KR20200108241A - Distributor, heat exchanger unit and air conditioner - Google Patents

Abstract

The present invention relates to an air conditioner which comprises: a distributor for distributing a fluid passing through the inside thereof; and a heat exchanger having a plurality of refrigerant pipes through which the fluid distributed by the distributor flows, and provided to exchange heat with air. The distributor includes: a main pipe; a partition part for forming a plurality of distribution passages inside the main pipe; branch pipe 1a inserted into the main pipe by a first length to communicate with a first distribution passage of the distribution passage, and connected to a part of the heat exchanger; and branch pipe 1b inserted into the main pipe by a second length different from the first length to communicate with the first distribution passage, and connected to another part of the heat exchanger. A flow rate of air heat-exchanged in one part of the heat exchanger is faster than that of air heat-exchanged in the other part of the heat exchanger, and the first length is shorter than the second length. According to the present invention, the distributor can be maintained to be compact even when the number of branch pipes increases.

Description

Distributor, heat exchanger unit and air conditioner {DISTRIBUTOR, HEAT EXCHANGER UNIT AND AIR CONDITIONER}

The present invention relates to a distributor, a heat exchanger unit and an air conditioner.

In a distributor in which a main pipe is installed on the upstream side of the distributor body through which fluid passes through, and a plurality of outlet pipes are installed on the downstream side, the main pipe is a distributor installed at the inlet where the fluid flows. , An inner tube communicating with the distributor, a partition member for forming the same number of distribution passages in the inner tube as the outlet pipe, and an exterior forming a reservoir surrounding the inner tube and communicating with each distribution passage in the inner tube, Each outlet pipe is known as a distributor in communication with the corresponding storage of the main pipe (see, for example, Patent Document 1).

A refrigerant splitter for distributing a refrigerant to a plurality of refrigerant paths of a heat exchanger, and a separator by a longitudinally elongated cylindrical member having a refrigerant inlet portion to which a refrigerant pipe is connected, and having a refrigerant outlet portion facing each inlet portion of the refrigerant path. A refrigerant splitter is known which constitutes a main body and defines a plurality of split passages extending from the coolant inlet to the coolant outlet in the splitter main body (see, for example, Patent Document 2).

JP 2730299 B2 JP 1992-302964 A

In the case of configuring a distributor by connecting a plurality of branch pipes in which each branch pipe communicates with any one of the plurality of distribution passages to a portion fitted to an adjacent partition of the main pipe, increasing the number of branch pipes makes the distributor compact. There is a fear that it will not be done.

When a distributor is configured by connecting only one branch pipe to each distribution passage of a plurality of distribution passages formed in the main pipe, if the number of branch pipes is to be increased, it is necessary to increase the number of distribution passages, and the distributor is compact. There is a fear that it will not be done.

In a distributor in which a plurality of reservoirs surrounding the plurality of distribution passages and each communicating with the plurality of distribution passages are formed, when a configuration in which each branch pipe of the plurality of branch pipes is connected to any one reservoir is adopted, a plurality of If a bias occurs in the amount of fluid flowing into the distribution passage, there is a possibility that the flowability may deteriorate.

In a distributor manufactured by inserting a plurality of partitions into the distributor body, when a configuration in which the distributor body and the plurality of partitions are joined as it is, leakage of fluid between the exterior and the plurality of partitions or between the inner shaft and the plurality of partitions There is a possibility that this occurs and the classification property deteriorates.

An object of the present invention is to make it possible to keep the distributor compact even if the number of branch pipes connected to the main pipe is increased.

Another object of the present invention is to reduce the likelihood of deterioration of the flowability when a bias occurs in the amount of fluid flowing into the plurality of distribution passages.

Still another object of the present invention is to reduce the possibility that fluid leakage occurs between the exterior and the plurality of partitions or between the inner shaft and the plurality of partitions, resulting in deterioration of the flowability.

For this purpose, the present invention provides a cylindrical main tube; A plurality of partitions installed along the axis of the main pipe and forming a plurality of distribution passages in the main pipe; And a plurality of branch pipes in which each branch pipe is connected to any one of the plurality of distribution passages, wherein the first branch pipe and the second branch pipe of the plurality of branch pipes are each of a plurality of partition passages. A distributor connected to the first distribution passage and the second distribution passage for fitting at least one of the negatives is provided.

The first branch pipe and the second branch pipe are branch pipes adjacent to each other, and the first distribution passage and the second distribution passage may have only one of the plurality of partitions inserted therein.

The plurality of branch pipes may include at least two branch pipes connected to one of the plurality of distribution passages. In this case, the at least two branch pipes may be configured so that at least one of the inner diameter of the axial flow portion and the length of insertion into one distribution passage are different. Further, the plurality of partitions may be provided so as to achieve a constant twisting angle with respect to the axis of the main pipe.

The distributor may further include an orifice plate having a plurality of orifice holes respectively corresponding to the plurality of distribution passages, and the plurality of orifice holes may be configured to have different inner diameters. In this case, the distributor may further include a positioning mechanism for aligning the plurality of distribution passages and the plurality of orifice holes.

The plurality of partition portions may be formed to form a plurality of distribution passages so that the cross-sectional area of the plurality of distribution passages when cut at a specific cut surface is different.

The distributor includes two distributor elements, each of the two distributor elements being a main tube; A plurality of partitions; And a plurality of branch pipes, wherein the first branch pipe and the second branch pipe of the plurality of branch pipes each have a first distribution passage and a second distribution through which at least one of the plurality of partitions is inserted among the plurality of distribution passages. It may be connected to the passage.

In addition, the present invention is a cylindrical main tube (主管); A plurality of partitions installed integrally with the main pipe along the axis of the main pipe, and forming a plurality of distribution passages in the main pipe; And a plurality of branch pipes in which each branch pipe is connected to any one of the plurality of distribution passages, wherein the plurality of branch pipes includes at least two branch pipes connected to one distribution passage of the plurality of distribution passages. Also provides.

The first branch pipe and the second branch pipe of the plurality of branch pipes may each be connected to a first distribution passage and a second distribution passage through which at least one of the plurality of partition portions is sandwiched among the plurality of distribution passages. In this case, the first branch pipe and the second branch pipe are branch pipes adjacent to each other, and the first distribution passage and the second distribution passage may fit only one of the plurality of partitions.

The at least two branch pipes may be configured such that at least one of the inner diameter of the axial flow portion and the length of insertion into one distribution passage are different.

A plurality of partitions may be provided so as to achieve a constant twist angle with respect to the axis of the main pipe.

The distributor is provided with an orifice plate having a plurality of orifice holes respectively corresponding to the plurality of distribution passages at the end of the main pipe, and the orifice plate may have a plurality of protrusions that are respectively inserted into the plurality of distribution passages. Do. In this case, a beeswax sheet may be provided between the main pipe and the orifice plate.

The distributor may have a cap portion for blocking the entire plurality of distribution passages at an end of the main pipe, and the cap portion may have a plurality of protrusions respectively fitted into the plurality of distribution passages. In this case, a beeswax sheet may be provided between the main pipe and the cap portion.

The distributor may have at least one cover on the outer periphery of the main pipe, and the at least one cover may have a plurality of burring holes into which a plurality of branch pipes are respectively fitted.

The main pipe may have a plurality of burring holes into which a plurality of branch pipes are respectively inserted.

In addition, the present invention is a cylindrical main tube (主管); A plurality of partitions installed along the axis of the main pipe and forming a plurality of distribution passages in the main pipe; And a plurality of branch pipes in which each branch pipe is connected to any one of the plurality of distribution passages, wherein the plurality of partitions are two partitions adjacent to each other, and each partition is two partitions among the plurality of branch pipes. There is also provided a distributor comprising two partition portions having at least one step for supporting a branch pipe connected to one distribution passage formed by the portion.

The first branch pipe and the second branch pipe of the plurality of branch pipes may each be connected to a first distribution passage and a second distribution passage through which at least one of the plurality of partition portions is sandwiched among the plurality of distribution passages. In this case, the first branch pipe and the second branch pipe are branch pipes adjacent to each other, and the first distribution passage and the second distribution passage may fit only one of the plurality of partitions.

The plurality of branch pipes may include at least two branch pipes connected to one distribution passage. In this case, each partition portion of the two partition portions is at least one step, and has a plurality of steps, and at least two branch pipes are supported by a different step among the plurality of steps, so that the inner diameter of the axial flow portion and one At least one of the lengths inserted into the distribution passage may be configured to be different. Further, the plurality of partitions may be provided so as to achieve a constant twisting angle with respect to the axis of the main pipe.

Each partition of the two partitions is at least one step, and has a specific step at a position shallower than half of the depth of one distribution passage, and the branch pipe connected to one distribution passage is supported by a specific step, so that one distribution passage It may be configured such that the length of insertion into the hole is smaller than the length of the depth.

Subjectivity; And a member including a plurality of partition portions; may be joined by a shaft pipe of the main pipe or an expansion pipe of the member.

Each partition portion of the plurality of partition portions may be provided with a crushed rib that is crushed and deformed by contact with the main pipe at the tip end portion.

Furthermore, the present invention provides a cylindrical appearance; An inner shaft installed in the exterior; A plurality of partitions forming a plurality of distribution passages between the exterior and the inner shaft; And a plurality of branch pipes in which each branch pipe is connected to any one of a plurality of distribution passages, wherein the plurality of partitions are installed integrally with the inner shaft, and are joined to the exterior through heterogeneous materials, or the exterior A distributor is also provided as a member integrated with and bonded to the inner shaft through a heterogeneous material.

The distributor may have a concave portion formed on the outer surface so that the convex portion is formed in the plurality of distribution passages at the first position of the open end of the outer surface. In this case, the orifice plate may be provided at the second position of the portion other than the end of the outer surface.

The distributor is provided with an orifice plate at a first position of the open end of the exterior, and in a second position other than the end of the exterior, a concave portion is formed on the outer surface such that convex portions are formed in the plurality of distribution passages. It's okay.

The plurality of partitions may be provided so as to form an angle by twisting with respect to the axis of the exterior. In this case, the plurality of partitions are provided so as to achieve a first twist angle with respect to the external axis in the first range in the axial direction of the external appearance, and in the second range in the axial direction of the external appearance, the second with respect to the external axis. It may be installed to achieve a twist angle.

The plurality of partition portions may be rib-processed on the surface in the first range in the axial direction of the exterior without rib processing on the surface, and in the second range in the axial direction of the exterior.

The plurality of partition portions may have a first thickness at a first position in the axial direction of the exterior, and may have a second thickness at a second position in the axial direction of the exterior.

The plurality of branch pipes may include at least two branch pipes connected to one of the plurality of distribution passages. In this case, the at least two branch pipes may be configured so that the diameters of the holes provided on either side of the portion inserted into one distribution passage are different.

On the other hand, the present invention is a distributor for distributing the fluid passing through the interior; And a heat exchanger that performs heat exchange between the fluid distributed by the distributor and air, wherein the distributor includes a cylindrical main tube; A plurality of partitions installed along the axis of the main pipe and forming a plurality of distribution passages in the main pipe; And a plurality of branch pipes in which each branch pipe is connected to any one of the plurality of distribution passages, wherein the first branch pipe and the second branch pipe of the plurality of branch pipes are each of a plurality of partition passages. A heat exchanger unit connected to the first distribution passage and the second distribution passage in which at least one of the negative portions is fitted is also provided.

The length of the distributor may be shorter than the length in the direction in which the plurality of fluid pipes through which the fluid distributed by the distributor of the heat exchanger flows are arranged side by side.

The plurality of branch pipes may include at least two branch pipes connected to one of the plurality of distribution passages. In this case, the at least two branch pipes may be configured such that at least one of the inner diameter of the axial flow portion and the length of insertion into one distribution passage are different. In addition, in the at least two branch pipes, the inner diameter of the axial flow portion of the branch pipe through which the fluid distributed to the portion where the air flow of the heat exchanger passes fast is distributed to the portion where the air flow of the heat exchanger is slow. It may be configured to be larger than the inner diameter of the axial flow portion of the branch pipe through which the fluid passes, and one distribution passage in the branch pipe through which the fluid distributed to the portion where the air flows through the heat exchanger is fast. The insertion length into the heat exchanger may be configured to be shorter than the insertion length into one distribution passage of the branch pipe through which the fluid distributed to the portion of the heat exchanger where the air flow is slow passes.

In addition, the present invention is a distributor for distributing the fluid passing through the interior; And a heat exchanger that has a plurality of fluid pipes through which the fluid distributed by the distributor flows, and performs heat exchange between the fluid flowing through the plurality of fluid pipes and air, wherein the distributor is a cylindrical main pipe. ; A plurality of partitions installed integrally with the main pipe along the axis of the main pipe, and forming a plurality of distribution passages in the main pipe; And a plurality of branch pipes in which each branch pipe is connected to any one of the plurality of distribution passages, wherein the plurality of branch pipes includes at least two branch pipes connected to one distribution passage of the plurality of distribution passages. It also provides the base unit.

In addition, the present invention is a distributor for distributing the fluid passing through the interior; And a heat exchanger that has a plurality of fluid pipes through which the fluid distributed by the distributor flows, and performs heat exchange between the fluid flowing through the plurality of fluid pipes and air, wherein the distributor is a cylindrical main pipe. ; A plurality of partitions provided along the axis of the main pipe and forming a plurality of distribution passages in the main pipe; And a plurality of branch pipes in which each branch pipe is connected to any one of a plurality of distribution passages and one of a plurality of fluid pipes, wherein the plurality of partitions are two partitions adjacent to each other, and each partition portion includes a plurality of Of the branch pipes of, there is also provided a heat exchanger unit including two partitions having at least one step for supporting the branch pipe connected to one distribution passage formed by the two partitions.

The plurality of branch pipes may include at least two branch pipes connected to one distribution passage. In this case, each partition portion of the two partition portions is at least one step, and has a plurality of steps, and at least two branch pipes are supported by a different step among the plurality of steps, so that the inner diameter of the axial flow portion and one At least one of the lengths inserted into the distribution passage may be configured to be different.

Each partition of the two partitions is at least one step, and has a specific step at a position shallower than half of the depth of one distribution passage, and the branch pipe connected to one distribution passage is supported by a specific step, so that one distribution passage It may be configured such that the length of insertion into the hole is smaller than half the depth.

Of the plurality of branch pipes, at least one branch pipe may branch into a plurality of branch pipes, and each branch pipe of the plurality of branch pipes may be connected to any one of the plurality of fluid pipes.

In addition, the present invention is a distributor for distributing the fluid passing through the interior; And a heat exchanger having a plurality of fluid pipes through which the fluid distributed by the distributor flows, and performing heat exchange between the fluid flowing through the plurality of fluid pipes and air, wherein the distributor has a cylindrical appearance; An inner shaft installed in the exterior; A plurality of partitions forming a plurality of distribution passages between the exterior and the inner shaft; And a plurality of branch pipes in which each branch pipe is connected to any one of a plurality of distribution passages, wherein the plurality of partitions are installed integrally with the inner shaft, and are joined to the exterior through different materials or integrated with the exterior. A heat exchanger unit, which is a member installed and bonded to the inner shaft through a different material, is also provided.

According to the present invention, even if the number of branch pipes connected to the main pipe is increased, the distributor can be kept compact.

In addition, according to the present invention, it is possible to reduce the possibility of deterioration of the separation property when a bias occurs in the amount of fluid flowing into the plurality of distribution passages.

