3) due to gravity. At the same time, the gas phase component of the gas-liquid mixed-phase refrigerant is accumulated in the upper part of the first header tank (3) due to gravity, and thereby enters the first heat exchange pipe (2A) of the fourth heat exchange path (P4). The internal volume is such that only the liquid-phase main mixed refrigerant flows.

  A third header tank (5) to which all the heat exchange pipes (2A) (2B) constituting the first to fourth heat exchange paths (P1) to (P4) are connected to the right end side of the condenser (1). ) Is arranged. The cross-sectional shape of the third header tank (5) is the same as that of the second header tank (4). The third header tank (5) has a height position between the first heat exchange path (P1) and the second heat exchange path (P2), and the third heat exchange path (P3) and the fourth heat exchange path. Aluminum partition plates (8) and (9) respectively provided at a height position between (P4) and the upper header portion (11), the intermediate header portion (12), and the lower header portion (13) It is divided into. The left end of the second heat exchange pipe (2B) of the first heat exchange path (P1) is the second header tank (4), and the right end is the upper header (11) of the third header tank (5). The left end of the second heat exchange pipe (2B) of the second heat exchange path (P2) is connected to the second header tank (4), and the right end is the intermediate header (12) of the third header tank (5). ), The left end of the first heat exchange pipe (2A) of the third heat exchange path (P3) is the first header tank (3), and the right end is the intermediate header of the third header tank (5). The left end of the first heat exchange pipe (2A) of the fourth heat exchange path (P4) is connected to the first header tank (3) and the right end is connected to the third header tank (5). Are connected to the lower header section (13).

  The second header tank (4), the portion of the first header tank (3) where the first heat exchange pipe (2A) of the third heat exchange path (P3) is connected, the upper side of the third header tank (5) The header section (11), the intermediate header section (12), and the first to third heat exchange paths (P1) to (P3) form a condensing section (1A) for condensing the refrigerant, and the first header tank (3) In the fourth heat exchange path (P4) in which the first heat exchange pipe (2A) is connected, the lower header portion (13) of the third header tank (5) and the fourth heat exchange path (P4). A supercooling section (1B) for supercooling is formed, and the first to third heat exchange paths (P1) to (P3) serve as a refrigerant condensation path for condensing the refrigerant, and a fourth heat exchange path (P4 ) Is a refrigerant supercooling path for supercooling the refrigerant.

  A refrigerant inlet (14) is formed in the upper header part (11) of the third header tank (5) constituting the condensing part (1A), and is located under the third header tank (5) constituting the supercooling part (1B). A refrigerant outlet (15) is formed in the side header portion (13). A refrigerant inlet member (16) communicating with the refrigerant inlet (14) and a refrigerant outlet member (17) communicating with the refrigerant outlet (15) are joined to the third header tank (5).

  As shown in FIG. 3, the second header tank (4) is connected to the left side portion (the first header tank (3) side portion) of the first heat exchange pipe (2A) connected to the first header tank (3). A protruding portion (2a) protruding leftward from the left end portion (second header tank (4) portion side end portion) of the second heat exchange pipe (2B) connected to is provided. A gap (18) exists between the protrusion (2a) of the first heat exchange pipe (2A) at the upper end of all the first heat exchange pipes (2A) and the lower end of the second header tank (4). doing. Further, the left corrugated fin (6A) is provided with a protruding portion (6a) projecting leftward from the left end of the second corrugated fin (6B). The protrusion (6a) is disposed between the protrusions (2a) of the adjacent first heat exchange tubes (2A) and brazed to the protrusions (2a).

  In the gap (18) between the protrusion (2a) of the first heat exchange pipe (2A) at the upper end of all the first heat exchange pipes (2A) and the lower end of the second header tank (4), An anticorrosion member (19) having a sacrificial corrosion function for the first heat exchange pipe (2A) is disposed. As shown in FIG. 4, the anticorrosion member (19) includes a wave crest (19a) extending in the ventilation direction, a wave bottom (19b) extending in the ventilation direction, and a connection connecting the wave crest (19a) and the wave bottom (19b). A corrugated material consisting of a part (19c) and having a sacrificial corrosion function for the first heat exchange pipe (2A), here the sacrificial for the core part of the first heat exchange pipe (2A) excluding the sacrificial corrosion layer It is made of a material that is subject to corrosion. The crest (19a) and the crest (19b) of the anticorrosion member (19) are rounded, the crest (19a) is at the lower end of the second header tank (4), and the crest (19b) is the first heat. Each of the protrusions (2a) of the exchange pipe (2A) is brazed.

