CN103162470B - Double-pipe heat exchanger equipped with multi-directional connector and vehicle air conditioner equipped with same - Google Patents

Abstract

The present invention relates to a double tube heat exchanger and a vehicle air conditioner including the same, in which a connector constituting the double tube heat exchanger includes a first module and a second module, and has a multi-directional connector structure in which a position where a first fluid supply tube and inner and outer tubes are coupled and a position where a second fluid supply tube is coupled can be freely set.

Description

Double-pipe heat exchanger equipped with multi-directional connector and vehicle air conditioner equipped with same

technical field

The present invention relates to a double-pipe heat exchanger and a vehicle air-conditioning device equipped therewith, and more specifically relates to a double-pipe heat exchanger and a vehicle air-conditioning device equipped therewith. The double-pipe heat exchanger can freely Forming the connection relationship between the connectors of the tubes and the double sleeves, even in a narrow space, can easily complete the assembly of the heat exchanger including the double sleeves, which feed to the inner tube and the outer tube. Fluid supplied by space. the

Background technique

Heat exchangers of various structures are used as vehicle air conditioners, and among them, heat exchangers with a double-pipe structure are widely used. A heat exchanger with a double-tube structure commonly used, as described in Patent Document 1, includes: an inner tube that forms a low-pressure flow path for flowing a low-temperature and low-pressure refrigerant; The above is combined with a double sleeve structure to form a high-pressure flow path for flowing high-temperature and high-pressure refrigerant; and a high-temperature and high-pressure fluid inlet and outlet pipe, which allows the high-temperature and high-pressure refrigerant to flow into and discharge from the space between the inner pipe and the outer pipe. the

In this double-tube heat exchanger, heat exchange is made between a low-temperature and low-pressure refrigerant flowing through the inner tube and a high-temperature and high-pressure refrigerant flowing in the space between the inner tube and the outer tube. the

On the one hand, in the case of such a conventional double-tube heat exchanger, in order to connect the high-temperature and high-pressure fluid inlet and outlet pipes and the external pipe, it is necessary to use a connector. As disclosed in Patent Document 1, a connection is formed on the high-temperature and high-pressure fluid inlet and outlet pipes. device so that it binds in a direction perpendicular to the outer tube. the

Prior art literature

Patent Documents

Patent Document 1 Korean Patent Publication No. 2009-0029891

Contents of the invention

technical problem to be solved

On the one hand, in the case of a double-pipe heat exchanger used as an air conditioner for a vehicle, it is necessary to minimize the space required for installation due to the space limitation of the installation place. When connecting pipes to other components of the device, it is necessary to broaden the degree of freedom in design. the

In the case of the conventional double-pipe heat exchanger, since the inlet and outlet pipes of the high-temperature and high-pressure fluid combined with the outer pipe can only be connected vertically to the outer pipe, when determining the double-pipe heat exchanger or the inlet and outlet pipe of the high-temperature and high-pressure fluid There are considerable restrictions on the setting position of the . the

Therefore, in the case of the conventional double-pipe heat exchanger, when it is installed on a vehicle, various design changes cannot be made, and there is a problem that it is difficult to minimize the installation space. the

The present invention is used to solve the problems of the prior art, and aims to provide a double-pipe heat exchanger, which enables the inlet and outlet pipes of high-temperature and high-pressure fluid to be combined in multiple directions and angles on the outside of the double-pipe heat exchanger. pipe on. the

Technical solutions

In order to achieve the above-mentioned purpose, the double-tube heat exchanger according to an embodiment of the present invention is characterized in that it includes: an outer tube formed with a plurality of tubes protruding from the inner peripheral surface in the center direction and extending along the length direction a protruding portion formed in a linear shape; an inner tube inserted into the outer tube; a first fluid supply tube joined to one end of the inner tube; and a connector equipped with a The outer pipe, the inner pipe, and the space of the first fluid supply pipe; the connector includes: a first module, which has a first opening, which is inserted into the first fluid supply pipe; a second opening, which is inserted into the outer pipe and the inner pipe; a first connecting passage connecting the first opening and the second opening and forming a space where the inner pipe and the first fluid supply pipe are joined; a second module which It is formed on the upper part of the first module, and has at least 3 sides facing different directions; a connection port is formed on one of the at least 3 sides of the second module, and the second module is inserted and fixed on the connection port. The fluid supply pipe has a second connection passage formed inside the second module, and the second connection passage connects the connection port and the first connection passage of the first module. the