In addition, according to the present invention, it is possible to reduce the possibility that fluid leakage occurs between the exterior and the plurality of partitions or between the inner shaft and the plurality of partitions, resulting in deterioration of the separation properties.

1 is a view showing an air conditioner according to an embodiment of the present invention.
2 is a diagram showing the overall configuration of a distributor in the first embodiment of the present invention.
3 is an AA cross-sectional view of the distributor in FIG. 2.
4 is a view showing a first modified example of the AA cross-sectional view of the distributor in FIG. 2.
5A to 5C are diagrams showing a third modified example of the cross-sectional view taken along AA of the distributor in FIG. 2.
6 is a diagram showing a relationship between a wind speed at a height of a refrigerant pipe to which the branch pipe is connected in a heat exchanger for each branch pipe and a refrigerant flow rate suitable to flow through the branch pipe.
7 is a diagram showing an overall configuration of a distributor in a second embodiment of the present invention.
Fig. 8 is a partially enlarged view of a dispenser in a second embodiment of the present invention.
9 is a partially enlarged view of a dispenser in a third embodiment of the present invention.
10 is a cross-sectional view taken along AA of a dispenser according to a fourth embodiment of the present invention.
11 is a perspective view of a dispenser in a fifth embodiment of the present invention.
12 is a diagram showing the overall configuration of a heat exchanger unit including a distributor and a heat exchanger in a sixth embodiment of the present invention.
13 is a partially enlarged view of a distributor according to a seventh embodiment of the present invention.
Fig. 14 is a diagram showing an overall configuration of a distributor according to an eighth embodiment of the present invention.
Fig. 15 is a cross-sectional view taken along AA of the distributor in Fig. 14;
16 is a diagram showing the overall configuration of a distributor according to the ninth embodiment of the present invention.
17 is a partially enlarged view of a distributor in a tenth embodiment of the present invention.
18 is a partially enlarged view of a distributor in the eleventh embodiment of the present invention.
19 is a perspective view of an exterior cover used in the twelfth embodiment of the present invention.
Fig. 20 is a partially enlarged view of a distributor in a twelfth embodiment of the present invention.
Fig. 21 is a diagram showing an overall configuration of a heat exchanger unit including a distributor and a heat exchanger in a thirteenth embodiment of the present invention.
Fig. 22 is a diagram showing the overall configuration of a distributor according to the fourteenth embodiment of the present invention.
Fig. 23 is an AA cross-sectional view of the distributor in Fig. 22;
Fig. 24 is an AA cross-sectional view of the distributor in Fig. 22;
Fig. 25 is a cross-sectional view taken along AA of the dispenser in Fig. 22;
Fig. 26 is a graph showing the reason why it is desirable to make the insertion length of the branch tube smaller than 1/2 the depth of the distribution passage.
Fig. 27 is a cross-sectional view taken along AA of the distributor in Fig. 22;
Fig. 28 is a diagram showing the overall configuration of a distributor according to the fifteenth embodiment of the present invention.
Fig. 29 is a partially enlarged view of a distributor in the sixteenth embodiment of the present invention.
Fig. 30 is a partially enlarged view of a distributor in a seventeenth embodiment of the present invention.
Fig. 31 is a diagram showing the overall configuration of a heat exchanger unit including a distributor and a heat exchanger in the eighteenth embodiment of the present invention.
Fig. 32 is a diagram showing the overall configuration of a distributor in the nineteenth embodiment of the present invention.
33A and 33B are diagrams illustrating a first example of the distributor in FIG. 32.
34A and 34B are diagrams showing a second example of the distributor in FIG. 32.
Fig. 35 is a diagram showing the overall configuration of a distributor according to the twentieth embodiment of the present invention.
36A and 36B are cross-sectional views of a distributor in the twenty-first embodiment of the present invention.
Fig. 37 is a diagram showing the overall configuration of a distributor according to the 22nd embodiment of the present invention.
38A and 38B are diagrams showing a partially enlarged view of a distributor in the 22nd embodiment of the present invention.
39A and 39B are cross-sectional views of a dispenser in a twenty-third embodiment of the present invention.
40A and 40B are cross-sectional views of a distributor according to the twenty-fourth embodiment of the present invention.
Fig. 41 is an AA cross-sectional view of a dispenser according to a 25th embodiment of the present invention.
Fig. 42 is a diagram showing an overall configuration of a heat exchanger unit including a distributor and a heat exchanger in the twenty-sixth embodiment of the present invention.

Referring to FIG. 1, an air conditioner 90 according to an embodiment of the present invention may include an outdoor unit 91 and an indoor unit 92. The outdoor unit 91 and the indoor unit 92 of the air conditioner 90 may be connected through a tube provided to allow the refrigerant to move.

1 shows that one outdoor unit 91 is provided, the outdoor unit 91 may be provided in plural. The outdoor unit 91 may perform both a heat pump cycle and a heat recovery cycle.

1 shows that one indoor unit 92 is provided, the indoor unit 92 may be provided in plural. The indoor unit 92 may be driven in a cooling mode or a heating mode.

The heat exchanger unit described below may be provided in the outdoor unit 91 and/or the indoor unit 92.

[First embodiment]

Fig. 2 is a diagram showing the overall configuration of the distributor 1 in the first embodiment. The distributor 1 distributes a refrigerant as an example of a fluid passing through the inside. And, as shown, the distributor 1 includes a cylindrical outer 10, an inner tube 20 installed in the outer tube 10, and an orifice plate 40 installed at an end of the inner tube 20 on the upstream side of the refrigerant. Equipped. Here, the outer appearance 10 is made into a cylindrical shape, but it may be a cylindrical shape, and in that sense, the outer appearance 10 is an example of a cylindrical main tube. In addition, the distributor 1 has an inlet portion 30 for guiding, for example, a welding-coupled refrigerant to an end portion of the outer side 10 on the upstream side of the refrigerant, and an end portion opposite to the upstream side of the coolant of the outer side 10. For example, it has a cap portion 50 that is welded together. On the other hand, since the inlet portion 30 is provided outside the orifice plate 40, the orifice plate 40 is not visible from the outside, but the orifice plate 40 is shown here. In addition, the distributor 1 includes a plurality of branch pipes 60 fixed to the downstream side of the refrigerant and connected to a refrigerant pipe of a heat exchanger (not shown).

In addition, FIG. 2 also shows the internal structure of the inner tube 20 by cutting out the front side of the outer tube 10. As shown, a plurality of partition plates 21 are provided in the inner tube 20, and thus, a plurality of distribution passages 22 are formed. In the first embodiment, the plurality of partition plates 21 are provided parallel to the central axis of the inner tube 20. 2 is a state viewed from the front side, as the plurality of partition plates 21, only the partition plates 21a to 21c (in addition, only the end portions on the outer surface 10 side) are shown, and a plurality of distribution passages 22 ), only the distribution passages 22a to 22d are shown. Here, the plurality of partition plates 21 are supposed to be installed parallel to the central axis of the inner pipe 20, but may be installed along the axis of the inner pipe 20, and in that sense, the plurality of partition plates 21 are the main pipe ( It is an example of a plurality of partitions installed along the axis of the main column.

In addition, although not shown in FIG. 2, the orifice plate 40 has a plurality of orifice holes 401 (refer to FIG. 9 and the like) for flowing refrigerant through the plurality of distribution passages 22, respectively.

In addition, the plurality of branch pipes 60 communicate with the plurality of distribution passages 22, respectively. Fig. 2 shows a plurality of branch pipes 60, in addition to the branch pipes 60a to 60d communicating with the distribution passages 22a to 22d, respectively, and because they are located on the opposite side of the inner pipe 20, the distribution passages 22e to not shown in FIG. The branch pipes 60e to 60g each communicating with 22g) are also shown.

Here, in this configuration, the first branch pipe and the second branch pipe adjacent to each other of the plurality of branch pipes are, respectively, a first distribution passage and a second distribution passage in which only one of the plurality of partition portions is inserted among the plurality of distribution passages. It can be seen as an example of a configuration connected to. In this case, if the branch pipes 60a and 60b are examples of the first branch pipe and the second branch pipe, respectively, the distribution passages 22a and 22b become examples of the first distribution passage and the second distribution passage, respectively, and the partition The plate 21a becomes one example of a plurality of partitions.

Further, in the above configuration, the first branch pipe and the second branch pipe do not need to be adjacent branch pipes, and the first distribution passage and the second distribution passage may sandwich at least one of the plurality of partitions. Do. In this case, if the branch pipes 60a and 60c are examples of the first branch pipe and the second branch pipe, respectively, the distribution passages 22a and 22c are examples of the first distribution passage and the second distribution passage, respectively, and the partition The plates 21a and 2lb are at least one example of a plurality of partitions.

In addition, as shown, in the first embodiment, the branch pipe 60a extends directly to the right from the distribution passage 22a. The branch pipes 60b to 60d face one end forward from the distribution passages 22b to 22d, which are bent and extend to the right. The branch pipes 60e to 60g are once directed toward the opposite side from the distribution passages 22e to 22g, and they are bent and extend to the right.

Further, as the branch pipes 60a to 60g, only one set may be provided. In the first embodiment, not only one set but also a plurality of sets are provided in parallel as shown. Here, the latter configuration can be regarded as an example of a configuration in which the plurality of branch pipes includes at least two branch pipes connected to one of the plurality of distribution passages.

3 is an A-A cross-sectional view of the distributor 1 in FIG. 2. As shown, partition plates 21a to 21g are provided in the inner tube 20, thereby forming distribution passages 22a to 22g. Here, since the partition plate 21 couples the outer side of the inner tube 20 and the center of the inner tube 20, the width between the partition plates 21 in the distribution passage 22 is the center from the outside of the inner tube 20 It is getting smaller as we go. In Fig. 3, the branch pipe 60a fixed by communicating with the distribution passage 22a is sandwiched between the partition plates 21a and 21g forming the distribution passage 22a. Further, in the first embodiment, the inner diameter Di of the axial flow (vena contracta) portion 62a is configured differently between the plurality of branch pipes 60a (three branch pipes 60a in Fig. 2). Has been. In addition, in the first embodiment, the insertion length L is configured differently between a plurality of branch pipes 60a (three branch pipes 60a in Fig. 2). On the other hand, Fig. 3 is an AA cross-sectional view of the distributor 1 in Fig. 2, and thus only the branch pipe 60a communicating with the distribution passage 22a is shown, but the branch pipe communicating with the distribution passage 22b to 22g ( The same is true for 60b to 60g). Thereby, since the flow resistance of the refrigerant in one distribution passage 22 can be changed, the refrigerant flow can be adjusted and the heat exchange capability can be increased.

Next, a modified example of the first embodiment will be described.

4 is a view showing a first modification of the A-A cross-sectional view of the distributor 1 in FIG. 2. In Fig. 3, the shape of the axial flow portion 62a of the branch pipe 60a was made to be inclined from the main body 61a of the branch pipe 60a. As shown in Fig. 4, the main body ( 61a), it is possible to adjust the flow of the refrigerant passage accordingly.

In Figs. 3 and 4, although the insertion length L of the branch pipe 60a is adjusted by providing the beading portion 63a, it is not limited thereto. As a second modified example, it may be adjusted by the outer diameter Do of the axial flow portion 62a. That is, the branch pipe 60a is inserted so that the outer diameter Do of the axial flow portion 62a matches the width between the partition plates 21a and 21g, and the insertion length L of the branch pipe 60a is adjusted. You can decide.

5A to 5C are views showing a third modified example of the A-A cross-sectional view of the distributor 1 in FIG. 2. The cross-sectional shape of the distribution passages 22a to 22g may be a trapezoidal shape as shown in Fig. 5A, a triangular shape as shown in Fig. 5B, or a combination of a trapezoid and a square shape as shown in Fig. 5C.

Next, a specific example in which the inner diameter (Di) of the axial flow portion 62 and the insertion length (L) of the branch pipe 60 are different among the plurality of branch pipes 60 will be described. do. 6 is a diagram showing the relationship between the wind speed at the height of the refrigerant pipe to which the branch pipe 60 is connected in the heat exchanger for each branch pipe 60 and the refrigerant flow rate suitable to flow through the branch pipe 60 . From the drawing, it is understood that in this heat exchanger, the higher the height, the larger the wind speed, so it is better to increase the refrigerant flow rate. In order to increase the refrigerant flow rate, the inner diameter Di of the axial flow portion 62 may be increased, and the insertion length L of the branch pipe 60 may be shortened.

Here, it is assumed that FIG. 6 shows a case where, for example, the six branch pipes 60 communicate with the seven distribution passages 22 respectively, so that the refrigerant flows through the 42 branch pipes 60.

In this case, if the amount of refrigerant flowing through the seven distribution passages 22 is equal, the more branch pipes 60 connected to the refrigerant pipes having a high height in the heat exchanger for the 42 branch pipes 60, the axial flow portion It is safe to increase the inner diameter Di of the (縮流部) 62 and shorten the insertion length L of the branch pipe 60.

On the other hand, if the amount of refrigerant flowing through the seven distribution passages 22 is not equal, for each distribution passage 22 of the seven distribution passages 22, the six branch pipes 60 communicating with the distribution passage 22 ), the larger the branch pipe 60 connected to the refrigerant pipe having a higher height in the heat exchanger, the larger the inner diameter Di of the axial flow portion 62, and the insertion length of the branch pipe 60 It is okay to shorten (L).

In this example, since the refrigerant pipes to which the branch pipes 60 are connected are arranged side by side in the height direction of the heat exchanger, the inner diameter Di of the axial flow part 62 is determined according to the position in the height direction of the heat exchanger. And the insertion length (L) of the branch tube 60 is made different, but is not limited thereto.

Paying attention to the inner diameter (Di) of the axial flow part 62, the above configuration is the axial flow of the branch pipe through which the fluid distributed to the portion where the air flow of the heat exchanger is fast passes. It can be understood that the inner diameter of the negative flow portion is configured to be larger than the inner diameter of the axial flow portion of the branch pipe through which the fluid distributed to the portion where the air flow of the heat exchanger is slow passes.

Also, paying attention to the insertion length (L) of the branch pipe 60, the above configuration is one distribution of the branch pipe through which the fluid distributed to the portion where the air flow of the heat exchanger is fast passes at least two branch pipes. It can be understood that the length of insertion into the passage is shorter than the length of insertion into one distribution passage of the branch pipe through which the fluid distributed to the portion of the heat exchanger where the flow of air is slow passes.

On the other hand, in the first embodiment, between the plurality of branch pipes 60, both the inner diameter Di of the axial flow portion 62 and the insertion length L of the branch pipe 60 are configured differently. However, it is not limited to this. At least one of the inner diameter Di of the axial flow part 62 and the insertion length L of the branch pipe 60 may be configured to be different.

[Second Embodiment]

7 is a diagram showing the overall configuration of a distributor 2 in the second embodiment. The distributor 2 also distributes a refrigerant as an example of a fluid passing through the interior. And, as shown, the distributor 2 is provided with a cylindrical outer 10, an inner tube 20 installed in the outer tube 10, and an orifice plate 40 installed at an end of the inner tube 20 on the upstream side of the refrigerant. do. Here, the outer appearance 10 is made into a cylindrical shape, but it may be a cylindrical shape, and in that sense, the outer appearance 10 is an example of a cylindrical main tube. In addition, the distributor 2 has an inlet portion 30 for guiding, for example, a weld-coupled refrigerant to an end portion of the outer side 10 on the upstream side of the refrigerant, and an end portion opposite to the upstream side of the coolant of the outer side 10. For example, it has a cap portion 50 that is welded together. On the other hand, since the inlet portion 30 is provided outside the orifice plate 40, the orifice plate 40 is not visible from the outside, but the orifice plate 30 is shown here. In addition, the distributor 2 includes a plurality of branch pipes 60 fixed to the downstream side of the refrigerant and connected to the refrigerant pipe of a heat exchanger (not shown).