  The capacitor (1) is manufactured by brazing all parts together. When the condenser (1) is manufactured, the protrusion (2a) of the first heat exchange pipe (2A) and the second header are formed with the anticorrosion member (19) deformed so as to be slightly compressed in the vertical direction. It arrange | positions between the lower ends of a tank (4), As a result, drop-off | omission of the anticorrosion member (19) at the time of brazing in a furnace is prevented.

  The condenser (1) constitutes a refrigeration cycle together with a compressor, an expansion valve (decompressor) and an evaporator, and is mounted on a vehicle as a car air conditioner.

  In the condenser (1) having the above-described configuration, the high-temperature and high-pressure gas-phase refrigerant compressed by the compressor passes through the refrigerant inlet member (16) and the refrigerant inlet (14), and the upper header portion of the third header tank (5). (11) flows into the second heat exchange pipe (2B) of the first heat exchange path (P1) and is condensed while flowing leftward and flows into the second header tank (4). The refrigerant flowing into the second header tank (4) is condensed while flowing to the right in the second heat exchange pipe (2B) of the second heat exchange path (P2), and the third header tank (5). Into the intermediate header portion (12). The refrigerant flowing into the intermediate header portion (12) of the third header tank (5) is condensed while flowing leftward in the first heat exchange pipe (2A) of the third heat exchange path (P3). 1 Flows into the header tank (3).

  The refrigerant flowing into the first header tank (3) is a gas-liquid mixed phase refrigerant. Among the gas-liquid mixed phase refrigerant, the liquid-phase main mixed phase refrigerant is accumulated in the lower part of the first header tank (3) due to gravity. Enter the first heat exchange pipe (2A) of the heat exchange path (P4).

  The liquid phase main mixed refrigerant entering the first heat exchange pipe (2A) of the fourth heat exchange path (P4) is supercooled while flowing rightward in the first heat exchange pipe (2A), It enters the lower header portion (13) of the three header tank (5), flows out through the refrigerant outlet (15) and the refrigerant outlet member (17), and is sent to the evaporator through the expansion valve.

  On the other hand, the gas phase component of the gas-liquid mixed phase refrigerant that has flowed into the first header tank (3) accumulates in the upper part of the first header tank (3).

  5-12 shows the modification of an anticorrosion member.

  The anticorrosion member (20) shown in FIG. 5 includes a wave crest portion (20a) extending in the ventilation direction, a wave bottom portion (20b) extending in the ventilation direction, and a connecting portion (20c) connecting the wave crest portion (20a) and the wave bottom portion (20b). ) And is formed of a material having a sacrificial corrosion function for the first heat exchange pipe (2A). The crest portion (20a) of the anticorrosion member (20) is pointed upward, the crest portion (20b) is also pointed downward, and the crest portion (20a) is the lower end of the second header tank (4). Then, the wave bottom part (20b) is brazed to the projecting part (2a) of the first heat exchange pipe (2A).

  The anticorrosion member (25) shown in FIG. 6 has two space portions (26) having a substantially L-shaped cross section extending in the ventilation direction and open at both ends, and is sacrificed to the first heat exchange tube (2A). It is made of a material having a corrosive function. The anticorrosion member (25) is formed by bending one plate, and an upper wall (26a) common to both the space portions (26) is formed at each space portion (at the lower end of the second header tank (4)). 26) The lower wall (26b) is brazed to the protrusion (2a) of the first heat exchange pipe (2A).

  The anticorrosion member (30) shown in FIG. 7 has two space portions (31) having a substantially circular cross section extending in the ventilation direction and open at both ends, and sacrificial corrosion to the first heat exchange pipe (2A). It is made of a functional material. The anticorrosion member (30) is formed by bending a single plate, and the upper portion of the peripheral wall (31a) of each space portion (31) is placed at the lower end of the second header tank (4), and each space portion (31 ) Of the peripheral wall (31a) is brazed to the protrusion (2a) of the first heat exchange pipe (2A).