Thus, the double-tube heat exchanger according to one embodiment of the present invention is connected with the supply to the space between the inner tube and the outer tube by using a connector having an additional second module connected to the second fluid supply tube. Regardless of the position of the second fluid supply pipe for the second fluid, a double-tube heat exchanger can be formed. the

According to an embodiment of the double-tube heat exchanger of the present invention, the inner tube may include a plurality of protrusions protruding from the inner peripheral surface toward the center and extending in a linear shape along the length direction, like the outer tube. the

On the one hand, the connection port can be formed with a structure that has a certain inclination angle with respect to the first fluid supply pipe when the second fluid supply pipe is inserted and fixed to the connection port, or can be formed as a structure of the second module that is formed with the connection port. The side surface has a certain inclination angle with a plane parallel to the first fluid supply pipe. the

By making the structure of the connection port or the side surface of the second module forming the connection port inclined in this way, it is possible to increase the degree of freedom in the position of the second fluid supply pipe when forming a heat exchanger including double sleeves. the

In addition, the connection port may be formed in a structure in which the second fluid supply pipe is inserted and fixed into the connection port so that the second fluid supply pipe is parallel to the first fluid supply pipe, or may be formed in the second fluid supply pipe. Any one of the side faces of the module that is different from the direction in which the first and second openings face. the

On the one hand, the first fluid supply pipe joined to the inner pipe may include a plurality of protrusions protruding from the inner peripheral surface in the center direction and extending in a straight line along the length direction of the first fluid supply pipe, which can make Specifications such as the inner diameter have the same specifications as the inner pipe. Also, looking at the specifications of the connector, the diameter of the first connection passage of the connector is larger than the diameter of the first opening and smaller than the diameter of the second opening. the

Beneficial effect

According to the double-tube heat exchanger of the present invention, the first fluid supply pipe that supplies fluid between the outer tube and the inner tube can have multiple directions and multi-angles combined with the outer tube, which can more easily integrate the double-tube heat exchanger Arranged in the minimum space, it has the effect of being able to carry out various mechanical deformations when setting up the double-tube heat exchanger. the

In addition, according to the double-tube heat exchanger of the present invention, the outer tube and the inner tube are respectively equipped with protruding parts extending in the longitudinal direction, so that the fluid flowing through the inner tube and the fluid flowing between the outer tube and the inner tube are improved. The heat exchange efficiency between fluids also has the effect of improving the efficiency of the entire heat exchanger. the

Description of drawings

FIG. 1 is a perspective view showing outer tubes and inner tubes constituting a double-tube heat exchanger according to one embodiment of the present invention. the

2a and 2b are perspective views showing connectors constituting a double-pipe heat exchanger according to an embodiment of the present invention. the

3a and 3b are views showing a side view and a section of a connector constituting a double-pipe heat exchanger according to an embodiment of the present invention. the

Fig. 4 is a perspective view showing a part of a double-pipe heat exchanger according to an embodiment of the present invention. the

Fig. 5 is a perspective view of a cross section cut along A-A of the perspective view shown in Fig. 4 . the

6 is a cross-sectional view showing a section of a connector constituting a double-pipe heat exchanger according to another embodiment of the present invention. the

7 is a sectional view showing a section of a connector constituting a double-pipe heat exchanger according to still another embodiment of the present invention. the

8a and 8b are perspective views showing connectors constituting a double-pipe heat exchanger according to another embodiment of the present invention. the

9a and 9b are side views and cross-sectional views showing a connector constituting a double-pipe heat exchanger according to still another embodiment of the present invention. the

Fig. 10 is a perspective view showing a part of a double-pipe heat exchanger according to still another embodiment of the present invention. the

