CN202188700U - Evaporator - Google Patents

Abstract

The utility model provides an evaporator which is characterized in that a first pipe group, a second pipe group and a third pipe group are arranged at a lower wind head-side pipe column of the evaporator, and the lower wind head-side pipe column is provided with a forth pipe group and a fifth pipe group. A resistance part for bypass flow, which is used for dividing a third subarea into a first space which is faced to a heat exchange pipe and a second space which is isolated from the first space and charges refrigerant is arranged at the third subarea which is communicated with a heat exchange pipe of the third pipe group of a lower wind head-side upper header pipe part; and a plurality of refrigerant through holes are formed at the resistance part for bypass flow. The lower wind head-side upper header pipe part is provided with a flow cutting-off part which cuts off the flow of the refrigerant to the first space of the third subarea. The third subarea of the lower wind head-side upper header pipe part is communicated with a forth subarea of an upper wind head-side upper header pipe part by a refrigerant access. The evaporator is suitable for refrigeration cycle which forms into a vehicle air conditioner.

Description

Evaporimeter

Technical field

The utility model relates to the evaporimeter that uses in the vehicle air conditioning as kind of refrigeration cycle that is suitable on automobile for example, being carried.

Background technology

In this specification and technical scheme, with about being called up and down of Fig. 2, Fig. 3, Figure 10, Figure 11, Figure 16 and Figure 17.

As this evaporimeter, a kind of evaporimeter has been proposed, it possesses: be included in that upper and lower extends upward and with the rectangular direction of direction of ventilation on two pipe row leaving a plurality of heat exchanger tubes of compartment of terrain configuration and on direction of ventilation, be arranged side by side; Be arranged at down following public attention side two parts pipe portion of the both sides up and down of public attention side pipe row; Last public attention side two parts pipe portion with the both sides up and down that are arranged at public attention side pipe row; At following public attention side pipe row the pipe group more than three that comprises a plurality of heat exchanger tubes is set; A side pipe row of being in the wind are provided with and comprise a plurality of heat exchanger tubes and lack one pipe group than the quantity of the pipe group of descending public attention side pipe row; Be provided with the subregion of the number of the pipe group of following public attention side pipe row and the heat exchanger tube of each pipe group that time public attention side pipe is listed as in following public attention side two parts pipe portion and be communicated with each subregion; A side two parts pipe portion of being in the wind is provided with the subregion of the number of the pipe group of last public attention side pipe row and the heat exchanger tube of going up each pipe group of public attention side pipe row and is communicated with each subregion; The subregion of one end of any the collector portion in following public attention side two parts pipe portion is provided with refrigerant inlet; The subregion with the same end of refrigerant inlet with the collector portion following public attention side collector portion same side that is provided with refrigerant inlet in the side two parts pipe portion of being in the wind is provided with refrigerant outlet; The flow direction of the cold-producing medium that is arranged in the heat exchanger tube that is positioned at the group of pipe farthest that leaves refrigerant outlet position farthest that is listed as from the flow direction of the cold-producing medium of the heat exchanger tube of the group of pipe farthest of refrigerant inlet position farthest and last public attention side pipe in following public attention side pipe row is an equidirectional, by on direction of ventilation, be arranged side by side and heat exchanger tube in the flow direction of cold-producing medium be unidirectional above-mentioned two farthest the pipe group constitute a path (opening the 2009-156523 communique) with reference to the spy.

According to the evaporimeter of above-mentioned communique record, can suppress to have the increase of the passage resistance in overheated (super heat) regional final path.

But; In the evaporimeter of above-mentioned communique record; Though can suppress the increase of the passage resistance of final path, constitute that total passage sections of refrigerant passage of heat exchanger tube of first path and alternate path is long-pending to be reduced on the contrary, therefore exist passage resistance to increase and be cancelled this problem.

In addition; In the evaporimeter of the form that above-mentioned communique is put down in writing; From the purpose that improves cooling performance, need make be positioned at from refrigerant inlet and refrigerant outlet farthest the position and on direction of ventilation, be arranged side by side and the flow direction that constitutes the cold-producing medium of a path and the heat exchanger tube refrigerant amount that to be the heat exchanger tube of unidirectional two pipe groups mobile is even.

So, in an evaporimeter of above-mentioned communique record, following public attention side farthest subregion and last public attention side farthest subregion through being communicated with the communication member that is provided with to the outstanding mode of the transverse direction of heat exchange core.But in this case, communication member is outstanding to the transverse direction of heat exchange core, produces this problem of dead angle when disposing evaporimeter so exist in.

In addition; In another evaporimeter of above-mentioned communique record; Subregion and last public attention side are provided with partition wall farthest between the subregion farthest in following public attention side; And be formed with at this partition wall and make two intercommunicating pores that communicate with each other of subregion farthest, intercommunicating pore than heat exchanger tube two farthest the end of subregion side lean on above-below direction outside part to form.But; Two farthest subregion be positioned under the situation of heat exchanger tube upside; Intercommunicating pore is positioned at than the upper end of heat exchanger tube and leans on the top part, thus flow into public attention side down farthest the cold-producing medium in the subregion flow into because of the influence of gravity is a large amount of in the heat exchanger tube of the group of pipe farthest of public attention side pipe row down.Therefore, making the flow direction that on direction of ventilation, is arranged side by side and constitutes the cold-producing medium in a path and the heat exchanger tube is that unidirectional two refrigerant amount effect of uniform that flow in the heat exchanger tube of pipe group farthest are insufficient.On the other hand; Two farthest subregion be positioned under the situation of heat exchanger tube downside; Intercommunicating pore is positioned at than the lower end of heat exchanger tube and leans on the below part, so when refrigerant flow changes, flow into public attention side down farthest in a large amount of heat exchanger tubes that flow into the group of pipe farthest that public attention side pipe down is listed as of the cold-producing medium in the subregion.Therefore, making the flow direction that on direction of ventilation, is arranged side by side and constitutes the cold-producing medium in a path and the heat exchanger tube is that unidirectional two refrigerant amount effect of uniform that flow in the heat exchanger tube of pipe group farthest are insufficient.

The utility model content

The purpose of the utility model is to address the above problem, thus provide make be positioned at from refrigerant inlet and refrigerant outlet farthest the position and on direction of ventilation, be arranged side by side and the flow direction that constitutes the cold-producing medium of a path and the heat exchanger tube refrigerant amount that to be the heat exchanger tube of unidirectional two pipe groups flow evenly can improve the evaporimeter of cooling performance.

For realizing above-mentioned purpose, the utility model comprises following mode.

1) a kind of evaporimeter possesses: be included in that upper and lower extends upward and with the rectangular direction of direction of ventilation on two pipe row leaving a plurality of heat exchanger tubes of compartment of terrain configuration and on direction of ventilation, be arranged side by side; Be arranged at down following public attention side two parts pipe portion of the both sides up and down of public attention side pipe row; With last public attention side two parts pipe portion of the both sides up and down that are arranged at public attention side pipe row,

At two pipe row a plurality of pipe groups that comprise a plurality of heat exchanger tubes are set respectively; Be provided with the subregion of the number of the pipe group of following public attention side pipe row and the heat exchanger tube of each pipe group that time public attention side pipe is listed as in following public attention side two parts pipe portion and be communicated with each subregion; A side two parts pipe portion of being in the wind is provided with the subregion of the number of the pipe group of last public attention side pipe row and the heat exchanger tube of going up each pipe group of public attention side pipe row and is communicated with each subregion; The subregion of one end of any the collector portion in following public attention side two parts pipe portion is provided with refrigerant inlet; The subregion with the same end of refrigerant inlet with the collector portion following public attention side collector portion same side that is provided with refrigerant inlet in the side two parts pipe portion of being in the wind is provided with refrigerant outlet; The flow direction of the cold-producing medium that the heat exchanger tube of the adjacent tubes group in following public attention side pipe row and the last public attention side pipe row is interior is different; The flow direction of the cold-producing medium of the flow direction of the cold-producing medium of the heat exchanger tube that is arranged in the group of pipe farthest that leaves refrigerant inlet position farthest in following public attention side pipe row and the heat exchanger tube that is positioned at the group of pipe farthest that leaves refrigerant outlet position farthest of last public attention side pipe row is an equidirectional; By on direction of ventilation, be arranged side by side and heat exchanger tube in the flow direction of cold-producing medium be equidirectional above-mentioned two farthest the pipe group constitute a path; And each the pipe group of residue by during public attention side pipe row and last public attention side pipe are listed as down constitutes a path; Flow into the cold-producing medium refrigerant outlet outflow of public attention side collector portion on whole paths flow and pass through successively of public attention side collector portion down from refrigerant inlet; This evaporimeter is characterised in that

Constitute comprise two farthest total passage sections of the long-pending refrigerant passage for the heat exchanger tube that constitutes the previous path that leans on upstream side separately respectively of path and total passage sections of the refrigerant passage of the heat exchanger tube of the previous path that leans on upstream side that constitutes this path of pipe group long-pending more than, constitute and comprise two total passage sections of the refrigerant passage of the heat exchanger tube of a back path that leans on the downstream of the path of pipe group is long-pending farthest and comprise two total passage sections of the refrigerant passage of the heat exchanger tube of pipe group is long-pending big farthest than constituting.

2) according to above-mentioned 1) described evaporimeter, it is characterized in that,

Constitute comprise two total passage sections of the refrigerant passage of the heat exchanger tube of a back path that leans on the downstream of the path of pipe group be long-pending farthest be go up public attention side farthest total passage sections of the refrigerant passage of the heat exchanger tube of pipe group long-pending more than 60%.

3) according to above-mentioned 1) described evaporimeter, it is characterized in that,

Following public attention side is long-pending and the last public attention side of total passage sections of the refrigerant passage of the heat exchanger tube of pipe group long-pending equating of total passage sections of the refrigerant passage of the heat exchanger tube of pipe group farthest farthest, following public attention side and last public attention side farthest the refrigerant passage of the heat exchanger tube of pipe group total passage sections integration not than formation comprise two farthest total passage sections of the refrigerant passage of the heat exchanger tube of the pipe group of the previous path that leans on upstream side of the path of pipe group amass little.

4) according to above-mentioned 1) described evaporimeter, it is characterized in that,

Constitute comprise two farthest total passage sections integration of path and the refrigerant passage of the heat exchanger tube of the previous path that leans on upstream side that constitutes this path of pipe group the total passage sections than the refrigerant passage of the heat exchanger tube of the previous path that leans on upstream side that constitutes this path is long-pending not big.

5) according to above-mentioned 1) described evaporimeter, it is characterized in that,

All heat exchanger tube is identical formation; The total that the passage sections of the quantity of the refrigerant passage of each heat exchanger tube and a plurality of refrigerant passage of each heat exchanger tube is amassed is identical; The radical that constitutes the heat exchanger tube of each path through adjustment decides total passage sections of refrigerant passage of the whole heat exchanger tubes that constitute each path long-pending, and following public attention side and last public attention side quantity of the heat exchanger tube of pipe group farthest are identical.

6) according to above-mentioned 1) described evaporimeter, it is characterized in that,

The subregion that does not form refrigerant outlet in the subregion of public attention side two parts pipe portion on heat exchanger tube was communicated with of final path; Be provided be divided in this subregion first space that heat exchanger tube faces and with the by-passing parts in second space of first spatial separation, on by-passing parts, be formed with cold-producing medium and pass through the hole.

7) according to above-mentioned 6) described evaporimeter, it is characterized in that,

Have the subregion that is provided with by-passing parts on public attention side collector portion, be provided with the mobile promotion parts that promote that cold-producing medium flows to said second space from the subregion adjacent with this subregion.8) according to above-mentioned 1) described evaporimeter, it is characterized in that,

Refrigerant inlet is arranged at down public attention side upper header portion, and refrigerant outlet is arranged at public attention side upper header portion.