In addition, FIG. 7 also shows the internal structure of the inner tube 20 by cutting out the front side of the outer tube 10. As shown, a plurality of partition plates 21 are provided in the inner tube 20, and thus, a plurality of distribution passages 22 are formed. In the second embodiment, the plurality of partition plates 21 are formed by providing a constant twist angle with respect to the central axis of the inner tube 20. Fig. 7 shows a plurality of partition plates 21, which are partition plates 21a to 21g (only the end portions on the outer surface 10 side), as the plurality of distribution passages 22, the distribution passages 22a to 22g). Here, it is assumed that the plurality of partition plates 21 are formed by providing a constant twist angle with respect to the central axis of the inner tube 20, but this can also be said to be installed along the axis of the inner tube 20, in that sense, a plurality of The partition plate 21 is an example of a plurality of partitions provided along the axis of the main pipe.

In addition, although not shown in Fig. 7, the orifice plate 40 has a plurality of orifice holes 401 (refer to Fig. 9 or the like) for flowing refrigerant through the plurality of distribution passages 22, respectively.

In addition, the plurality of branch pipes 60 communicate with the plurality of distribution passages 22, respectively. Fig. 7 shows a plurality of branch pipes 60, each showing branch pipes 60a to 60g communicating with distribution passages 22a to 22g.

Here, in this configuration, the first branch pipe and the second branch pipe adjacent to each other of the plurality of branch pipes are, respectively, a first distribution passage and a second distribution passage in which only one of the plurality of partition portions is inserted among the plurality of distribution passages. It can be seen as an example of a configuration connected to. In this case, if the branch pipes 60a and 60b are examples of the first branch pipe and the second branch pipe, respectively, the distribution passages 22a and 22b become examples of the first distribution passage and the second distribution passage, respectively, and the partition The plate 21a becomes an example of a plurality of partitions.

Further, in the above configuration, the first branch pipe and the second branch pipe do not need to be adjacent branch pipes, and the first distribution passage and the second distribution passage may sandwich at least one of the plurality of partitions. Do. In this case, if the branch pipes 60a and 60c are examples of the first branch pipe and the second branch pipe, respectively, the distribution passages 22a and 22c are examples of the first distribution passage and the second distribution passage, respectively, and the partition The plates 21a and 2lb are at least one example of a plurality of partitions.

Further, as shown, in the second embodiment, since the distribution passages 22a to 22g are formed by providing a constant twist angle with respect to the central axis of the inner tube 20, all of the inner tube 20 circumferentially It rotates and passes through the right side of the inner tube 20. Accordingly, the branch pipes 60a to 60g can be directly extended to the right by communicating with the portions passing through the right side of the inner pipe 20 in the distribution passages 22a to 22g, respectively. Here, it can be understood that such a configuration is an example of a configuration in which a plurality of partitions are provided so as to achieve a constant twist angle with respect to the axis of the main pipe.

Further, as the branch pipes 60a to 60g, only one set may be provided, but in the second embodiment, not only one set but also a plurality of sets are provided in parallel as shown. Here, the latter configuration can be regarded as an example of a configuration in which a plurality of branch pipes includes at least two branch pipes connected to one of the plurality of distribution passages.

The sectional view A-A of the distributor 2 in FIG. 7 is the same as that of FIG. 3. Also in the second embodiment, the inner diameter Di of the axial flow portion 62a is configured differently between the plurality of branch pipes 60a (three branch pipes 60a in FIG. 7 ). In addition, in the second embodiment as well, the insertion length L is configured differently between the plurality of branch pipes 60a (three branch pipes 60a in Fig. 7). On the other hand, the same applies to the branch pipes 60b to 60g communicating with the distribution passages 22b to 22g.

8 is a partially enlarged view of the distributor 2 in the second embodiment. As shown, the partition plate 21 is formed between the outer tube 10 and the inner tube 20 so as to achieve a constant twist angle θ with respect to the central axis of the inner tube 20. Thereby, since the centrifugal force of the refrigerant in the distribution passage 22 can be changed, the refrigerant flow can be adjusted, and the heat exchange capability can be increased.

In addition, among the plurality of branch pipes 60, first for a specific example in which the inner diameter Di of the axial flow portion 62 and the insertion length L of the branch pipe 60 are different. It can be considered the same as in the embodiment.

On the other hand, even in the second embodiment, the inner diameter Di of the axial flow portion 62 and the insertion length L of the branch pipe 60 are configured differently between the plurality of branch pipes 60. , It is not limited to this. The inner diameter Di of the axial flow part 62 and the insertion length L of the branch pipe 60 may be the same.

[Third Embodiment]

The overall configuration of the distributor 3 in the third embodiment is the same as in FIG. 2 or 7. The distributor 3 also distributes a refrigerant as an example of a fluid passing through the interior. In addition, the distributor 3 includes a cylindrical outer tube 10, an inner tube 20 installed in the outer tube 10, and an orifice plate 40 installed at an end of the inner tube 20 on an upstream side of the coolant. Here, the outer appearance 10 is made into a cylindrical shape, but it may be a cylindrical shape, and in that sense, the outer appearance 10 is an example of a cylindrical main tube. Further, the distributor 3 includes a plurality of branch pipes 60 fixed to the downstream side of the refrigerant and connected to a refrigerant pipe of a heat exchanger (not shown).

Further, the inner tube 20 is provided with a plurality of partition plates 21, thereby forming a plurality of distribution passages 22.

9 is a partially enlarged view of the distributor 3 in the third embodiment. As shown, the orifice plate 40 has a plurality of orifice holes 401 for flowing refrigerant into the plurality of distribution passages 22, respectively. 9 shows a plurality of orifice holes 401, respectively, showing orifice holes 401a to 401g for flowing refrigerant through distribution passages 22a to 22g. Here, the orifice holes 401a to 401g are examples of a plurality of orifice holes respectively corresponding to a plurality of distribution passages. In the third embodiment, the pore diameter Dh is configured differently between the plurality of orifice holes 401. Accordingly, it is possible to adjust the flow of the refrigerant into the plurality of distribution passages 22, thereby increasing the heat exchange capacity.

On the other hand, the plate thickness of the orifice plate 40 may be, for example, 1 mm or more.

[Fourth Embodiment]

The overall configuration of the distributor 4 in the fourth embodiment is the same as in FIG. 2 or 7. The distributor 4 also distributes a refrigerant as an example of a fluid passing through the interior. In addition, the distributor 4 includes a cylindrical outer tube 10, an inner tube 20 installed in the outer tube 10, and an orifice plate 40 installed at an end of the inner tube 20 on the upstream side of the coolant. Here, the outer appearance 10 is made into a cylindrical shape, but it may be a cylindrical shape, and in that sense, the outer appearance 10 is an example of a cylindrical main tube. Further, the distributor 4 is provided with a plurality of branch pipes 60 fixed to the downstream side of the refrigerant and connected to the refrigerant pipe of a heat exchanger (not shown).

Further, the inner tube 20 is provided with a plurality of partition plates 21, thereby forming a plurality of distribution passages 22.

10 is an A-A cross-sectional view of a distributor 4 in the fourth embodiment. As shown, partition plates 21a to 21g are provided in the inner tube 20, thereby forming distribution passages 22a to 22g. Then, the branch pipe 60a fixed in communication with the distribution passage 22a is sandwiched between the partition plates 21a and 21g forming the distribution passage 22a. In addition, in the fourth embodiment, the cross-sectional area is configured differently between the plurality of distribution passages 22. Here, such a configuration can be regarded as an example of a configuration in which a plurality of partition portions form a plurality of distribution passages with different cross-sectional areas when the plurality of distribution passages are cut at a specific cut surface. Accordingly, it is possible to adjust the flow of the refrigerant into the plurality of distribution passages 22, thereby increasing the heat exchange capacity.

[Fifth Embodiment]

11 is a perspective view of a distributor 5 in a fifth embodiment. As shown, the distributor 5 is divided into a first distributor 71 and a second distributor 72. Here the first distributor 71 and the second distributor 72 are examples of two distributor elements. In addition, the distributor 5 also includes a pipe 70 for branching the refrigerant immediately before flowing into the first distributor 71 and flowing into the second distributor 72.

The overall configuration of the first distributor 71 and the second distributor 72 is the same as in FIG. 2 or 7. The first distributor 71 and the second distributor 72 also distribute refrigerant as an example of a fluid passing through the inside, respectively. In addition, the first distributor 71 and the second distributor 72 are, respectively, a cylindrical outer tube 10, an inner tube 20 installed in the outer tube 10, and an orifice installed at an upstream end of the refrigerant of the inner tube 20 It has a plate 40. Here, the outer appearance 10 is made into a cylindrical shape, but it may be a cylindrical shape, and in that sense, the outer appearance 10 is an example of a cylindrical main tube. Further, the first distributor 71 and the second distributor 72 each have a plurality of branch pipes 60 fixed to the downstream side of the refrigerant and connected to a refrigerant pipe of a heat exchanger (not shown).

In addition, in each of the first distributor 71 and the second distributor 72, a plurality of partition plates 21 are provided in the inner tube 20, thereby forming a plurality of distribution passages 22.

Thus, in the fifth embodiment, the distributor 5 is divided into the first distributor 71 and the second distributor 72. Accordingly, the flow of the refrigerant in the plurality of distribution passages 22 can be adjusted, and the heat exchange capability can be increased.

[Sixth Embodiment]

12 is a diagram showing the overall configuration of a heat exchanger unit including a distributor 6 and a heat exchanger 8 in the sixth embodiment.

The overall configuration of the distributor 6 included in the heat exchanger unit in the sixth embodiment is the same as in FIG. 2 or 7. The distributor 6 also distributes the refrigerant as an example of the fluid passing through the interior. Further, the distributor 6 includes a cylindrical outer tube 10, an inner tube 20 installed in the outer tube 10, and an orifice plate 40 installed at an end of the inner tube 20 on the upstream side of the coolant. Here, the outer appearance 10 is made into a cylindrical shape, but it may be a cylindrical shape, and in that sense, the outer appearance 10 is an example of a cylindrical main tube. Further, the distributor 6 includes a plurality of branch pipes 60 fixed to the downstream side of the refrigerant and connected to a refrigerant pipe of a heat exchanger (not shown).

Further, the inner tube 20 is provided with a plurality of partition plates 21, thereby forming a plurality of distribution passages 22.

On the other hand, the heat exchanger 8 included in the heat exchanger unit in the sixth embodiment performs heat exchange between the refrigerant as an example of the fluid distributed by the distributor 6 and air. In addition, a plurality of pins 81 arranged side by side at predetermined intervals in the vertical direction, a plurality of refrigerant pipes 82 and a plurality of refrigerant pipes 82 installed in parallel so as to be inserted into the insertion holes of each pin 81 are provided. A header 83 for joining the flowed refrigerant and an external connection pipe 84 for flowing the refrigerant out of the heat exchanger 8 from the header 83 are provided.

Then, the plurality of branch pipes 60 of the distributor 6 are connected to the plurality of refrigerant pipes 82 of the heat exchanger 8, respectively.

At this time, in the sixth embodiment, the height of the distributor 6 is made lower than the height of the heat exchanger 8. This can be realized by compacting the branch pipes 60 extending parallel from the distributor 6, assuming that the overall configuration of the distributor 6 is shown in FIG. 2. In addition, assuming that the overall configuration of the distributor 6 is shown in FIG. 7, the plurality of partition plates 21 extend in parallel from the distributor 6 by increasing the twist angle formed with the central axis of the inner tube 20. Since the branch pipe 60 can be concentrated, it can be realized. Accordingly, the flow of the refrigerant in the plurality of distribution passages 22 can be adjusted, and the heat exchange capability can be increased.

On the other hand, in the sixth embodiment, since the distributor 6 and the heat exchanger 8 are provided vertically and elongated, the height of the distributor 6 and the height of the heat exchanger 8 are compared, but this is not limited thereto. It is okay to compare the length in the direction in which the branch pipes 60 of the distributor 6 are arranged in parallel with the length in the direction in which the refrigerant pipes 82 of the heat exchanger 8 are arranged in parallel. That is, the configuration in which the height of the distributor 6 is lower than the height of the heat exchanger 8 is that the length of the distributor is shorter than the length in the direction in which a plurality of fluid pipes through which the fluid distributed by the distributor of the heat exchanger flows are arranged side by side. This is an example of the configuration.

[Seventh embodiment]

The overall configuration of the distributor 7 in the seventh embodiment is the same as in FIG. 2 or 7. The distributor 7 also distributes a refrigerant as an example of a fluid passing through the interior. In addition, the distributor 7 includes a cylindrical outer tube 10, an inner tube 20 installed in the outer tube 10, and an orifice plate 40 installed at an end of the inner tube 20 on an upstream side of the coolant. Here, the outer appearance 10 is made into a cylindrical shape, but it may be a cylindrical shape, and in that sense, the outer appearance 10 is an example of a cylindrical main tube. Further, the distributor 3 includes a plurality of branch pipes 60 fixed to the downstream side of the refrigerant and connected to a refrigerant pipe of a heat exchanger (not shown).

Further, the inner tube 20 is provided with a plurality of partition plates 21, thereby forming a plurality of distribution passages 22.

13 is a partially enlarged view of the distributor 7 in the seventh embodiment. Also in this figure, the outer tube 10, the inner tube 20, and the orifice plate 40 are shown. Then, in the seventh embodiment, a positioning mechanism for aligning the positions of the plurality of orifice holes 401 and the plurality of distribution passages 22 is provided. Specifically, a convex portion 47 is formed in the orifice plate 40, a concave portion 27 is formed in the corresponding partition plate 21 among the plurality of partition plates 21, and the convex portion 47 is concave. By fitting into the part 27, the position of each of the plurality of orifice holes 401 and each of the plurality of distribution passages 22 is aligned.

Accordingly, it is possible to adjust the flow of the refrigerant into the plurality of distribution passages 22, thereby increasing the heat exchange capacity.

[Eighth embodiment]

14 is a diagram showing the overall configuration of a distributor 101 in the eighth embodiment. The distributor 101 distributes a refrigerant as an example of a fluid passing through the interior. And, as shown, the distributor 101 includes a cylindrical outer tube 10 and an inner tube 20 provided in the outer tube 10. Here, the outer appearance 10 is made into a cylindrical shape, but it may be a cylindrical shape, and in that sense, the outer appearance 10 is an example of a cylindrical main tube.

In addition, FIG. 14 shows the internal structure of the inner tube 20 by cutting out the front side of the outer tube 10. As shown, a plurality of partition plates 21 are provided in the inner tube 20, and thus, a plurality of distribution passages 22 are formed. In the eighth embodiment, the plurality of partition plates 21 are provided parallel to the central axis of the inner pipe 20. 14 is a state viewed from the front side. As the plurality of partition plates 21, only the partition plates 21a to 21c (in addition, only the end portions on the outer surface 10 side) are shown, and the plurality of distribution passages 22 ), only the distribution passages 22a to 22d are shown. Here, the plurality of partition plates 21 are supposed to be installed in parallel to the central axis of the inner tube 20, but it is acceptable if they are installed along the axis of the inner tube 20, and in that sense, the plurality of partition plates 21 is the main pipe ( It is an example of a plurality of partitions installed along the axis of the main column.