Fig. 11 is a perspective view showing a cross-section of a double-pipe heat exchanger according to still another embodiment of the present invention. the

Detailed ways

Next, specific embodiments of the double-tube heat exchanger according to the present invention will be described with reference to the accompanying drawings. the

The present invention is not limited to the descriptions of the embodiments described below, and it is obvious that various modifications are possible within the range not departing from the technical idea of the present design. the

On the one hand, when describing the embodiments, descriptions of technical contents that are known in the technical field to which the present invention belongs or that are not directly related to the technical idea of the present invention will be omitted. In addition, some components are exaggerated, omitted, or schematically shown in the drawings for the purpose of more clearly explaining the technical idea of the present invention by omitting unnecessary descriptions unrelated to the technical idea of the present invention. the

FIG. 1 is a perspective view showing an outer tube 100 and an inner tube 200 constituting a double-tube heat exchanger according to an embodiment of the present invention. the

The inner tube 200 is a tube through which the first fluid flows inside. In the vehicle air conditioner, the first fluid may be a low-temperature refrigerant sucked into the compressor or a high-temperature refrigerant supplied to the inlet side of the expansion valve. The inner tube 200 is joined with a first fluid supply tube 400 of the same diameter as shown in FIG. 4 , and the first fluid as described above is supplied from the first fluid supply tube 400 . the

As shown in FIG. 1 , the inner pipe 200 has a protruding portion 210 protruding from the inner peripheral surface at a certain height in the direction of the center of the pipe. The protruding portion 210 is formed on the inner peripheral surface of the inner pipe 200 in a linear shape extending along the length direction of the pipe. The formation height of the protruding portion 210 is not particularly limited. The protrusions 210 are separated from each other by a certain distance on the inner peripheral surface of the inner pipe 200 , and preferably formed in plurality in order to improve heat transfer efficiency. Although the inner tube 200 shown in FIG. 1 has such a protruding portion 210, the inner tube 200 constituting the double-tube heat exchanger according to the present invention does not necessarily have such a protruding portion 210, and an inner tube without a protruding portion structure is also acceptable. It can be used in the structure of the double-pipe heat exchanger according to the present invention. the

The outer tube 100 is prepared separately from the inner tube 200 and is prepared in a size such that the inner tube 200 can be inserted inside. As shown in FIG. 1 , the outer tube 100 includes a plurality of protruding portions 110 protruding from the inner peripheral surface at a constant height in the center direction. The protruding portion 110 of the outer pipe 100 is also formed in a linear configuration along the length direction of the outer pipe 100, and the height of the protrusion is not particularly limited. However, due to the need to insert the inner tube 200, the diameter of the imaginary cylinder formed by connecting the ends of the protrusions 110 needs to be equal to or greater than the outer diameter of the inner tube 200

After preparing the outer tube 100 and the inner tube 200 separately, since the inner tube 200 is inserted into the outer tube 100, in order to keep the inner tube 200 in a stable position in the inserted state, it is necessary to hold the protruding part of the outer tube 100 The end portion of 110 is formed at a height that can contact the outer peripheral surface of the inner pipe 200 , or at a height close to the outer peripheral surface of the inner pipe 200 at a minimum distance from the outer peripheral surface of the inner pipe 200 . the

When the inner pipe 200 is inserted into the inner pipe 100, a plurality of flow paths divided by the plurality of protrusions 110 of the outer pipe 100 are formed between the inner pipe 200 and the outer pipe 100, and these flow paths become the first fluid and the first fluid. Other flow path of the second fluid. The second fluid has properties different from those of the first fluid. In the vehicle air conditioner, the second fluid may be a low-temperature refrigerant sucked into the compressor or a high-temperature refrigerant supplied to the inlet side of the expansion valve. When the first fluid supplied to the inner pipe 200 is a low-temperature refrigerant, the second fluid is a high-temperature refrigerant, and when the first fluid is a high-temperature refrigerant, the second fluid is a low-temperature refrigerant. The first and second fluids need not be refrigerants under specific temperature and pressure conditions as long as they are fluids with different physical properties capable of heat transfer. the