9) according to above-mentioned 1) described evaporimeter, it is characterized in that,

At following public attention side pipe row, be arranged side by side first～the 3rd pipe group from the refrigerant inlet side end to the other end side, a side pipe row of being in the wind are arranged side by side the 4th and the 5th pipe group from the end of an opposite side with the refrigerant outlet side to the end of refrigerant outlet side,

In following public attention side two parts pipe portion; Be respectively arranged with first～the 3rd subregion that heat exchanger tube was communicated with of first～the 3rd pipe group; A side two parts pipe portion of being in the wind; Be respectively arranged with the 4th and the 5th subregion that heat exchanger tube was communicated with of the 4th and the 5th pipe group; Be provided with refrigerant inlet at following first subregion of any collector portion up and down of public attention side, and the 5th subregion that is positioned at the collector portion that is provided with refrigerant inlet one side in any up and down of a side of being in the wind is provided with refrigerant outlet

First pipe consist of cold-producing medium in heat exchanger tube from the effluent that refrigerant inlet was positioned at any up and down to first path of opposition side; Second pipe consists of the alternate path that cold-producing medium flows with first path in the other direction in heat exchanger tube; Third and fourth the pipe consist of cold-producing medium in heat exchanger tube with equidirectional the 3rd mobile path of first path; The 5th pipe consists of the four-way road that cold-producing medium flows with first path in the other direction in heat exchanger tube, the 3rd path is that the third and fourth pipe group of equidirectional constitutes through the flow direction that on direction of ventilation, is arranged side by side the cold-producing medium in the heat exchanger tube.

10) An evaporator, comprising: including in the vertical direction extends at right angles with the direction of the ventilation spaced plurality of heat transfer tubes are arranged, and the ventilation direction of the two tube rows arranged side by side; Set on the leeward side of the upper and lower sides of the tube row downwind side of the upper and lower header portion; cephalic tube provided on the windward side of the upper and lower row upwind and down two cephalic header portion, the two columns were set, including a plurality of tubes of a plurality of tube group, the lower side of the upper and lower limelight header portion is provided with a row of the leeward side tube of the tube group number and the same number of partitions the leeward side of the tube rows of tubes in each tube group communicating with the district, in the upwind and down two cephalic header portion is provided with upper hand cephalic tube column tube group number and the same number of partitions upwind cephalic tube column groups each tube tubes connected with the district, the lower side of the upper and lower thunder header portion of any one set of tube end portion is provided with a refrigerant inlet partition, in the upwind and down two sets head side tube portion is provided in the refrigerant inlet and the leeward side of the same set of tube portion a manifold portion side refrigerant inlet and the same side of the partition is provided with a refrigerant outlet in the leeward side of the tube row refrigerant inlet located farthest from the farthest position of the heat transfer tubes of the tube group of the refrigerant flow direction and advantages of the head-side tube row refrigerant outlet located farthest from the farthest position of the tubes within the tube assembly direction of flow of the refrigerant in the same direction, the direction of the ventilation tubes disposed side by side and the refrigerant The flow direction is the same direction as far as the two groups form a passage tube, characterized in that the evaporator,

At following public attention side of the following flow of refrigerant direction upstream side that heat exchanger tube was communicated with of the group of pipe farthest of public attention side pipe row subregion farthest; Be provided with this time public attention side be divided in the subregion farthest first space that heat exchanger tube faces and with first spatial separation and cold-producing medium from following public attention side farthest the shunting in second space that flows into of the adjacent subregion of refrigerant inlet side of subregion use the resistance parts; Form cold-producing medium through the hole in shunting on the resistance parts, following public attention side farthest the flow of refrigerant direction upstream side that heat exchanger tube was communicated with of second space and the group of pipe farthest that last public attention side pipe is listed as of subregion last public attention side farthest subregion be communicated with by the cold-producing medium access.

11) according to above-mentioned 10) described evaporimeter, it is characterized in that,

Be provided with following public attention side collector portion of subregion farthest, be provided with and cut off the downward public attention side of the cold-producing medium mobile mobile cut-out parts in first space of subregion farthest.

12) according to above-mentioned 10) described evaporimeter, it is characterized in that,

The total sectional area of cold-producing medium through the hole is made as A, the total sectional area of cold-producing medium access is being made as under the situation of B, satisfying the relation of B＞A.

13) according to above-mentioned 10) described evaporimeter, it is characterized in that,

Possess and promote cold-producing medium from second space of the subregion promotion parts that public attention side flows in the subregion farthest that make progress farthest of public attention side down.

14) according to above-mentioned 13) described evaporimeter, it is characterized in that,

Promote that parts are arranged at public attention side collector portion of subregion farthest that is provided with down.

15) according to above-mentioned 14) described evaporimeter, it is characterized in that,

Promote parts to comprise to be arranged at cold-producing medium to flow into public attention side down following public attention side of the intake section in second space of subregion and the baffle plate of the following public attention side inflow of obstruction cold-producing medium in said second space farthest.

16) according to above-mentioned 14) described evaporimeter, it is characterized in that,

Promote parts to comprise to be arranged at down public attention side farthest the orientation of the heat exchanger tube in second space of subregion pars intermedia and be positioned at part and the obstruction cold-producing medium of heat exchanger tube side baffle plate to the heat exchanger tube side inflow in said second space.

17) according to above-mentioned 10) described evaporimeter, it is characterized in that,

At following public attention side pipe row, be arranged side by side first～the 3rd pipe group from the refrigerant inlet side end to the other end side, a side pipe row of being in the wind are arranged side by side the 4th and the 5th pipe group from the end of an opposite side with the refrigerant outlet side to the end of refrigerant outlet side,

In following public attention side two parts pipe portion; Be respectively arranged with first～the 3rd subregion that heat exchanger tube was communicated with of first～the 3rd pipe group; A side two parts pipe portion of being in the wind; Be respectively arranged with the 4th and the 5th subregion that heat exchanger tube was communicated with of the 4th and the 5th pipe group; Be provided with refrigerant inlet at following first subregion of any collector portion up and down of public attention side, and the 5th subregion that is positioned at the collector portion that is provided with refrigerant inlet one side in any up and down of a side of being in the wind is provided with refrigerant outlet

First pipe consists of cold-producing medium and in heat exchanger tube, is positioned at first path of an effluent to opposition side from the refrigerant inlet any up and down; Second pipe consists of the alternate path that cold-producing medium flows with first path in the other direction in heat exchanger tube; Third and fourth the pipe consist of cold-producing medium in heat exchanger tube with equidirectional the 3rd mobile path of first path; The 5th pipe consists of the four-way road that cold-producing medium flows with first path in the other direction in heat exchanger tube; The 3rd path is that the third and fourth pipe group of equidirectional constitutes by the flow direction that on direction of ventilation, is arranged side by side the cold-producing medium in the heat exchanger tube

The 3rd pipe group of following public attention side pipe row is pipe groups farthest; The 3rd subregion of the collector portion that is provided with refrigerant inlet one side about following public attention side in the collector portion of any is the subregion farthest of the flow of refrigerant direction upstream side that heat exchanger tube was communicated with of the 3rd pipe group; And the resistance parts are used in the shunting that in the 3rd subregion is provided with the 3rd subregion, is divided into first space and second space, and cold-producing medium flows into second space of the 3rd subregion from second subregion of the collector portion that is provided with refrigerant inlet one side.

18) according to above-mentioned 10) described evaporimeter, it is characterized in that,

At following public attention side pipe row, be arranged side by side first～the 4th pipe group from the refrigerant inlet side end to the other end side, a side pipe row of being in the wind are arranged side by side the 5th～the 7th pipe group from the end of an opposite side with the refrigerant outlet side to the end of refrigerant outlet side,

In following public attention side two parts pipe portion; Be respectively equipped with first～the 4th subregion that heat exchanger tube was communicated with of first～the 4th pipe group; A side two parts pipe portion of being in the wind is respectively equipped with the 5th～the 7th subregion that heat exchanger tube was communicated with of the 5th～the 7th pipe group, is provided with refrigerant inlet at first subregion of any collector portion up and down of public attention side down; And up and down the 7th subregion that is positioned at the collector portion that is provided with refrigerant inlet one side in any of a side of being in the wind is provided with refrigerant outlet

First pipe consists of cold-producing medium and in heat exchanger tube, is positioned at first path of an effluent to opposition side from the refrigerant inlet any up and down; Second pipe consists of the alternate path that cold-producing medium flows with first path in the other direction in heat exchanger tube; The 3rd the pipe consist of cold-producing medium in heat exchanger tube with equidirectional the 3rd mobile path of first path; The the 4th and the 5th pipe consists of the four-way road that cold-producing medium flows with first path in the other direction in heat exchanger tube; The 6th the pipe consist of cold-producing medium in heat exchanger tube with the equidirectional mobile five-way road of first path; The 7th pipe consists of the 6th path that cold-producing medium flows with first path in the other direction in heat exchanger tube, the four-way road is that the 4th and the 5th pipe group of equidirectional constitutes through the flow direction that on direction of ventilation, is arranged side by side the cold-producing medium in the heat exchanger tube

The 4th pipe group of following public attention side pipe row is pipe groups farthest; The 4th subregion of the collector portion of the side opposite with being provided with refrigerant inlet one side about following public attention side in the collector portion of any is the subregion farthest of the flow of refrigerant direction upstream side that heat exchanger tube was communicated with of the 4th pipe group; And the resistance parts are used in the shunting that in the 4th subregion is provided with the 4th subregion, is divided into first space and second space, and cold-producing medium flows into second space of the 4th subregion from the 3rd subregion of the collector portion of a side opposite with a side that is provided with refrigerant inlet.

19) according to above-mentioned 10) described evaporimeter, it is characterized in that,

Refrigerant inlet is arranged at down public attention side upper header portion, and refrigerant outlet is arranged at public attention side upper header portion.

20) according to above-mentioned 10) described evaporimeter, it is characterized in that,

Constitute comprise two farthest total passage sections of the refrigerant passage of the long-pending heat exchanger tube that is respectively the previous path that leans on upstream side that constitutes this path of path and total passage sections of the refrigerant passage of the heat exchanger tube of the previous path that leans on upstream side that constitutes this path of pipe group long-pending more than, constitute and comprise two total passage sections of the refrigerant passage of the heat exchanger tube of a back path that leans on the downstream of the path of pipe group is long-pending farthest and comprise two total passage sections of the refrigerant passage of the heat exchanger tube of pipe group is long-pending big farthest than constituting.

21) according to above-mentioned 20) described evaporimeter, it is characterized in that,

Constitute comprise two total passage sections of the refrigerant passage of the heat exchanger tube of a back path that leans on the downstream of the path of pipe group be long-pending farthest be go up public attention side farthest total passage sections of the refrigerant passage of the heat exchanger tube of pipe group long-pending more than 60%.

22) according to above-mentioned 20) described evaporimeter, it is characterized in that,

Following public attention side is long-pending and the last public attention side of total passage sections of the refrigerant passage of the heat exchanger tube of pipe group long-pending equating of total passage sections of the refrigerant passage of the heat exchanger tube of pipe group farthest farthest, following public attention side and last public attention side farthest the refrigerant passage of the heat exchanger tube of pipe group total passage sections integration not than formation comprise two farthest total passage sections of the refrigerant passage of the heat exchanger tube of the pipe group of the previous path that leans on upstream side of the path of pipe group amass little.

23) according to above-mentioned 20) described evaporimeter, it is characterized in that,

Constitute comprise two farthest total passage sections integration of path and the refrigerant passage of the heat exchanger tube of the previous path that leans on upstream side that constitutes this path of pipe group the total passage sections than the refrigerant passage of the heat exchanger tube of the previous path that leans on upstream side that constitutes this path is long-pending not big.

24) according to above-mentioned 20) described evaporimeter, it is characterized in that,

All heat exchanger tube is identical formation; The total that the passage sections of the quantity of the refrigerant passage of each heat exchanger tube and a plurality of refrigerant passage of each heat exchanger tube is amassed is identical; The radical that constitutes the heat exchanger tube of each path through adjustment decides total passage sections of refrigerant passage of the whole heat exchanger tubes that constitute each path long-pending, and following public attention side and last public attention side quantity of the heat exchanger tube of pipe group farthest are identical.