  The anticorrosion member (35) shown in FIG. 8 includes a wave crest portion (35a) extending in the ventilation direction, a wave bottom portion (35b) extending in the ventilation direction, and a connection portion (35c) connecting the wave crest portion (35a) and the wave bottom portion (35b). ) And is provided integrally with the second corrugated fin (6B) disposed between the first heat exchange pipe (2A) at the upper end and the second heat exchange pipe (2B) at the lower end. Yes. That is, the left end portion of the second corrugated fin (6B) is extended by pulling it to the left, and the pitch between the adjacent wave crests and the wave bottoms of the second corrugated fin (6B) is increased and the fin height is decreased. It is formed by doing. The wave crest (35a) of the anticorrosion member (35) is brazed to the lower end of the second header tank (4), and the wave bottom (35b) is brazed to the protrusion (2a) of the first heat exchange pipe (2A).

  In the case of the anticorrosion members (20), (25), (30), and (35) shown in FIGS. 5 to 8, the capacitor (1) is deformed to be slightly compressed in the vertical direction when the capacitor (1) is manufactured. Thus, it is disposed between the protrusion (2a) of the first heat exchange pipe (2A) and the lower end of the second header tank (4), so that the anticorrosion member (20) (25) ( 30) Dropping of (35) is prevented.

  The anticorrosion member (60) shown in FIG. 9 is composed of a substantially V-shaped leaf spring comprising an arcuate part (61) and arms (62) (63) connected to the upper and lower sides of the arcuate part (61). It is made of a material having a sacrificial corrosion function for the first heat exchange pipe (2A). The anti-corrosion member (60) is connected to the lower arm portion (63) of the anti-corrosion member (60) between the protrusion (2a) of the first heat exchange pipe (2A) at the upper end and the lower end of the second header tank (4). Engaging with the leeward or leeward side edge of the protrusion (2a) of the first heat exchange pipe (2A) at the upper end, here the leeward edge (front edge). The joint part (64) is integrally provided in a downward projecting shape.

  The anticorrosion member (60) is placed on the upper arm portion (62) of the anticorrosion member (60) between the protrusion (2a) of the first heat exchange pipe (2A) at the upper end and the lower end of the second header tank (4). When arranged, a convex portion (65) that fits into a recess (4a) provided in the lower end surface of the second header tank (4) is provided in an upward projecting shape. Further, the lower arm portion (63) of the anticorrosion member (60) is provided with a convex portion (66) protruding downward and having a flat end surface.

  When the capacitor (1) is manufactured, as shown in FIG. 10, the anticorrosion member (60) is arranged so that the arc-shaped portion (61) faces rearward and the arms (62) and (63) approach each other. In an elastically deformed state, it is inserted from the front between the protrusion (2a) of the first heat exchange pipe (2A) at the upper end and the lower end of the second header tank (4), and the engaging portion (64) Is engaged with the front edge of the protrusion (2a) of the first heat exchange pipe (2A) at the upper end. In addition, even if it inserts from the front between the protrusion part (2a) of the 1st heat exchange pipe | tube (2A) of an upper end, and the 2nd header tank (4) in the state shown in FIG. 9 without elastically deforming. Good. At this time, as shown in FIGS. 11 and 12, the convex portion (65) of the upper arm portion (62) fits into the recess (4a) provided in the lower end surface of the second header tank (4), Further, the upper arm (62) contacts the portion around the recess (65) on the lower end surface of the second header tank (4), and the protruding end surface of the convex portion (66) of the lower arm (63) In contact with the upper end surface of the protrusion (2a) of the first heat exchange pipe (2A), the anticorrosion member (60) is stretched between the first heat exchange pipe (2A) and the second header tank (4). Is temporarily fixed. As a result, the anticorrosion member (60) is prevented from falling off during brazing in the furnace.

  In this state, the upper arm (62) is brazed to the second header tank (4), and the convex portion (66) of the lower arm (63) is brazed to the first heat exchange pipe (2A). Has been.

  13 and 14 show another embodiment of the capacitor according to the present invention. 13 and 14 schematically show the condenser, and illustrations of individual heat exchange tubes are omitted, and illustrations of corrugated fins, side plates, a refrigerant inlet member, and a refrigerant outlet member are also omitted. Yes.

  In the case of the condenser (40) shown in FIG. 13, two heat exchange paths (P1) and (P2) are arranged in the vertical direction, each consisting of a plurality of heat exchange pipes (2A) and (2B) that are continuously arranged in the vertical direction. Yes. The two heat exchange paths are referred to as first to second heat exchange paths (P1) and (P2) in order from the top. The refrigerant flow directions of all the heat exchange tubes (2A) (2B) constituting each heat exchange path (P1) (P2) are the same, and the heat exchange tubes (2A) of two adjacent heat exchange paths The refrigerant flow direction of (2B) is different.