2a and 2b are perspective views of a connector 300 constituting a double-pipe heat exchanger according to an embodiment of the present invention. the

The connector 300 is generally formed with a structure including a first module 310 and a second module 320 . The first block 310 has a cylindrical shape in which a through hole is formed in the center, and the second block 320 has a cylindrical shape in which an opening is formed on one side. The first module 310 has a larger diameter than the second module 320 which is formed at an upper portion of the first module 310 and has a relatively smaller diameter. The specific structures of the first module 310 and the second module 320 are not limited to the structures shown in Fig. 2a and Fig. 2b, and can also be manufactured into structures different from those shown in these drawings. The second module 320 is preferably formed in a polyhedral shape having at least 3 sides. Three or more side surfaces of the second polyhedral block 320 are formed facing different directions. For example, the second module 320 of the connector 300 of an embodiment of the present invention shown in FIGS. 2a and 2b has two opposite sides formed in pairs, and its structure has four sides in total. the

The first module 310 has the inner tube 200 as shown in Figure 1 inserted into the double casing inside the outer tube 100 and the space for inserting and fixing the first fluid supply tube 400 joined with the inner tube 200, and the second module has a space for inserting and fixing it. The space of the second fluid supply tube 500 is shown. In one aspect, the first module 310 and the second module 320 are integrally formed. the

As shown in Figure 1, in the first module 310 of the connector 300, a second opening 312 and a first opening 311 are formed, the second opening 312 is inserted into a double sleeve, and the double sleeve is inside In a state where the tube 200 is inserted into the outer tube 100 , the first opening 311 is inserted into the first fluid supply tube 400 that is engaged with the inner tube 200 and supplies the first fluid. The first opening 311 and the second opening 312 are connected by a first connection passage 313 connecting the two, thereby forming a through passage from the first opening 311 to the second opening 312 . the

A connection port 321 into which the second fluid supply pipe 500 can be inserted is formed on one side surface 323 of the second block 320 of the connector 300 . FIG. 2 a is a perspective view showing the connector 300 as viewed from the side of the second module 320 in which such a connection port 321 is formed. In the connector 300 shown in FIG. 2a, the first opening 311 into which the first fluid supply tube 400 is inserted and fixed and the connection port 321 into which the second fluid supply tube 500 is inserted are respectively formed in the first module 310 facing the same direction. and the side of the second module 320, but the connector 300 according to the present invention is not limited thereto. The connection port 321 into which the second fluid supply pipe 500 is inserted and fixed may also be formed on the side opposite to the side 323 shown in FIG. 2a (the side of the second module 320 shown in FIG. 2b ). the

FIG. 2 b is a perspective view showing the connector 300 as viewed from the direction of the second opening 312 into which the inner tube 200 and the outer tube 100 are inserted. As shown in FIG. 2b, a second connection path 322 is formed at the junction of the second module 320 and the first module 310, which connects the connection port 321 of the second module 320 and the first connection path 313 of the first module 310. the

3a and 3b are views showing the side and cross-section of the connector 300 shown in FIGS. 2a and 2b, wherein, FIG. 3a is a view from the front of the first opening 311 of the first module 310 and the connection where the second module 320 is formed. A side view of port 321. the

According to the connector 300 shown in FIG. 3 a , the first module 310 has a cylindrical shape with a circular cross section, and the second module 320 is formed at a certain height above the first module 310 and has a semicircular cross section. As shown in FIG. 3 a , the first module 310 has a structure in which the first opening 311 directly passes through the first connecting passage 313 to the second opening 312 . the

As shown in FIG. 3 b , the first connection path 313 of the first module 310 is connected to the connection port 321 of the second module 320 through the second connection path 322 of the second module 320 . Thus, the second fluid supplied by the second fluid supply tube 500 inserted and fixed in the connection port 321 flows into the upper part of the first connection passage 313 through the second connection passage 322 , and then is inserted into the inside of the first connection passage 313 . The space between the tube 200 and the outer tube 100 flows in. the