According to above-mentioned 1)～9) evaporimeter; Constitute comprise two farthest total passage sections of the refrigerant passage of the long-pending heat exchanger tube that is respectively the formation previous path that leans on upstream side separately of path and total passage sections of the refrigerant passage of the heat exchanger tube of the previous path that leans on upstream side that constitutes this path of pipe group long-pending more than; Constitute and to comprise two total passage sections of the refrigerant passage of the heat exchanger tube of a back path that leans on the downstream of the path of pipe group is long-pending farthest and comprise two total passage sections of the refrigerant passage of the heat exchanger tube of pipe group is long-pending big farthest than constituting; So the gas-liquid mixed phase cold-producing medium of inflow evaporator flows with the evaporation of the liquid phase ingredient that promotes cold-producing medium, even specific volume increases the rising that also can suppress the passage resistance in the path except that first path at whole paths successively.And successively when whole paths flows, can suppress the passage resistance that the final path that a large amount of vapor phase refrigerant flow appears and have in superheat region increases, and can improve the performance of evaporimeter at the gas-liquid mixed phase cold-producing medium of inflow evaporator.

According to above-mentioned 3) evaporimeter; Following public attention side farthest long-pending and the last public attention side of total passage sections of the refrigerant passage of the heat exchanger tube of pipe group total passage sections of the refrigerant passage of the heat exchanger tube of pipe group is long-pending equal farthest; Following public attention side and last public attention side total passage sections integration of the refrigerant passage of the heat exchanger tube of pipe group farthest do not comprise two than formation total passage sections of the refrigerant passage of the heat exchanger tube of the pipe group of the previous path that leans on upstream side of the path of pipe group are long-pending little farthest; So can guarantee to constitute with comprise two farthest the path of pipe group compare by total passage sections of the refrigerant passage of the heat exchanger tube of the previous path of upstream side long-pendingly, and can realize to comprising said two homogenising of the shunting of the heat exchanger tube of the path of pipe group farthest.

According to above-mentioned 4) evaporimeter; Constitute comprise two farthest total passage sections integration of path and the refrigerant passage of the heat exchanger tube of the previous path that leans on upstream side that constitutes this path of pipe group the total passage sections than the refrigerant passage of the heat exchanger tube of the previous path that leans on upstream side that constitutes this path is long-pending not big; So the gas-liquid mixed phase cold-producing medium of inflow evaporator flows and promotes the evaporation of the liquid phase ingredient of cold-producing medium at whole paths successively, even specific volume increases the rising of the passage resistance in the path that also can effectively suppress except that upstream side path.

According to above-mentioned 5) evaporimeter; Can make more simply constitute comprise two farthest total passage sections of the refrigerant passage of the long-pending heat exchanger tube that is respectively the formation previous path that leans on upstream side separately of path and total passage sections of the refrigerant passage of the heat exchanger tube of the previous path that leans on upstream side that constitutes this path of pipe group long-pending more than, and make that total passage sections of refrigerant passage of the heat exchanger tube that constitutes final path is long-pending to be comprised two total passage sections of the refrigerant passage of the heat exchanger tube of pipe group is long-pending big farthest than constituting.In addition, can make more simply total passage sections of refrigerant passage of the heat exchanger tube that constitutes final path long-pending be go up public attention side farthest total passage sections of the refrigerant passage of the heat exchanger tube of pipe group long-pending more than 60%.And, can reduce the kind of parts.

According to above-mentioned 6) evaporimeter, can make cold-producing medium to the heat exchanger tube of the pipe group that constitutes final path the shunting of refrigerant passage even.

According to above-mentioned 7) evaporimeter; Promote parts to promote cold-producing medium to flow to said second space from the subregion adjacent with the subregion that is provided with by-passing parts through flowing; So the cold-producing medium of cold-producing medium through by-passing parts that gets in second space gets into first space through the hole, flows in the heat exchanger tube then.Therefore, can more effectively carry out cold-producing medium to the heat exchanger tube of the pipe group that constitutes final path the shunting homogenising of refrigerant passage.

According to above-mentioned 10)～19) evaporimeter; Following public attention side of the flow of refrigerant direction upstream side that is communicated with at the following heat exchanger tube of the group of pipe farthest of public attention side pipe row is subregion farthest; Be provided with this time public attention side be divided in the subregion farthest first space that heat exchanger tube faces and with first spatial separation and cold-producing medium from following public attention side farthest the shunting in second space that flows into of the adjacent subregion of refrigerant inlet side of subregion use the resistance parts; On shunting, form cold-producing medium and pass through the hole with the resistance parts; Following public attention side farthest the flow of refrigerant direction upstream side that heat exchanger tube was communicated with of the group of pipe farthest of second space and the last public attention side pipe row of subregion last public attention side farthest subregion be communicated with by the cold-producing medium access, so when disposing evaporimeter, can not produce the dead angle.

In addition; Cold-producing medium under flowing into public attention side farthest in second space of subregion after; Flow into to go up public attention side subregion and flowing in the heat exchanger tube of the group of pipe farthest that goes up public attention side pipe row farthest through the cold-producing medium access; Meanwhile, getting into through the hole in the heat exchanger tube of the group of pipe farthest that public attention side pipe is listed as under the inflow afterwards in first space through the cold-producing medium of shunting with the resistance parts.And; For flowing into the cold-producing medium in second space of subregion farthest of public attention side down; Apply for its resistance that flows in first space with the resistance parts by shunting; Therefore public attention side down farthest subregion and last public attention side farthest subregion be positioned under the situation of heat exchanger tube upside, suppress to flow into public attention side down farthest the cold-producing medium in the subregion flow into the heat exchanger tube of the group of pipe farthest of public attention side pipe row down because of the influence of gravity is a large amount of.Therefore, make the refrigerant amount that flows into the heat exchanger tube of the group of pipe farthest of public attention side pipe row down even with the refrigerant amount of the heat exchanger tube that flows into the group of pipe farthest that goes up public attention side pipe row.In contrast; Following public attention side farthest subregion and last public attention side farthest subregion be positioned under the situation of heat exchanger tube downside; When the changes in flow rate of cold-producing medium, also can suppress to flow into down public attention side farthest in a large amount of heat exchanger tubes that flow into the group of pipe farthest of public attention side pipe row down of the cold-producing medium of subregion.Therefore, make the refrigerant amount that flows into the heat exchanger tube of the group of pipe farthest of public attention side pipe row down even with the refrigerant amount of the heat exchanger tube that flows into the group of pipe farthest that goes up public attention side pipe row.Its result can make to be positioned to be provided with from refrigerant inlet and refrigerant outlet position and on direction of ventilation, arranging farthest and to constitute a path and be two of equidirectional at the flow direction of the cold-producing medium of heat exchanger tube that the refrigerant amount that flows of the heat exchanger tube of pipe group is even farthest.

According to above-mentioned 12) evaporimeter; Can make in the heat exchanger tube of two pipe groups the refrigerant amount that flows even effectively, these two pipe groups be positioned at from refrigerant inlet and refrigerant outlet farthest the position and on direction of ventilation, arrange setting and constitute a path and be equidirectional at the flow direction of the cold-producing medium of heat exchanger tube.

According to above-mentioned 13)～16) evaporimeter; Possess and promote cold-producing medium from second space of the subregion promotion parts that public attention side flows in the subregion farthest that make progress farthest of public attention side down; So will promote cold-producing medium from following public attention side farthest second space of subregion public attention side that makes progress flow in the subregion farthest, make to flow into public attention side down the interior refrigerant amount of subregion is even farthest with last public attention side in second space of subregion farthest.Therefore, can make effectively flow into following public attention side farthest refrigerant amount and inflow and last public attention side of the heat exchanger tube of the group of pipe farthest that is listed as of following public attention side pipe of being connected of subregion the refrigerant amount of the heat exchanger tube of the group of pipe farthest that is listed as of following public attention side pipe of being connected of subregion is even farthest.Its result; Can make effectively to be positioned to be provided with from refrigerant inlet and refrigerant outlet position and on direction of ventilation, arranging farthest and to be two of equidirectional at the flow direction of the cold-producing medium of heat exchanger tube the refrigerant amount that flows of the heat exchanger tube of pipe group is even farthest, can further improve the cooling performance of evaporimeter.

According to above-mentioned 15) and 16) evaporimeter, can be provided with more simply and promote flow into the cold-producing medium of the subregion promotion parts that public attention side flows in the subregion farthest that make progress farthest of public attention side down.

Description of drawings

Fig. 1 is that the part that the integral body of the evaporimeter of expression the utility model embodiment 1 constitutes is omitted stereogram.

Fig. 2 is the A-A line cutaway view that has omitted a part of Fig. 1.

Fig. 3 is the B-B line cutaway view that has omitted a part of Fig. 1.

Fig. 4 is the C-C line cutaway view of Fig. 2.

Fig. 5 is the D-D line cutaway view of Fig. 2.

Fig. 6 is the figure that flows of the cold-producing medium in the evaporimeter of presentation graphs 1.

Fig. 7 is the part stereogram of first variation of following public attention side upper header portion of the evaporimeter of expression embodiment 1.

Fig. 8 is the part stereogram of second variation of following public attention side upper header portion of the evaporimeter of expression embodiment 1.

Fig. 9 is the part stereogram of the 3rd variation of following public attention side upper header portion of the evaporimeter of expression embodiment 1.

Figure 10 is the observing the being seen part in the place ahead from the rear of the part of public attention side two parts pipe portion down and omit vertical sectional view of evaporimeter of expression the utility model embodiment 2.

Figure 11 is that the rear from the part of last public attention side two parts pipe portion of the evaporimeter of expression the utility model embodiment 2 is observed the being seen part in the place ahead and omitted vertical sectional view.

Figure 12 is the E-E line cutaway view of Figure 10.

Figure 13 is the F-F line cutaway view of Figure 10.

Figure 14 is the figure that flows of the cold-producing medium in the evaporimeter of expression Figure 10.

Figure 15 is that the part that the integral body of the evaporimeter of expression the utility model embodiment 3 constitutes is omitted stereogram.

Figure 16 is the G-G line cutaway view that has omitted a part of Figure 15.

Figure 17 is the H-H line cutaway view that has omitted a part of Figure 15.

The specific embodiment

The embodiment of 1 pair of the utility model describes with reference to the accompanying drawings.The embodiment of below describing is the embodiment that the evaporimeter that the utility model relates to is applicable to the kind of refrigeration cycle that constitutes vehicle air conditioning.

All in the accompanying drawing same section and same object are being marked with same tag to omit repeat specification.

Have, in following explanation, " aluminium " this term also comprises aluminium alloy except fine aluminium again.

In addition; In following explanation; Will be before the downstream of adjacent heat exchanger tube ventilation gap flow air each other (direction shown in the arrow X among Fig. 1, Fig. 4, Fig. 5, Figure 12, Figure 13 and Figure 15) be made as; After side is made as in contrast, about being made as about Fig. 2～Fig. 5, Figure 10～Figure 13 and Figure 16～Figure 17.

Embodiment 1

This embodiment is represented by Fig. 1～Fig. 6.Fig. 1 representes that the integral body of evaporimeter constitutes, and Fig. 2～Fig. 5 representes the formation of its pith.In addition, the cold-producing medium in the evaporimeter of Fig. 6 presentation graphs 1 flows.

In Fig. 1, evaporimeter 1 possesses: aluminum first catch box 2 and aluminum second catch box 3 that on above-below direction, leaves the compartment of terrain configuration; And be arranged at two catch boxs 2, the heat exchange core 4 between 3.

First catch box 2 possesses: the following public attention side collector portion 5 that is positioned at following public attention side (front side); Be positioned at public attention side (rear side) and with the 5 incorporate public attention side collector portions 6 of going up of following public attention collector portion.Here, following public attention side collector portion 5 and last public attention side collector portion 6 are through being provided with the separation of first catch box, 2 front and back with separating part 2a.Second catch box 3 possesses: the following public attention side collector portion 7 that is positioned at following public attention side (front side); Be positioned at public attention side (rear side) and with the 7 incorporate public attention side collector portions 8 of going up of following public attention collector portion.Here, following public attention side collector portion 7 and last public attention side collector portion 8 are through being provided with the separation of second catch box, 3 front and back with separating part 3a.