  The left and right ends of the heat exchange pipe (2B) constituting the first heat exchange path (P1) are connected to the second header tank (4) and the third header tank (5) by brazing. The left and right ends of the heat exchange pipe (2A) constituting the second heat exchange path (P2) are connected to the first header tank (3) and the third header tank (5) by brazing. Therefore, the heat exchange pipe (2A) constituting the second heat exchange path (P2) is the first heat exchange pipe, and the heat exchange pipe (2B) constituting the first heat exchange path (P1) is the second heat exchange pipe. It is a tube.

  The first to third header tanks (3) to (5) and the first and second heat exchange paths (P1) and (P2) form a condensing part (40A) for condensing the refrigerant, and the first and first Two heat exchange paths (P1) and (P2), that is, all the heat exchange paths are refrigerant condensation paths for condensing the refrigerant.

  A refrigerant inlet (41) is formed at the upper end of the second header tank (4) constituting the condensing unit (40A), and a refrigerant outlet (42) is formed at the lower end of the first header tank (3). A refrigerant inlet member (not shown) that communicates with the refrigerant inlet (41) is joined to the first header tank (5), and a refrigerant outlet member (not shown) that also communicates with the first header tank (3) to the refrigerant outlet (42). ) Is joined.

  In the condenser (40) shown in FIG. 13, in the gap (18) between the protrusion (2a) of the first heat exchange pipe (2A) at the upper end and the lower end of the second header tank (4), FIG. An anticorrosion member (not shown) having a configuration shown in any of FIGS. 12 to 12 and having a sacrificial corrosion function with respect to the first heat exchange pipe (2A) is disposed.

  Other configurations are the same as those of the capacitor shown in FIGS.

  In the condenser (40) shown in FIG. 13, the high-temperature and high-pressure gas-phase refrigerant compressed by the compressor flows into the second header tank (4) through the refrigerant inlet member and the refrigerant inlet (41), and the first It is condensed while flowing in the second heat exchange pipe (2B) of the heat exchange path (P1) and flows into the third header tank (5). The refrigerant flowing into the third header tank (5) is condensed while flowing to the left in the first heat exchange pipe (2A) of the second heat exchange path (P2), and the first header tank (3). Flows in.

  The refrigerant flowing into the first header tank (3) is a gas-liquid mixed phase refrigerant. Among the gas-liquid mixed phase refrigerant, the liquid-phase main mixed phase refrigerant is accumulated in the lower portion of the first header tank (3) due to gravity, and the refrigerant outlet It flows out through (42) and the refrigerant outlet member, and is sent to the evaporator through the expansion valve.

  On the other hand, the gas phase component of the gas-liquid mixed phase refrigerant that has flowed into the first header tank (3) accumulates in the upper part of the first header tank (3).

  In the case of the condenser (50) shown in FIG. 14, two heat exchange paths (P1) and (P2) each having a plurality of heat exchange pipes (2A) and (2B) arranged vertically are arranged vertically. Yes. The two heat exchange paths are referred to as first to second heat exchange paths (P1) and (P2) in order from the bottom. The refrigerant flow directions of all the heat exchange tubes (2A) (2B) constituting each heat exchange path (P1) (P2) are the same, and the heat exchange tubes (2A) of two adjacent heat exchange paths The refrigerant flow direction of (2B) is different.

  The left and right ends of the heat exchange pipe (2B) constituting the first heat exchange path (P1) are connected to the second header tank (4) and the third header tank (5) by brazing. The left and right ends of the heat exchange pipe (2A) constituting the second heat exchange path (P2) are connected to the first header tank (3) and the third header tank (5) by brazing. Therefore, the heat exchange pipe (2A) constituting the second heat exchange path (P2) is the first heat exchange pipe, and the heat exchange pipe (2B) constituting the first heat exchange path (P1) is the second heat exchange pipe. It is a tube.

  The lower end of the first header tank (3) arranged on the left side of the second header tank (4) is located below the upper end of the second header tank (4), and the first header tank (3) Has a gas-liquid separation function.

  The first to third header tanks (3) to (5) and the first and second heat exchange paths (P1) and (P2) form a condensing part (50A) for condensing the refrigerant. Two heat exchange paths (P1) and (P2), that is, all the heat exchange paths are refrigerant condensation paths for condensing the refrigerant.

