CN203719258U

CN203719258U - Condenser

Info

Publication number: CN203719258U
Application number: CN201420043493.2U
Authority: CN
Inventors: 大桥日出雄
Original assignee: Keihin Thermal Technology Corp
Current assignee: Mahle Behr Thermal Systems Japan Ltd
Priority date: 2013-03-13
Filing date: 2014-01-23
Publication date: 2014-07-16
Anticipated expiration: 2024-01-23
Also published as: JP2014173831A

Abstract

The utility model provides a condenser with a first liquid collection tank not provided with a portion protruding to the outer side more than a supercooling portion. The first liquid collection tank of the condenser comprises a cylindrical body with the lower end open and an anti-leakage part for preventing refrigerant from leaking out of the cylindrical body. An internal thread part is arranged in the cylindrical body of the first liquid collection tank and at the position corresponding to the height of the supercooling part. A cylindrical portion with the upper and lower ends open and with an internal thread formed on the inner peripheral surface is arranged on the internal thread part. An external thread part with an external thread formed on the outer peripheral surface is arranged on the anti-leakage part. The external thread of the external thread part is engaged with and embedded in the internal thread of the internal thread part. A refrigerant flow space is formed between the internal peripheral surface of the cylindrical body and the outer peripheral surface of the cylindrical portion. The end of a heat exchange tube of the supercooling portion protrudes into the refrigerant flow space.

Description

Condenser

Technical field

The utility model relates to the condenser that is suitable for for example carrying the air conditioning for automobiles as kind of refrigeration cycle on automobile.

In this specification and claims book, by upper and lower, the left and right of Fig. 1 and Fig. 7 be called up and down, left and right.

Background technology

As the condenser of for example air conditioning for automobiles, use widely the condenser of excessively cold (subcool) formula with condensation part and supercooling portion.

Condenser as the Overcold for air conditioning for automobiles, the applicant has formerly proposed following condenser, the mode that condensation part and supercooling portion are positioned at upside with the former arranges, this condenser has: a plurality of heat-exchange tubes, it makes length direction towards left and right directions, and is configured to devices spaced apart shape arranged side by side on above-below direction, and catch box, it is connected with the both ends, left and right of heat-exchange tube and extends along the vertical direction, the heat exchange paths consisting of a plurality of heat-exchange tubes along arranging continuously up and down arranges more than three along being arranged above and below, the heat exchange paths being arranged on condensation part is the condensation of refrigerant path that makes condensation of refrigerant, the heat exchange paths being arranged in supercooling portion is to make the overcooled cold-producing medium supercooling of cold-producing medium path, the a certain end side in left and right, be provided with the 1st catch box being connected with the heat-exchange tube of the heat-exchange tube of cold-producing medium supercooling path and the condensation of refrigerant path of lower end, the 2nd catch box being connected with the heat-exchange tube of condensation of refrigerant path condensation of refrigerant path with except lower end, the 1st catch box is than the right outside configuration that keeps left of the 2nd catch box, and the upper end of the 1st catch box is positioned at top than the lower end of the 2nd catch box, the 1st catch box has the gas-liquid separation of making and stores the function of liquid, and in the 1st catch box, dispose the drier storage member (with reference to patent documentation 1) of having taken in drier.

In the condenser of recording at patent documentation 1, the 1st catch box comprises the cylindrical body of bottom sealing and upper end opening and installs and removes the packaged unit that is arranged on freely the upper end of cylindrical body and the upper end open of sealing cylindrical body, by the upper end open of cylindrical body, drier storage member picked and placeed.Therefore,, in the situation that the condenser that patent documentation 1 is recorded needs to change drier storage member after packing air conditioning for automobiles into, from top, carry out this operation.

Yet, in the condenser of air conditioning for automobiles, due to the relation of the layout of the engine room of automobile, there is the situation of the replacing operation that requires to carry out from below drier storage member.

Therefore, the applicant proposes following condenser, in the condenser of recording at patent documentation 1, make the bottom of the 1st catch box more outstanding than the lower end of supercooling portion downwards, the 1st catch box comprises the cylindrical body of upper end closed and lower ending opening, be arranged on freely the bottom of cylindrical body and prevent that cold-producing medium is from the leakage-proof part of cylindrical body internal leakage with mounting or dismounting, bottom at the inner peripheral surface of the cylindrical body of the 1st catch box is formed with internal thread, leakage-proof part has for being inserted into the insertion section in cylindrical body, on the outer peripheral face of insertion section, be formed with external screw thread, insertion section screws in the bottom that is embedded into cylindrical body, condensation part in the 1st catch box and the height and position between supercooling portion, be provided with and will in the 1st catch box, be divided into the separating part in two spaces arranged side by side along the vertical direction, the mode that the heat-exchange tube of the condensation of refrigerant path in the downstream of flow of refrigerant direction is communicated with the upside space with in the 1st catch box engages with cylindrical body, the mode that the heat-exchange tube of cold-producing medium supercooling path is communicated with the lower side space with in the 1st catch box engages with cylindrical body, the heat-exchange tube of condensation of refrigerant path in downstream of flow of refrigerant direction and the end of the heat-exchange tube of cold-producing medium supercooling path are respectively to outstanding in the 1st catch box, in the 1st catch box, drier storage member is to run through separating part and to configure across the mode of the both sides up and down of separating part, from the heat-exchange tube of the condensation of refrigerant path of flow of refrigerant direction downstream, flow into cold-producing medium in the upside space in the 1st catch box the part by condensation part side flow in drier storage member than separating part, then by drier storage member and flowing out to the lower side space in the 1st catch box than separating part by the part place of supercooling portion side, and then flow in the heat-exchange tube of the cold-producing medium supercooling path adjacent with condensation of refrigerant path (with reference to patent documentation 2).

In the condenser of recording at patent documentation 2, for leakage-proof part being installed and removed to the heat-exchange tube and the object being communicated with in the 1st catch box that is arranged on freely in cylindrical body and makes supercooling portion, make the bottom of the 1st catch box more side-prominent than supercooling portion downwards, on the inner peripheral surface of this protuberance, be formed with internal thread, leakage-proof part has for being inserted into the tubular insertion section in cylindrical body, on the outer peripheral face of insertion section, be formed with external screw thread, tubular insertion section screws in the bottom that is embedded in cylindrical body.

But, the bottom of the 1st catch box of the condenser of recording due to patent documentation 2 is more side-prominent downwards than supercooling portion, so when packing the air conditioning for automobiles with this condenser into automobile, exist the protuberance to downside of the lower end of the 1st catch box to become obstruction, thereby reduce the hidden danger of workability.

Prior art document

Patent documentation

Patent documentation 1: No. 2010/047320 brochure of International Publication

Patent documentation 2: TOHKEMY 2012-154606 communique

Utility model content

The purpose of this utility model is, provides a kind of and meets above-mentioned requirements, the 1st catch box and do not have the condenser of outstanding part laterally than supercooling portion.

To achieve these goals, the utility model consists of following mode.

1) a kind of condenser, condensation part and supercooling portion arrange along being arranged above and below, this condenser has: make length direction towards left and right directions and be configured to devices spaced apart along the vertical direction a plurality of heat-exchange tubes of shape arranged side by side, with make length direction towards above-below direction the catch box that configures and be connected with the both ends, left and right of heat-exchange tube, the a certain end side in left and right, be provided with the 1st catch box that is connected and has the function of carrying out gas-liquid separation and storing liquid with the heat-exchange tube of supercooling portion, with the 2nd catch box that is configured in the left and right directions inner side of the 1st catch box, the condensation part side end of the 1st catch box cross the 2nd catch box supercooling portion side one end and to another distolateral extension of the 2nd catch box, the 1st catch box comprises: the cylindrical body of the sealing of condensation part side end and supercooling portion side end opening, be arranged on freely the supercooling portion side end of cylindrical body with mounting or dismounting and prevent that cold-producing medium is from the leakage-proof part of the opening leakage of the supercooling portion side end of cylindrical body, the heat-exchange tube of supercooling portion is connected with the 1st catch box to outstanding mode in the cylindrical body of the 1st catch box with end, the cold-producing medium that has passed through condensation part flow in the heat-exchange tube of supercooling portion after in flowing into the 1st catch box

The height and position corresponding with supercooling portion in the cylindrical body of the 1st catch box, be provided with at leakage-proof part to the interior threaded part utilizing in the mounting or dismounting of cylindrical body installation freely, on interior threaded part, be provided with cylindrical portion, this cylindrical portion makes length direction towards above-below direction, and one end towards the outside opening of the supercooling portion side of cylindrical body and the other end towards the part opening by the condensation part side in the 1st catch box than interior threaded part, the inner peripheral surface of cylindrical portion is barrel surface and is formed with internal thread in this barrel surface

On leakage-proof part, to be provided with outer peripheral face be barrel surface and in this barrel surface, be formed with externally threaded cylindric externally threaded item, the external screw thread of the externally threaded item of leakage-proof part screws the internal thread of the interior threaded part that is embedded in cylindrical body, leakage-proof part mounting or dismounting are arranged in cylindrical body freely thus

Between the inner peripheral surface of the part that the heat-exchange tube with supercooling portion in the cylindrical body of the 1st catch box is connected and the cylindrical portion outer peripheral face of interior threaded part, be formed with cold-producing medium free air space, give prominence in cold-producing medium free air space the end of the heat-exchange tube of supercooling portion, flows into the cold-producing medium of being in cooling end side space flow into the heat-exchange tube of supercooling portion via cold-producing medium free air space from side space, condensation part.