In following explanation; Following public attention side collector portion 5 of first catch box 2 is called public attention side upper header portion down; Following public attention side collector portion 7 of second catch box 3 is called public attention side lower collector pipe portion down; Last public attention side collector portion 6 of first catch box 2 is called public attention side upper header portion, last public attention side collector portion 8 of second catch box 3 is called public attention side lower collector pipe portion.

Being constructed as follows of heat exchange core 4: comprise width frontage and airiness direction and on left and right directions (with the rectangular direction of direction of ventilation), leave compartment of terrain configuration and on fore-and-aft direction, be arranged side by side two row at the pipe row 11,12 of the upwardly extending a plurality of aluminum flat heat-exchanging tubes 9 of upper and lower; Disposing aluminum corrugate fin 13 and solder in heat exchanger tube 9 across the mode of the heat exchanger tube 9 of front and back two pipe row 11,12 respectively, dispose aluminum side plate 14 and solder respectively in the outside of the corrugate fin 13 of right ends in the outside of the heat exchanger tube 9 of adjacent heat exchanger tube 9 ventilation gap and the right ends each other of each pipe row 11,12 in corrugate fin 13.Heat exchanger tube 9 is the manufacturings of aluminium extrusion moulding material, has a plurality of refrigerant passage of on width, arranging.The both ends up and down of the heat exchanger tube 9 of following public attention side pipe row 11 are connected with following public attention side two parts pipe portion 5,7 connected state ground, and the both ends up and down of the heat exchanger tube 9 of last public attention side pipe row 12 are connected with last public attention side two parts pipe portion 6,8 connected state ground.Have, the quantity of the heat exchanger tube 9 of the quantity of the heat exchanger tube 9 of following public attention side pipe row 11 and following public attention side pipe row 12 equates again.All heat exchanger tubes 9 all are identical formations, and the total that the passage sections of the quantity of the refrigerant passage of each heat exchanger tube 9 and a plurality of refrigerant passage of each heat exchanger tube 9 is amassed is identical.

Like Fig. 2～shown in Figure 5; At following public attention side pipe row 11; Be arranged side by side three the pipe group 11A, 11B, the 11C that comprise a plurality of heat exchanger tubes 9 from right to left side; A side pipe row 12 of being in the wind are arranged side by side the 4th and the 5 two (lacking one than the quantity of the pipe group of public attention side pipe row 11 down) pipe group 12A, the 12B that comprises a plurality of heat exchanger tubes 9 from left end to right-hand member.

In following public attention side two parts pipe portion 5,7, be respectively equipped with and pipe group 11A, 11B, the 11C equal number of following public attention side pipe row 11 and the subregion 15,16,17 and 18,19,21 that is communicated with the heat exchanger tube 9 of each pipe group 11A, 11B, 11C.Be provided with refrigerant inlet 22 in the following right part of the subregion 15 of the right-hand member of public attention side upper header portion 5.Down three pipe group 11A, 11B, the 11C of public attention side pipe row 11 are called first～the 3rd pipe group from refrigerant inlet 22 side ends (right part) to the other end (left part), and the subregion 15,16,17 and 18,19,21 that the heat exchanger tube 9 of first～the 3rd pipe group 11A, 11B, 11C is communicated with is called first～the 3rd subregion from refrigerant inlet 22 side ends (right part) to the other end (left part).The 3rd pipe group 11C down is positioned at the group of pipe farthest from refrigerant inlet 22 position farthest in public attention side pipe row 11, and the 3rd subregion 17 of following public attention side upper header portion 5 is following public attention side subregions farthest of the flow of refrigerant direction upstream side (upside) that is communicated with of the heat exchanger tube 9 of the 3rd pipe group 11C.

A side two parts pipe portion 6,8 of being in the wind is respectively equipped with and pipe group 12A, the 12B equal number of last public attention side pipe row 12 and the subregion 23,24 and 25,26 that is communicated with the heat exchanger tube 9 of each pipe group 12A, 12B.The right part of the subregion 24 of the right-hand member of side upper header portion 6 (with refrigerant inlet 22 same ends) of being in the wind is provided with refrigerant outlet 27.Two pipe group 12A, the 12B of last public attention side pipe row 12 are called the 4th～the 5th pipe group from the end (left part) with refrigerant outlet 27 opposition sides to the end (right part) of refrigerant outlet side 27, and the subregion 23,24 and 25,26 that the heat exchanger tube 9 of the 4th～the 5th pipe group 12A, 12B is communicated with is called the 4th～the 5th subregion from the end (left part) with refrigerant outlet 27 opposition sides to the end (right part) of refrigerant outlet side 27.The 4th pipe group 12A is the group of pipe farthest from refrigerant outlet 27 highest distance positions that is positioned at that goes up in public attention side pipe row 12, and the 4th subregion 23 of last public attention side upper header portion 6 is last public attention side subregions farthest of the flow of refrigerant direction upstream side (upside) that is communicated with of the 4th pipe group 12A.

Have again; The total quantity of heat exchanger tube 9 that constitutes the first and second pipe group 11A, the 11B of public attention side pipe row 11 down equates with the quantity of the heat exchanger tube 9 that constitutes the 5th pipe group 12B that goes up public attention side pipe row 12, and the quantity that constitutes the heat exchanger tube 9 of the 3rd pipe group 11C of public attention side pipe row 11 down and the formation upward quantity of the heat exchanger tube 9 of the 4th pipe group 12A of public attention side pipe row 12 equate.In addition; The equal in length of the left and right directions of the 5th subregion 24,26 of the combined length of first subregion 15,18 of following public attention side two parts pipe portion 5,7 and the left and right directions of second subregion 16,19 and last public attention side two parts pipe portion 6,8, the equal in length of the left and right directions of the 4th subregion 23,25 of the length of the left and right directions of the 3rd subregion 17,21 of following public attention side two parts pipe portion 5,7 and last public attention side two parts pipe portion 6,8.

Between first subregion 15 that descends public attention side upper header portion 5 and second subregion 16, be provided with partition wall 33, thereby make two subregions 15,16 become non-connected state.As under following public attention side of public attention side collector portion 5 be provided with tabular shunting with resistance parts 36 in the 3rd subregion 17 of subregion farthest, second space 37 of the upside that this shunting separates with first space 38 that is divided into the downside that heat exchanger tube 9 faced in the 3rd subregion 17 with first space 38 with resistance parts 36.Between second subregion 16 of following public attention side upper header portion 5 and the 3rd subregion 17, be provided with to flow and cut off parts 41, this flows and cuts off parts 41 with the right-end openings sealing in first space 38 of the 3rd subregion 17 and cut off cold-producing medium from second subregion 16 flowing to first space 38.In addition; The right part integral finish in second space 37 through making the 3rd subregion 17; And second space 37 that makes second subregion 16 and the 3rd subregion 17 becomes connected state, and cold-producing medium flows in second space 37 of the 3rd subregion 17 from second subregion 16 adjacent with refrigerant inlet 22 sides of the 3rd subregion 17.Here, the opening of the right part in second space 37 of the 3rd subregion 17 becomes the intake section 45 in second space 37 that makes cold-producing medium flow into the 3rd subregion 17.Have again, on shunting, on left and right directions, leave the compartment of terrain and be formed with a plurality of cold-producing mediums, thereby two spaces 37,38 are communicated with through hole 39 with resistance parts 36.

First subregion 18 and second subregion 10 of following public attention side collector portion 7 become connected state.In addition, between second subregion 19 that descends public attention side lower collector pipe portion 7 and the 3rd subregion 21, be provided with partition wall 34, thereby make two subregions 19,21 become non-connected state.

Being in the wind is provided with partition wall 35 between the 4th subregion 23 and the 5th subregion 24 of a side upper header portion 6, thereby makes two subregions 23,24 become non-connected state.

Be in the wind in the 5th subregion 26 of a side lower collector pipe portion 8; Be provided with the tabular shunting that is divided into space 26A and following space 26B in the 5th subregion 26 with resistance parts 42; On shunting, on left and right directions, leave the compartment of terrain and be formed with a plurality of cold-producing mediums through hole 43 with resistance parts 42.In addition; Be in the wind between the 4th subregion 25 and the 5th subregion 26 of a side lower collector pipe portion 8, be provided with the left end closure of openings of the last space 26A of the 5th subregion 26 and promote the tabular mobile promotion parts 44 that cold-producing medium flows to the following space 26B of the 5th subregion 26 from the 4th subregion 25.In addition, the left part integral finish of the following space 26B through making the 5th subregion 26, and make the following space 26B of the 4th subregion 25 and the 5th subregion 26 become connected state, cold-producing medium flows in the following space 26B of the 5th subregion 26 from the 4th subregion 25.Have again, promote cold-producing medium to flow, then also can on the promotion parts 44 that flow, form the hole that cold-producing medium passes through from the following space 26B of the 4th subregion 25 to the 5th subregion 26 if do not hinder.

Second space 37 of the 3rd subregion 17 of following public attention side upper header portion 5 is communicated with through a plurality of access 30 with the 4th subregion 23 of last public attention side upper header portion 6, these a plurality of access 30 by than the intake section 45 of the partition wall 2a of first header 2, cut off more the keep left part of side of parts 41 and partition wall 35 and on left and right directions, leave the through hole that the compartment of terrain is provided with and constitute.

The 4th subregion 25 of the 3rd subregion 21 of following public attention side lower collector pipe portion 7 and last public attention side lower collector pipe portion 8 is communicated with by the set interconnecting part 40 of part of the side that more keeps left at the partition wall 34 than the separating part 3a of second header 3.

Here; Preferably; Will shunting with resistance parts 36 on the total sectional area of a plurality of cold-producing mediums through hole 39 of setting be made as A; The total sectional area of the 3rd subregion 17 that is communicated with public attention side upper header portion 5 down with a plurality of cold-producing medium access 30 of the 4th subregion 23 of last public attention side upper header portion 6 is made as under the situation of B, satisfies the relation of B＞A.

Through each subregion 15～19,21,23～26, refrigerant inlet 22, refrigerant outlet 27 are set as above-mentioned, have the shunting of cold-producing medium through hole 39 with resistance parts 36, cut off parts 41, first space 38, second space 37, have the shunting of cold-producing medium through hole 43 with resistance parts 42, flow promote parts 44, go up space 26A, following space 26B, access 30 and access 40; Cold-producing medium the first pipe group 11A, the heat exchanger tube 9 that is arranged in the 3rd pipe group 11C (groups of pipe farthest of following public attention side pipe row 11) and is positioned at the 4th pipe group 12A from refrigerant outlet 27 highest distance positions (going up the groups of pipe farthest of public attention side pipe row 12) from refrigerant inlet 22 highest distance positions from about the effluent that is positioned at of any refrigerant inlet 22 to opposition side; Here for flowing from the top down, these pipe groups 11A, 11C, 12A become sinking pipe group.In addition, cold-producing medium flows in the heat exchanger tube 9 of the second pipe group 11B and the 5th pipe group 12B from bottom to top, and these pipe groups 11B, 12B become upwelling pipe group.That is, the flow direction of the cold-producing medium in the heat exchanger tube 9 of the 4th pipe group 12A of the 3rd pipe group 11C of following public attention side pipe row 11 and last public attention side pipe row 12 is same direction.The first pipe group 11A become cold-producing medium in heat exchanger tube 9 from the side direction opposition side that refrigerant inlet 22 was positioned at any up and down, first path 28 for flowing from the top down here; The second pipe group 11B become cold-producing medium in heat exchanger tube 9 from bottom to top (with first path 28 in the other direction) alternate path 29 of flowing; The third and fourth pipe group 11C, 12A become cold-producing medium (equidirectional with first path 28) the 3rd path 31 of flowing from the top down in heat exchanger tube 9; The 5th pipe group 12B become cold-producing medium in heat exchanger tube 9 from bottom to top (with first path 28 in the other direction) four-way road 32, the three paths 31 of flowing are to be that the unidirectional third and fourth pipe group 11C, 12A constitute through the flow direction that on direction of ventilation, is arranged side by side the cold-producing medium in the heat exchanger tube 9.And the cold-producing medium that flows into from refrigerant inlet 22 flows the heat exchanger tube 9 on the first～the four-way road 28,29,31,32 through following two paths will describing successively, flows out from refrigerant outlet 27.First path is that last space 26A, the 5th pipe group 12B (four-way road 32) and the 5th subregion 24, the second paths of following space 26B, the 5th subregion 26 of second space 37, the 4th subregion 23, the 4th pipe group 12A (the 3rd path 31), the 4th subregion 25, the 5th subregion 26 of first subregion 15, the first pipe group 11A (first path 28), first subregion 18, second subregion 19, the second pipe group 11B (alternate path 29), second subregion 16, the 3rd subregion 17 are first space 38, the 3rd pipe group 11C (the 3rd path 31), the 3rd subregion 21, the 4th subregion 25, the following space 26B of the 5th subregion 26, the last space 26A of the 5th subregion 26, the 5th pipe group 12B (four-way road 32) and the 5th subregions 24 of second space 37, the 3rd subregion 17 of first subregion 15, the first pipe group 11A (first path 28), first subregion 18, second subregion 19, the second pipe group 11B (alternate path 29), second subregion 16, the 3rd subregion 17.