And, in this distributor 101, the outer tube 10 and the inner tube 20 are integrated. That is, the plurality of partition plates 21 is an example of a plurality of partition portions provided integrally with the main pipe.

In addition, the distributor 101 includes an inlet portion 30 for guiding, for example, a weld-coupled refrigerant to an upstream end of the refrigerant of the outer tube 10, and an orifice plate 40 installed at an upstream end of the refrigerant of the inner tube 20. ), and, for example, a cap portion 50 that is welded to an end portion of the exterior 10 opposite to the upstream side of the refrigerant. On the other hand, since the inlet portion 30 is provided outside the orifice plate 40, the orifice plate 40 is not visible from the outside, but the orifice plate 40 is shown here. In addition, although not shown in Fig. 14, the orifice plate 40 has a plurality of orifice holes 411 (see Fig. 17) for flowing refrigerant through the plurality of distribution passages 22, respectively. In addition, the cap portion 50 blocks the entire plurality of distribution passages 22.

In addition, the distributor 101 is provided with a plurality of branch pipes 60 fixed to the downstream side of the refrigerant and connected to a refrigerant pipe of a heat exchanger (not shown).

The plurality of branch pipes 60 communicate with the plurality of distribution passages 22, respectively. Fig. 14 shows a plurality of branch pipes 60, in addition to the branch pipes 60a to 60d communicating with the distribution passages 22a to 22d, respectively, and since they are located on the opposite side of the inner pipe 20, the distribution passages 22e to not shown. The branch pipes 60e to 60g each communicating with 22g) are also shown.

Here, in this configuration, the first branch pipe and the second branch pipe adjacent to each other of the plurality of branch pipes are, respectively, of the plurality of distribution passages, a first distribution passage and a second distribution passage in which only one of the plurality of partitions is inserted. It can be understood as an example of a configuration connected to a passage. In this case, if the branch pipes 60a and 60b are examples of the first branch pipe and the second branch pipe, respectively, the distribution passages 22a and 22b become examples of the first distribution passage and the second distribution passage, respectively, and the partition The plate 21a becomes an example of a plurality of partitions.

Further, in the above configuration, the first branch pipe and the second branch pipe do not need to be adjacent branch pipes, and the first distribution passage and the second distribution passage may sandwich at least one of the plurality of partitions. Do. In this case, if the branch pipes 60a and 60c are examples of the first branch pipe and the second branch pipe, respectively, the distribution passages 22a and 22c are examples of the first distribution passage and the second distribution passage, respectively, and the partition The plates 21a and 2lb are at least one example of a plurality of partitions.

In addition, as shown, in the eighth embodiment, the branch pipe 60a extends directly to the right from the distribution passage 22a. The branch pipes 60b to 60d face one end forward from the distribution passages 22b to 22d, which are bent and extend to the right. The branch pipes 60e to 60g are once directed toward the opposite side from the distribution passages 22e to 22g, which are bent and extend to the right.

Further, as the branch pipes 60a to 60g, only one set may be provided, but in the eighth embodiment, not only one set, but also a plurality of sets are provided in parallel as shown. Here, the latter configuration can be regarded as an example of a configuration in which a plurality of branch pipes includes at least two branch pipes connected to one of the plurality of distribution passages.

15 is an A-A cross-sectional view of the distributor 101 in FIG. 14. As shown, in the distributor 101, the outer tube 10 and the inner tube 20 are integrated. Further, partition plates 21a to 21g are provided in the inner tube 20, thereby forming distribution passages 22a to 22g. Here, since the partition plate 21 couples the central portion of the outer tube 10 and the inner tube 20, the width between the partition plates 21 in the distribution passage 22 is from the outside of the inner tube 20 to the central portion. It is getting smaller as we go. In Fig. 15, the branch pipe 60a fixed by communicating with the distribution passage 22a is sandwiched between the partition plates 21a and 21g forming the distribution passage 22a. In addition, in the eighth embodiment, the inner diameter D of the axial flow portion 62a is different between the plurality of branch pipes 60a (three branch pipes 60a in Fig. 14). Has been. In addition, in the eighth embodiment, the insertion length L is configured to be different between the plurality of branch pipes 60a (three branch pipes 60a in FIG. 14). On the other hand, Fig. 15 is an AA cross-sectional view of the distributor 101 in Fig. 14, and thus only the branch pipe 60a communicating with the distribution passage 22a is shown, but the branch pipe communicating with the distribution passage 22b to 22g ( The same is true for 60b to 60g).

On the other hand, in the eighth embodiment, the inner diameter (D) of the axial flow portion 62 and the insertion length (L) of the branch pipe 60 are both different between the plurality of branch pipes 60. However, it is not limited to this. At least either one of the inner diameter D of the axial flow part 62 and the insertion length L of the branch pipe 60 may be configured to be different.

As described above, in the eighth embodiment, the flow resistance of the refrigerant in one distribution passage 22 is changed in a state in which the outer tube 10 and the inner tube 20 are integrated. Accordingly, it is possible to adjust the flow of the refrigerant while preventing leakage of the refrigerant, thereby increasing the heat exchange capability.

[9th embodiment]

16 is a diagram showing the overall configuration of a distributor 102 in the ninth embodiment. The distributor 102 also distributes a refrigerant as an example of a fluid passing through the interior. And, as shown, the distributor 102 includes a cylindrical outer tube 10 and an inner tube 20 provided in the outer tube 10. Here, the outer appearance 10 is made into a cylindrical shape, but it may be a cylindrical shape, and in that sense, the outer appearance 10 is an example of a cylindrical main tube.

In addition, FIG. 16 also shows the internal structure of the inner tube 20 by cutting out the front side of the outer tube 10. As shown, a plurality of partition plates 21 are provided in the inner tube 20, and thus, a plurality of distribution passages 22 are formed. In the ninth embodiment, the plurality of partition plates 21 are formed by providing a constant twist angle with respect to the central axis of the inner tube 20. Fig. 16 shows a plurality of partition plates 21, which are partition plates 21a to 21g (only the end portions on the outer surface 10 side), as the plurality of distribution passages 22, distribution passages 22a to 22g. ). Here, it is assumed that the plurality of partition plates 21 are formed by providing a constant twist angle with respect to the central axis of the inner tube 20, but this can also be said to be installed along the axis of the inner tube 20, in that sense, a plurality of The partition plate 21 is an example of a plurality of partitions provided along the axis of the main pipe.

And also in this distributor 102, the outer tube 10 and the inner tube 20 are integrated. That is, the plurality of partition plates 21 is an example of a plurality of partition portions provided integrally with the main pipe.

In addition, the distributor 102 includes an inlet portion 30 for guiding, for example, a weld-coupled refrigerant to an upstream end of the refrigerant of the outer tube 10, and an orifice plate 40 installed at the upstream end of the refrigerant of the inner tube 20. ), and, for example, a cap portion 50 that is welded to an end portion of the exterior 10 opposite to the upstream side of the refrigerant. On the other hand, since the inlet portion 30 is provided outside the orifice plate 40, the orifice plate 40 is not visible from the outside, but the orifice plate 40 is shown here. Further, although not shown in Fig. 16, the orifice plate 40 has a plurality of orifice holes 411 (see Fig. 17) for flowing refrigerant through the plurality of distribution passages 22, respectively. In addition, the cap portion 50 blocks the entire plurality of distribution passages 22.

In addition, the distributor 102 is provided with a plurality of branch pipes 60 fixed to the downstream side of the refrigerant and connected to the refrigerant pipe of a heat exchanger (not shown).

The plurality of branch pipes 60 communicate with the plurality of distribution passages 22, respectively. Fig. 16 shows a plurality of branch pipes 60, and each of the branch pipes 60a to 60g communicated with the distribution passages 22a to 22g.

Here, in this configuration, the first branch pipe and the second branch pipe adjacent to each other of the plurality of branch pipes are, respectively, of the plurality of distribution passages, a first distribution passage and a second distribution passage in which only one of the plurality of partitions is inserted. It can be understood as an example of a configuration connected to a passage. In this case, if the branch pipes 60a and 60b are examples of the first branch pipe and the second branch pipe, respectively, the distribution passages 22a and 22b become examples of the first distribution passage and the second distribution passage, respectively, and the partition The plate 21a becomes an example of a plurality of partitions.

Further, in the above configuration, the first branch pipe and the second branch pipe do not need to be adjacent branch pipes, and the first distribution passage and the second distribution passage may sandwich at least one of the plurality of partitions. Do. In this case, if the branch pipes 60a and 60c are examples of the first branch pipe and the second branch pipe, respectively, the distribution passages 22a and 22c are examples of the first distribution passage and the second distribution passage, respectively, and the partition The plates 21a and 2lb are at least one example of a plurality of partitions.

Further, as shown, in the ninth embodiment, since the distribution passages 22a to 22g are formed by providing a constant twist angle with respect to the central axis of the inner tube 20, all of the inner tube 20 circumferentially It rotates and passes through the right side of the inner tube 20. Accordingly, the branch pipes 60a to 60g can be directly extended to the right by communicating with the portions passing through the right side of the inner pipe 20 in the distribution passages 22a to 22g, respectively. Here, such a configuration can be understood as an example of a configuration in which a plurality of partitions are provided so as to achieve a constant twist angle with respect to the axis of the main pipe.

Further, as the branch pipes 60a to 60g, only one set may be provided, but in the ninth embodiment, not only one set but also a plurality of sets are provided in parallel as shown in the ninth embodiment. Here, the latter configuration can be regarded as an example of a configuration in which a plurality of branch pipes includes at least two branch pipes connected to one of the plurality of distribution passages.

A-A cross-sectional view of the distributor 102 in FIG. 16 is the same as in FIG. 15. Also in the ninth embodiment, the inner diameter D of the axial flow portion 62a is configured to be different between the plurality of branch pipes 60a (three branch pipes 60a in FIG. 16). . In addition, in the ninth embodiment as well, the insertion length L is configured to be different between a plurality of branch pipes 60a (three branch pipes 60a in Fig. 16). On the other hand, the same applies to the branch pipes 60b to 60g communicating with the distribution passages 22b to 22g.

On the other hand, also in the ninth embodiment, between the plurality of branch pipes 60, so that both the inner diameter D of the axial flow portion 62 and the insertion length L of the branch pipe 60 are different. Although configured, it is not limited to this. At least either one of the inner diameter D of the axial flow part 62 and the insertion length L of the branch pipe 60 may be configured to be different.

As described above, in the ninth embodiment, the flow resistance of the refrigerant in one distribution passage 22 is changed in a state in which the outer tube 10 and the inner tube 20 are integrated. Accordingly, it is possible to adjust the refrigerant classification while preventing the refrigerant from leaking, thereby increasing the heat exchange capability.

[Tenth Embodiment]

The overall configuration of the distributor 103 in the tenth embodiment is the same as in FIG. 14 or 16. The distributor 103 also distributes a refrigerant as an example of a fluid passing through the interior. In addition, the distributor 103 has a cylindrical outer tube 10 and an inner tube 20 provided in the outer tube 10. Here, the outer appearance 10 is made into a cylindrical shape, but it may be a cylindrical shape, and in that sense, the outer appearance 10 is an example of a cylindrical main tube.

Further, the inner tube 20 is provided with a plurality of partition plates 21, thereby forming a plurality of distribution passages 22.

And this distributor 103 also has the outer tube 10 and the inner tube 20 integrated. That is, the plurality of partition plates 21 is an example of a plurality of partition portions provided integrally with the main pipe.

In addition, the distributor 103 includes an inlet portion 30 for guiding, for example, a welded refrigerant to an upstream end of the refrigerant of the outer tube 10, and an orifice plate 40 installed at the upstream end of the refrigerant of the inner tube 20. ), and, for example, a cap portion 50 that is welded to an end portion of the exterior 10 opposite to the upstream side of the refrigerant.

In addition, the distributor 103 includes a plurality of branch pipes 60 fixed to the downstream side of the refrigerant and connected to a refrigerant pipe of a heat exchanger (not shown).

17 is a partially enlarged view of the distributor 103 in the tenth embodiment. As shown, in the distributor 103, the orifice plate 40 is a protruding orifice plate 41, and a beeswax sheet 42 is provided between the protruding orifice plate 41 and the outer surface 10. Has been.

The protruding orifice plate 41 has a plurality of orifice holes 411 for flowing refrigerant through the plurality of distribution passages 22, respectively. Specifically, as shown in Fig. 17, each of the distribution passages 22a to 22g has orifice holes 411a to 411g for flowing the refrigerant. In addition, the protruding orifice plate 41 has a plurality of protrusions 412 that are respectively fitted into the plurality of distribution passages 22. Specifically, not all are shown in FIG. 17, but has protrusions 412a to 412g that are respectively fitted into the distribution passages 22a to 22g. On the other hand, although not shown in the drawing, each of the plurality of protrusions 412 is assumed to have a through hole in the center thereof for flowing the refrigerant introduced from the corresponding orifice hole 411 into the corresponding distribution passage 22.

When the plurality of protrusions 412 of the protruding orifice plate 41 are fitted into the plurality of distribution passages 22 of the outer surface 10, the beeswax sheet 42 is ) To put them in close contact. The beeswax sheet 42 has a plurality of sheet holes 421 into which a plurality of protrusions 412 are respectively inserted. In addition, the beeswax sheet 42 has a plurality of protrusions 422 fitted into the plurality of distribution passages 22, respectively. On the other hand, although not shown in the drawing, each of the plurality of protrusions 422 is assumed to have a through hole in the center thereof for flowing the refrigerant introduced from the corresponding sheet hole 421 into the corresponding distribution passage 22.

On the other hand, the beeswax sheet 42 may not necessarily be installed. Instead of installing the beeswax sheet 42, a protruding orifice plate when the plurality of protrusions 412 of the protruding orifice plate 41 are fitted into the plurality of distribution passages 22 of the outer shell 10 ( It is also possible to apply a beeswax material to the joint portion between 41) and the exterior 10.

As described above, in the tenth embodiment, the orifice plate 40 is used as the protruding orifice plate 41, and the protrusions 412 are inserted into the plurality of distribution passages 22 of the outer shell 10. Accordingly, it is possible to adjust the flow of the refrigerant while preventing the refrigerant from leaking from the joint portion between the orifice plate 40 and the outer surface 10, thereby increasing the heat exchange capability.

[Eleventh embodiment]

The overall configuration of the distributor 104 in the eleventh embodiment is the same as in FIG. 14 or 16. The distributor 104 also distributes a refrigerant as an example of a fluid passing through the interior. In addition, the distributor 104 has a cylindrical outer tube 10 and an inner tube 20 provided in the outer tube 10. Here, the outer appearance 10 is made into a cylindrical shape, but it may be a cylindrical shape, and in that sense, the outer appearance 10 is an example of a cylindrical main tube.

Further, the inner tube 20 is provided with a plurality of partition plates 21, thereby forming a plurality of distribution passages 22.

And also in this distributor 104, the outer tube 10 and the inner tube 20 are integrated. That is, the plurality of partition plates 21 is an example of a plurality of partition portions provided integrally with the main pipe.

In addition, the distributor 104 includes an inlet portion 30 for guiding, for example, a weld-coupled refrigerant to an upstream end of the refrigerant of the outer tube 10, and an orifice plate 40 installed at the upstream end of the refrigerant of the inner tube 20. ), and, for example, a cap portion 50 that is welded to an end portion of the exterior 10 opposite to the upstream side of the refrigerant.