2) as above-mentioned 1) as described in condenser, between the inner peripheral surface of cylindrical body and the cylindrical portion outer peripheral face of interior threaded part of the 1st catch box, within the scope of complete cycle, be formed with cold-producing medium free air space, interior threaded part is arranged in the whole altitude range of supercooling portion, both ends up and down in the cylindrical portion of interior threaded part are provided with closure, this closure is stretched out laterally and the inner peripheral surface of periphery edge and cylindrical body is close to, the two ends up and down of shutoff cold-producing medium free air space thus, via the opening of the condensation part side end of this cylindrical portion, be communicated with in the space of condensation part side in the 1st catch box and the cylindrical portion of interior threaded part, in the cylindrical portion of interior threaded part, be formed with and make the cold-producing medium being communicated with cold-producing medium free air space in this cylindrical portion pass through hole.

3) as above-mentioned 2) as described in condenser, the externally threaded item of leakage-proof part has leakage barriers, this leakage barriers is by preventing that by the opening shutoff of the supercooling portion side end of the cylindrical portion of interior threaded part cold-producing medium is from cylindrical body internal leakage.

4) as above-mentioned 2) or 3) as described in condenser, the cylindrical body split ground of interior threaded part and the 1st catch box forms, and engages with cylindrical body.

5) as above-mentioned 2)～4) in condenser as described in any one, the heat exchange paths consisting of a plurality of heat-exchange tubes along arranging continuously up and down arranges more than three along being arranged above and below, on condensation part, be provided with at least two heat exchange paths that become condensation of refrigerant path that make condensation of refrigerant, in supercooling portion, be provided with and make overcooled at least one heat exchange paths that becomes cold-producing medium supercooling path of cold-producing medium, on the 1st catch box, be connected with the heat-exchange tube of the heat-exchange tube of cold-producing medium supercooling path and the condensation of refrigerant path in the downstream of flow of refrigerant direction, on the 2nd catch box, be connected with the heat-exchange tube of remaining condensation of refrigerant path, the cold-producing medium that has passed through condensation part flow in the 1st catch box from the heat-exchange tube of the condensation of refrigerant path of flow of refrigerant direction downstream.

6) as above-mentioned 5) as described in condenser, the mode that condensation part and supercooling portion are positioned at upside with condensation part arranges, in condensation part, cold-producing medium is mobile to the condensation of refrigerant path of lower end from the condensation of refrigerant path of upper end, in supercooling portion, be provided with a cold-producing medium supercooling path, after in whole condensation of refrigerant paths, mobile cold-producing medium flow in the 1st catch box, flow in the cylindrical portion of interior threaded part, then by cold-producing medium, by hole, flow in cold-producing medium free air space, then flow in the heat-exchange tube of cold-producing medium supercooling path.

7) as above-mentioned 5) as described in condenser, the mode that condensation part and supercooling portion are positioned at downside with condensation part arranges, in condensation part, cold-producing medium is mobile to the condensation of refrigerant path of upper end from the condensation of refrigerant path of lower end, in supercooling portion, be provided with a cold-producing medium supercooling path, ratio interior threaded part in the 1st catch box is by the part place of condensation part side, dispose one end and be positioned at the bottom of the 1st catch box and the cold-producing medium tedge that the other end is communicated with the cylindrical portion of interior threaded part, in whole condensation of refrigerant paths, mobile cold-producing medium flow in the 1st catch box, and the bottom in the 1st catch box enters in cold-producing medium tedge, in cold-producing medium tedge, to supercooling portion side flow, flow in the cylindrical portion of interior threaded part, then by cold-producing medium, by hole, flow in cold-producing medium free air space, then flow in the heat-exchange tube of cold-producing medium supercooling path.

8) as above-mentioned 2)～4) in condenser as described in any one, the heat exchange paths consisting of a plurality of heat-exchange tubes along arranging continuously up and down arranges more than two along being arranged above and below, on condensation part, be provided with at least one heat exchange paths that becomes condensation of refrigerant path that makes condensation of refrigerant, in supercooling portion, be provided with and make overcooled at least one heat exchange paths that becomes cold-producing medium supercooling path of cold-producing medium, on the 1st catch box, be connected with the heat-exchange tube of cold-producing medium supercooling path, on the 2nd catch box, be connected with the heat-exchange tube of condensation of refrigerant path, ratio interior threaded part in the 1st catch box leans on the part that the heat-exchange tube of the part of condensation part side and the condensation of refrigerant path of the flow of refrigerant direction downstream in the 2nd catch box leads to be communicated with via interconnecting part, the cold-producing medium that has passed through condensation part flow in the 2nd catch box, then by interconnecting part, flow in the 1st catch box.

9) as above-mentioned 8) as described in condenser, the mode that condensation part and supercooling portion are positioned at upside with condensation part arranges, in supercooling portion, be provided with a cold-producing medium supercooling path, in condensation of refrigerant path, mobile cold-producing medium flow in the 2nd catch box, then after flow into the 1st catch box by interconnecting part in, flow in the cylindrical portion of interior threaded part, then by cold-producing medium, by hole, flow in cold-producing medium free air space, then flow in the heat-exchange tube of cold-producing medium supercooling path.

10) as above-mentioned 8) as described in condenser, the mode that condensation part and supercooling portion are positioned at downside with condensation part arranges, in supercooling portion, be provided with a cold-producing medium supercooling path, ratio interior threaded part in the 1st catch box is by the part place of condensation part side, dispose one end and be positioned at the bottom of the 1st catch box and the cold-producing medium tedge that the other end is communicated with the cylindrical portion of interior threaded part, in condensation of refrigerant path, mobile cold-producing medium flow in the 2nd catch box, then by interconnecting part, flow in the 1st catch box, and the bottom in the 1st catch box enters in cold-producing medium tedge, in cold-producing medium tedge, to supercooling portion side flow, flow in the cylindrical portion of interior threaded part, then by cold-producing medium, by hole, flow in cold-producing medium free air space, then flow in the heat-exchange tube of cold-producing medium supercooling path.

11) as above-mentioned 7) or 10) as described in condenser, bottom in the externally threaded item of leakage-proof part, be and be fixedly provided with the closure of the lower ending opening shutoff of the cylindrical portion of interior threaded part shape, in this closure, be formed with through hole, the mode that the upper end of cold-producing medium tedge is communicated with through hole with the pipeline of cold-producing medium tedge is fixed in closure.

12) as above-mentioned 7) or 10) as described in condenser, bottom in the externally threaded item of leakage-proof part, can the mode around the center line rotation of the cylindrical portion of interior threaded part being provided with the closure of the lower ending opening shutoff of the cylindrical portion of interior threaded part with respect to externally threaded item, in this closure, be formed with through hole, the mode that the upper end of cold-producing medium tedge is communicated with through hole with the pipeline of cold-producing medium tedge is fixed in closure.

13) as above-mentioned 11) or 12) as described in condenser, condensation part side end in the externally threaded item of leakage-proof part is provided with filter, this filter, for removing the foreign matter that flow into the cold-producing medium in the cylindrical portion of interior threaded part from the side space, condensation part in the 1st catch box, is provided with closure in the bottom of filter.

The effect of utility model

According to above-mentioned 1)～13) condenser, the height and position corresponding with supercooling portion in the cylindrical body of the 1st catch box, be provided with at leakage-proof part to the interior threaded part utilizing in the mounting or dismounting of cylindrical body installation freely, on interior threaded part, be provided with cylindrical portion, this cylindrical portion makes length direction towards above-below direction, and one end towards the outside opening of the supercooling portion side of cylindrical body and the other end towards the part opening by the condensation part side in the 1st catch box than interior threaded part, the inner peripheral surface of cylindrical portion is barrel surface, and be formed with internal thread in this barrel surface, on leakage-proof part, to be provided with outer peripheral face be barrel surface and in this barrel surface, be formed with externally threaded cylindric externally threaded item, the external screw thread of the externally threaded item of leakage-proof part screws the internal thread of the interior threaded part that is embedded in cylindrical body, leakage-proof part mounting or dismounting are arranged in cylindrical body freely thus, between the inner peripheral surface of the part that the heat-exchange tube with supercooling portion in the cylindrical body of the 1st catch box is connected and the cylindrical portion outer peripheral face of interior threaded part, be formed with cold-producing medium free air space, give prominence in cold-producing medium free air space the end of the heat-exchange tube of supercooling portion, from side space, condensation part, flowing into the cold-producing medium of being in cooling end side space flow into the heat-exchange tube of supercooling portion via cold-producing medium free air space, therefore, part place in the supercooling portion side of the 1st catch box does not arrange the part more outstanding than the end of a side contrary to condensation part, leakage-proof part mounting or dismounting can be arranged in the cylindrical body of the 1st catch box freely, and can make the heat-exchange tube of supercooling portion be communicated with in the 1st catch box.Its result is to have improved and will have above-mentioned 1)～13) workability while packing automobile into of the air conditioning for automobiles of condenser.