Above-mentioned evaporimeter 1 and compressor, together constitute kind of refrigeration cycle, be loaded into vehicle as vehicle air conditioning for example on the automobile as the condenser of refrigerant cooler with as the expansion valve of pressure reducer.When the work of vehicle air conditioning; The two-phase system cryogen of the gas-liquid mixed phase through compressor, condenser and expansion valve is in refrigerant inlet 22 gets into down first subregion 15 of public attention side upper header portion 5; Heat exchanger tube 9 through above-mentioned two paths on the first～the four- way road 28,29,31,32 flows successively, flows out from refrigerant outlet 27.

And; Cold-producing medium is in the heat exchanger tube 9 of following public attention side pipe row 11 and in the heat exchanger tube 9 of last public attention side pipe row 12 between flow periods; Carry out heat exchange with the air (with reference to arrow X among Fig. 1) of ventilation gap through heat exchange core 4, air is cooled, and cold-producing medium becomes gas phase and flows out.

Here; Be in the wind in the 3rd subregion 17 of a side upper header portion 5; Be provided with the tabular shunting that is divided into first space 38 and second space 37 in the 3rd subregion 17 with resistance parts 36; On shunting, on left and right directions, leave the compartment of terrain and be formed with a plurality of cold-producing mediums, so the cold-producing mediums that flow in second space 37 are applied because of shunting with resistance parts 36 flowing to the resistance of the flows generation in first space 38 through hole 39 with resistance parts 36; Even receive the influence of gravity, also can suppress to flow into the cold-producing medium a large amount of inflows in the heat exchanger tube 9 that constitutes the 3rd pipe group 11C of the 3rd path 31 of public attention side pipe row 11 down in second space 37 of the 3rd subregion 17.Therefore, the refrigerant amount in the heat exchanger tube 9 that flows into the 3rd pipe group 11C and get into through cold-producing medium access 30 is flowed into after the 4th subregion 23 of going up public attention side upper header portion 6 constitute the refrigerant amount in the heat exchanger tube 9 of last the 4th pipe group 12A of the 3rd path 31 of public attention side pipe row 12 even.Especially; If be made as A with a plurality of cold-producing mediums of resistance parts 36 total sectional area through hole 39 will being arranged at shunting; The total sectional area of second space 37 that is communicated with the 3rd subregion 17 of public attention side upper header portion 5 down with a plurality of cold-producing medium access 30 of the 4th subregion 23 of last public attention side upper header portion 6 is made as under the situation of B; Satisfy the relation of B＞A, then make the refrigerant amount that flows at the 3rd pipe group 11C and the 4th pipe group 12A homogenising effectively.

Fig. 7～Fig. 9 representes the variation of public attention side upper header portion 5 down.

Under the situation of shown in Figure 7 following public attention side upper header portion 5; As following public attention side following public attention side of the intake section 45 in second space 37 in the 3rd subregion 17 of subregion farthest, the baffle plate 46 that hinders the leeward rostral components inflow of cold-producing medium in second space 37 is set in the whole altitude range in second space 37.Baffle plate 46 become promote cold-producing medium from second space 37 of the 3rd subregion 17 to as last public attention side promotion parts 47 of inflow in the 4th subregion 23 of subregion farthest.

Under the situation of shown in Figure 8 following public attention side upper header portion 5; As following public attention side lower portion (parts of heat exchanger tube 9 sides) of the pars intermedia of the left and right directions (orientation of heat exchanger tube 9) in second space 37 of the 3rd subregion 17 of subregion farthest, the baffle plate 48 of the heat exchanger tube 9 side sections inflow of obstruction cold-producing medium in second space 37 is set in the whole width range of the fore-and-aft direction in second space 37.Baffle plate 48 become promote cold-producing medium from second space 37 of the 3rd subregion 17 to as last public attention side promotion parts 49 of inflow in the 4th subregion 23 of subregion farthest.

Under the situation of shown in Figure 9 following public attention side upper header portion 5; Except be not provided with as following public attention side farthest first space 38 of the 3rd subregion 17 of subregion the right-end openings sealing and cut off the mobile cut-out parts 41 that cold-producing medium flows to first space 38 from second subregion 16 of public attention side upper header portion 5 down, identical with shown in Figure 8 following public attention side upper header portion 5.

Have again, in shown in Figure 9 following public attention side upper header portion 5, also can the partition member that first space 37 is separated be set on left and right directions at the pars intermedia of the left and right directions (orientation of heat exchanger tube 9) in first space 38 of the 3rd subregion 17.Partition member both can be arranged on the position identical with baffle plate 48, also can be arranged on the position of staggering with baffle plate 48.

Embodiment 2

This embodiment is represented in Figure 10～Figure 14.Figure 10～Figure 13 representes the formation of the pith of evaporimeter, and Figure 14 representes the flowing of cold-producing medium in the evaporimeter of Figure 10.

Like Figure 10～shown in Figure 14; Following public attention side pipe row 11 at evaporimeter 50; Be arranged side by side four the pipe group 11A, 11B, 11C, the 11D that comprise a plurality of heat exchanger tubes 9 from right to left side; A side pipe row 12 of being in the wind are arranged side by side three of comprising a plurality of heat exchanger tubes 9 (lacking than the quantity of the pipe group of public attention side pipe row 11 down) pipe group 12A, 12B, 12C from left end to right-hand member.

In following public attention side two parts pipe portion 5,7, be respectively equipped with and pipe group 11A, 11B, 11C, the 11D equal number of following public attention side pipe row 11 and the subregion 51,52,53,54 and 55,56,57,58 that is communicated with the heat exchanger tube 9 of each pipe group 11A, 11B, 11C, 11D.Be provided with refrigerant inlet 22 in the following right part of the subregion 51 of the right-hand member of public attention side upper header portion 5.Down four pipe group 11A, 11B, 11C, the 11D of public attention side pipe row 11 are called first～the 4th pipe group from refrigerant inlet 22 side ends to the other end, and the subregion 51,52,53,54 and 55,56,57,58 that the heat exchanger tube 9 of first～the 4th pipe group 11A, 11B, 11C, 11D is communicated with is called first～the 4th subregion from refrigerant inlet 22 side ends to the other end.The 4th pipe group 11D down is positioned at the group of pipe farthest from refrigerant inlet 22 highest distance positions in public attention side pipe row 11, and the 3rd subregion 58 of following public attention side upper header portion 5 is following public attention side subregions farthest of the flow of refrigerant direction upstream side (upside) that is communicated with of the heat exchanger tube 9 of the 4th pipe group 11D.

A side two parts pipe portion 6,8 of being in the wind is respectively equipped with and pipe group 12A, 12B, the 12C equal number of last public attention side pipe row 12 and the subregion 59,61,62 and 63,64,65 that is communicated with the heat exchanger tube 9 of each pipe group 12A, 12B, 12C.The right part of the subregion 64 of the right-hand member of side upper header portion 6 (with refrigerant inlet 22 same ends) of being in the wind is provided with refrigerant outlet 27.Three pipe group 12A, 12B, the 12C of last public attention side pipe row 12 are called the 5th～the 7th pipe group from the end with refrigerant outlet 27 opposition sides to the end of refrigerant outlet side 27, and the subregion 59,61,62 and 63,64,65 that the heat exchanger tube 9 of the 5th～the 7th pipe group 12A, 12B, 12C is communicated with is called the 5th～the 7th subregion from the end with refrigerant outlet 27 opposition sides to the end of refrigerant outlet side 27.The 5th pipe group 12A is the group of pipe farthest from refrigerant outlet 27 highest distance positions that is positioned at that goes up in public attention side pipe row 12, and the 5th subregion 63 of last public attention side upper header portion 6 is last public attention side subregions farthest of the flow of refrigerant direction upstream side (upside) that is communicated with of the 5th pipe group 12A.

Have again; The total quantity of heat exchanger tube 9 that constitutes the first and second pipe group 11A, the 11B of public attention side pipe row 11 down equates with the quantity of the heat exchanger tube 9 that constitutes the 7th pipe group 12C that goes up public attention side pipe row 12, constitute public attention side pipe row 11 down the 3rd pipe group 11C and the 4th pipe group 11D heat exchanger tube 9 quantity respectively with formation upward the quantity of the heat exchanger tube 9 of the 6th pipe group 12B and the 5th pipe group 12A of public attention side pipe row 12 equate.In addition; The equal in length of the left and right directions of the 7th subregion 62,65 of the combined length of first subregion 51,55 of following public attention side two parts pipe portion 5,7 and the left and right directions of second subregion 52,56 and last public attention side two parts pipe portion 6,8, the length of the 3rd subregion 53,57 of following public attention side two parts pipe portion 5,7 and the left and right directions of the 4th subregion 54,58 respectively with the equal in length of the left and right directions of the 6th subregion 61,64 of last public attention side two parts pipe portion 6,8 and the 5th subregion 59,63.

Between first subregion 51 of following public attention side upper header portion 5 and second subregion 52 and be respectively arranged with partition wall 73 between the 3rd subregion 53 and the 4th subregion 54, thereby make first subregion 51 and second subregion 52 and the 3rd subregion 53 and the 4th subregion 54 be respectively non-connected state.In addition, second subregion 52 and the 3rd subregion 53 of following public attention side upper header portion 5 are connected state.

First subregion 55 and second subregion 56 of following public attention side lower collector pipe portion 7 are connected state.Between second subregion 56 that descends public attention side lower collector pipe portion 7 and the 3rd subregion 57, be provided with partition wall 74, thereby make two subregions 56,57 become non-connected state.In addition; As under following public attention side of public attention side lower collector pipe portion 7 farthest in the 4th subregion 58 of subregion, the shunting in second space 81 that is provided with the downside that separates with first space 82 that is divided into the upside that heat exchanger tube 9 faced in the 4th subregion 58 with first space 82 is with resistance parts 79.Between the 3rd subregion 57 and the 4th subregion 58 of following public attention side lower collector pipe portion 7, be provided with the mobile cut-out parts 84 that right-end openings is sealed and the cut-out cold-producing medium flows to first space 82 from the 3rd subregion 57 with first space 82 of the 4th subregion 58.In addition; The right part integral finish in second space 81 through making the 4th subregion 58; And second space 81 that makes the 3rd subregion 57 and the 4th subregion 58 becomes connected state, and cold-producing medium flows in second space 81 of the 4th subregion 58 from the 3rd subregion 57 adjacent with refrigerant inlet 22 sides of the 4th subregion 58.Here, the opening of the right part in second space 81 of the 4th subregion 58 becomes the intake section 80 in second space 81 that makes cold-producing medium flow into the 4th subregion 58.Have again, on shunting, on left and right directions, leave the compartment of terrain and be formed with a plurality of cold-producing mediums, thereby two spaces 81,82 are communicated with through hole 83 with resistance parts 79.