In addition, the distributor 104 is provided with a plurality of branch pipes 60 fixed to the downstream side of the refrigerant and connected to a refrigerant pipe of a heat exchanger (not shown).

18 is a partially enlarged view of a distributor 104 in the eleventh embodiment. As shown, in the dispenser 104, the cap portion 50 is a protruding cap portion 51, and a beeswax sheet 52 is provided between the protruding cap portion 51 and the exterior 10.

The protruding cap portion 51 has a plurality of protruding portions 512 that are respectively fitted into the plurality of distribution passages 22. Specifically, not all are shown in FIG. 18, but has protrusions 512a to 512g respectively fitted into distribution passages 22a to 22g. On the other hand, the plurality of protrusions 512 are hidden by the cap 50 and are not visible at the angle of the drawing, but here, the cap 50 is transmitted through and is indicated by a broken line.

When the plurality of protrusions 512 of the protrusion-shaped cap part 51 are fitted into the plurality of distribution passages 22 of the exterior 10, the beeswax sheet 52 is formed in the protruding cap 51 and the exterior 10. They are put in and put them together. The beeswax sheet 52 has a plurality of sheet holes 521 into which a plurality of protrusions 512 are respectively inserted. In addition, the beeswax sheet 52 has a plurality of protrusions 522 that are respectively fitted into the plurality of distribution passages 22.

On the other hand, the beeswax sheet 52 may not necessarily be installed. Instead of installing the beeswax sheet 52, the protruding cap portion 51 when the plurality of protruding portions 512 of the protruding cap portion 51 are fitted into the plurality of distribution passages 22 of the outer shell 10 It is also possible to apply a beeswax material to the joint portion between the and the exterior (10).

As described above, in the eleventh embodiment, the cap portion 50 is used as the protruding cap portion 51, and the protrusion portion 512 is fitted into the plurality of distribution passages 22 of the outer shell 10. Accordingly, it is possible to adjust the flow of the refrigerant while preventing leakage of the refrigerant from the joint portion of the cap portion 50 and the outer portion 10, thereby increasing the heat exchange capability.

[12th embodiment]

The overall configuration of the distributor 105 in the twelfth embodiment is the same as in FIG. 14 or 16. The distributor 105 also distributes a refrigerant as an example of a fluid passing through the interior. In addition, the distributor 105 includes a cylindrical outer tube 10 and an inner tube 20 provided in the outer tube 10. Here, the outer appearance 10 is made into a cylindrical shape, but it may be a cylindrical shape, and in that sense, the outer appearance 10 is an example of a cylindrical main tube.

Further, the inner tube 20 is provided with a plurality of partition plates 21, thereby forming a plurality of distribution passages 22.

And this distributor 105 also has the outer tube 10 and the inner tube 20 integrated. That is, the plurality of partition plates 21 is an example of a plurality of partition portions provided integrally with the main pipe.

In addition, the distributor 105 includes an inlet portion 30 for guiding, for example, a welded refrigerant to an upstream end of the refrigerant of the outer tube 10, and an orifice plate 40 installed at the upstream end of the inner tube 20. ), and, for example, a cap portion 50 that is welded to an end portion of the exterior 10 opposite to the upstream side of the refrigerant.

In addition, the distributor 105 is provided with a plurality of branch pipes 60 fixed to the downstream side of the refrigerant and connected to a refrigerant pipe of a heat exchanger (not shown).

19 is a perspective view of an exterior cover 12 used in the twelfth embodiment. As shown, the outer cover 12 has a plurality of burring holes 13. The plurality of branch pipes 60 are connected to the outer cover 12 by being fitted into the plurality of burring holes 13, respectively. Here, the outer cover 12 is an example of a cover provided on the outer periphery of the main pipe.

In addition, FIG. 20 is a partially enlarged view of the distributor 105 in the twelfth embodiment. In the distributor 105 having the configuration of FIG. 16, since the branch pipe 60 is connected from one direction, it is sufficient to attach only one outer cover 12 to the outer side 10. However, here, it is assumed that the branch pipe 60 is connected from a plurality of directions like the distributor 105 having the configuration of FIG. 14. Accordingly, the outer cover 12a having the burring hole 13a and the outer cover 12b having the burring hole 13b are attached in different directions. In this case, as shown, the outer cover 12a is fixed to the outer side 10 by bending the locking portion 14a at the end thereof in the direction indicated by the arrow Da. On the other hand, the exterior cover 12b is fixed to the exterior 10 by bending the locking portion 14b at its end in the direction indicated by the arrow Db. Alternatively, the exterior covers 12a and 12b are not fixed to the exterior 10 by bending the locking portions 14a and 14b at their ends, but, for example, the exterior 10 and the exterior cover 10 and The outer cover 12a, 12b may be joined together and fixed to the outer 10 by winding it with a steel wire.

On the other hand, in FIG. 20, two exterior covers 12 are attached to the exterior 10, but three or more exterior covers 12 may be attached to the exterior 10.

Further, in the above, a burring hole 13 is formed in the exterior cover 12 to attach the exterior cover 12 to the exterior 10, but the present invention is not limited thereto. The burring hole 13 may be formed directly in the exterior 10.

As described above, in the twelfth embodiment, the plurality of branch pipes 60 are inserted into the plurality of burring holes 13, respectively. As a result, it is possible to adjust the flow of the refrigerant while preventing leakage of the refrigerant from the junction portion of the branch pipe 60 and the outer surface 10, thereby increasing the heat exchange capability.

[Thirteenth embodiment]

FIG. 21 is a diagram showing the overall configuration of a heat exchanger unit including a distributor 106 and a heat exchanger 8 in the thirteenth embodiment.

The overall configuration of the distributor 106 included in the heat exchanger unit in the thirteenth embodiment is the same as in FIG. 14 or 16. The distributor 106 also distributes a refrigerant as an example of a fluid passing through the interior. In addition, the distributor 106 includes a cylindrical outer tube 10 and an inner tube 20 provided in the outer tube 10. Here, the outer appearance 10 is made into a cylindrical shape, but it may be a cylindrical shape, and in that sense, the outer appearance 10 is an example of a cylindrical main tube.

Further, the inner tube 20 is provided with a plurality of partition plates 21, thereby forming a plurality of distribution passages 22.

And also in this distributor 106, the outer tube 10 and the inner tube 20 are integrated. That is, the plurality of partition plates 21 is an example of a plurality of partition portions provided integrally with the main pipe.

In addition, the distributor 106 includes an inlet portion 30 for guiding, for example, a weld-coupled refrigerant to an upstream end of the refrigerant of the outer tube 10, and an orifice plate 40 installed at the upstream end of the refrigerant of the inner tube 20. ), and, for example, a cap portion 50 that is welded to an end portion of the exterior 10 opposite to the upstream side of the refrigerant.

In addition, the distributor 106 is provided with a plurality of branch pipes 60 fixed to the downstream side of the refrigerant and connected to the refrigerant pipe 82 of a heat exchanger to be described later.

On the other hand, the heat exchanger 8 included in the heat exchanger unit in the thirteenth embodiment performs heat exchange between the refrigerant as an example of the fluid distributed by the distributor 106 and air. And, a plurality of refrigerant pipes 82 as an example of a plurality of fins 81 arranged side by side at predetermined intervals in the vertical direction, and a plurality of fluid pipes installed in parallel so as to be inserted into the insertion holes of each of the pins 81, A header 83 for joining the refrigerant flowing through the plurality of refrigerant pipes 82 and an external connection pipe 84 for flowing the refrigerant out of the heat exchanger 8 from the header 83 are provided.

Then, the plurality of branch pipes 60 of the distributor 106 are connected to the plurality of refrigerant pipes 82 of the heat exchanger 8, respectively.

As described above, in the thirteenth embodiment, the flow resistance of the refrigerant in one distribution passage 22 is changed in a state in which the outer tube 10 and the inner tube 20 are integrated. Accordingly, it is possible to adjust the flow of the refrigerant while preventing leakage of the refrigerant, thereby increasing the heat exchange capability.

[14th embodiment]

Fig. 22 is a diagram showing the overall configuration of a distributor 201 in the fourteenth embodiment. The distributor 201 distributes a refrigerant as an example of a fluid passing through the inside. And, as shown, the distributor 201 includes a cylindrical outer 10, an inner tube 20 installed in the outer tube 10, and an orifice plate 40 installed at an end of the inner tube 20 on the upstream side of the refrigerant. Equipped. Here, the outer appearance 10 is made into a cylindrical shape, but it may be a cylindrical shape, and in that sense, the outer appearance 10 is an example of a cylindrical main tube. In addition, the distributor 201 has an inlet portion 30 for guiding, for example, a weld-coupled refrigerant to an end portion on the upstream side of the refrigerant of the exterior 10, and an end portion opposite to the upstream side of the refrigerant of the exterior 10. For example, it has a cap portion 50 that is welded together. On the other hand, since the inlet portion 30 is provided outside the orifice plate 40, the orifice plate 40 is not visible from the outside, but the orifice plate 40 is shown here. In addition, the distributor 201 has a plurality of branch pipes 60 fixed to the downstream side of the refrigerant and connected to a refrigerant pipe of a heat exchanger (not shown).

In addition, FIG. 22 also shows the internal structure of the inner tube 20 by cutting out the front side of the outer tube 10. As shown, a plurality of partition plates 21 are provided in the inner tube 20, and thus, a plurality of distribution passages 22 are formed. In the fourteenth embodiment, the plurality of partition plates 21 are provided parallel to the central axis of the inner pipe 20. 22 is a state viewed from the front side, as the plurality of partition plates 21, only the partition plates 21a to 21c (in addition, only the end portions on the outer surface 10 side) are shown, and a plurality of distribution passages 22 As for, only the distribution passages 22a to 22d are shown. Here, the plurality of partition plates 21 are supposed to be installed in parallel to the central axis of the inner tube 20, but it is acceptable if they are installed along the axis of the inner tube 20, and in that sense, the plurality of partition plates 21 is the main pipe ( It is an example of a plurality of partitions installed along the axis of the main column.

In addition, although not shown in FIG. 22, the orifice plate 40 has a plurality of orifice holes for flowing the refrigerant through the plurality of distribution passages 22, respectively.

In addition, the plurality of branch pipes 60 communicate with the plurality of distribution passages 22, respectively. Fig. 22 is a plurality of branch pipes 60, in addition to the branch pipes 60a to 60d communicating with the distribution passages 22a to 22d, respectively, and since they are located on the opposite side of the inner pipe 20, the distribution passages 22e to not shown in FIG. The branch pipes 60e to 60g each communicating with 22g) are also shown.

Here, in this configuration, the first branch pipe and the second branch pipe adjacent to each other of the plurality of branch pipes are, respectively, of the plurality of distribution passages, a first distribution passage and a second distribution passage in which only one of the plurality of partitions is inserted. It can be understood as an example of a configuration connected to a passage. In this case, if the branch pipes 60a and 60b are examples of the first branch pipe and the second branch pipe, respectively, the distribution passages 22a and 22b become examples of the first distribution passage and the second distribution passage, respectively, and the partition The plate 21a becomes an example of a plurality of partitions.

Further, in the above configuration, the first branch pipe and the second branch pipe do not need to be adjacent branch pipes, and the first distribution passage and the second distribution passage may sandwich at least one of the plurality of partitions. Do. In this case, if the branch pipes 60a and 60c are examples of the first branch pipe and the second branch pipe, respectively, the distribution passages 22a and 22c are examples of the first distribution passage and the second distribution passage, respectively, and the partition The plates 21a and 2lb are at least one example of a plurality of partitions.

In addition, as shown, in the fourteenth embodiment, the branch pipe 60a extends directly to the right from the distribution passage 22a. The branch pipes 60b to 60d face one end forward from the distribution passages 22b to 22d, which are bent and extend to the right. The branch pipes 60e to 60g are once directed toward the opposite side from the distribution passages 22e to 22g, which are bent and extend to the right.

In addition, as for the branch pipes 60a to 60g, only one set may be provided, but in the fourteenth embodiment, not only one set but a plurality of sets are provided in parallel as shown. Here, the latter configuration can be regarded as an example of a configuration in which a plurality of branch pipes includes at least two branch pipes connected to one of the plurality of distribution passages.

23 to 25 are sectional views A-A of the distributor 201 in FIG. 22. As shown, partition plates 21a to 21g are provided in the inner tube 20, thereby forming distribution passages 22a to 22g. Here, since the partition plate 21 couples the center portion of the outer tube 10 and the inner tube 20, the width between the partition plates 21 in the distribution passage 22 is from the outside of the inner tube 20 to the center It is getting smaller as we go. Further, step portions 23a to 23g are provided on the partition plates 21a to 21g, respectively. In addition, the branch pipe 60a fixed in communication with the distribution passage 22a is sandwiched between the partition plates 21a and 21g forming the distribution passage 22a, and is supported by the step portions 23a and 23g. Has been. In this case, assuming that the partition plates 21a and 21g are an example of two partition portions adjacent to each other, the distribution passage 22a becomes an example of one distribution passage formed by the two partition portions, and the branch pipe 60a It becomes an example of a branch pipe connected to one distribution passage among the plurality of branch pipes, and the step portions 23a and 23g serve as an example of at least one step that supports this branch pipe.

On the other hand, in Figs. 23 to 25, although it is assumed that the step portions 23a to 23g each include two steps, it is not limited thereto. The step portions 23a to 23g may include only one step, or may include three or more steps. For example, when the step portions 23a and 23g include two or more steps, the branch pipe 60a may be inserted into the second step from the center of the inner tube 20 or in the step outside the step. In this way, a step exists on the side of the refrigerant inlet of the branch pipe 60, and accordingly, it becomes possible to change the flow resistance of the refrigerant and adjust the flow of the refrigerant.

And, in the fourteenth embodiment, by making the position of the step difference supporting these in the step part 23a, 23g between a plurality of branch pipes 60a (three branch pipes 60a in FIG. 22) different, It may be configured such that the inner diameter D of the axial flow portion 61a shown in Fig. 23 is different. Here, this configuration is an example of a configuration in which the inner diameter of the axial flow portion is different by being supported by a different step among a plurality of steps.

In addition, in the fourteenth embodiment, the positions of the steps supporting these in the step portions 23a and 23g are different between the plurality of branch pipes 60a (three branch pipes 60a in Fig. 22), It may be configured so that the insertion length L of the branch tube 60a shown in Fig. 24 is different. Here, this configuration is an example of a configuration in which the insertion length into the distribution passage is different by being supported by a different step among a plurality of steps.

In addition, in the fourteenth embodiment, as shown in Fig. 25, the insertion length L of the branch pipe 60a may be configured to be smaller than 1/2 of the depth H of the distribution passage 22a. In this case, it is assumed that the stepped portions 23a to 23g include a step at a position outside the half of the depth H of the distribution passages 22a to 22g, and the outer side of the stepped portions 23a and 23g Although it is sufficient to support the branch pipe 60a at the level difference in position, in Fig. 25, the illustration of the level difference at this outer position is omitted.

26 is a graph showing the reason why it is desirable to make the insertion length L of the branch pipe 60 smaller than 1/2 of the depth H of the distribution passage 22. In this graph, the horizontal axis represents the insertion length tolerance. The insertion length tolerance is based on 1/2 of the depth H, the error toward the smaller insertion length L is expressed as a plus, and the error toward the larger insertion length L is expressed as a minus. From the graph, when the insertion length (L) is large, the classification ratio changes rapidly due to the deviation of the insertion length tolerance, and when the insertion length (L) is small, the classification ratio becomes smooth due to the deviation of the insertion length tolerance. You can see that it has changed and is stable. Therefore, it is preferable to make the insertion length L of the branch pipe 60 smaller than 1/2 of the depth H of the distribution passage 22.