On the one hand, the diameter D1 of the first opening of the first module 310 is smaller than the diameter D3 of the first connecting passage 313 , and the diameter D2 of the second opening is larger than the diameter D3 of the first connecting passage 313 . The diameter of the first connection passage 313 is smaller than the diameter of the second opening 312, so that in the pipe inserted into the second opening 312, the end of the outer pipe 100 borders the second opening 312 and the first connection passage 313. contact with the stepped portion formed at the , so that its position is fixed. The inner tube 200 is inserted into the first connection passage 313 through the second opening portion 312 , and is engaged with the first fluid supply pipe 400 inserted into the first connection passage 313 through the first opening portion 311 . In other words, in the first connection passage 313 , the first fluid supply tube 400 and the inner tube 200 are combined, and the above-mentioned second fluid flows into the space outside the first fluid supply tube 400 and the inner tube 200 . the

Figures 4 and 5 show the state of combining the inner tube 200 and the outer tube 100, the first and the second fluid supply tubes 400, 500 on the connector 300 respectively in a double-tube heat exchanger according to an embodiment of the present invention stereogram. the

As shown in Figures 4 and 5, the first fluid supply tube 400 inserted through the first opening 311 and the inner and outer tubes inserted through the second opening 312 are respectively combined on the opposite sides of the first module 310 of the connector 300. Tube 200, 100. In the second block 320, the second fluid supply pipe 500 is inserted and fixed on one side surface 323 on which the connection port 321 is formed. the

For the first fluid supply tube 400 inserted into the first opening portion 311, a tube having the same diameter as the inner tube 200 may be used. In the case of the first fluid supply pipe 400 shown in FIGS. 4 and 5 , although the protrusion 410 is formed on the inner peripheral surface similarly to the inner pipe 200 , it is not limited thereto, and one without the protrusion may also be used. Tube. the

The first and second fluid supply tubes 400, 500 can be combined with the connector 300 in various ways, and the way of combining these tubes with the connector 300 is not limited to a particular way. For example, welding may be used to join, or other mechanical means may be used. The external tube 100 inserted and fixed in the second opening 312 can also be joined to the connector 300 by welding or other mechanical means. The combination of the outer tube 100 and the connector 300 is also not limited to a specific method. the

As shown in FIG. 5 , the first fluid supply tube 400 is inserted into the first connection passage 313 , and one end thereof is joined to one end of the inner tube 200 . As shown in FIG. 5 , the protruding portion 410 of the first fluid supply pipe 400 and the protruding portion 210 of the inner pipe 200 may be formed at corresponding positions so as to have a linear structure as a whole, but the present invention is not limited thereto. the

Fig. 6 shows a cross-section of a connector 300 of a double-tube heat exchanger according to a modified example of the present invention. Except for the structure of the connection port 321 of the second module 320, it is different from the connector 300 shown in Fig. 3b described above. The cross section has the same structure. the

The connecting port 321 of the connector 300 shown in FIGS. 3a and 3b is formed in a direction perpendicular to the side 323 of the second module 320. On the contrary, the connector 300 shown in FIG. 6 is formed on the second module 320. The connection port 321 has a difference in that it is formed to be inclined at an angle to the side surface 323 of the second module 320 . That is, if the first fluid supply pipe 400 and the second fluid supply pipe 500 are inserted and fixed in the connector 300 shown in Figures 3a and 3b, these first and second fluid supply pipes 400, 500 will have a structure parallel to each other , On the contrary, when the first and second fluid supply tubes 400, 500 are inserted and fixed in the connector shown in FIG. the

In this way, as the connection port 321 of the second fluid supply tube 500 is inserted, it has a certain inclination angle based on the direction in which the first opening 311 is formed. When in the module 320, the second fluid supply pipe 500 is obliquely fixed with a certain inclination angle with respect to the first fluid supply pipe 400. As shown in FIG. There is a certain value in a small small range, and the inclination angle of this connection port 321 can be selected according to the characteristics of the place where the double-pipe heat exchanger is arranged or the position of other components of the air-conditioning device including the double-pipe heat exchanger. the right angle. Thus, in the case of the double-tube heat exchanger according to the invention, a wide degree of freedom in design can be ensured. the