The 5th subregion 59 and the 6th subregion 61 of last public attention side upper header portion 6 become connected state.In addition, be provided with partition wall 75 between the 6th subregion 61 of a side upper header portion 6 of being in the wind and the 7th subregion 62, thereby make two subregions 61,62 become non-connected state.

Being in the wind is provided with partition wall 76 between the 5th subregion 63 and the 6th subregion 64 of a side lower collector pipe portion 8, thereby makes two subregions 63,64 become non-connected state.Be in the wind in the 7th subregion 65 of a side lower collector pipe portion 8; Be provided with the tabular shunting that is divided into space 65A and following space 65B in the 7th subregion 65 with resistance parts 42; On shunting, on left and right directions, leave the compartment of terrain and be formed with a plurality of cold-producing mediums through hole 43 with resistance parts 42.In addition; Be in the wind between the 6th subregion 64 and the 7th subregion 65 of a side lower collector pipe portion 8, be provided with the left end closure of openings of the last space 65A of the 7th subregion 65 and promote the tabular mobile promotion parts 44 that cold-producing medium flows to the following space 65B of the 7th subregion 65 from the 6th subregion 64.In addition, the left part integral finish of the following space 65B through making the 7th subregion 65, thus make the following space 65B of the 6th subregion 64 and the 7th subregion 65 become connected state, cold-producing medium is from flowing in the following space 65B of the 7th subregion 65 with the 6th subregion 64.Have again, also can on the promotion parts 44 that flow, form cold-producing medium and pass through the hole.

The 4th subregion 54 of following public attention side upper header portion 5 is communicated with through access 78 with the 5th subregion 59 of last public attention side upper header portion 6, and this access 78 is in more the keep left part setting of side of the partition wall 73 than partition wall 2a of first header 2.

Second space 81 of the 4th subregion 58 of following public attention side lower collector pipe portion 7 is communicated with through a plurality of access 77 with the 5th subregion 63 of last public attention side lower collector pipe portion 8, these a plurality of access 77 by at the intake section 80 than separating part 3a of second header 3, cut off more the keep left part of side of parts 84 and partition wall 76 and on left and right directions, leave the through hole that the compartment of terrain is provided with and constitute.

Here; Preferably; Be made as A with a plurality of cold-producing mediums of resistance parts 79 total sectional area through hole 83 will being arranged at shunting; The total sectional area of the 4th subregion 58 that is communicated with public attention side lower collector pipe portion 7 down with a plurality of cold-producing medium access 77 of the 5th subregion 63 of last public attention side lower collector pipe portion 8 is made as under the situation of B, satisfies the relation of B＞A.

Through each subregion 51～59,61～65, refrigerant inlet 22, refrigerant outlet 27 are set as above-mentioned, have the shunting of cold-producing medium through hole 83 with resistance parts 79, cut off parts 84, first space 82, second space 81, have the shunting of cold-producing medium through hole 43 with resistance parts 42, flow promote parts 44, go up space 65A, following space 65B, access 77 and access 78; The effluent that cold-producing medium is positioned at from the refrigerant inlet 22 any up and down in the heat exchanger tube 9 of the first pipe group 11A, the 3rd pipe group 11C and the 6th pipe group 12B is to opposition side; Here for flowing from the top down, these pipe groups 11A, 11C, 12B become sinking pipe group.In addition; Cold-producing medium at the second pipe group 11B, be positioned at the 4th pipe group 11D, be positioned at from the 5th pipe group 12A of refrigerant outlet 27 highest distance positions and the heat exchanger tube 9 of the 7th pipe group 12C and flow from bottom to top from refrigerant inlet 22 highest distance positions, these pipe groups 11B, 11D, 12A, 12C become upwelling pipe group.That is, the flow direction of the cold-producing medium in the heat exchanger tube 9 of the 5th pipe group 12A of the 4th pipe group 11D of following public attention side pipe row 11 and last public attention side pipe row 12 is an equidirectional.The first pipe group 11A become cold-producing medium in heat exchanger tube 9 from the side direction opposition side that refrigerant inlet 22 was positioned at any up and down, first path 66 for flowing from the top down here; The second pipe group 11B become cold-producing medium in heat exchanger tube 9 from bottom to top (with first path 66 in the other direction) alternate path 67 of flowing; The 3rd pipe group 11C becomes cold-producing medium (equidirectional with first path 66) the 3rd path 68 of flowing from the top down in heat exchanger tube 9; The the 4th and the 5th pipe group 11D, 12A become cold-producing medium in heat exchanger tube 9 from bottom to top (with first path 66 in the other direction) the four-way road 69 of flowing; The 6th pipe group 12B becomes cold-producing medium (equidirectional with first path 66) five-way road 71 of flowing from the top down in heat exchanger tube 9; The 7th pipe group 12C become cold-producing medium in heat exchanger tube 9 from the top down (with first path 66 in the other direction) the 6th path 72, the four-way roads 69 of flowing are that the 4th and the 5th pipe group 11D, the 12A of equidirectional constitutes through the flow direction that on direction of ventilation, is arranged side by side the cold-producing medium in the heat exchanger tube 9.And the cold-producing medium that flows into from refrigerant inlet 22 flows the heat exchanger tube 9 of first～the 6th path 66,67,68,69,71,72 through following two paths will describing successively, flows out from refrigerant outlet 27.First path is that last space 65A, the 7th pipe group 12C (the 6th path 32) and the 7th subregion 62, the second paths of following space 65B, the 7th subregion 65 of second space 81, the 5th subregion 63, the 5th pipe group 12A (four-way road 69), the 5th subregion 59, the 6th subregion 61, the 6th pipe group 12B (five-way road 71), the 6th subregion 64, the 7th subregion 65 of first subregion 51, the first pipe group 11A (first path 66), first subregion 55, second subregion 56, the second pipe group 11B (alternate path 67), second subregion 52, the 3rd subregion 53, the 3rd pipe group 11C (the 3rd path 68), the 3rd subregion 57, the 4th subregion 58 are that the Shang space 65A, the 7th pipe group 12C (the 6th path 32) of following space 65B, the 7th subregion 65 of first space 82, the 4th pipe group 11D (four-way road 69), the 4th subregion 54, the 5th subregion 59, the 6th subregion 61, the 6th pipe group 12B (five-way road 71), the 6th subregion 64, the 7th subregion 65 of second space 81, the 4th subregion 58 of first subregion 51, the first pipe group 11A (first path 66), first subregion 55, second subregion 56, the second pipe group 11B (alternate path 67), second subregion 52, the 3rd subregion 53, the 3rd pipe group 11C (the 3rd path 68), the 3rd subregion 57, the 4th subregion 58 is with the 7th subregion 62.

Above-mentioned evaporimeter 1 and compressor, together constitute kind of refrigeration cycle, be loaded into vehicle as vehicle air conditioning for example on the automobile as the condenser of refrigerant cooler with as the expansion valve of pressure reducer.When the work of vehicle air conditioning; The two-phase system cryogen of the gas-liquid mixed phase through compressor, condenser and expansion valve gets into down in first subregion 51 of public attention side upper header portion 5 through refrigerant inlet 22; Heat exchanger tube 9 through above-mentioned two passages at first～the 6th path 66,67,68,69,71,72 flows successively, flows out from refrigerant outlet 27.

And; Cold-producing medium is in the heat exchanger tube 9 of following public attention side pipe row 11 and in the heat exchanger tube 9 of last public attention side pipe row 12 between flow periods; Carry out heat exchange with the air (with reference to arrow X among Fig. 1) of ventilation gap through heat exchange core 4, air is cooled, and cold-producing medium becomes gas phase and flows out.

Here; In the 4th subregion 58 of following public attention side lower collector pipe portion 7; Be provided with the tabular shunting that is divided into first space 82 and second space 81 in the 4th subregion 58 with resistance parts 79; Shunting with resistance parts 79 on, on left and right directions, leave the compartment of terrain and be formed with a plurality of cold-producing mediums through hole 83, so apply by shunting and it is flowed to first space, the 82 interior resistances that produced with resistance parts 79 to flowing into cold-producing mediums in second space 81; Even the changes in flow rate of cold-producing medium also can suppress to flow into the cold-producing medium a large amount of inflows in the heat exchanger tube 9 that constitutes the 4th pipe group 11D on the four-way road 69 of public attention side pipe row 11 down in second space 81 of the 4th subregion 58.Therefore, the refrigerant amount in the heat exchanger tube 9 that flows into the 4th pipe group 11D and get into through cold-producing medium access 77 is flowed into after the 5th subregion 63 of going up public attention side lower collector pipe portion 8 constitute the refrigerant amount in the heat exchanger tube 9 of last the 5th pipe group 12A on the four-way road 69 of public attention side pipe row 12 even.Especially; If be made as A with a plurality of cold-producing mediums of resistance parts 79 total sectional area through hole 83 when being arranged at shunting; The total sectional area of second space 81 that is communicated with the 4th subregion 58 of public attention side lower collector pipe portion 7 down with a plurality of cold-producing medium access 77 of the 5th subregion 63 of last public attention side lower collector pipe portion 8 is made as under the situation of B; Satisfy the relation of B＞A, then make the refrigerant amount that flows at the 4th pipe group 11D and the 5th pipe group 12A homogenising effectively.

In embodiment 2, also can Fig. 7～promotion parts shown in Figure 9 be set in following public attention side lower collector pipe portion 7.

Embodiment 3

This embodiment is represented in Figure 15～Figure 17.Figure 15～Figure 17 representes the formation of the pith of evaporimeter.

Like Figure 15～shown in Figure 17; Public attention side is not provided with shunting with resistance parts 36 in the 3rd subregion 17 of subregion farthest under the conduct of public attention side upper header portion 5 under following public attention side of evaporimeter 90, between second subregion 16 of public attention side upper header portion 5 down and the 3rd subregion 17, the cut-out parts 41 that flow not being set yet.Therefore, second subregion 16 and the 3rd subregion 17 become whole connected state.In addition, the 4th subregion 23 of the 3rd subregion 17 of following public attention side upper header portion 5 and last public attention side upper header portion 5 is communicated with through more the keep left interconnecting part 91 of part of side of the partition wall 35 than separating part 2a that is arranged at first header 2.

Preferably, constitute total passage sections of refrigerant passage of heat exchanger tube 9 of the 5th whole pipe group 12B of four-way road 32 long-pending be constitute public attention side in the conduct of the 3rd path 31 farthest total passage sections of the refrigerant passage of the heat exchanger tube 9 of the 4th pipe group 12A of pipe group long-pending more than 60%.In addition; Constitute total passage sections of the long-pending refrigerant passage that is respectively the heat exchanger tube 9 that constitutes previous path 28,29 of total passage sections of refrigerant passage of heat exchanger tube 9 of the second and the 3rd path 29,31 long-pending more than, and it is greatly long-pending to constitute total passage sections of the long-pending refrigerant passage than the heat exchanger tube 9 that constitutes the 3rd path 31 of total passage sections of refrigerant passage of heat exchanger tube 9 on four-way road 32.Have, the total passage sections integration of refrigerant passage of heat exchanger tube 9 that constitutes the second and the 3rd path 29,31 is greatly not long-pending than total passage sections of the refrigerant passage of the heat exchanger tube 9 that constitutes previous path 28,29 again.

In addition; Total passage sections of the refrigerant passage of the heat exchanger tube 9 of the 3rd pipe group 11C of pipe group is long-pending and constitute in the conduct of the 3rd path 31 public attention side long-pending equating of total passage sections of the refrigerant passage of the heat exchanger tube 9 of the 4th pipe group 12A of pipe group farthest farthest to constitute public attention side under the conduct of the 3rd path 31, and total passage sections integration of the refrigerant passage of the heat exchanger tube 9 of the third and fourth pipe group 11C, the 12A not total passage sections than the refrigerant passage of the heat exchanger tube 9 that constitutes alternate path 29 is long-pending little.