According to above-mentioned 2) condenser, can be with fairly simple structure, between the inner peripheral surface of cylindrical body of the 1st catch box and the cylindrical portion outer peripheral face of interior threaded part, form cold-producing medium free air space, and make supercooling portion heat-exchange tube end with interior threaded part do not interfere to outstanding in cold-producing medium free air space.

According to above-mentioned 3) condenser, can prevent reliably that cold-producing medium is from the cylindrical body internal leakage of the 1st catch box.

According to above-mentioned 4) condenser, the supercooling portion side end in the cylindrical body of the 1st catch box arranges interior threaded part fairly simplely.

According to above-mentioned 6) and 9) condenser, even in the situation that dispose the drier storage member of having taken in drier in the 1st catch box, while changing drier storage member after packing air conditioning for automobiles into, also can carry out from below the replacing operation of drier storage member.Its result is to meet the requirement of the replacing operation of carrying out drier storage member from below.

According to above-mentioned 7) and 10) condenser, even in the situation that dispose the drier storage member of having taken in drier in the 1st catch box, while changing drier storage member after packing air conditioning for automobiles into, also can carry out from top the replacing operation of drier storage member.

According to above-mentioned 11) and 12) condenser, can make reliably in the upper end of cold-producing medium tedge and the cylindrical portion of interior threaded part to be communicated with.

According to above-mentioned 12) condenser, while screwing out from interior threaded part when the externally threaded item of leakage-proof part is screwed to the interior threaded part that is embedded in cylindrical body and by the externally threaded item of leakage-proof part, cold-producing medium tedge can not rotate together with externally threaded item, can successfully carry out above-mentioned operation.

According to above-mentioned 13) condenser, can in the bottom of externally threaded item, arrange the closure of the lower ending opening shutoff of the cylindrical portion of interior threaded part with fairly simple structure.

Accompanying drawing explanation

Fig. 1 means the integrally-built front view of the condenser of embodiment 1 of the present utility model.

Fig. 2 is the front view that schematically represents the condenser of embodiment 1 of the present utility model.

Fig. 3 be shown in the lower portion of the 1st catch box of the condenser of Fig. 1 is amplified, omitted a part of vertical sectional view.

Fig. 4 is the A-A line cutaway view of Fig. 3.

Fig. 5 is by the exploded perspective view shown in the lower portion amplification of the 1st catch box of the condenser of Fig. 1.

Fig. 6 is the front view that schematically represents the condenser of embodiment 2 of the present utility model.

Fig. 7 means the integrally-built front view of the condenser of embodiment 3 of the present utility model.

Fig. 8 is the front view that schematically represents the condenser of embodiment 3 of the present utility model.

Fig. 9 be shown in the upper portion of the 1st catch box of the condenser of Fig. 7 is amplified, omitted a part of vertical sectional view.

Figure 10 is the B-B line cutaway view of Fig. 9.

Figure 11 is by the exploded perspective view shown in the lower portion amplification of the 1st catch box of the condenser of Fig. 9

Figure 12 means figure variation, suitable with Fig. 9 of the leakage-proof part using in the condenser of embodiment 3 of the present utility model.

Figure 13 means the figure other variation, suitable with Fig. 9 of the leakage-proof part using in the condenser of embodiment 3 of the present utility model.

Figure 14 is the front view that schematically represents the condenser of embodiment 4 of the present utility model.Description of reference numerals

1,50,80: condenser

1A, 50A, 80A: condensation part

1B, 50B, 80B: supercooling portion

2: heat-exchange tube

3,51: the 1 catch boxs

4: the 2 catch boxs

5: the 3 catch boxs

18: cylindrical body

19,52,65,70: leakage-proof part

21: interior threaded part

22: cylindric portion

23: internal thread

24: cold-producing medium free air space

25,26: closure

27: cold-producing medium passes through hole

28: externally threaded item

29: external screw thread

31: leakage-proof part

33,70: filter

44,84: interconnecting part

53: cold-producing medium tedge

54,66: closure

55: through hole

74: lower end wall (closure)

P1: the 1st heat exchange paths

P2: the 2nd heat exchange paths

P3: the 3rd heat exchange paths

P4: the 4th heat exchange paths

The specific embodiment

Below, with reference to the accompanying drawings of embodiment of the present utility model.In addition, in whole accompanying drawings, to same section and same parts mark same reference numerals and the repetitive description thereof will be omitted.

In the illustrated embodiment, wind flows to paper table side (flowing to downside from the upside of Fig. 4 and Figure 10) from the paper dorsal part of Fig. 1 and Fig. 7.

In addition, in the following description, " aluminium " this term, except fine aluminium, also comprises aluminium alloy.

Embodiment 1

Present embodiment is as shown in Fig. 1～Fig. 5.Fig. 1 illustrates the overall structure of the condenser of embodiment 1 of the present utility model, and Fig. 2 schematically illustrates the condenser of embodiment 1 of the present utility model.In Fig. 2, omitted the diagram of each heat-exchange tube, and also omitted the diagram of corrugated fin, side plate, refrigerant inlet parts and refrigerant outlet parts.In addition, Fig. 3～Fig. 5 illustrates the structure of major part of the condenser of Fig. 1.

In Fig. 1, condenser 1 has: a plurality of aluminum flat heat exchange tubes 2, and it makes width frontage and airiness direction and length direction is configured to devices spaced apart along the vertical direction under the state of left and right directions; Three aluminum catch boxs 3,4,5, it configures length direction under the state of above-below direction, and by soldering, is connected state with the both ends, left and right of heat-exchange tube 2 and is connected; Aluminum corrugated fin 6, it is configured in adjacent heat-exchange tube 2 each other and the outside of the heat-exchange tube 2 at upper and lower two ends, and soldering is on heat-exchange tube 2; With aluminum side plate 7, it is configured in the outside of the corrugated fin 6 at upper and lower two ends, and soldering is on corrugated fin 6, and the mode that condensation part 1A and the 1B of supercooling portion are positioned at upside with the former arranges.

As shown in Figures 1 and 2, on condenser 1, along being arranged above and below, be provided with three above, four heat-exchange tube path P1, P2, P3, P4 that formed by a plurality of heat-exchange tubes 2 along arranging continuously up and down in this case.Four heat-exchange tube paths are called to the 1st～4th heat exchange paths P1, P2, P3, P4 in order from upper beginning.The flow of refrigerant direction of whole heat-exchange tubes 2 that forms each heat exchange paths P1, P2, P3, P4 is identical, and the flow of refrigerant direction of the heat-exchange tube 2 of two adjacent heat exchange paths is different.And the 1st～3rd heat exchange paths P1, P2, P3 are arranged on condensation part 1A above becomes condensation of refrigerant path, the 4th heat exchange paths P4 is arranged on the 1B of supercooling portion above becomes cold-producing medium supercooling path.

Left end side at condenser 1, be provided with to split the 1st catch box 3 and the 2nd catch box 4, wherein the 1st catch box 3 is connected with forming as the 4th heat exchange paths P4 of cold-producing medium supercooling path and as the heat-exchange tube 2 of the 3rd heat exchange paths P3 of the distolateral condensation of refrigerant path in flow of refrigerant direction downstream, the 2nd catch box 4 and the condensation of refrigerant path except the distolateral condensation of refrigerant path in flow of refrigerant direction downstream, i.e. the 1st and the 2nd heat exchange paths P1, the heat-exchange tube 2 of P2 connects, right-hand member side at condenser 1, be provided with the 3rd catch box 5 being connected with the whole heat-exchange tubes 2 that form the 1st～4th heat exchange paths P1～P4.The 1st catch box 3 to the 2 catch boxs 4 keep left right outside configuration, in this side configuration that keeps left, the upper end of the 1st catch box 3 is positioned at roughly sustained height than the top side in the lower end of the 2nd catch box 4 and with the upper end of the 2nd catch box 4, and the lower end of the 1st catch box 3 and downside side plate 7 are positioned at roughly sustained height.Part place below ratio the 2nd catch box 4 in the 1st catch box 3 is positioned at, is connected with the heat-exchange tube 2 of the 3rd and the 4th heat exchange paths P3, P4.