The connector 300 shown in FIG. 7 according to a modified example of the present invention is different from that shown in FIG. The cross-section of the illustrated connector 300 has the same structure. the

Form the side 323 of the connection port 321 in the side of the second module 320 shown in FIG. 3b or FIG. The side surface 323 forming the connection port 321 is inclined at a certain inclination angle with respect to a plane parallel to the first fluid supply tube 400 when the first fluid supply tube 400 is inserted into the first opening 311 . the

The same as the inclination angle of the connection port 321 shown in FIG. 6, the inclination angle of the side surface 323 of the second module 320 in FIG. The inclination angle of the side 323 can also be selected according to the characteristics of the place where the double-pipe heat exchanger is installed or the location of other components of the air-conditioning device including the double-pipe heat exchanger. the

8a and 8b are perspective views showing a connector 300 included in a double-pipe heat exchanger according to yet another modified example of the present invention. the

8a and 8b have the same structure as the connector 300 shown in FIGS. 2a and 2b except for the position where the connection port 321 of the second fluid supply pipe 500 is inserted and fixed. the

In the connector 300 shown in FIGS. 8a and 8b, the connection port 321 is formed on the other side 324 of the connector 300 shown in FIGS. 2a and 2b which is adjacent to the side 323 of the second module. In FIGS. 8a and 8b, the side surface 324 of the second module is not a flat plane, but has a curved portion on the upper end portion, but the connector structure according to a modification of the present invention is not necessarily limited thereto. the

Figures 9a and 9b are side and cross-sectional views of the connector shown in Figures 8a and 8b. the

In the case of the connector 300 shown in FIGS. 9a and 9b , unlike the connector 300 shown in FIG. 3a , among the side faces of the second module 320 , the side faces in the same direction as the side where the first opening 311 is formed. No opening is formed on the side 323 , and the second opening 321 is formed on the other side 324 adjacent to the side 323 . Although the two adjacent sides 323, 324 of the second module 320 of the connector 300 shown in Figures 9a and 9b have mutually perpendicular structures, the present invention is not limited thereto, and the two adjacent sides of the second module 320 The angle formed by the side surfaces 323, 324 may be less than 90 degrees or greater than 90 degrees. the

10 and 11 are perspective views showing a state in which the first and second fluid supply tubes 400, 500 and the inner and outer tubes 200, 100 are inserted and fixed in the connector 300 shown in FIGS. 8a and 8b. 10 and 11, the connection port 321 formed on the second module 320 is formed on the other side 324 adjacent to the side formed by the first opening 311, so that the first fluid supply pipe 400 and the second fluid supply pipe 400 The pipe 500 is fixed in a state of forming a right angle. Of course, the angle formed by the first fluid supply pipe 400 and the second fluid supply pipe 500 is not necessarily limited to 90 degrees, according to the angle formed by the side 324 formed by the connecting port 321 and the side formed by the first opening, it can be greater than 90 degrees. degrees, or less than 90 degrees. the

As shown in FIGS. 6 to 11, in the case of a connector 300 constituting a double-pipe heat exchanger according to the present invention, it functions as a multi-directional connector because, as the second fluid supply can be inserted and fixed The position of the connection port 321 of the pipe 500 is changed variously, regardless of the characteristics of the place where the double-pipe heat exchanger is installed or the positional relationship of other components of the air-conditioning apparatus including the double-pipe heat exchanger, in each case , a double-tube heat exchanger can be set in a suitable structure. For example, on the basis of Fig. 4, assuming that the components supplying the first fluid are located on the left side of the double-tube heat exchanger, and the components supplying the second fluid are also located on the left side of the double-tube heat exchanger, as As shown in FIG. 4 , it is enough to use a connector having a connection port 321 formed on the same side surface 323 as the side surface forming the first opening 311, and the component part for supplying the second fluid is located in the longitudinal direction of the double-tube heat exchanger. In the former case, as shown in FIG. 10 , a connector having a connection port 321 formed on a side surface 324 adjacent to the side surface on which the first opening 311 is formed may be used. the