Here, all heat exchanger tubes 9 are identical formation, and the total that the passage sections of the quantity of the refrigerant passage of each heat exchanger tube 9 and a plurality of refrigerant passage of heat exchanger tube 9 is amassed is identical.And, through adjusting the bar number of the heat exchanger tube 9 that constitutes the first～the four-way road 28,29,31,32, decide total passage sections of the refrigerant passage of the whole heat exchanger tubes 9 that constitute the first～the four-way road 8,29,31,32 to amass.Promptly; The quantity that constitutes the heat exchanger tube 9 on four-way road 32 is more than 60% of quantity that constitutes the heat exchanger tube 9 of the 4th pipe group 12A of public attention side pipe group in the conduct of the 3rd path 17; The quantity that constitutes the heat exchanger tube 9 of the second and the 3rd path 29,31 is respectively more than the quantity of the heat exchanger tube 9 that constitutes previous path 28,29, and it is more than the quantity of the heat exchanger tube 9 of formation the 3rd path 31 to constitute the quantity of heat exchanger tube 9 on four-way road 32.In addition, the 3rd pipe group 11C that constitutes the 3rd path 31 is identical with the quantity of the heat exchanger tube 9 of the 4th pipe group 12A, and the quantity of the heat exchanger tube 9 of the third and fourth pipe group 11C, 12A is lacked than the quantity of the heat exchanger tube 9 that constitutes alternate path 28 respectively.

Other formations of evaporimeter 90 are identical with the evaporimeter 1 of embodiment 1.

In evaporimeter 90, the cold-producing medium that flows into from refrigerant inlet 22 flows the heat exchanger tube 9 on the first～the four-way road 28,29,31,32 through following two paths will describing successively, flows out from refrigerant outlet 27.First path is that last space 26A, the 5th pipe group 12B (four-way road 32) and the 5th subregion 24, the second paths of following space 26B, the 5th subregion 26 of first subregion 15, the first pipe group 11A (first path 28), first subregion 18, second subregion 19, the second pipe group 11B (alternate path 29), second subregion 16, the 3rd subregion 17, the 4th subregion 23, the 4th pipe group 12A (the 3rd path 31), the 4th subregion 25, the 5th subregion 26 are first subregion 15, the first pipe group 11A (first path 28), first subregion 18, second subregion 19, the second pipe group 11B (alternate path 29), second subregion 16, the 3rd subregion 17, the 3rd pipe group 11C (the 3rd path 31), the 3rd subregion 21, the 4th subregion 25, the following space 26B of the 5th subregion 26, the last space 26A of the 5th subregion 26, the 5th pipe group 12B (four-way road 32) and the 5th subregion 24.

In the evaporimeter 1 of above-mentioned embodiment 1; Same with the evaporimeter 90 of embodiment 3; Preferably, constitute total passage sections of refrigerant passage of heat exchanger tube 9 of the 5th whole pipe group 12B of four-way road 32 long-pending be constitute public attention side in the conduct of the 3rd path 31 farthest total passage sections of the refrigerant passage of the heat exchanger tube 9 of the 4th pipe group 12A of pipe group long-pending more than 60%.In addition; Preferably; Constitute total passage sections of the long-pending refrigerant passage that is respectively the heat exchanger tube 9 that constitutes previous path 28,29 of total passage sections of refrigerant passage of heat exchanger tube 9 of the second and the 3rd path 29,31 long-pending more than, and it is greatly long-pending to constitute total passage sections of the long-pending refrigerant passage than the heat exchanger tube 9 that constitutes the 3rd path 31 of total passage sections of refrigerant passage of heat exchanger tube 9 on four-way road 32.Have, preferred, the total passage sections integration of refrigerant passage of heat exchanger tube 9 that constitutes the second and the 3rd path 29,31 is greatly not long-pending than total passage sections of the refrigerant passage of the heat exchanger tube 9 that constitutes previous path 28,29 again.

Have again; Preferably; Total passage sections of the refrigerant passage of the heat exchanger tube 9 of the 3rd pipe group 11C of pipe group is long-pending and constitute in the conduct of the 3rd path 31 public attention side long-pending equating of total passage sections of the refrigerant passage of the heat exchanger tube 9 of the 4th pipe group 12A of pipe group farthest farthest to constitute public attention side under the conduct of the 3rd path 31, and total passage sections integration of the refrigerant passage of the heat exchanger tube 9 of the third and fourth pipe group 11C, the 12A not total passage sections than the refrigerant passage of the heat exchanger tube 9 that constitutes alternate path 29 is long-pending little.Promptly; Same with the evaporimeter 90 of embodiment 3; Use the long-pending identical heat exchanger tube 9 of total of passage sections of quantity and a plurality of refrigerant passage of each heat exchanger tube 9 of the refrigerant passage of identical formation, each heat exchanger tube 9; So, decide total passage sections of the refrigerant passage of the whole heat exchanger tubes 9 that constitute the first～the four-way road 28,29,31,32 to amass through adjusting the quantity of the heat exchanger tube 9 that constitutes the first～the four-way road 28,29,31,32.

In addition, even in the evaporimeter 50 of above-mentioned embodiment 2, also preferably be configured identical therewith.

In the accompanying drawing of above-mentioned three embodiments of expression, the spacing of the size of evaporimeter, the quantity of heat exchanger tube and heat exchanger tube etc. are different with actual product.

In above-mentioned three embodiments; The collector portion of the flow direction upstream side of first path and same flow direction downstream collector portion are arranged to the former are positioned at the top; But; Be not limited thereto, also can be in contrast, the collector portion of the flow direction upstream side of first path and same flow direction downstream collector portion are arranged to the former are positioned at the below.That is, also can be arranged to put upside down with above-mentioned embodiment above-below direction.

Have again; The evaporimeter that the utility model relates to is applicable to the so-called stack Type evaporator of following form; In this evaporimeter; Shape configuration makes a pair of discoid plate relatively with circumference solder and a plurality of flat ducted body that constitutes each other side by side; Each flat ducted body be arranged on arrange on the direction of ventilation in upwardly extending two heat exchanger tubes of upper and lower and the collector formation portion that is communicated with the two ends up and down of two heat exchanger tubes; And flat ducted body is carried out solder each other makes two collector formation portions up and down of whole flat ducted bodies be communicated with separately from each other; Thereby be included in that upper and lower extends upward and with the rectangular direction of direction of ventilation on leave a plurality of heat exchanger tubes of compartment of terrain configuration pipe be listed in and be arranged side by side two row on the direction of ventilation, and the collector formation portion through whole flat ducted bodies, and be provided with down following public attention side that two ends were communicated with up and down that the pipe of public attention side and last public attention side is listed as and last public attention side two parts pipe portion.

Claims (24)

1. evaporimeter possesses: be included in that upper and lower extends upward and with the rectangular direction of direction of ventilation on two pipe row leaving a plurality of heat exchanger tubes of compartment of terrain configuration and on direction of ventilation, be arranged side by side; Be arranged at down following public attention side two parts pipe portion of the both sides up and down of public attention side pipe row; With last public attention side two parts pipe portion of the both sides up and down that are arranged at public attention side pipe row,

At two pipe row a plurality of pipe groups that comprise a plurality of heat exchanger tubes are set respectively; Be provided with the subregion of the number of the pipe group of following public attention side pipe row and the heat exchanger tube of each pipe group that time public attention side pipe is listed as in following public attention side two parts pipe portion and be communicated with each subregion; A side two parts pipe portion of being in the wind is provided with the subregion of the number of the pipe group of last public attention side pipe row and the heat exchanger tube of going up each pipe group of public attention side pipe row and is communicated with each subregion; The subregion of one end of any the collector portion in following public attention side two parts pipe portion is provided with refrigerant inlet; The subregion with the same end of refrigerant inlet with the collector portion following public attention side collector portion same side that is provided with refrigerant inlet in the side two parts pipe portion of being in the wind is provided with refrigerant outlet; The flow direction of the cold-producing medium that the heat exchanger tube of the adjacent tubes group in following public attention side pipe row and the last public attention side pipe row is interior is different; The flow direction of the cold-producing medium of the flow direction of the cold-producing medium of the heat exchanger tube that is arranged in the group of pipe farthest that leaves refrigerant inlet position farthest in following public attention side pipe row and the heat exchanger tube that is positioned at the group of pipe farthest that leaves refrigerant outlet position farthest of last public attention side pipe row is an equidirectional; By on direction of ventilation, be arranged side by side and heat exchanger tube in the flow direction of cold-producing medium be equidirectional above-mentioned two farthest the pipe group constitute a path; And each the pipe group of residue by during public attention side pipe row and last public attention side pipe are listed as down constitutes a path; Flow into the cold-producing medium refrigerant outlet outflow of public attention side collector portion on whole paths flow and pass through successively of public attention side collector portion down from refrigerant inlet; This evaporimeter is characterised in that

Constitute comprise two farthest total passage sections of the long-pending refrigerant passage for the heat exchanger tube that constitutes the previous path that leans on upstream side separately respectively of path and total passage sections of the refrigerant passage of the heat exchanger tube of the previous path that leans on upstream side that constitutes this path of pipe group long-pending more than, constitute and comprise two total passage sections of the refrigerant passage of the heat exchanger tube of a back path that leans on the downstream of the path of pipe group is long-pending farthest and comprise two total passage sections of the refrigerant passage of the heat exchanger tube of pipe group is long-pending big farthest than constituting.

2. evaporimeter according to claim 1 is characterized in that,

Constitute comprise two total passage sections of the refrigerant passage of the heat exchanger tube of a back path that leans on the downstream of the path of pipe group be long-pending farthest be go up public attention side farthest total passage sections of the refrigerant passage of the heat exchanger tube of pipe group long-pending more than 60%.

3. evaporimeter according to claim 1 is characterized in that,

Following public attention side is long-pending and the last public attention side of total passage sections of the refrigerant passage of the heat exchanger tube of pipe group long-pending equating of total passage sections of the refrigerant passage of the heat exchanger tube of pipe group farthest farthest, following public attention side and last public attention side farthest the refrigerant passage of the heat exchanger tube of pipe group total passage sections integration not than formation comprise two farthest total passage sections of the refrigerant passage of the heat exchanger tube of the pipe group of the previous path that leans on upstream side of the path of pipe group amass little.

4. evaporimeter according to claim 1 is characterized in that,

Constitute comprise two farthest total passage sections integration of path and the refrigerant passage of the heat exchanger tube of the previous path that leans on upstream side that constitutes this path of pipe group the total passage sections than the refrigerant passage of the heat exchanger tube of the previous path that leans on upstream side that constitutes this path is long-pending not big.

5. evaporimeter according to claim 1 is characterized in that,

All heat exchanger tube is identical formation; The total that the passage sections of the quantity of the refrigerant passage of each heat exchanger tube and a plurality of refrigerant passage of each heat exchanger tube is amassed is identical; The radical that constitutes the heat exchanger tube of each path through adjustment decides total passage sections of refrigerant passage of the whole heat exchanger tubes that constitute each path long-pending, and following public attention side and last public attention side quantity of the heat exchanger tube of pipe group farthest are identical.

6. evaporimeter according to claim 1 is characterized in that,

The subregion that does not form refrigerant outlet in the subregion of public attention side two parts pipe portion on heat exchanger tube was communicated with of final path; Be provided be divided in this subregion first space that heat exchanger tube faces and with the by-passing parts in second space of first spatial separation, on by-passing parts, be formed with cold-producing medium and pass through the hole.

7. evaporimeter according to claim 6 is characterized in that,

Have the subregion that is provided with by-passing parts on public attention side collector portion, be provided with the mobile promotion parts that promote that cold-producing medium flows to said second space from the subregion adjacent with this subregion.

8. evaporimeter according to claim 1 is characterized in that,

Refrigerant inlet is arranged at down public attention side upper header portion, and refrigerant outlet is arranged at public attention side upper header portion.