The 1st catch box 3 have utilize gravity to carry out gas-liquid separation and store liquid, as the function of liquid-storing part, flow in the gas-liquid mixed phase cold-producing medium in the 1st catch box 3, liquid phase main body mixed phase cold-producing medium is because gravity stores the bottom in the 1st catch box 3, and the gas phase composition in gas-liquid mixed phase cold-producing medium is because gravity stores the top in the 1st catch box 3.

In the 3rd catch box 5, by be arranged on the aluminum demarcation strip 8 of the height and position between the 1st heat exchange paths P1 and the 2nd heat exchange paths P2 and be arranged on the 3rd heat exchange paths P3 and the 4th heat exchange paths P4 between the aluminum demarcation strip 9 of height and position be divided into upside liquid collecting portion 11, middle liquid collecting portion 12 and downside liquid collecting portion 13.Therefore, the right part of the heat-exchange tube 2 of the 1st heat exchange paths P1 and 11 interior connections of upside liquid collecting portion, the right part of the heat-exchange tube 2 of the 2nd and the 3rd heat exchange paths P2, P3 and middle liquid collecting 32 interior connections of portion, the right part of the heat-exchange tube 2 of the 4th heat exchange paths P4 and 13 interior connections of downside liquid collecting portion.In the upside liquid collecting portion 11 of the 3rd catch box 5, be formed with refrigerant inlet 14, in downside liquid collecting portion 13, be formed with refrigerant outlet 15.And, on the 3rd catch box 5, engage and have the refrigerant inlet parts 16 that are communicated with refrigerant inlet 14 and the refrigerant outlet parts 17 that are communicated with refrigerant outlet 15.

The 1st catch box 3 comprises: have lid aluminum cylindrical body 18 cylindraceous and the mounting or dismounting of upper end (condensation part 1A side end) sealing and bottom (1B of supercooling portion side end) opening are arranged on freely the bottom of cylindrical body 18 and prevent that cold-producing medium is from synthetic resin system or the aluminum leakage-proof part 19 of cylindrical body 18 internal leakages.In the 1ACe space, condensation part of the 1st catch box 3, dispose the bag-shaped drier storage member 20 of having taken in drier.

As shown in Fig. 3～Fig. 5, the bottom in the cylindrical body 18 of the 1st catch box 3 and at the height and position corresponding with supercooling portion, be provided with by anticreep parts 19 to the aluminum interior threaded part 21 utilizing in the mounting or dismounting of cylindrical body 18 installation freely.Interior threaded part 21 forms with cylindrical body 18 splits, and engages with cylindrical body 18.Interior threaded part 21 has the cylindric portion 22 that makes length direction be barrel surface towards above-below direction and upper and lower both ends open and inner peripheral surface.The height and position of the upper end of the cylindric portion 22 of interior threaded part 21 between the 3rd heat exchange paths P3 and the 4th heat exchange paths P4, and the lower end of its lower end and cylindrical body 18 is positioned at sustained height position, thus, interior threaded part 21 is arranged in the whole altitude range of the 1B of supercooling portion.Bottom at the inner peripheral surface of cylindric portion 22 is formed with internal thread 23.

The external diameter of the cylindric portion 22 of interior threaded part 21 is less than the internal diameter of cylindrical body 18, between the inner peripheral surface of cylindrical body 18 of the 1st catch box 3 and the outer peripheral face of the cylindric portion 22 of interior threaded part 21, is formed with cold-producing medium free air space 24 within the scope of complete cycle.Upper end in the cylindric portion 22 of interior threaded part 21, be provided with integratedly the upper closure 25 that shape is stretched out in outside, on this, the height and position of closure 25 between the 3rd heat exchange paths P3 and the 4th heat exchange paths P4 and the soldering of periphery edge are on the inner peripheral surface of cylindrical body 18 and seal the upper end of cold-producing medium free air space 24.In addition, bottom in the cylindric portion 22 of interior threaded part 21, be provided with integratedly the lower closure 26 that shape is stretched out in outside, these lower closure 26 to the 4 heat-exchange tube path P4 are positioned at below and the soldering of periphery edge on the inner peripheral surface of cylindrical body 18 and seal the lower end of cold-producing medium free air space 24.The lower end of lower closure 26 is more outstanding downwards than cylindrical body 18, is provided with integratedly flange 26a toward the outer side outstanding to radial outside and that engage with the lower surface of cylindrical body 18 on this protuberance.And, whole heat-exchange tubes of the 1B of supercooling portion the left part of heat-exchange tube 2 of the 4th heat exchange paths P4 with the cylindrical body 18 of the 1st catch box 3 is connected and give prominence to cold-producing medium free air space 24.The left part of the heat-exchange tube 2 of the 4th heat exchange paths P4 is cut to do not interfere with the cylindric portion 22 of interior threaded part 21.Cut portion illustrates with Reference numeral 2a.The bottom of cut portion 2a is concave arc shape.

In 1ACe space, condensation part in the cylindrical body 18 of the 1st catch box 3 and the cylindric portion of interior threaded part 21 22, via the upper end open of cylindric portion 22, be communicated with.In addition, the part place of the ratio internal thread 23 top sides in the cylindric portion 22 of interior threaded part 21, is formed with along circumferentially spaced compartment of terrain and makes a plurality of cold-producing mediums that are communicated with cold-producing medium free air space 24 in cylindric portion 22 by hole 27.

On leakage-proof part 19, being provided with integratedly outer peripheral face is barrel surface and the cylindric externally threaded item 28 that is formed with external screw thread 29 in this barrel surface, the external screw thread 29 of the externally threaded item 28 of leakage-proof part 19 screws the internal thread 23 of the interior threaded part 21 that is embedded in cylindrical body 18, thus, leakage-proof part 19 mounting or dismounting are arranged in cylindrical body 18 freely.The lower end of externally threaded item 28 is more outstanding downwards than the cylindric portion 22 of interior threaded part 21, be provided with integratedly herein leakage barriers 31, this leakage barriers 31 is stretched out to radial outside, and be close to the lower surface of cylindric portion 22 and the lower surface of lower closure 26, thus, the lower ending opening of the cylindric portion 22 of shutoff interior threaded part 21 and prevent that cold-producing medium is from cylindrical body 18 internal leakages.The upper end of the externally threaded item 28 of leakage-proof part 19 is positioned at below than the cold-producing medium of the cylindric portion 22 of interior threaded part 21 by hole 27.In addition, the internal thread 23 in the inner peripheral surface of the two side portions up and down of the external screw thread 29 in the outer peripheral face of externally threaded item 28 and the cylindric portion 22 of interior threaded part 21 is airtight by O type ring 32 between two side portions up and down.

Upper end (condensation part side end) in the externally threaded item 28 of leakage-proof part 19, be and be fixedly provided with filter 33 shape, this filter 33 is for removing the foreign matter that flow into the cold-producing medium in the cylindric portion 22 of interior threaded part 21 from the 1ACe space, condensation part in the 1st catch box 3.Upper end in externally threaded item 28, be and project upwards the cylindrical portion 34 that shape ground is provided with upper end open integratedly, in cylindrical portion 34, along circumferentially spaced compartment of terrain, be formed with a plurality of through holes 35, mode with the whole through holes 35 of shutoff covers the inner peripheral surface of cylindrical portion 34 by netted filtration members 36, filter 33 is set thus.In the upper end of cylindrical portion 34, be provided with integratedly and connect airtight the 34a of portion, this connects airtight the 34a of portion and stretches out and be close to by hole 27 top sides' part with the ratio cold-producing medium in the inner peripheral surface of the cylindric portion 22 of interior threaded part 21 to radial outside.

By the 2nd catch box 4, the part being connected with heat-exchange tube 2 the 3rd heat exchange paths P3 in the 1st catch box 3, the upside liquid collecting portion 11 of the 3rd catch box 5 and middle liquid collecting portion 12, and the 1st～3rd heat exchange paths P1, P2, P3 and form the condensation part 1A that makes condensation of refrigerant, by the part being connected with heat-exchange tube 2 the 4th heat exchange paths P4 in the 1st catch box 3, the downside liquid collecting portion 13 of the 3rd catch box 5 and the 4th heat exchange paths P4 and form and make the overcooled supercooling 1B of portion of cold-producing medium, the 1st～3rd heat exchange paths P1, P2, P3 becomes the condensation of refrigerant path that makes condensation of refrigerant, and the 4th heat exchange paths P4 becomes makes the overcooled cold-producing medium supercooling of cold-producing medium path.

Condenser 1 forms kind of refrigeration cycle together with compressor, expansion valve (pressure reducer) and evaporimeter, and carries on vehicle as air conditioning for automobiles.