Here, such a configuration is an example of a configuration in which the insertion length into the distribution passage becomes smaller than half the depth by being supported by a specific step at a position shallower than half the depth of the distribution passage. In this case, the step at a position outside the half of the depth H of the distribution passages 22a to 22g is an example of a specific step.

On the other hand, Figs. 23 to 25 are AA cross-sectional views of the distributor 201 in Fig. 22, so only the branch pipe 60a communicating with the distribution passage 22a is shown, but the distribution passage 22b to 22g The same is true for the branch pipes 60b to 60g.

As described above, in the fourteenth embodiment, the inner diameter D of the axial flow portion 61 of the branch pipe 60 or the insertion length L of the branch pipe 60 between the plurality of branch pipes 60 ) Was configured to be different, or the insertion length L of the branch pipe 60 was configured to be smaller than 1/2 of the depth H of the distribution passage 22. Accordingly, it is possible to adjust the flow of the refrigerant, so that the heat exchange capacity can be increased.

Moreover, it is an A-A sectional view of the distributor 201 in FIGS. 27 and 22. As shown, partition plates 21a to 21g are provided in the inner tube 20, thereby forming distribution passages 22a to 22g. Here, since the partition plate 21 couples the center portion of the outer tube 10 and the inner tube 20, the width between the partition plates 21 in the distribution passage 22 is from the outside of the inner tube 20 to the center It is getting smaller as we go. Further, step portions 23a to 23g are provided on the partition plates 21a to 21g, respectively. Furthermore, the branch pipe 60a fixed in communication with the distribution passage 22a is sandwiched between the partition plates 21a and 21g forming the distribution passage 22a, and is supported by the step portions 23a and 23g. Has been. In this case, assuming that the partition plates 21a and 21g are an example of two partition portions adjacent to each other, the distribution passage 22a becomes an example of one distribution passage formed by the two partition portions, and the branch pipe 60a It becomes an example of a branch pipe connected to one distribution passage among the plurality of branch pipes, and the step portions 23a and 23g serve as an example of at least one step that supports this branch pipe.

On the other hand, in Fig. 27, the step portions 23a to 23g each include one step, but the present invention is not limited thereto. The step portions 23a to 23g may include two or more steps.

In the fourteenth embodiment, the refrigerant inflow area S1 at the tip of the branch pipe 60a occupying an inner side of the branch pipe 60a supporting the branch pipe 60a of the step portions 23a, 23g, and the step portion 23a, It may be configured such that the refrigerant passage area S2 around the branch pipe 60a occupying the outside of the step supporting the branch pipe 60a of 23g) is different. In this way, if the ratio of the refrigerant inflow area S1 at the tip of the branch pipe 60a and the refrigerant passage area S2 around the branch pipe 60a is changed, the refrigerant fraction can be adjusted, thereby increasing the heat exchange capability. have.

On the other hand, Fig. 27 is an AA cross-sectional view of the distributor 201 in Fig. 22, and thus only the branch pipe 60a in communication with the distribution passage 22a is shown, but the branch pipe in communication with the distribution passages 22b to 22g ( The same is true for 60b to 60g).

[Fifteenth Embodiment]

28 is a diagram showing the overall configuration of a distributor 202 in the fifteenth embodiment. The distributor 202 also distributes a refrigerant as an example of a fluid passing through the interior. And, as shown, the distributor 202 includes a cylindrical outer 10, an inner tube 20 installed in the outer tube 10, and an orifice plate 40 installed at an end of the inner tube 20 on the upstream side of the refrigerant. Equipped. Here, the outer appearance 10 is made into a cylindrical shape, but it may be a cylindrical shape, and in that sense, the outer appearance 10 is an example of a cylindrical main tube. In addition, the distributor 202 has an inlet portion 30 for guiding, for example, a weld-coupled refrigerant to an end portion of the outer side 10 on the upstream side of the refrigerant, and an end portion opposite to the upstream side of the coolant of the outer side 10. For example, it has a cap portion 50 that is welded together. On the other hand, since the inlet portion 30 is provided outside the orifice plate 40, the orifice plate 40 is not visible from the outside, but the orifice plate 40 is shown here. In addition, the distributor 202 is provided with a plurality of branch pipes 60 fixed to the downstream side of the refrigerant and connected to the refrigerant pipe of a heat exchanger (not shown).

Further, FIG. 28 also shows the internal structure of the inner tube 20 by cutting out the front side of the outer tube 10. As shown, a plurality of partition plates 21 are provided in the inner tube 20, and thus, a plurality of distribution passages 22 are formed. In the fifteenth embodiment, the plurality of partition plates 21 are formed by providing a constant twist angle with respect to the central axis of the inner tube 20. Fig. 28 is a plurality of partition plates 21, showing partition plates 21a to 21g (only the end portions on the outer surface 10 side only), as the plurality of distribution passages 22, distribution passages 22a to 22g ). Here, it is assumed that the plurality of partition plates 21 are formed by providing a constant twist angle with respect to the central axis of the inner tube 20, but this can also be said to be installed along the axis of the inner tube 20, and in that sense, a plurality of The partition plate 21 is an example of a plurality of partitions provided along the axis of the main pipe.

In addition, although not shown in Fig. 28, the orifice plate 40 has a plurality of orifice holes for flowing the refrigerant through the plurality of distribution passages 22, respectively.

In addition, the plurality of branch pipes 60 communicate with the plurality of distribution passages 22, respectively. Fig. 28 shows a plurality of branch pipes 60, and each of the branch pipes 60a to 60g communicated with the distribution passages 22a to 22g.

Here, in this configuration, the first branch pipe and the second branch pipe adjacent to each other of the plurality of branch pipes are, respectively, of the plurality of distribution passages, a first distribution passage and a second distribution passage in which only one of the plurality of partitions is inserted. It can be understood as an example of a configuration connected to a passage. In this case, if the branch pipes 60a and 60b are examples of the first branch pipe and the second branch pipe, respectively, the distribution passages 22a and 22b become examples of the first distribution passage and the second distribution passage, respectively, and the partition The plate 21a becomes an example of a plurality of partitions.

Further, in the above configuration, the first branch pipe and the second branch pipe do not need to be adjacent branch pipes, and the first distribution passage and the second distribution passage may sandwich at least one of the plurality of partitions. Do. In this case, if the branch pipes 60a and 60c are examples of the first branch pipe and the second branch pipe, respectively, the distribution passages 22a and 22c are examples of the first distribution passage and the second distribution passage, respectively, and the partition The plates 21a and 2lb are at least one example of a plurality of partitions.

In addition, as shown, in the fifteenth embodiment, since the distribution passages 22a to 22g are formed by providing a constant twist angle with respect to the central axis of the inner tube 20, all of the inner tube 20 circumference 1 It rotates and passes through the right side of the inner tube 20. Accordingly, the branch pipes 60a to 60g can be directly extended to the right by communicating with the portions passing through the right side of the inner pipe 20 in the distribution passages 22a to 22g, respectively. Here, such a configuration can be understood as an example of a configuration in which a plurality of partitions are provided so as to achieve a constant twist angle with respect to the axis of the main pipe.

Further, as for the branch pipes 60a to 60g, only one set may be provided, but in the fifteenth embodiment, not only one set but also a plurality of sets are provided in parallel as shown. Here, the latter configuration can be regarded as an example of a configuration in which a plurality of branch pipes includes at least two branch pipes connected to one of the plurality of distribution passages.

A-A cross-sectional view of the distributor 202 in FIG. 28 is the same as in FIGS. 23 to 25. Also in the fifteenth embodiment, by making the positions of the step differences supporting these in the step portions 23a and 23g between a plurality of branch pipes 60a (three branch pipes 60a in FIG. 28), axial flow It may be configured such that the inner diameter D of the negative 61a is different. Here, this configuration is an example of a configuration in which the inner diameter of the axial flow portion is different by being supported by a different step among a plurality of steps. In addition, in the fifteenth embodiment as well, by making the positions of the steps supporting these in the stepped portions 23a and 23g different between the plurality of branch pipes 60a (three branch pipes 60a in FIG. 28) , If it is configured so that the insertion length (L) of the branch pipe (60a) is different. Here, this configuration is an example of a configuration in which the insertion length into the distribution passage is different by being supported by a different step among a plurality of steps. In addition, in the fifteenth embodiment as well, the insertion length L of the branch pipe 60a may be configured to be smaller than 1/2 of the depth H of the distribution passage 22a. Here, such a configuration is an example of a configuration in which the insertion length into the distribution passage becomes smaller than half the depth by being supported by a specific step at a position shallower than half the depth of the distribution passage. On the other hand, the same applies to the branch pipes 60b to 60g communicating with the distribution passages 22b to 22g.

As described above, in the fifteenth embodiment, the inner diameter D of the axial flow portion 61 of the branch pipe 60 or the insertion length of the branch pipe 60 between the plurality of branch pipes 60 ( L) was configured to be different, or the insertion length (L) of the branch pipe (60) was configured to be smaller than 1/2 of the depth (H) of the distribution passage (22). Accordingly, it is possible to adjust the flow of the refrigerant, so that the heat exchange capacity can be increased.

In addition, the cross-sectional view A-A of the distributor 202 in FIG. 28 may be the same as that in FIG. 27. Also in the fifteenth embodiment, the refrigerant inflow area S1 at the tip of the branch pipe 60a occupying an inner side of the branch pipe 60a supporting the branch pipe 60a of the step portions 23a, 23g, and the step portions 23a, 23g It may be configured such that the refrigerant passage area S2 around the branch pipe 60a occupying the outside of the step supporting the branch pipe 60a is different. In this way, if the ratio of the refrigerant inflow area S1 at the tip of the branch pipe 60a and the refrigerant passage area S2 around the branch pipe 60a is changed, the refrigerant fraction can be adjusted, thereby increasing the heat exchange capability. have. On the other hand, the same applies to the branch pipes 60b to 60g communicating with the distribution passages 22b to 22g.

[16th embodiment]

The overall configuration of the distributor 203 in the sixteenth embodiment is the same as in FIG. 22 or 28. The distributor 203 also distributes a refrigerant as an example of a fluid passing through the interior. The distributor 203 includes a cylindrical outer tube 10, an inner tube 20 provided in the outer tube 10, and an orifice plate 40 disposed at an end of the inner tube 20 on the upstream side of the coolant. Here, the outer appearance 10 is made into a cylindrical shape, but it may be a cylindrical shape, and in that sense, the outer appearance 10 is an example of a cylindrical main tube. Further, the distributor 203 is provided with a plurality of branch pipes 60 fixed to the downstream side of the refrigerant and connected to a refrigerant pipe of a heat exchanger (not shown).

Further, the inner tube 20 is provided with a plurality of partition plates 21, thereby forming a plurality of distribution passages 22. Here, the inner tube 20 is an example of a member including a plurality of partitions.

29 is a partially enlarged view of a distributor 203 in the sixteenth embodiment. Meanwhile, here, the distributor 203 having the configuration of FIG. 28 is taken as an example. In the sixteenth embodiment, the distributor 203 is manufactured by a manufacturing method of joining the outer tube 10 and the inner tube 20 by expanding the shaft pipe of the outer tube 10 or the inner tube 20.

As described above, in the sixteenth embodiment, the outer tube 10 and the inner tube 20 prepared separately are joined by the shaft tube of the outer tube 10 or the inner tube 20 by expanding the tube. Accordingly, in the distributor 203 having the configuration of Fig. 22, it has become possible to arbitrarily change the number of partitions 21 according to the capability required by the heat exchanger. In addition, in the distributor 203 having the configuration of Fig. 28, in addition to this, it has become possible to arbitrarily change the value of the twist angle θ shown in Fig. 29 according to the capability required by the heat exchanger.

[Seventeenth Embodiment]

The overall configuration of the distributor 204 in the seventeenth embodiment is the same as in FIG. 22 or 28. The distributor 204 also distributes a refrigerant as an example of a fluid passing through the interior. In addition, the distributor 204 includes a cylindrical outer tube 10, an inner tube 20 provided in the outer tube 10, and an orifice plate 40 disposed at an end of the inner tube 20 on the upstream side of the coolant. Here, the outer appearance 10 is made into a cylindrical shape, but it may be a cylindrical shape, and in that sense, the outer appearance 10 is an example of a cylindrical main tube. Further, the distributor 204 is provided with a plurality of branch pipes 60 fixed to the downstream side of the refrigerant and connected to a refrigerant pipe of a heat exchanger (not shown).

Further, the inner tube 20 is provided with a plurality of partition plates 21, thereby forming a plurality of distribution passages 22.

Fig. 30 is a partially enlarged view of the distributor 204 in the seventeenth embodiment. Meanwhile, here, the distributor 204 having the configuration of FIG. 28 is taken as an example. As shown, in the distributor 204, a crushed rib 24 is formed at the distal end of the partition plate 21 of the inner tube 20 to be crushed and deformed by contact with the outer tube 10.

In this way, in the seventeenth embodiment, the crushed ribs 24 are formed at the distal end of the partition plate 21 of the inner tube 20. Accordingly, it is possible to adjust the flow of the refrigerant while preventing leakage of the refrigerant, thereby increasing the heat exchange capability.

[The eighteenth embodiment]

Fig. 31 is a diagram showing the overall configuration of a heat exchanger unit including a distributor 205 and a heat exchanger 8 in the eighteenth embodiment.

The overall configuration of the distributor 205 included in the heat exchanger unit in the eighteenth embodiment is the same as in FIG. 22 or 28. The distributor 205 also distributes a refrigerant as an example of a fluid passing through the interior. Further, the distributor 205 includes a cylindrical outer tube 10, an inner tube 20 provided in the outer tube 10, and an orifice plate 40 disposed at an end of the inner tube 20 on the upstream side of the coolant. Here, the outer appearance 10 is made into a cylindrical shape, but it may be a cylindrical shape, and in that sense, the outer appearance 10 is an example of a cylindrical main tube. Further, the distributor 205 includes a plurality of branch pipes 60 fixed to the downstream side of the refrigerant and connected to the refrigerant pipe 82 of a heat exchanger to be described later.

Further, the inner tube 20 is provided with a plurality of partition plates 21, thereby forming a plurality of distribution passages 22.

On the other hand, the heat exchanger 8 included in the heat exchanger unit in the eighteenth embodiment performs heat exchange between a refrigerant as an example of a fluid distributed by the distributor 205 and air. And, a plurality of refrigerant pipes 82 as an example of a plurality of fins 81 arranged side by side at predetermined intervals in the vertical direction, and a plurality of fluid pipes installed in parallel so as to be inserted into the insertion holes of each of the pins 81, A header 83 for joining the refrigerant flowing through the plurality of refrigerant pipes 82 and an external connection pipe 84 for flowing the refrigerant out of the heat exchanger 8 from the header 83 are provided.

Then, the plurality of branch pipes 60 of the distributor 205 are connected to the plurality of refrigerant pipes 82 of the heat exchanger 8, respectively.

At that time, in the eighteenth embodiment, as shown in FIG. 31, the plurality of branch pipes 60 of the distributor 205 are not necessarily connected one-to-one with the plurality of refrigerant pipes 82 of the heat exchanger 8. At least one branch pipe 60 of the plurality of branch pipes 60 has a Y branch 64 on the downstream side, and two branch pipes 65 in front of the Y branch 64 are a heat exchanger (8). It is connected to the two refrigerant pipes 82 and one to one.