  A refrigerant inlet (51) is formed at the lower end of the second header tank (4) constituting the condensing part (50A), and a refrigerant outlet (52) is formed at the lower end of the first header tank (3). A refrigerant inlet member (not shown) leading to the refrigerant inlet (51) is joined to the second header tank (4), and a refrigerant outlet member (not shown) leading to the refrigerant outlet (52) is also connected to the first header tank (3). ) Is joined.

  In the condenser (50) shown in FIG. 14, in the gap (53) between the protrusion (2a) of the first heat exchange pipe (2A) at the lower end and the upper end of the second header tank (4), FIG. An anticorrosion member (not shown) having a configuration shown in any of FIGS. 12 to 12 and having a sacrificial corrosion function with respect to the first heat exchange pipe (2A) is disposed.

  Other configurations are the same as those of the capacitor shown in FIGS.

  In the capacitor (50) shown in FIG. 14, the high-temperature and high-pressure gas-phase refrigerant compressed by the compressor flows into the second header tank (4) through the refrigerant inlet member and the refrigerant inlet (51), and the first It is condensed while flowing in the second heat exchange pipe (2B) of the heat exchange path (P1) and flows into the third header tank (5). The refrigerant flowing into the third header tank (5) is condensed while flowing to the left in the first heat exchange pipe (2A) of the second heat exchange path (P2), and the first header tank (3). Flows in. The refrigerant flowing into the first header tank (3) is a gas-liquid mixed phase refrigerant. Among the gas-liquid mixed phase refrigerant, the liquid-phase main mixed phase refrigerant is accumulated in the lower portion of the first header tank (3) due to gravity, and the refrigerant outlet It flows out through (52) and the refrigerant outlet member, and is sent to the evaporator through the expansion valve.

  On the other hand, the gas phase component of the gas-liquid mixed phase refrigerant that has flowed into the first header tank (3) accumulates in the upper part of the first header tank (3).

  In the capacitors (40) and (50) shown in FIG. 13 and FIG. 14, a plurality of second heats lined up and down continuously between the second header tank (4) and the third header tank (5). Two or more heat exchange paths composed of the exchange pipe (2B) may be provided side by side. When an even number of heat exchange paths are provided between the second header tank (4) and the third header tank (5), a refrigerant inlet is formed at the lower end of the third header tank (5), and An appropriate number of header sections are provided in the second header tank (4) and the third header tank (5). When an odd number of heat exchange paths are provided between the second header tank (4) and the third header tank (5), a refrigerant inlet is formed at the lower end of the second header tank (4). In addition, an appropriate number of header sections are provided in the second header tank (4) and the third header tank (5).

  In all the capacitors (1), (40), and (50) described above, at least one of a desiccant, a gas-liquid separation member, and a filter may be disposed in the first header tank (3). is there.

  The capacitor | condenser by this invention is used suitably for the car air conditioner mounted in a motor vehicle.

(1) (40) (50): Capacitor
(1A) (40A) (50A): Condensing part
(1B): Supercooling section
(2A): 1st heat exchange tube
(2a): Projection
(2B): Second heat exchange tube
(3): First header tank
(4): Second header tank
(4a): Recess
(5): Third header tank
(6A): 1st corrugated fin
(6B): 2nd corrugated fin
(6a): Projection
(18): Clearance
(19) (20) (25) (30) (35) (60): Anti-corrosion material
(61): Arc-shaped part
(62) (63): Arm
(64): Engagement part
(65): Convex part
(P1): First heat exchange path
(P2): Second heat exchange path
(P3): Third heat exchange path
(P4): Fourth heat exchange path

Claims (16)