In the condenser 1 of said structure, the vapor phase refrigerant of the HTHP being compressed by compressor flow into by refrigerant inlet parts 16 and refrigerant inlet 14 in the upside liquid collecting portion 11 of the 3rd catch box 5, the heat-exchange tube 2 of the 1st heat exchange paths P1 interior to left, flow during be condensed and flow in the 2nd catch box 4.Flowing into cold-producing medium in the 2nd catch box 4 is condensed during mobile and flow in the middle liquid collecting portion 12 of the 3rd catch box 5 to right-hand the heat-exchange tube 2 of the 2nd heat exchange paths P2 is interior.Flow into cold-producing medium in the middle liquid collecting portion 12 of the 3rd catch box 5 the heat-exchange tube 2 of the 3rd heat exchange paths P3 interior to left, flow during be condensed and flow in the 1st catch box 3, by contacting with the drier in drier storage member 20 moisture of removing in cold-producing medium.

The cold-producing medium flowing in the 1st catch box 3 is gas-liquid mixed phase cold-producing medium, and the liquid phase main body cold-producing medium in this gas-liquid mixed phase cold-producing medium flows downwards due to gravity, and the upper end open of the cylindric portion 22 by interior threaded part 21 flow in cylindric portion 22.On the other hand, the vapor phase refrigerant flowing in the gas-liquid mixed phase cold-producing medium in the 1st catch box 3 stores the top in the 1st catch box 3.Flow into liquid phase main body cold-producing medium in the cylindric portion 22 of interior threaded part 21 upper end open by the cylindrical portion 34 of filter 33 and flow in cylindrical portion 34, then by through hole 35, from cylindrical portion 34, flow out.The in the situation that of containing foreign matter in liquid phase main body cold-producing medium, this foreign matter is filtered part 36 and removes.

The liquid phase main body cold-producing medium flowing out from the cylindrical portion 34 of filter 33 flow in cold-producing medium free air space 24 by hole 27 by the cold-producing medium of cylindric portion 22, thereby enters in the heat-exchange tube 2 of the 4th heat exchange paths P4.Enter into liquid phase main body cold-producing medium in the heat-exchange tube 2 of the 4th heat exchange paths P4 the heat-exchange tube 2 of the 4th heat exchange paths P4 interior to right-hand mobile during by supercooling, then enter in the downside liquid collecting portion 13 of the 3rd catch box 5, by refrigerant outlet and refrigerant outlet parts 35, flow out, and be transported to evaporimeter via expansion valve.

Embodiment 2

Present embodiment as shown in Figure 6.Fig. 6 schematically illustrates the overall structure of the condenser of embodiment 2 of the present utility model, has omitted the diagram of each heat-exchange tube, and has also omitted the diagram of corrugated fin, side plate, refrigerant inlet parts and refrigerant outlet parts.

In Fig. 6, on condenser 40, the mode that condensation part 40A and the 40B of supercooling portion are positioned at upside with the former arranges, on condensation part 40A and the 40B of supercooling portion, be respectively equipped with at least one that formed by a plurality of heat-exchange tubes 2 along arranging continuously up and down, in this case heat exchange paths P1, a P2.The heat exchange paths P1 being arranged on the 40A of condensation part becomes condensation of refrigerant path, and the heat exchange paths P2 being arranged on the 40B of supercooling portion becomes cold-producing medium supercooling path.And the flow of refrigerant direction of whole heat-exchange tubes 2 that forms each heat exchange paths P1, P2 is identical, and the flow of refrigerant direction of the heat-exchange tube 2 of two adjacent heat exchange paths is different.At this, the heat exchange paths P1 of condensation part 40A is called to the 1st heat exchange paths, the heat exchange paths P2 of the 40B of supercooling portion is called to the 2nd heat exchange paths.

Left end side at condenser 40, be provided with to split and form cold-producing medium supercooling path the 1st catch box 3 that heat-exchange tube 2 of the 2nd heat exchange paths P2 is connected and be the 2nd catch box 4 that the heat-exchange tube 2 of the 1st heat exchange paths P1 is connected with forming condensation of refrigerant path, in the right-hand member side of condenser 40, be provided with the 3rd catch box 5 being connected with the whole heat-exchange tubes 2 that form the 1st and the 2nd heat exchange paths P1, P2.

The 1st catch box 3 to the 2 catch boxs 4 keep left right outside configuration, in this side configuration that keeps left, the upper end of the 1st catch box 3 is positioned at roughly sustained height than the top side in the lower end of the 2nd catch box 4 and with the upper end of the 2nd catch box 4, and the lower end of the 1st catch box 41 is positioned at than the lower end of the 2nd catch box 4 height on the lower.Part place below ratio the 2nd catch box 4 in the 1st catch box 3 is positioned at, is connected with the heat-exchange tube 2 of the 2nd heat exchange paths P2.

In the 3rd catch box 5, by being arranged on the aluminum demarcation strip 41 of the height and position between the 1st heat exchange paths P1 and the 2nd heat exchange paths P2, be divided into upside liquid collecting portion 42 and downside liquid collecting portion 43.Therefore, the right part of the heat-exchange tube 2 of the 1st heat exchange paths P1 and 42 interior connections of upside liquid collecting portion, the right part of the heat-exchange tube 2 of the 2nd heat exchange paths P2 and 43 interior connections of downside liquid collecting portion.In the upside liquid collecting portion 11 of the 3rd catch box 5, be formed with refrigerant inlet 14, in downside liquid collecting portion 13, be formed with refrigerant outlet 15.And, on the 3rd catch box 5, engage and have the refrigerant inlet parts (omitting diagram) that are communicated with refrigerant inlet 14 and the refrigerant outlet parts (omitting diagram) that are communicated with refrigerant outlet 15.

Part place below ratio the 2nd catch box 4 in the 1st catch box 3 is positioned at, the i.e. height and position corresponding with the 40B of supercooling portion, be provided with at anticreep parts 19 to the aluminum interior threaded part 21 utilizing in the mounting or dismounting of cylindrical body 18 installation freely.

40ACe space, condensation part in the 1st catch box 3, than the bottom in interior threaded part 21 top sides' space, via interconnecting part 44, be communicated with bottom in the 2nd catch box 4, the part of leading to as the heat-exchange tube 2 of the 1st heat exchange paths P1 of condensation of refrigerant path.In addition, in the 40ACe space, condensation part in the 1st catch box 3, dispose drier storage member 20.

Upside liquid collecting portion 42 and the 1st heat exchange paths P1 by the 2nd catch box the 4, the 3rd catch box 5 form the condensation part 40A that makes condensation of refrigerant, downside liquid collecting portion 43 by the 1st catch box the 3, the 3rd catch box 5 and the 2nd heat exchange paths P2 form and make the overcooled supercooling 40B of portion of cold-producing medium, the 1st heat exchange paths P1 becomes the condensation of refrigerant path that makes condensation of refrigerant, and the 2nd heat exchange paths P2 becomes and makes the overcooled cold-producing medium supercooling of cold-producing medium path.

In the condenser 40 of said structure, the vapor phase refrigerant of the HTHP being compressed by compressor flow into by refrigerant inlet parts and refrigerant inlet 14 in the upside liquid collecting portion 42 of the 3rd catch box 5, the heat-exchange tube 2 of the 1st heat exchange paths P1 interior to left, flow during be condensed and flow in the 2nd catch box 4.The cold-producing medium flowing in the 2nd catch box 4 flow in the 1st catch box 3 by interconnecting part 44.

The cold-producing medium flowing in the 1st catch box 3 is gas-liquid mixed phase cold-producing medium, liquid phase main body cold-producing medium in this gas-liquid mixed phase cold-producing medium flows downwards due to gravity, with the situation of the condenser 1 of above-mentioned embodiment 1 similarly, enter in the heat-exchange tube 2 of the 2nd heat exchange paths P2.Enter into liquid phase main body cold-producing medium in the heat-exchange tube 2 of the 2nd heat exchange paths P2 the heat-exchange tube 2 of the 2nd heat exchange paths P2 interior to right-hand mobile during by supercooling, then enter in the downside liquid collecting portion 43 of the 3rd catch box 5, by refrigerant outlet 15 and refrigerant outlet parts, flow out, and be transported to evaporimeter via expansion valve.

On the other hand, the vapor phase refrigerant flowing in the gas-liquid mixed phase cold-producing medium in the 1st catch box 3 stores the top in the 1st catch box 3.

Embodiment 3

Present embodiment is as shown in Fig. 7～Figure 11.Fig. 7 illustrates the overall structure of the condenser of embodiment 3 of the present utility model, and Fig. 8 schematically illustrates the condenser of embodiment 3 of the present utility model.In Fig. 8, omitted the diagram of each heat-exchange tube, and also omitted the diagram of corrugated fin, side plate, refrigerant inlet parts and refrigerant outlet parts.In addition, Fig. 9～11 illustrate the structure of major part of the condenser of Fig. 7.