In this way, the presence of a double-pipe heat exchanger connector according to the invention has the effect that, upon insertion into the upper part of the first module 310 combining the first fluid supply pipe 400 and the inner and outer pipes 200, 100, Another second module 320 is formed, and the second fluid supply pipe 500 is combined on the second module 320. By adopting this structure, the function of a multi-directional connector can be played, and it is aimed at an air conditioner that is to be provided with a double-pipe heat exchanger. The connection port 321 can be formed at a suitable position. the

On the one hand, the aforementioned double-pipe heat exchanger according to an embodiment of the present invention can be used as a structure of a vehicle air-conditioning device, and can also be used in other air-conditioning devices other than vehicles. the

The specific content of the above description is a description of an embodiment of the structure of the double-tube heat exchanger according to the present invention, which is only a specific one proposed to help the understanding of the technical idea and main structure of the present invention. Examples are not intended to limit the scope of the present invention. It is obvious to those skilled in the art to which the present invention pertains that other various modified examples can be implemented based on the technical idea of the present invention in addition to the embodiments disclosed herein. the

reference sign

100: external tube 200: internal tube

300: Connector 400: First fluid supply tube

310: The first module 311: The first opening

312: Second opening 313: First connection path

320: Second module 321: Connecting port

322: the second connection path 323~325: the side

500: Second fluid supply pipe

Claims (8)

1. a double-jacket tube heat exchanger, is characterized in that, it comprises:

Exterior tube, it is formed multiple from inner peripheral surface to the outstanding formation of center position and along its length with the protuberance that rectilinear form prolongation is formed;

Inner tube, it inserts to described exterior tube inside;

First fluid supply pipe, it is bonded on an end of described inner tube; And

Connector, it possesses the space can inserting collecting described exterior tube, inner tube and described first fluid supply pipe;

Described connector comprises:

First module, it possesses the first opening portion, and it inserts described first fluid supply pipe; Second opening portion, it inserts described exterior tube and inner tube; First connecting path, it connects described first opening portion and the second opening portion, and forms the space of described inner tube and described first fluid supply pipe joint;

Second module, it is formed in described first module top, has respectively towards at least 3 sides of different directions;

Described at least 3 sides are formed with the size that can form the connector inserting fixing second fluid supply pipe, a side in described at least 3 sides, and its side being formed as being formed with described first opening portion is in same plane,

Be positioned at the another side of the opposition side of a described side, its side being formed as being formed with described second opening portion is in same plane,

Described connector is formed on any one side at least 3 sides of described second module,

Be formed with the second connecting path in the inside of described second module, it connects the first connecting path of described connector and described first module.

2. double-jacket tube heat exchanger according to claim 1, is characterized in that, described inner tube comprises multiple from inner peripheral surface to the outstanding formation of center position and along its length with the protuberance that rectilinear form prolongation is formed.

3. double-jacket tube heat exchanger according to claim 1, is characterized in that, described connector with insert at described second fluid supply pipe be fixed to described connector state under, to described first fluid supply pipe have certain inclination angle shape formed.

4. double-jacket tube heat exchanger according to claim 1, is characterized in that, the side of described second module that described connector is formed, it has certain inclination angle with the plane being parallel to described first fluid supply pipe.

5. double-jacket tube heat exchanger according to claim 1, it is characterized in that, described connector with insert at described second fluid supply pipe be fixed to described connector state under the described second fluid supply pipe shape parallel with described first fluid supply pipe is formed.

6. double-jacket tube heat exchanger according to claim 1, is characterized in that, described connector be formed in the side of described second module be different from first and second opening portion described towards direction side in any surface on.

7. double-jacket tube heat exchanger according to claim 1, is characterized in that, the diameter of described first connecting path is larger than the diameter of the first opening portion, less than the diameter of the second opening portion.

8. one kind comprises the air conditioner for vehicles of the double-jacket tube heat exchanger according to any one in claim 1-7.