Heat exchange pipes that are arranged in parallel in the vertical direction and that extend in the left-right direction, header tanks that extend in the vertical direction to which both left and right ends of the heat exchange pipe are connected, and heat exchange that is adjacent in the vertical direction A condenser which is provided between a plurality of heat exchange pipes which are arranged between pipes and which are brazed to the heat exchange pipes and which are arranged in a row. There,
A first header tank connected to a first heat exchange pipe constituting at least one heat exchange path positioned on the lower side on either one of the left and right ends, and a first heat exchange connected to the first header tank And a second header tank connected to a second heat exchange pipe constituting the remaining heat exchange path provided above the heat exchange path formed of the pipe, the first header tank being the second header tank The upper end of the first header tank is located above the lower end of the second header tank, and the first header tank has a function of separating gas and liquid and storing the liquid. In addition, the portion on the first header tank side in the first heat exchange pipe connected to the first header tank is more lateral than the end on the second header tank side in the second heat exchange pipe connected to the second header tank. Projection that protrudes outward Provided, the protruding portion of the first heat exchange tubes of the upper end, in the gap between the lower end of the second header tank are disposed corrosion member having a sacrificial corrosion function with respect to the first heat exchange tubes, corrosion member However, the capacitor | condenser which is formed by bending the board of 1 sheet, has the space part extended in the ventilation direction and having both ends opened . Heat exchange pipes that are arranged in parallel in the vertical direction and that extend in the left-right direction, header tanks that extend in the vertical direction to which both left and right ends of the heat exchange pipe are connected, and heat exchange that is adjacent in the vertical direction A condenser having fins disposed between pipes and brazed to the heat exchange pipes, and having three or more heat exchange paths arranged in a row in the vertical direction. Because
A first header tank to which a first heat exchange pipe constituting at least two heat exchange paths including a heat exchange path at the lower end and continuously arranged is connected to either one of the left and right ends; and a first header tank And a second header tank to which a second heat exchange pipe constituting a heat exchange path provided above the heat exchange path formed by the first heat exchange pipe connected to the first heat exchange pipe is connected. However, the upper end of the first header tank is located above the lower end of the second header tank, and the first header tank separates gas and liquid. 2nd header tank side in the 2nd heat exchange pipe connected to the 2nd header tank in the part by the side of the 1st header tank in the 1st heat exchange pipe connected to the 1st header tank Left and right direction from the edge of The anticorrosion member which has the sacrificial corrosion function with respect to the 1st heat exchange pipe is provided in the crevice between the projection part of the 1st heat exchange pipe of the upper end, and the lower end of the 2nd header tank. The capacitor | condenser which is arrange | positioned , the anti-corrosion member is formed by bending one board, has a space part extended in the ventilation direction and having both ends opened . The heat exchange path at the upper end of the heat exchange path consisting of the first heat exchange pipe connected to the first header tank and the heat exchange path consisting of the second heat exchange pipe connected to the second header tank are refrigerant. Is a refrigerant condensing path that condenses the refrigerant, and the heat exchanging path excluding the heat exchanging path at the upper end of the heat exchanging path composed of the first heat exchanging pipe connected to the first header tank subcools the refrigerant. The capacitor according to claim 2, wherein the capacitor is a path. The first heat exchange pipe constituting at least two heat exchange paths is connected to the first header tank, and the second heat exchange pipe constituting at least one heat exchange path is connected to the second header tank. Or the capacitor | condenser of 3. Heat exchange pipes that are arranged in parallel in the vertical direction and that extend in the left-right direction, header tanks that extend in the vertical direction to which both left and right ends of the heat exchange pipe are connected, and heat exchange that is adjacent in the vertical direction A condenser having fins disposed between the tubes and brazed to the heat exchange tubes, and having two or more heat exchange paths arranged in a row in the vertical direction. Because
A first header tank to which a first heat exchange pipe constituting a lower end heat exchange path is connected to either one of the left and right ends, and a second heat constituting a heat exchange path excluding the lower end heat exchange path A second header tank to which the exchange pipe is connected, the first header tank is disposed on the outer side in the left-right direction than the second header tank, and the upper end of the first header tank is lower than the lower end of the second header tank. Is also located above, the first header tank has a function of separating gas and liquid and storing the liquid, and in the first header tank side portion of the first heat exchange pipe connected to the first header tank, The second heat exchange pipe connected to the second header tank is provided with a protrusion that protrudes outward in the left-right direction from the end on the second header tank side, and a protrusion of the first heat exchange pipe at the upper end, In the gap between the lower end of the header tank, There is disposed a corrosion member having a sacrificial corrosion function for exchange tubes, anticorrosion member being formed by bending a single plate, it extends and ends in the ventilation direction and has a space that is open capacitor . Heat exchange pipes that are arranged in parallel in the vertical direction and that extend in the left-right direction, header tanks that extend in the vertical direction to which both left and right ends of the heat exchange pipe are connected, and heat exchange that is adjacent in the vertical direction A condenser having fins disposed between the tubes and brazed to the heat exchange tubes, and having two or more heat exchange paths arranged in a row in the vertical direction. Because