In Fig. 7 and Fig. 8, on condenser 50, the mode that condensation part 50A and the 50B of supercooling portion are positioned at downside with the former arranges.On condenser 50, along being arranged above and below, be provided with four heat-exchange tube path P1, P2, P3, P4 that formed by a plurality of heat-exchange tubes 2 along arranging continuously up and down.Four heat-exchange tube paths are called to the 1st～4th heat exchange paths P1, P2, P3, P4 in order from lower beginning.The flow of refrigerant direction of whole heat-exchange tubes 2 that forms each heat exchange paths P1, P2, P3, P4 is identical, and the flow of refrigerant direction of the heat-exchange tube 2 of two adjacent heat exchange paths is different.And the 1st～3rd heat exchange paths P1, P2, P3 are arranged on condensation part 50A above becomes condensation of refrigerant path, the 4th heat exchange paths P4 is arranged on the 50B of supercooling portion above becomes cold-producing medium supercooling path.

Left end side at condenser 50, be provided with to split the 1st catch box 51 and the 2nd catch box 4, wherein the 1st catch box 51 is connected with forming as the 4th heat exchange paths P4 of cold-producing medium supercooling path and as the heat-exchange tube 2 of the 3rd heat exchange paths P3 of the distolateral condensation of refrigerant path in flow of refrigerant direction downstream, the 2nd catch box 4 and the condensation of refrigerant path except the distolateral condensation of refrigerant path in flow of refrigerant direction downstream, i.e. the 1st and the 2nd heat exchange paths P1, the heat-exchange tube 2 of P2 connects, right-hand member side at condenser 50, be provided with the 3rd catch box 5 being connected with the whole heat-exchange tubes 2 that form the 1st～4th heat exchange paths P1～P4.The 1st catch box 51 to the 2 catch boxs 4 keep left right outside configuration, in this side configuration that keeps left, the upper end of the 1st catch box 51 is positioned at roughly sustained height than the top side in the upper end of the 2nd catch box 4 and with upside side plate 7, and the lower end of the lower end of the 1st catch box 51 and the 2nd catch box 4 is positioned at roughly sustained height.Part place above ratio the 2nd catch box 4 in the 1st catch box 51 is positioned at, is connected with the heat-exchange tube 2 of the 3rd and the 4th heat exchange paths P3, P4 by soldering.

The 1st catch box 51 have utilize gravity to carry out gas-liquid separation and store liquid, as the function of liquid-storing part, flow in the gas-liquid mixed phase cold-producing medium in the 1st catch box 51, liquid phase main body mixed phase cold-producing medium is because gravity stores the bottom in the 1st catch box 51, and the gas phase composition in gas-liquid mixed phase cold-producing medium is because gravity stores the top in the 1st catch box 51.

In the 3rd catch box 5, by be arranged on the aluminum demarcation strip 57 of the height and position between the 1st heat exchange paths P1 and the 2nd heat exchange paths P2 and be arranged on the 3rd heat exchange paths P3 and the 4th heat exchange paths P4 between the aluminum demarcation strip 58 of height and position be divided into downside liquid collecting portion 59, middle liquid collecting portion 61 and upside liquid collecting portion 62.The right part of the heat-exchange tube 2 of the 1st heat exchange paths P1 and 59 interior connections of downside liquid collecting portion, the right part of the heat-exchange tube 2 of the 2nd and the 3rd heat exchange paths P2, P3 and middle liquid collecting 61 interior connections of portion, the right part of the heat-exchange tube 2 of the 4th heat exchange paths P4 and 62 interior connections of upside liquid collecting portion.In the downside liquid collecting portion 59 of the 3rd catch box 5, be formed with refrigerant inlet 14, in the upside liquid collecting portion 62 of the 3rd catch box 5, be formed with refrigerant outlet 15.And, on the 3rd catch box 5, engage and have the refrigerant inlet parts 16 that are communicated with refrigerant inlet 14 and the refrigerant outlet parts 17 that are communicated with refrigerant outlet 15.

The 1st catch box 51 comprises: aluminum cylindrical body 18, it is that the cylindrical body of the condenser of above-mentioned embodiment 11 18 is oppositely configured and formed up and down, and is the bottom tube-like that has of bottom (condensation part 50A side end) sealing and upper end (50B of supercooling portion side end) opening; Be arranged on freely the upper end of cylindrical body 18 with mounting or dismounting and prevent synthetic resin system or the aluminum leakage-proof part 52 that cold-producing medium leaks from cylindrical body 18.In the 1ACe space, condensation part of the 1st catch box 3, dispose the bag-shaped drier storage member 20 of having taken in drier.

As shown in Fig. 9～Figure 11, the top in the cylindrical body 18 of the 1st catch box 3 and at the height and position corresponding with the 50B of supercooling portion, is provided with at anticreep parts 52 to the aluminum interior threaded part 21 utilizing in the mounting or dismounting of cylindrical body 18 installation freely.Interior threaded part 21 be same structure with the interior threaded part 21 of the condenser 1 of above-mentioned embodiment 1, oppositely configures up and down and engages with cylindrical body 18 by soldering with the situation of the condenser 1 of embodiment 1.

In the 50ACe space, condensation part of the 1st catch box 51, dispose one end and be positioned at the bottom of the 1st catch box 51 and the cold-producing medium tedge 53 that the other end is communicated with the cylindric portion 22 of interior threaded part 21.Cold-producing medium tedge 53 configures to avoid the mode of drier storage member 20.

The leakage-proof part 19 of leakage-proof part 52 and the condenser 1 of above-mentioned embodiment 1 is roughly the same structure, oppositely configures up and down and is arranged on interior threaded part 21 with the situation of the condenser 1 of embodiment 1.

Leakage-proof part 52 is as follows with the difference of leakage-proof part 19.; bottom in the cylindrical portion 34 of filter 33; be provided with integratedly the closure 54 of the lower ending opening shutoff of the cylindric portion 22 of interior threaded part 21; in closure 54, be formed with through hole 55, the upper end of cold-producing medium tedge 53 is fixed in closure 54 with the pipeline of cold-producing medium tedge 53 and the mode of through hole 55 connections.The inner peripheral surface of the periphery edge of closure 54 and the cylindric portion 22 of interior threaded part 21 is close to, and thus, the lower ending opening of cylindric portion 22 is by shutoff.On the lower surface of closure 54, to be provided with integratedly short cylindrical portion 56 around through hole 55 mode around, chimeric the covering around short cylindrical portion 56 in upper end of cold-producing medium tedge 53, thus, the upper end of cold-producing medium tedge 53 is fixed in closure 54.

By the 2nd catch box 4, the part being connected with heat-exchange tube 2 the 3rd heat exchange paths P3 in the 1st catch box 51, the downside liquid collecting portion 59 of the 3rd catch box 5 and middle liquid collecting portion 61, and the 1st～3rd heat exchange paths P1, P2, P3 and form the condensation part 50A that makes condensation of refrigerant, by the part being connected with heat-exchange tube 2 the 4th heat exchange paths P4 in the 1st catch box 51, the upside liquid collecting portion 62 of the 3rd catch box 5 and the 4th heat exchange paths P4 and form and make the overcooled supercooling 50B of portion of cold-producing medium, the 1st～3rd heat exchange paths P1, P2, P3 becomes the condensation of refrigerant path that makes condensation of refrigerant, and the 4th heat exchange paths P4 becomes makes the overcooled cold-producing medium supercooling of cold-producing medium path.

In the condenser 50 of said structure, the vapor phase refrigerant of the HTHP being compressed by compressor flow into by refrigerant inlet parts 16 and refrigerant inlet 14 in the downside liquid collecting portion 59 of the 3rd catch box 5, the heat-exchange tube 2 of the 1st heat exchange paths P1 interior to left, flow during be condensed and flow in the 2nd catch box 4.Flowing into cold-producing medium in the 2nd catch box 4 is condensed during mobile and flow in the middle liquid collecting portion 61 of the 3rd catch box 5 to right-hand the heat-exchange tube 2 of the 2nd heat exchange paths P2 is interior.Flow into cold-producing medium in the middle liquid collecting portion 61 of the 3rd catch box 5 the heat-exchange tube 2 of the 3rd heat exchange paths P3 interior to left, flow during be condensed and flow in the 1st catch box 51, by contacting with the drier in drier storage member 20 moisture of removing in cold-producing medium.

The cold-producing medium flowing in the 1st catch box 3 is gas-liquid mixed phase cold-producing medium, liquid phase main body cold-producing medium in this gas-liquid mixed phase cold-producing medium flows downwards due to gravity, and store the bottom in the 1st catch box 51, similarly, the vapor phase refrigerant in gas-liquid mixed phase cold-producing medium stores the top in the 1st catch box 51.