Hereinafter, it demonstrates using a specific example.

FIG. 31 shows that the flow rate of the refrigerant to the refrigerant pipe 82 in the upper region R1 of the heat exchanger 8 is increased due to the distribution of wind speed in the heat exchanger 8, and the lower region of the heat exchanger 8 This is an example in which it is necessary to reduce the flow rate of the refrigerant to the refrigerant pipe 82 in (R2).

When connecting the branch pipe 60 to the refrigerant pipe 82 in the region R1 on a one-to-one basis, in order to increase the refrigerant flow rate to the refrigerant pipe 82 in the region R1, the branch pipe 60 You may connect to the distributor 205 so that the silver insertion length L becomes small. As described with reference to the graph of Fig. 26, this is also preferable from the viewpoint that when the insertion length L is decreased, the change in the classification ratio to the deviation of the insertion length L becomes small.

On the other hand, when the branch pipe 60 is connected to the refrigerant pipe 82 in the region R2 on a one-to-one basis, in order to reduce the flow rate of the refrigerant to the refrigerant pipe 82 in the region R2, the branch pipe 60 may be connected to the distributor 205 so as to increase the insertion length L. However, as described with reference to the graph of FIG. 26, when the insertion length L is increased, the change in the classification ratio with respect to the deviation of the insertion length L increases. In this respect, the branch pipe 60 is the insertion length ( It is preferable to connect to the distributor 205 so that L) becomes small. Therefore, in the eighteenth embodiment, one branch pipe 60 is not connected to one refrigerant pipe 82, but one branch pipe 60 is connected to the two refrigerant pipes 82, and the branch pipe ( 60) is connected to the distributor 205 so that the insertion length L becomes small. Accordingly, a large amount of refrigerant once flows into the branch pipe 60, but after that, a small amount of refrigerant flows into each branch pipe 65 by the Y branch 64.

On the other hand, in Fig. 31, a configuration in which the Y branch 64 is provided only in the branch pipe 60 connected to the refrigerant pipe 82 in the lower region of the heat exchanger 8 is adopted, but is not limited thereto. For example, the branch pipe 60 connected to the refrigerant pipe 82 in the upper region of the heat exchanger 8 and the branch pipe 82 connected to the refrigerant pipe 82 in the lower region of the heat exchanger 8 The Y branch 64 is installed in the branch pipe 60, and the Y branch 64 is not provided in the branch pipe 60 connected to the refrigerant pipe 82 in the central region of the heat exchanger 8. It is okay to employ it. Alternatively, a configuration in which the Y branch 64 is provided in the branch pipe 60 connected to the refrigerant pipe 82 in the entire region of the heat exchanger 8 may be adopted.

Further, in the eighteenth embodiment, the Y branch 64 to the two branch pipes 65 is provided on the downstream side of the branch pipe 60 of the distributor 205, but the present invention is not limited thereto. Branches to three or more branch pipes 65 may be provided on the downstream side of the branch pipe 60 of the distributor 205.

As described above, in the eighteenth embodiment, branches to the plurality of branch pipes 65 are provided on the downstream side of at least one branch pipe 60 of the plurality of branch pipes 60, and the plurality of branch pipes 65 The plurality of refrigerant pipes 82 of the heat exchanger 8 were connected in a one-to-one manner. Accordingly, the flow of the refrigerant into the refrigerant pipe 82 of the heat exchanger 8 can be stably adjusted, and the heat exchange capability can be increased.

[19th embodiment]

Fig. 32 is a diagram showing an overall configuration of a distributor 301 in the 19th embodiment. The distributor 301 distributes a refrigerant as an example of a fluid passing through the inside. And, as shown, the distributor 301 includes a cylindrical outer 10, an inner tube 20 installed in the outer tube 10, and an orifice plate 40 installed at an end of the inner tube 20 on the upstream side of the refrigerant. Equipped. Here, the outer appearance 10 was made into a cylindrical shape, but it may be a cylindrical shape, and in that sense, the outer appearance 10 is an example of the cylindrical appearance. The inner tube 20 was also made into a cylindrical shape, but the inside may not be a cavity, and in that sense, the inner tube 20 is an example of an inner shaft provided in the exterior. In addition, the distributor 301 has an inlet portion 30 for guiding, for example, a weld-coupled refrigerant to an end portion of the outer side 10 on the upstream side of the refrigerant, and an end portion opposite to the upstream side of the coolant of the outer side 10. For example, it has a cap portion 50 that is welded together. On the other hand, since the inlet portion 30 is provided outside the orifice plate 40, the orifice plate 40 is not visible from the outside, but the orifice plate 40 is shown here. In addition, the distributor 301 is provided with a plurality of branch pipes 60 fixed to the downstream side of the refrigerant and connected to the refrigerant pipe of a heat exchanger (not shown).

In addition, FIG. 32 also shows the internal structure of the exterior 10 by cutting out the front side of the exterior 10. As shown in FIG. As shown, a plurality of partition plates 21 are provided in the inner tube 20 or the outer tube 10, and thus, a plurality of distribution passages 22 are formed. In the nineteenth embodiment, the plurality of partition plates 21 are provided parallel to the central axis of the inner pipe 20. Fig. 32 is a state viewed from the front side. As the plurality of partition plates 21, only the partition plates 21a to 21c (and only the end portions on the side of the outer surface 10) are shown, and a plurality of distribution passages 22 As for, only the distribution passages 22a to 22d are shown. Here, the plurality of partition plates 21 are supposed to be installed parallel to the central axis of the inner tube 20, but if they are installed along the axis of the inner tube 20, that is, the axis of the outer tube 10, in that sense, a plurality of The partition plate 21 is an example of a plurality of partitions provided along the axis of the exterior. Alternatively, it is an example of a plurality of partitions that form a plurality of distribution passages between the exterior and the inner shaft.

In addition, although not shown in Fig. 32, the orifice plate 40 has a plurality of orifice holes for passing the refrigerant through the plurality of distribution passages 22, respectively.

In addition, the plurality of branch pipes 60 communicate with the plurality of distribution passages 22, respectively. Fig. 32 shows a plurality of branch pipes 60, in addition to the branch pipes 60a to 60d communicating with the distribution passages 22a to 22d, respectively, and since they are located on the opposite side of the inner pipe 20, the distribution passages 22e to not shown in FIG. The branch pipes 60e to 60g each communicating with 22g) are also shown.

Here, in this configuration, the first branch pipe and the second branch pipe adjacent to each other of the plurality of branch pipes are, respectively, of the plurality of distribution passages, a first distribution passage and a second distribution passage in which only one of the plurality of partitions is inserted. It can be understood as an example of a configuration connected to a passage. In this case, if the branch pipes 60a and 60b are examples of the first branch pipe and the second branch pipe, respectively, the distribution passages 22a and 22b become examples of the first distribution passage and the second distribution passage, respectively, and the partition The plate 21a becomes an example of a plurality of partitions.

Further, in the above configuration, the first branch pipe and the second branch pipe do not need to be adjacent branch pipes, and the first distribution passage and the second distribution passage may sandwich at least one of the plurality of partitions. Do. In this case, if the branch pipes 60a and 60c are examples of the first branch pipe and the second branch pipe, respectively, the distribution passages 22a and 22c are examples of the first distribution passage and the second distribution passage, respectively, and the partition The plates 21a and 2lb are at least one example of a plurality of partitions.

Moreover, as shown, in the 19th embodiment, the branch pipe 60a extends directly to the right side from the distribution passage 22a. The branch pipes 60b to 60d face one end forward from the distribution passages 22b to 22d, which are bent and extend to the right. The branch pipes 60e to 60g are once directed toward the opposite side from the distribution passages 22e to 22g, which are bent and extend to the right.

In addition, as for the branch pipes 60a to 60g, only one set may be provided. In the 19th embodiment, not only one set but also a plurality of sets are provided in parallel as shown. Here, the latter configuration can be regarded as an example of a configuration in which a plurality of branch pipes includes at least two branch pipes connected to one of the plurality of distribution passages.

33A and 33B are diagrams showing a first example of the distributor 301 in FIG. 32. FIG. 33A shows a first example of a perspective view of an end portion of the distributor 301 on the upstream side of the refrigerant in FIG. 32, and FIG. 33B shows a first example of the B-B cross-sectional view of the distributor 301 in FIG. 32. This corresponds to a cross-sectional view taken at the position of the broken line shown on the surface of the outer surface 10 in Fig. 33A. As shown, the partition plates 21a to 21g are provided integrally with the inner tube 20, thereby forming distribution passages 22a to 22g. Here, since the partition plate 21 couples the outer side of the inner tube 20 and the center of the inner tube 20, the width between the partition plates 21 in the distribution passage 22 is the outer side of the inner tube 20 It is getting smaller as it goes to the center. Further, the partition plates 21a to 21g are bonded to the outer surface 10 through a heterogeneous substance 25a to 25g. Here, the heterogeneous substances 25a to 25g may be, for example, adhesives, but are not limited thereto. Any material that is made of a material different from the material of the outer tube 10 and the inner tube 20, that is, a material different from the material of the outer tube 10 and the inner tube 20 may be used. In addition, in the nineteenth embodiment, the outer surface 10 is recessed at a position corresponding to the broken line distribution passages 22a to 22g at the upstream end of the coolant. Accordingly, the outer surface of the outer surface 10 becomes recesses 11a to 11g as an example of the concave portions, and projections as an example of the convex portions are formed in the distribution passages 22a to 22g. Here, the position corresponding to the distribution passages 22a to 22g on the broken line at the end portion on the upstream side of the outer surface 10 is an example of the first position at the open end, and the most upstream side from the inlet of the distribution passage 22 Any one position up to the branch pipe (60) is fine.

34A and 34B are diagrams showing a second example of the distributor 301 in FIG. 32. Fig. 34A shows a second example of a perspective view of the upstream end of the refrigerant of the distributor 301 in Fig. 32, and Fig. 34B shows a second example of a cross-sectional view taken along B-B of the distributor 301 in Fig. 32. This corresponds to a cross-sectional view when cut at the position of the broken line shown on the surface of the outer surface 10 in Fig. 34A. As shown, the partition plates 21a to 21g are provided integrally with the outer surface 10, thereby forming distribution passages 22a to 22g. Here, since the partition plate 21 couples the outer circumferential portion of the outer circumference 10 and the inner side of the outer circumference 10, the width between the partition plates 21 in the distribution passage 22 is the outer circumferential portion of the outer circumference 10 It is getting smaller from the inside to the inside. Further, the partition plates 21a to 21g are bonded to the inner tube 20 through a heterogeneous substance 25a to 25g. Here, the heterogeneous substances 25a to 25g may be, for example, adhesives, but are not limited thereto. Any material that is made of a material different from the material of the outer tube 10 and the inner tube 20, that is, a material different from the material of the outer tube 10 and the inner tube 20 may be used. In addition, in the nineteenth embodiment, the outer surface 10 is recessed at a position corresponding to the distribution passages 22a to 22g on the broken line at the end of the upstream side of the refrigerant. Accordingly, the outer surface of the outer surface 10 becomes recesses 11a to 11g as an example of the concave portions, and projections as an example of the convex portions are formed in the distribution passages 22a to 22g. Here, the position corresponding to the distribution passages 22a to 22g on the broken line at the end portion on the upstream side of the outer surface 10 is an example of the first position at the open end, and the most upstream side from the inlet of the distribution passage 22 Any one position up to the branch pipe (60) is fine.

As described above, in the 19th embodiment, the partition plates 21a to 21g and the inner tube (21a to 21g) and the inner tube (21a to 21g) and the inner tube (21a to 21g) and the inner tube ( Between 20), a heterogeneous substance (25a-25g) was interposed. Accordingly, leakage of the refrigerant between the outer tube 10 and the partition plates 21a to 21g or between the inner tube 20 and the partition plates 21a to 21g is prevented, and the refrigerant flow rate for each distribution passage 22 Can be adjusted.

In addition, in the 19th embodiment, the outer surface 10 is recessed to form a projection in the distribution passage 22. Accordingly, the area of the distribution passage 22 is locally changed, and the refrigerant flow rate is adjusted for each distribution passage 22, so that the heat exchange capability can be increased.

[20th embodiment]

Fig. 35 is a diagram showing the overall configuration of a distributor 302 in the twentieth embodiment. The distributor 302 also distributes a refrigerant as an example of a fluid passing through the interior. And, as shown, the distributor 302 includes a cylindrical outer 10, an inner tube 20 installed in the outer tube 10, and an orifice plate 40 installed at an end of the inner tube 20 on the upstream side of the refrigerant. Equipped. Here, the outer appearance 10 was made into a cylindrical shape, but it may be a cylindrical shape, and in that sense, the outer appearance 10 is an example of the cylindrical appearance. The inner tube 20 was also made into a cylindrical shape, but the inside may not be a cavity, and in that sense, the inner tube 20 is an example of an inner shaft provided in the exterior. In addition, the distributor 302 has an inlet portion 30 for guiding, for example, a weld-coupled refrigerant to an end portion of the outer side 10 on the upstream side of the refrigerant, and an end portion on the opposite side of the outer side 10 from the upstream side of the coolant. For example, it has a cap portion 50 that is welded together. On the other hand, since the inlet portion 30 is provided outside the orifice plate 40, the orifice plate 40 is not visible from the outside, but the orifice plate 40 is shown here. In addition, the distributor 302 has a plurality of branch pipes 60 fixed to the downstream side of the refrigerant and connected to the refrigerant pipe of a heat exchanger (not shown).

Moreover, FIG. 35 also shows the internal structure of the exterior 10 by cutting out the front side of the exterior 10. As shown in FIG. As shown, a plurality of partition plates 21 are provided in the inner tube 20 or the outer tube 10, and thus, a plurality of distribution passages 22 are formed. In the twentieth embodiment, the plurality of partition plates 21 are formed by providing a constant twist angle with respect to the central axis of the inner tube 20. Fig. 35 shows a plurality of partition plates 21, which are partition plates 21a to 21g (only the end portions on the outer surface 10 side only), and as the plurality of distribution passages 22, distribution passages 22a to 22g ). Here, it is assumed that the plurality of partition plates 21 are formed by providing a constant twist angle with respect to the central axis of the inner tube 20, but it can be said that this is also installed along the axis of the inner tube 20, that is, the axis of the outer tube 10. In that sense, the plurality of partition plates 21 is an example of a plurality of partitions provided along the axis of the exterior. Alternatively, it is an example of a plurality of partitions that form a plurality of distribution passages between the exterior and the inner shaft.

In addition, although not shown in FIG. 35, the orifice plate 40 has a plurality of orifice holes for passing the refrigerant through the plurality of distribution passages 22, respectively.

In addition, the plurality of branch pipes 60 communicate with the plurality of distribution passages 22, respectively. Fig. 35 shows a plurality of branch pipes 60, and each of the branch pipes 60a to 60g communicated with the distribution passages 22a to 22g.

Here, in this configuration, the first branch pipe and the second branch pipe adjacent to each other of the plurality of branch pipes are, respectively, of the plurality of distribution passages, a first distribution passage and a second distribution passage in which only one of the plurality of partitions is inserted. It can be understood as an example of a configuration connected to a passage. In this case, if the branch pipes 60a and 60b are examples of the first branch pipe and the second branch pipe, respectively, the distribution passages 22a and 22b become examples of the first distribution passage and the second distribution passage, respectively, and the partition The plate 21a becomes an example of a plurality of partitions.