A first header tank to which a first heat exchange pipe constituting an upper end heat exchange path is connected to one of the left and right ends, and a second heat constituting a heat exchange path excluding the upper end heat exchange path And a second header tank to which the exchange pipe is connected. The first header tank is disposed on the outer side in the left-right direction with respect to the second header tank, and the lower end of the first header tank is higher than the upper end of the second header tank. Is also located below, the first header tank has a function of separating gas and liquid and storing the liquid, and in the first header tank side portion of the first heat exchange pipe connected to the first header tank, The second heat exchange pipe connected to the second header tank is provided with a protrusion that protrudes outward in the left-right direction from the end on the second header tank side, and a protrusion of the first heat exchange pipe at the lower end, In the gap between the top of the header tank, the first There is disposed a corrosion member having a sacrificial corrosion function for exchange tubes, anticorrosion member being formed by bending a single plate, it extends and ends in the ventilation direction and has a space that is open capacitor . The condenser according to claim 5 or 6, wherein all the heat exchange paths are refrigerant condensation paths for condensing the refrigerant. Heat exchange pipes that are arranged in parallel in the vertical direction and that extend in the left-right direction, header tanks that extend in the vertical direction to which both left and right ends of the heat exchange pipe are connected, and heat exchange that is adjacent in the vertical direction A condenser which is provided between a plurality of heat exchange pipes which are arranged between pipes and which are brazed to the heat exchange pipes and which are arranged in a row. There,
A first header tank connected to a first heat exchange pipe constituting at least one heat exchange path positioned on the lower side on either one of the left and right ends, and a first heat exchange connected to the first header tank And a second header tank connected to a second heat exchange pipe constituting the remaining heat exchange path provided above the heat exchange path formed of the pipe, the first header tank being the second header tank The upper end of the first header tank is located above the lower end of the second header tank, and the first header tank has a function of separating gas and liquid and storing the liquid. In addition, the portion on the first header tank side in the first heat exchange pipe connected to the first header tank is more lateral than the end on the second header tank side in the second heat exchange pipe connected to the second header tank. Projection that protrudes outward An anticorrosion member that is provided and has a sacrificial corrosion function with respect to the first heat exchange pipe is disposed in a gap between the protrusion of the first heat exchange pipe at the upper end and the lower end of the second header tank. Is formed of a substantially V-shaped leaf spring composed of an arc-shaped portion and arms connected to both sides of the arc-shaped portion, and the anticorrosion member is elastically deformed so that both arms approach each other. The capacitor | condenser arrange | positioned in the clearance gap between the protrusion part of the 1st heat exchange pipe | tube, and the lower end of a 2nd header tank . Heat exchange pipes that are arranged in parallel in the vertical direction and that extend in the left-right direction, header tanks that extend in the vertical direction to which both left and right ends of the heat exchange pipe are connected, and heat exchange that is adjacent in the vertical direction A condenser having fins disposed between pipes and brazed to the heat exchange pipes, and having three or more heat exchange paths arranged in a row in the vertical direction. Because
A first header tank to which a first heat exchange pipe constituting at least two heat exchange paths including a heat exchange path at the lower end and continuously arranged is connected to either one of the left and right ends; and a first header tank And a second header tank to which a second heat exchange pipe constituting a heat exchange path provided above the heat exchange path formed by the first heat exchange pipe connected to the first heat exchange pipe is connected. However, the upper end of the first header tank is located above the lower end of the second header tank, and the first header tank separates gas and liquid. 