9. evaporimeter according to claim 1 is characterized in that,

At following public attention side pipe row, be arranged side by side first～the 3rd pipe group from the refrigerant inlet side end to the other end side, a side pipe row of being in the wind are arranged side by side the 4th and the 5th pipe group from the end of an opposite side with the refrigerant outlet side to the end of refrigerant outlet side,

In following public attention side two parts pipe portion; Be respectively arranged with first～the 3rd subregion that heat exchanger tube was communicated with of first～the 3rd pipe group; A side two parts pipe portion of being in the wind; Be respectively arranged with the 4th and the 5th subregion that heat exchanger tube was communicated with of the 4th and the 5th pipe group; Be provided with refrigerant inlet at following first subregion of any collector portion up and down of public attention side, and the 5th subregion that is positioned at the collector portion that is provided with refrigerant inlet one side in any up and down of a side of being in the wind is provided with refrigerant outlet

First pipe consist of cold-producing medium in heat exchanger tube from the effluent that refrigerant inlet was positioned at any up and down to first path of opposition side; Second pipe consists of the alternate path that cold-producing medium flows with first path in the other direction in heat exchanger tube; Third and fourth the pipe consist of cold-producing medium in heat exchanger tube with equidirectional the 3rd mobile path of first path; The 5th pipe consists of the four-way road that cold-producing medium flows with first path in the other direction in heat exchanger tube, the 3rd path is that the third and fourth pipe group of equidirectional constitutes through the flow direction that on direction of ventilation, is arranged side by side the cold-producing medium in the heat exchanger tube.

10 An evaporator, comprising: including in the vertical direction extends at right angles with the direction of the ventilation spaced plurality of heat transfer tubes are arranged, and the ventilation direction of the two tube rows arranged side by side; Set on the leeward side of the upper and lower sides of the tube row downwind side of the upper and lower header portion; cephalic tube provided on the windward side of the upper and lower row upwind and down two cephalic header portion, the two columns were set, including a plurality of tubes of a plurality of tube group, the lower side of the upper and lower limelight header portion is provided with a row of the leeward side tube of the tube group number and the same number of partitions the leeward side of the tube rows of tubes in each tube group communicating with the district, in the upwind and down two cephalic header portion is provided with upper hand cephalic tube column tube group number and the same number of partitions upwind cephalic tube column groups each tube tubes connected with the district, the lower side of the upper and lower thunder header portion of any one set of tube end portion is provided with a refrigerant inlet partition, in the upwind and down two sets head side tube portion is provided in the refrigerant inlet and the leeward side of the same set of tube portion a manifold portion side refrigerant inlet and the same side of the partition is provided with a refrigerant outlet in the leeward side of the tube row refrigerant inlet located farthest from the farthest position of the heat transfer tubes of the tube group of the refrigerant flow direction and advantages of the head-side tube row refrigerant outlet located farthest from the farthest position of the tubes within the tube assembly direction of flow of the refrigerant in the same direction, the direction of the ventilation tubes disposed side by side and the refrigerant The flow direction is the same direction as far as the two groups form a passage tube, characterized in that the evaporator,

At following public attention side of the following flow of refrigerant direction upstream side that heat exchanger tube was communicated with of the group of pipe farthest of public attention side pipe row subregion farthest; Be provided with this time public attention side be divided in the subregion farthest first space that heat exchanger tube faces and with first spatial separation and cold-producing medium from following public attention side farthest the shunting in second space that flows into of the adjacent subregion of refrigerant inlet side of subregion use the resistance parts; Form cold-producing medium through the hole in shunting on the resistance parts, following public attention side farthest the flow of refrigerant direction upstream side that heat exchanger tube was communicated with of second space and the group of pipe farthest that last public attention side pipe is listed as of subregion last public attention side farthest subregion be communicated with by the cold-producing medium access.

11. evaporimeter according to claim 10 is characterized in that,

Be provided with following public attention side collector portion of subregion farthest, be provided with and cut off the downward public attention side of the cold-producing medium mobile mobile cut-out parts in first space of subregion farthest.

12. evaporimeter according to claim 10 is characterized in that,

The total sectional area of cold-producing medium through the hole is made as A, the total sectional area of cold-producing medium access is being made as under the situation of B, satisfying the relation of B＞A.

13. evaporimeter according to claim 10 is characterized in that,

Possess and promote cold-producing medium from second space of the subregion promotion parts that public attention side flows in the subregion farthest that make progress farthest of public attention side down.

14. evaporimeter according to claim 13 is characterized in that,

Promote that parts are arranged at public attention side collector portion of subregion farthest that is provided with down.

15. evaporimeter according to claim 14 is characterized in that,

Promote parts to comprise to be arranged at cold-producing medium to flow into public attention side down following public attention side of the intake section in second space of subregion and the baffle plate of the following public attention side inflow of obstruction cold-producing medium in said second space farthest.

16. evaporimeter according to claim 14 is characterized in that,

Promote parts to comprise to be arranged at down public attention side farthest the orientation of the heat exchanger tube in second space of subregion pars intermedia and be positioned at part and the obstruction cold-producing medium of heat exchanger tube side baffle plate to the heat exchanger tube side inflow in said second space.

17. evaporimeter according to claim 10 is characterized in that,

At following public attention side pipe row, be arranged side by side first～the 3rd pipe group from the refrigerant inlet side end to the other end side, a side pipe row of being in the wind are arranged side by side the 4th and the 5th pipe group from the end of an opposite side with the refrigerant outlet side to the end of refrigerant outlet side,

In following public attention side two parts pipe portion; Be respectively arranged with first～the 3rd subregion that heat exchanger tube was communicated with of first～the 3rd pipe group; A side two parts pipe portion of being in the wind; Be respectively arranged with the 4th and the 5th subregion that heat exchanger tube was communicated with of the 4th and the 5th pipe group; Be provided with refrigerant inlet at following first subregion of any collector portion up and down of public attention side, and the 5th subregion that is positioned at the collector portion that is provided with refrigerant inlet one side in any up and down of a side of being in the wind is provided with refrigerant outlet

First pipe consists of cold-producing medium and in heat exchanger tube, is positioned at first path of an effluent to opposition side from the refrigerant inlet any up and down; Second pipe consists of the alternate path that cold-producing medium flows with first path in the other direction in heat exchanger tube; Third and fourth the pipe consist of cold-producing medium in heat exchanger tube with equidirectional the 3rd mobile path of first path; The 5th pipe consists of the four-way road that cold-producing medium flows with first path in the other direction in heat exchanger tube; The 3rd path is that the third and fourth pipe group of equidirectional constitutes by the flow direction that on direction of ventilation, is arranged side by side the cold-producing medium in the heat exchanger tube

The 3rd pipe group of following public attention side pipe row is pipe groups farthest; The 3rd subregion of the collector portion that is provided with refrigerant inlet one side about following public attention side in the collector portion of any is the subregion farthest of the flow of refrigerant direction upstream side that heat exchanger tube was communicated with of the 3rd pipe group; And the resistance parts are used in the shunting that in the 3rd subregion is provided with the 3rd subregion, is divided into first space and second space, and cold-producing medium flows into second space of the 3rd subregion from second subregion of the collector portion that is provided with refrigerant inlet one side.

18. evaporimeter according to claim 10 is characterized in that,

At following public attention side pipe row, be arranged side by side first～the 4th pipe group from the refrigerant inlet side end to the other end side, a side pipe row of being in the wind are arranged side by side the 5th～the 7th pipe group from the end of an opposite side with the refrigerant outlet side to the end of refrigerant outlet side,

In following public attention side two parts pipe portion; Be respectively equipped with first～the 4th subregion that heat exchanger tube was communicated with of first～the 4th pipe group; A side two parts pipe portion of being in the wind is respectively equipped with the 5th～the 7th subregion that heat exchanger tube was communicated with of the 5th～the 7th pipe group, is provided with refrigerant inlet at first subregion of any collector portion up and down of public attention side down; And up and down the 7th subregion that is positioned at the collector portion that is provided with refrigerant inlet one side in any of a side of being in the wind is provided with refrigerant outlet

First pipe consists of cold-producing medium and in heat exchanger tube, is positioned at first path of an effluent to opposition side from the refrigerant inlet any up and down; Second pipe consists of the alternate path that cold-producing medium flows with first path in the other direction in heat exchanger tube; The 3rd the pipe consist of cold-producing medium in heat exchanger tube with equidirectional the 3rd mobile path of first path; The the 4th and the 5th pipe consists of the four-way road that cold-producing medium flows with first path in the other direction in heat exchanger tube; The 6th the pipe consist of cold-producing medium in heat exchanger tube with the equidirectional mobile five-way road of first path; The 7th pipe consists of the 6th path that cold-producing medium flows with first path in the other direction in heat exchanger tube, the four-way road is that the 4th and the 5th pipe group of equidirectional constitutes through the flow direction that on direction of ventilation, is arranged side by side the cold-producing medium in the heat exchanger tube

The 4th pipe group of following public attention side pipe row is pipe groups farthest; The 4th subregion of the collector portion of the side opposite with being provided with refrigerant inlet one side about following public attention side in the collector portion of any is the subregion farthest of the flow of refrigerant direction upstream side that heat exchanger tube was communicated with of the 4th pipe group; And the resistance parts are used in the shunting that in the 4th subregion is provided with the 4th subregion, is divided into first space and second space, and cold-producing medium flows into second space of the 4th subregion from the 3rd subregion of the collector portion of a side opposite with a side that is provided with refrigerant inlet.

19. evaporimeter according to claim 10 is characterized in that,

Refrigerant inlet is arranged at down public attention side upper header portion, and refrigerant outlet is arranged at public attention side upper header portion.

20. evaporimeter according to claim 10 is characterized in that,

Constitute comprise two farthest total passage sections of the refrigerant passage of the long-pending heat exchanger tube that is respectively the previous path that leans on upstream side that constitutes this path of path and total passage sections of the refrigerant passage of the heat exchanger tube of the previous path that leans on upstream side that constitutes this path of pipe group long-pending more than, constitute and comprise two total passage sections of the refrigerant passage of the heat exchanger tube of a back path that leans on the downstream of the path of pipe group is long-pending farthest and comprise two total passage sections of the refrigerant passage of the heat exchanger tube of pipe group is long-pending big farthest than constituting.

21. evaporimeter according to claim 20 is characterized in that,

Constitute comprise two total passage sections of the refrigerant passage of the heat exchanger tube of a back path that leans on the downstream of the path of pipe group be long-pending farthest be go up public attention side farthest total passage sections of the refrigerant passage of the heat exchanger tube of pipe group long-pending more than 60%.

22. evaporimeter according to claim 20 is characterized in that,

Following public attention side is long-pending and the last public attention side of total passage sections of the refrigerant passage of the heat exchanger tube of pipe group long-pending equating of total passage sections of the refrigerant passage of the heat exchanger tube of pipe group farthest farthest, following public attention side and last public attention side farthest the refrigerant passage of the heat exchanger tube of pipe group total passage sections integration not than formation comprise two farthest total passage sections of the refrigerant passage of the heat exchanger tube of the pipe group of the previous path that leans on upstream side of the path of pipe group amass little.

23. evaporimeter according to claim 20 is characterized in that,

Constitute comprise two farthest total passage sections integration of path and the refrigerant passage of the heat exchanger tube of the previous path that leans on upstream side that constitutes this path of pipe group the total passage sections than the refrigerant passage of the heat exchanger tube of the previous path that leans on upstream side that constitutes this path is long-pending not big.

24. evaporimeter according to claim 20 is characterized in that,

All heat exchanger tube is identical formation; The total that the passage sections of the quantity of the refrigerant passage of each heat exchanger tube and a plurality of refrigerant passage of each heat exchanger tube is amassed is identical; The radical that constitutes the heat exchanger tube of each path through adjustment decides total passage sections of refrigerant passage of the whole heat exchanger tubes that constitute each path long-pending, and following public attention side and last public attention side quantity of the heat exchanger tube of pipe group farthest are identical.

Images