The liquid phase main body cold-producing medium that stores the bottom in the 1st catch box 51 flow in cold-producing medium tedge 53, flows upward, and flow in the cylindric portion 22 of interior threaded part 21 by the through hole 55 of closure 54 in cold-producing medium tedge 53.Flow into liquid phase main body cold-producing medium in the cylindric portion 22 of interior threaded part 21 and above-mentioned embodiment 1 condenser 1 situation similarly, enter in the heat-exchange tube 2 of the 4th heat exchange paths P4, the heat-exchange tube 2 of the 4th heat exchange paths P4 interior to right-hand mobile during by supercooling, then enter in the upside liquid collecting portion 62 of the 3rd catch box 5, by refrigerant outlet 15 and refrigerant outlet parts 17, flow out, and be transported to evaporimeter via expansion valve.

Figure 12 and Figure 13 are illustrated in the variation of the leakage-proof part using in the condenser 50 of embodiment 3.

In the situation that the leakage-proof part 65 shown in Figure 12, the outer peripheral edges of the closure 66 arranging integratedly with the bottom of the cylindrical portion 34 of filter 33 are not close to the inner peripheral surface of the cylindric portion 22 of interior threaded part 21, airtight by O type ring 67 between the inner peripheral surface of the cylindric portion 22 of the outer peripheral face of closure 66 and interior threaded part 21, thus, the lower ending opening of the cylindric portion 22 of interior threaded part 21 is closed.Other structures are identical with the leakage-proof part 52 of embodiment 3.

In the situation that the leakage-proof part 70 shown in Figure 13, at the downside of externally threaded item 28, be provided with filter 71, this filter 71 forms and the center line rotation around the cylindric portion 22 of interior threaded part 21 with respect to externally threaded item 28 with interior threaded part 28 splits ground.

Filter 71 has: make length direction towards the synthetic resin cylindrical portion 72 processed of above-below direction; Form with the upper end of cylindrical portion 72 and the upper end wall 73 of the upper end open of closed cylinder portion 72; Form with lower end with cylindrical portion 72 and the lower end wall 74 of the lower ending opening of closed cylinder portion 72, in cylindrical portion 72, along circumferentially spaced compartment of terrain, be formed with a plurality of through holes 75, in the mode of the whole through holes 75 of shutoff, by netted filtration members 36, cover the inner peripheral surface of cylindrical portion 72.Stretch out to radial outside than the outer peripheral face of cylindrical portion 72 the periphery edge of the lower end wall 74 of filter 71, and this outside extension 74a is bearing on the inner side extension 22a that the bottom with the cylindric portion 22 of interior threaded part 21 arranges integratedly.And the lower end wall 74 of filter 71 becomes the closure of the lower ending opening sealing of the cylindric portion 22 of interior threaded part 21.Therefore, closure can the center line rotation around the cylindric portion 22 of interior threaded part 21 with respect to externally threaded item 28.Other structures are identical with the leakage-proof part 52 of embodiment 3.

Embodiment 4

Present embodiment as shown in figure 14.Figure 14 schematically illustrates the overall structure of the condenser of embodiment 4 of the present utility model.Omit the diagram of each heat-exchange tube, and also omitted the diagram of corrugated fin, side plate, refrigerant inlet parts and refrigerant outlet parts.

In Figure 14, on condenser 80, the mode that condensation part 80A and the 80B of supercooling portion are positioned at downside with the former arranges, on condensation part 80A and the 80B of supercooling portion, be respectively equipped with at least one that formed by a plurality of heat-exchange tubes 2 along arranging continuously up and down, in this case heat exchange paths P1, a P2.The heat exchange paths P1 being arranged on the 80A of condensation part becomes condensation of refrigerant path, and the heat exchange paths P2 being arranged on the 80B of supercooling portion becomes cold-producing medium supercooling path.And the flow of refrigerant direction of whole heat-exchange tubes 2 that forms each heat exchange paths P1, P2 is identical, and the flow of refrigerant direction of the heat-exchange tube 2 of two adjacent heat exchange paths is different.At this, the heat exchange paths P1 of condensation part 80A is called to the 1st heat exchange paths, the heat exchange paths P2 of the 80B of supercooling portion is called to the 2nd heat exchange paths.

Left end side at condenser 80, be provided with to split and form cold-producing medium supercooling path the 1st catch box 51 that heat-exchange tube 2 of the 2nd heat exchange paths P2 is connected and be the 2nd catch box 4 that the heat-exchange tube 2 of the 1st heat exchange paths P1 is connected with forming condensation of refrigerant path, in the right-hand member side of condenser 80, be provided with the 3rd catch box 5 being connected with the whole heat-exchange tubes 2 that form the 1st and the 2nd heat exchange paths P1, P2.

The 1st catch box 51 to the 2 catch boxs 4 keep left right outside configuration, in this side configuration that keeps left, above the upper end of the 1st catch box 51 is positioned at than the upper end of the 2nd catch box 4, the lower end of the lower end of the 1st catch box 51 and the 2nd catch box 4 is positioned at roughly sustained height.Part place above ratio the 2nd catch box 4 in the 1st catch box 51 is positioned at, is connected with the heat-exchange tube 2 of the 2nd heat exchange paths P2.

In the 3rd catch box 5, by being arranged on the aluminum demarcation strip 81 of the height and position between the 1st heat exchange paths P1 and the 2nd heat exchange paths P2, be divided into downside liquid collecting portion 82 and upside liquid collecting portion 83.Therefore, the right part of the heat-exchange tube 2 of the 1st heat exchange paths P1 and 82 interior connections of downside liquid collecting portion, the right part of the heat-exchange tube 2 of the 2nd heat exchange paths P2 and 83 interior connections of upside liquid collecting portion.In the downside liquid collecting portion 82 of the 3rd catch box 5, be formed with refrigerant inlet 14, in upside liquid collecting portion 83, be formed with refrigerant outlet 15.And, on the 3rd catch box 5, engage and have the refrigerant inlet parts (omitting diagram) that are communicated with refrigerant inlet 14 and the refrigerant outlet parts (omitting diagram) that are communicated with refrigerant outlet 15.

Part place above ratio the 2nd catch box 4 in the 1st catch box 51 is positioned at, the i.e. height and position corresponding with the 80B of supercooling portion, be provided with at anticreep parts 52 to the aluminum interior threaded part 21 utilizing in the mounting or dismounting of cylindrical body 18 installation freely.

80ACe space, condensation part in the 1st catch box 51, than the upper end in interior threaded part 21 space on the lower, via interconnecting part 84, be communicated with upper end in the 2nd catch box 4, the part of leading to as the heat-exchange tube 2 of the 1st heat exchange paths P1 of condensation of refrigerant path.In addition, in the 80ACe space, condensation part in the 1st catch box 51, dispose drier storage member 20.

Downside liquid collecting portion 82 and the 1st heat exchange paths P1 by the 2nd catch box the 4, the 3rd catch box 5 form the condensation part 80A that makes condensation of refrigerant, upside liquid collecting portion 83 by the 1st catch box the 51, the 3rd catch box 5 and the 2nd heat exchange paths P2 form and make the overcooled supercooling 80B of portion of cold-producing medium, the 1st heat exchange paths P1 becomes the condensation of refrigerant path that makes condensation of refrigerant, and the 2nd heat exchange paths P2 becomes and makes the overcooled cold-producing medium supercooling of cold-producing medium path.

In the condenser 80 of said structure, the vapor phase refrigerant of the HTHP being compressed by compressor flow into by refrigerant inlet parts and refrigerant inlet 14 in the downside liquid collecting portion 82 of the 3rd catch box 5, the heat-exchange tube 2 of the 1st heat exchange paths P1 interior to left, flow during be condensed and flow in the 2nd catch box 4.The cold-producing medium flowing in the 2nd catch box 4 flow in the 1st catch box 51 by interconnecting part 84.

The cold-producing medium flowing in the 1st catch box 51 is gas-liquid mixed phase cold-producing medium, liquid phase main body cold-producing medium in this gas-liquid mixed phase cold-producing medium flows downwards due to gravity, and store the bottom in the 1st catch box 51, similarly, the vapor phase refrigerant in gas-liquid mixed phase cold-producing medium stores the top in the 1st catch box 51.

The liquid phase main body cold-producing medium that stores the bottom in the 1st catch box 51 flow in cold-producing medium tedge 53, flows upward and the through hole 55 by closure 54 flow in the cylindric portion 22 of interior threaded part 21 in cold-producing medium tedge 53.Flow into liquid phase main body cold-producing medium in the cylindric portion 22 of interior threaded part 21 and above-mentioned embodiment 1 condenser 1 situation similarly, enter in the heat-exchange tube 2 of the 2nd heat exchange paths P2, the heat-exchange tube 2 of the 2nd heat exchange paths P2 interior to right-hand mobile during by supercooling, then enter in the upside liquid collecting portion 83 of the 3rd catch box 5, by refrigerant outlet 15 and refrigerant outlet parts, flow out, and be transported to evaporimeter via expansion valve.