2nd header tank side in the 2nd heat exchange pipe connected to the 2nd header tank in the part by the side of the 1st header tank in the 1st heat exchange pipe connected to the 1st header tank Left and right direction from the edge of The anticorrosion member which has the sacrificial corrosion function with respect to the 1st heat exchange pipe is provided in the crevice between the projection part of the 1st heat exchange pipe of the upper end, and the lower end of the 2nd header tank. The anticorrosion member is composed of a substantially V-shaped leaf spring composed of an arc-shaped portion and arm portions connected to both sides of the arc-shaped portion, and the anticorrosion member is elastically deformed so that both arm portions approach each other. The capacitor | condenser arrange | positioned in the clearance gap between the protrusion part of the 1st heat exchange pipe | tube of an upper end, and the lower end of a 2nd header tank in the made state . The heat exchange path at the upper end of the heat exchange path consisting of the first heat exchange pipe connected to the first header tank and the heat exchange path consisting of the second heat exchange pipe connected to the second header tank are refrigerant. Is a refrigerant condensing path that condenses the refrigerant, and the heat exchanging path excluding the heat exchanging path at the upper end of the heat exchanging path composed of the first heat exchanging pipe connected to the first header tank subcools the refrigerant. The capacitor according to claim 9 , wherein the capacitor is a path . The first heat exchange pipe constituting at least two heat exchange paths is connected to the first header tank, and the second heat exchange pipe constituting at least one heat exchange path is connected to the second header tank. Or the capacitor | condenser of 10 . Heat exchange pipes that are arranged in parallel in the vertical direction and that extend in the left-right direction, header tanks that extend in the vertical direction to which both left and right ends of the heat exchange pipe are connected, and heat exchange that is adjacent in the vertical direction A condenser having fins disposed between the tubes and brazed to the heat exchange tubes, and having two or more heat exchange paths arranged in a row in the vertical direction. Because
A first header tank to which a first heat exchange pipe constituting a lower end heat exchange path is connected to either one of the left and right ends, and a second heat constituting a heat exchange path excluding the lower end heat exchange path A second header tank to which the exchange pipe is connected, the first header tank is disposed on the outer side in the left-right direction than the second header tank, and the upper end of the first header tank is lower than the lower end of the second header tank. Is also located above, the first header tank has a function of separating gas and liquid and storing the liquid, and in the first header tank side portion of the first heat exchange pipe connected to the first header tank, The second heat exchange pipe connected to the second header tank is provided with a protrusion that protrudes outward in the left-right direction from the end on the second header tank side, and a protrusion of the first heat exchange pipe at the upper end, In the gap between the lower end of the header tank, An anticorrosion member having a sacrificial corrosion function with respect to the exchange pipe is disposed, and the anticorrosion member is composed of a substantially V-shaped leaf spring composed of an arc-shaped portion and arms connected to both sides of the arc-shaped portion. The capacitor | condenser arrange | positioned in the clearance gap between the protrusion part of the 1st heat exchange pipe | tube of an upper end, and the lower end of a 2nd header tank in the state elastically deformed so that both arm parts may mutually approach . Heat exchange pipes that are arranged in parallel in the vertical direction and that extend in the left-right direction, header tanks that extend in the vertical direction to which both left and right ends of the heat exchange pipe are connected, and heat exchange that is adjacent in the vertical direction A condenser having fins disposed between the tubes and brazed to the heat exchange tubes, and having two or more heat exchange paths arranged in a row in the vertical direction. Because
A first header tank to which a first heat exchange pipe constituting an upper end heat exchange path is connected to one of the left and right ends, and a second heat constituting a heat exchange path excluding the upper end heat exchange path And a second header tank to which the exchange pipe is connected. The first header tank is disposed on the outer side in the left-right direction with respect to the second header tank, and the lower end of the first header tank is higher than the upper end of the second header tank. Is also located below, the first header tank has a function of separating gas and liquid and storing the liquid, and in the first header tank side portion of the first heat exchange pipe connected to the first header tank, The second heat exchange pipe connected to the second header tank is provided with a protrusion that protrudes outward in the left-right direction from the end on the second header tank side, and a protrusion of the first heat exchange pipe at the lower end, In the gap between the top of the header tank, the first An anticorrosion member having a sacrificial corrosion function with respect to the exchange pipe is disposed, and the anticorrosion member is composed of a substantially V-shaped leaf spring composed of an arc-shaped portion and arms connected to both sides of the arc-shaped portion. The capacitor | condenser arrange | positioned in the clearance gap between the protrusion part of the 1st heat exchange pipe | tube of an upper end, and the lower end of a 2nd header tank in the state elastically deformed so that both arm parts may mutually approach . The capacitor according to claim 12 or 13, wherein all the heat exchange paths are refrigerant condensation paths for condensing the refrigerant . The engaging part which engages with the side edge part of the windward side or leeward side of the 1st heat exchange pipe | tube of an upper end is provided in the arm part below the anticorrosion member in any one of Claims 8-14 The capacitor described . The capacitor | condenser in any one of Claims 8-15 by which the recessed part is provided in the lower end surface of the 2nd header tank, and the convex part which fits in the said recessed part is provided in the upper arm part of the anticorrosion member .

Images