In above-mentioned embodiment 4, as leakage-proof part, can use the leakage-proof part 65,70 shown in Figure 12 and Figure 13.

Industrial applicibility

Condenser of the present utility model is preferably applicable to carry the air conditioning for automobiles on automobile.

Claims

1. a condenser, condensation part and supercooling portion arrange along being arranged above and below, this condenser has: make length direction towards left and right directions and be configured to devices spaced apart along the vertical direction a plurality of heat-exchange tubes of shape arranged side by side, with make length direction towards above-below direction the catch box that configures and be connected with the both ends, left and right of heat-exchange tube, the a certain end side in left and right, be provided with the 1st catch box that is connected and has the function of carrying out gas-liquid separation and storing liquid with the heat-exchange tube of supercooling portion, with the 2nd catch box that is configured in the left and right directions inner side of the 1st catch box, the condensation part side end of the 1st catch box cross the 2nd catch box supercooling portion side one end and to another distolateral extension of the 2nd catch box, the 1st catch box comprises: the cylindrical body of the sealing of condensation part side end and supercooling portion side end opening, be arranged on freely the supercooling portion side end of cylindrical body with mounting or dismounting and prevent that cold-producing medium is from the leakage-proof part of the opening leakage of the supercooling portion side end of cylindrical body, the heat-exchange tube of supercooling portion is connected with the 1st catch box to outstanding mode in the cylindrical body of the 1st catch box with end, the cold-producing medium that has passed through condensation part flow in the heat-exchange tube of supercooling portion after in flowing into the 1st catch box, described condenser is characterised in that

2. condenser as claimed in claim 1, it is characterized in that, between the inner peripheral surface of cylindrical body and the cylindrical portion outer peripheral face of interior threaded part of the 1st catch box, within the scope of complete cycle, be formed with cold-producing medium free air space, interior threaded part is arranged in the whole altitude range of supercooling portion, both ends up and down in the cylindrical portion of interior threaded part are provided with closure, this closure is stretched out laterally and the inner peripheral surface of periphery edge and cylindrical body is close to, the two ends up and down of shutoff cold-producing medium free air space thus, via the opening of the condensation part side end of this cylindrical portion, be communicated with in the space of condensation part side in the 1st catch box and the cylindrical portion of interior threaded part, in the cylindrical portion of interior threaded part, be formed with and make the cold-producing medium being communicated with cold-producing medium free air space in this cylindrical portion pass through hole.

3. condenser as claimed in claim 2, is characterized in that, the externally threaded item of leakage-proof part has leakage barriers, and this leakage barriers is by preventing that by the opening shutoff of the supercooling portion side end of the cylindrical portion of interior threaded part cold-producing medium is from cylindrical body internal leakage.

4. condenser as claimed in claim 2 or claim 3, is characterized in that, the cylindrical body split ground of interior threaded part and the 1st catch box forms, and engages with cylindrical body.

5. condenser as claimed in claim 2 or claim 3, it is characterized in that, the heat exchange paths consisting of a plurality of heat-exchange tubes along arranging continuously up and down arranges more than three along being arranged above and below, on condensation part, be provided with at least two heat exchange paths that become condensation of refrigerant path that make condensation of refrigerant, in supercooling portion, be provided with and make overcooled at least one heat exchange paths that becomes cold-producing medium supercooling path of cold-producing medium, on the 1st catch box, be connected with the heat-exchange tube of the heat-exchange tube of cold-producing medium supercooling path and the condensation of refrigerant path in the downstream of flow of refrigerant direction, on the 2nd catch box, be connected with the heat-exchange tube of remaining condensation of refrigerant path, the cold-producing medium that has passed through condensation part flow in the 1st catch box from the heat-exchange tube of the condensation of refrigerant path of flow of refrigerant direction downstream.

6. condenser as claimed in claim 5, it is characterized in that, the mode that condensation part and supercooling portion are positioned at upside with condensation part arranges, in condensation part, cold-producing medium is mobile to the condensation of refrigerant path of lower end from the condensation of refrigerant path of upper end, in supercooling portion, be provided with a cold-producing medium supercooling path, after in whole condensation of refrigerant paths, mobile cold-producing medium flow in the 1st catch box, flow in the cylindrical portion of interior threaded part, then by cold-producing medium, by hole, flow in cold-producing medium free air space, then flow in the heat-exchange tube of cold-producing medium supercooling path.

7. condenser as claimed in claim 5, it is characterized in that, the mode that condensation part and supercooling portion are positioned at downside with condensation part arranges, in condensation part, cold-producing medium is mobile to the condensation of refrigerant path of upper end from the condensation of refrigerant path of lower end, in supercooling portion, be provided with a cold-producing medium supercooling path, ratio interior threaded part in the 1st catch box is by the part place of condensation part side, dispose one end and be positioned at the bottom of the 1st catch box and the cold-producing medium tedge that the other end is communicated with the cylindrical portion of interior threaded part, in whole condensation of refrigerant paths, mobile cold-producing medium flow in the 1st catch box, and the bottom in the 1st catch box enters in cold-producing medium tedge, in cold-producing medium tedge, to supercooling portion side flow, flow in the cylindrical portion of interior threaded part, then by cold-producing medium, by hole, flow in cold-producing medium free air space, then flow in the heat-exchange tube of cold-producing medium supercooling path.

8. condenser as claimed in claim 2 or claim 3, it is characterized in that, the heat exchange paths consisting of a plurality of heat-exchange tubes along arranging continuously up and down arranges more than two along being arranged above and below, on condensation part, be provided with at least one heat exchange paths that becomes condensation of refrigerant path that makes condensation of refrigerant, in supercooling portion, be provided with and make overcooled at least one heat exchange paths that becomes cold-producing medium supercooling path of cold-producing medium, on the 1st catch box, be connected with the heat-exchange tube of cold-producing medium supercooling path, on the 2nd catch box, be connected with the heat-exchange tube of condensation of refrigerant path, ratio interior threaded part in the 1st catch box leans on the part that the heat-exchange tube of the part of condensation part side and the condensation of refrigerant path of the flow of refrigerant direction downstream in the 2nd catch box leads to be communicated with via interconnecting part, the cold-producing medium that has passed through condensation part flow in the 2nd catch box, then by interconnecting part, flow in the 1st catch box.

9. condenser as claimed in claim 8, it is characterized in that, the mode that condensation part and supercooling portion are positioned at upside with condensation part arranges, in supercooling portion, be provided with a cold-producing medium supercooling path, in condensation of refrigerant path, mobile cold-producing medium flow in the 2nd catch box, then after flow into the 1st catch box by interconnecting part in, flow in the cylindrical portion of interior threaded part, then by cold-producing medium, by hole, flow in cold-producing medium free air space, then flow in the heat-exchange tube of cold-producing medium supercooling path.

10. condenser as claimed in claim 8, it is characterized in that, the mode that condensation part and supercooling portion are positioned at downside with condensation part arranges, in supercooling portion, be provided with a cold-producing medium supercooling path, ratio interior threaded part in the 1st catch box is by the part place of condensation part side, dispose one end and be positioned at the bottom of the 1st catch box and the cold-producing medium tedge that the other end is communicated with the cylindrical portion of interior threaded part, in condensation of refrigerant path, mobile cold-producing medium flow in the 2nd catch box, then by interconnecting part, flow in the 1st catch box, and the bottom in the 1st catch box enters in cold-producing medium tedge, in cold-producing medium tedge, to supercooling portion side flow, flow in the cylindrical portion of interior threaded part, then by cold-producing medium, by hole, flow in cold-producing medium free air space, then flow in the heat-exchange tube of cold-producing medium supercooling path.

11. condensers as described in claim 7 or 10, it is characterized in that, bottom in the externally threaded item of leakage-proof part, be and be fixedly provided with the closure of the lower ending opening shutoff of the cylindrical portion of interior threaded part shape, in this closure, be formed with through hole, the mode that the upper end of cold-producing medium tedge is communicated with through hole with the pipeline of cold-producing medium tedge is fixed in closure.

12. condensers as described in claim 7 or 10, it is characterized in that, bottom in the externally threaded item of leakage-proof part, can the mode around the center line rotation of the cylindrical portion of interior threaded part being provided with the closure of the lower ending opening shutoff of the cylindrical portion of interior threaded part with respect to externally threaded item, in this closure, be formed with through hole, the mode that the upper end of cold-producing medium tedge is communicated with through hole with the pipeline of cold-producing medium tedge is fixed in closure.

13. condensers as claimed in claim 11, it is characterized in that, condensation part side end in the externally threaded item of leakage-proof part is provided with filter, this filter, for removing the foreign matter that flow into the cold-producing medium in the cylindrical portion of interior threaded part from the side space, condensation part in the 1st catch box, is provided with closure in the bottom of filter.