Further, in the above configuration, the first branch pipe and the second branch pipe do not need to be adjacent branch pipes, and the first distribution passage and the second distribution passage may sandwich at least one of the plurality of partitions. Do. In this case, if the branch pipes 60a and 60c are examples of the first branch pipe and the second branch pipe, respectively, the distribution passages 22a and 22c are examples of the first distribution passage and the second distribution passage, respectively, and the partition The plates 21a and 2lb are at least one example of a plurality of partitions.

In addition, as shown, in the twentieth embodiment, since the distribution passages 22a to 22g are formed by providing a constant twist angle with respect to the central axis of the inner tube 20, all the peripheries of the inner tube 20 It rotates 1 and passes through the right side of the inner tube 20. Accordingly, the branch pipes 60a to 60g can be directly extended to the right by communicating with the portions passing through the right side of the inner pipe 20 in the distribution passages 22a to 22g, respectively. Here, it can be understood that such a configuration is an example of a configuration in which a plurality of partitions are provided so as to achieve a constant twist angle with respect to the axis of the exterior.

Further, as for the branch pipes 60a to 60g, only one set may be provided, but in the twentieth embodiment, not only one set but also a plurality of sets are provided in parallel as shown. Here, the latter configuration can be regarded as an example of a configuration in which a plurality of branch pipes includes at least two branch pipes connected to one of the plurality of distribution passages.

A perspective view of an end portion of the distributor 302 on the upstream side of the refrigerant in FIG. 35 is the same as in FIG. 33A or 34A. In addition, a cross-sectional view taken along a line B-B of the distributor 302 in FIG. 35 is the same as that in FIG. 33B or 34B.

[Twenty-first embodiment]

The overall configuration of the distributor 303 in the twenty-first embodiment is the same as in FIG. 32 or 35. The distributor 303 also distributes a refrigerant as an example of a fluid passing through the interior. Further, the distributor 303 includes a cylindrical outer tube 10, an inner tube 20 provided in the outer tube 10, and an orifice plate 40 disposed at an end of the inner tube 20 on the upstream side of the coolant. Here, the outer appearance 10 was made into a cylindrical shape, but it may be a cylindrical shape, and in that sense, the outer appearance 10 is an example of the cylindrical appearance. The inner tube 20 was also made into a cylindrical shape, but the inside may not be a cavity, and in that sense, the inner tube 20 is an example of an inner shaft provided in the exterior. Further, the distributor 303 is provided with a plurality of branch pipes 60 fixed to the downstream side of the refrigerant and connected to a refrigerant pipe of a heat exchanger (not shown).

In addition, a plurality of partition plates 21 are provided in the inner tube 20 or the outer tube 10, thereby forming a plurality of distribution passages 22.

36A and 36B are cross-sectional views of a distributor 303 in the twenty-first embodiment. However, these are cross-sectional views when a plurality of partition plates 21 are provided in the inner tube 20.

36A is a B-B cross-sectional view of a distributor 303 according to the 21st embodiment. As shown, the partition plates 21a to 21g are provided integrally with the inner tube 20, thereby forming distribution passages 22a to 22g. Here, since the partition plate 21 couples the outer side of the inner tube 20 and the center of the inner tube 20, the width between the partition plates 21 in the distribution passage 22 is the outer side of the inner tube 20 It is getting smaller toward the center from. Further, the partition plates 21a to 21g are bonded to the outer surface 10 through different substances 25a to 25g. Here, the heterogeneous substances 25a to 25g may be, for example, adhesives, but are not limited thereto. Any material that is made of a material different from the material of the outer tube 10 and the inner tube 20, that is, a material different from the material of the outer tube 10 and the inner tube 20 may be used. In addition, in the twenty-first embodiment, the outer surface 10 is recessed at a position corresponding to the distribution passages 22a to 22g on the broken line at the end of the upstream side of the refrigerant. Accordingly, the outer surface of the outer surface 10 becomes recesses 11a to 11g as an example of the concave portions, and projections as an example of the convex portions are formed in the distribution passages 22a to 22g. Here, the position of B-B is an example of the first position of the open end of the outer appearance, and any one position from the inlet of the distribution passage 22 to the branch pipe 60 on the most upstream side of the refrigerant may be used.

36B is a C-C cross-sectional view of the distributor 303 in the 21st embodiment. As shown, the orifice plate 43 is provided at the CC position of the distributor 303, and the orifice plate 43 has a plurality of orifice holes 431 for flowing refrigerant into the plurality of distribution passages 22, respectively. Have. 36B shows a plurality of orifice holes 431, respectively, showing orifice holes 431a to 431g for flowing refrigerant through distribution passages 22a to 22g, respectively. Here, the orifice holes 431a to 431g are examples of a plurality of orifice holes respectively corresponding to a plurality of distribution passages. In addition, the CC position is an example of a second position of a portion other than the end of the outer surface, and the branch pipe 60 on the most downstream side of the branch pipe 60 included in an arbitrary set, and the branch pipe 60 on the downstream side of the set. Any one position between the branch pipes 60 on the most upstream side of the refrigerant of the branch pipes 60 included in the set may be used. Further, a plurality of such positions may be selected, and the orifice plate 43 may be provided at each position or recess processing may be performed.

On the other hand, as for the distributor 303 in the 21st embodiment, the orifice plate 43 of FIG. 36B is provided at the B-B position, and the recess processing of Fig. 36A is performed at the C-C position. In this case as well, the B-B position is an example of the first position at the open end of the outer appearance, and any position from the inlet of the distribution passage 22 to the branch pipe 60 on the most upstream side of the refrigerant may be used. In addition, the CC position is an example of the second position of a portion other than the end of the outer surface, and the branch pipe 60 on the most downstream side of the branch pipe 60 included in an arbitrary set, and the branch pipe 60 adjacent to the set on the downstream side. Any one position between the branch pipes 60 on the most upstream side of the refrigerant of the branch pipes 60 included in the set may be used. Further, a plurality of such positions may be selected, and the orifice plate 43 may be provided at each position or recess processing may be performed.

In addition, in the 21st embodiment as well, the plurality of partition plates 21 may be provided integrally with the exterior 10. In this case, the cross-sectional view of the position where the distributor 303 was recessed in the twenty-first embodiment is the same as that in Fig. 34B.

As described above, in the twenty-first embodiment, recess processing is performed on the end portion of the outer surface 10 on the upstream side of the coolant, and the orifice plate 40 is provided in the distribution passage 22 on the downstream side of the coolant. Alternatively, an orifice plate 40 is provided at the upstream end of the refrigerant in the distribution passage 22, and recess processing is performed on the outer surface 10 on the downstream side of the refrigerant rather than this. Accordingly, it is possible to increase the heat exchange capacity by adjusting the refrigerant flow rate in the middle of the distribution passage 22.

[22nd embodiment]

37 is a diagram showing the overall configuration of a distributor 304 in the 22nd embodiment. The distributor 304 also distributes a refrigerant as an example of a fluid passing through the interior. And, as shown, the distributor 304 includes a cylindrical outer 10, an inner tube 20 installed in the outer tube 10, and an orifice plate 40 installed at an end of the inner tube 20 on the upstream side of the refrigerant. Equipped. Here, the outer appearance 10 was made into a cylindrical shape, but it may be a cylindrical shape, and in that sense, the outer appearance 10 is an example of the cylindrical appearance. The inner tube 20 was also made into a cylindrical shape, but the inside may not be a cavity, and in that sense, the inner tube 20 is an example of an inner shaft provided in the exterior. In addition, the distributor 304 has an inlet portion 30 for guiding, for example, a weld-coupled refrigerant to an end portion of the outer side 10 on the upstream side of the refrigerant, and an end portion of the outer side 10 opposite to the upstream side of the refrigerant. For example, it has a cap portion 50 that is welded together. On the other hand, since the inlet portion 30 is provided outside the orifice plate 40, the orifice plate 40 is not visible from the outside, but the orifice plate 40 is shown here. In addition, the distributor 304 has a plurality of branch pipes 60 fixed to the downstream side of the refrigerant and connected to the refrigerant pipe of a heat exchanger (not shown).

In addition, FIG. 37 also shows the internal structure of the inner tube 20 by cutting out the front side of the outer tube 10. As shown, a plurality of partition plates 21 are provided in the inner tube 20 or the outer tube 10, and thus, a plurality of distribution passages 22 are formed. In the 22nd embodiment, the plurality of partition plates 21 are formed by providing a small twist angle in the range R5 on the upstream side of the coolant with respect to the central axis of the inner tube 20, and the range on the downstream side of the coolant ( In R6), it is formed by providing a large twist angle. Fig. 37 is a plurality of partition plates 21, showing partition plates 21a to 21g (only an end on the outer surface 10 side), and as a plurality of distribution passages 22, distribution passages 22a to 22g ). Here, the plurality of partition plates 21 are formed by providing a twist angle with respect to the central axis of the outer tube 10, but it can be said that this is also installed along the axis of the inner tube 20, that is, the axis of the outer tube 10. , In that sense, the plurality of partition plates 21 is an example of a plurality of partitions provided along the axis of the exterior. Alternatively, it is an example of a plurality of partitions that form a plurality of distribution passages between the exterior and the inner shaft.

Moreover, although not shown in FIG. 37, the orifice plate 40 has a plurality of orifice holes for flowing refrigerant through the plurality of distribution passages 22, respectively.

In addition, the plurality of branch pipes 60 communicate with the plurality of distribution passages 22, respectively. Fig. 37 shows a plurality of branch pipes 60, and each of the branch pipes 60a to 60g communicated with the distribution passages 22a to 22g.

Here, in this configuration, the first branch pipe and the second branch pipe adjacent to each other of the plurality of branch pipes are, respectively, of the plurality of distribution passages, a first distribution passage and a second distribution passage in which only one of the plurality of partitions is inserted. It can be understood as an example of a configuration connected to a passage. In this case, if the branch pipes 60a and 60b are examples of the first branch pipe and the second branch pipe, respectively, the distribution passages 22a and 22b become examples of the first distribution passage and the second distribution passage, respectively, and the partition The plate 21a becomes an example of a plurality of partitions.

Further, in the above configuration, the first branch pipe and the second branch pipe do not need to be adjacent branch pipes, and the first distribution passage and the second distribution passage may sandwich at least one of the plurality of partitions. Do. In this case, if the branch pipes 60a and 60c are examples of the first branch pipe and the second branch pipe, respectively, the distribution passages 22a and 22c are examples of the first distribution passage and the second distribution passage, respectively, and the partition The plates 21a and 2lb are at least one example of a plurality of partitions.

In addition, as shown, in the 22nd embodiment, since the distribution passages 22a to 22g are formed by providing a twist angle with respect to the central axis of the inner tube 20, all of the peripheries of the inner tube 20 are 1 It rotates and passes through the right side of the inner tube 20. Accordingly, the branch pipes 60a to 60g can be directly extended to the right by communicating with the portions passing through the right side of the inner pipe 20 in the distribution passages 22a to 22g, respectively. Here, such a configuration can be regarded as an example of a configuration in which a plurality of partition portions are provided so as to form a twist angle with respect to the axis of the exterior.

Further, as for the branch pipes 60a to 60g, only one set may be provided, but in the 22nd embodiment, not only one set but also a plurality of sets are provided in parallel as shown. Here, the latter configuration can be regarded as an example of a configuration in which a plurality of branch pipes includes at least two branch pipes connected to one of the plurality of distribution passages.

38A and 38B are partially enlarged views of the distributor 304 in the 22nd embodiment.

38A shows an enlarged view of a part of the range R5 in FIG. 37. In this enlarged view, the partition plate 21 is formed so as to achieve a twist angle θ1 with respect to the inner tube 20. In addition, FIG. 38B shows an enlarged view of a part of the range R6 in FIG. 37. In this enlarged view, the partition plate 21 is formed to achieve a twist angle θ2 (θ1<θ2) with respect to the inner tube 20.

On the other hand, in the above, the twist angle in the range R5 of Fig. 37 is set to θ1, and the twist angle in the range R6 of Fig. 37 is set to θ2 (θ1 <θ2), but is not limited thereto.

For example, when a large amount of refrigerant is to be introduced into the branch pipe 60 on the upstream side of the refrigerant, the twist angle θ1 in the range R5 of FIG. 37 and the range R6 of FIG. 37 The torsion angle θ2 of may satisfy the condition of θ1>θ2. That is, the twist angle θ1 and the twist angle θ2 may be different. Here, assuming that the range R5 is the first range in the axial direction of the exterior, the twist angle θ1 is an example of the first twist angle, and if the range R6 is the second range in the axial direction of the exterior, the twist angle ( θ2) is an example of the second twist angle.

Also in the 22nd embodiment, when the partition plates 21a to 21g are provided integrally with the inner tube 20, they may be bonded to the outer surface 10 via different materials 25a to 25g. Alternatively, when installed integrally with the exterior 10, it may be bonded to the inner tube 20 through a heterogeneous material (25a-25g).

As described above, in the 22nd embodiment, the angle of twisting of the partition plate 21 with respect to the inner tube 20 is made to be different between the upstream side of the coolant and the downstream side of the coolant. Accordingly, by changing the pressure loss of the refrigerant in the distribution passage 22, the flow rate of the refrigerant can be adjusted, thereby increasing the heat exchange capability.

[23rd embodiment]

The overall configuration of the distributor 305 in the 23rd embodiment is the same as that in FIG. 32 or 35. The distributor 305 also distributes a refrigerant as an example of a fluid passing through the interior. Further, the distributor 305 includes a cylindrical outer tube 10, an inner tube 20 provided in the outer tube 10, and an orifice plate 40 disposed at an end of the inner tube 20 on the upstream side of the coolant. Here, the outer appearance 10 was made into a cylindrical shape, but it may be a cylindrical shape, and in that sense, the outer appearance 10 is an example of the cylindrical appearance. The inner tube 20 was also made into a cylindrical shape, but the inside may not be a cavity, and in that sense, the inner tube 20 is an example of an inner shaft provided in the exterior. Further, the distributor 305 includes a plurality of branch pipes 60 fixed to the downstream side of the refrigerant and connected to a refrigerant pipe of a heat exchanger (not shown).

In addition, a plurality of partition plates 21 are provided in the inner tube 20 or the outer tube 10, thereby forming a plurality of distribution passages 22.

39A and 39B are cross-sectional views of a distributor 305 in the 23rd embodiment. However, these are cross-sectional views when a plurality of partition plates 21 are provided in the inner tube 20. Fig. 39A shows a B-B cross-sectional view of a distributor 305 according to the 23rd embodiment, and Fig. 39B shows a C-C cross-sectional view of a distributor 305 according to the 23rd embodiment. As shown, the partition plates 21a to 21g are provided integrally with the inner tube 20, thereby forming distribution passages 22a to 22g. Here, since the partition plate 21 couples the outer side of the inner tube 20 and the center of the inner tube 20, the width between the partition plates 21 in the distribution passage 22 is the outer side of the inner tube 20 It is getting smaller toward the center from. Further, the partition plates 21a to 21g are bonded to the outer surface 10 through different substances 25a to 25g. Here, the heterogeneous substances 25a to 25g may be, for example, adhesives, but are not limited thereto. Any material made of a material different from the material of the outer tube 10 and the inner tube 20 may be used. In Fig. 39A, the surfaces of the partition plates 21a to 21g are not ribbed and no ribs are formed, whereas in Fig. 39B, the surfaces of the partition plates 21a to 21g are ribbed, and 26a-26g) is formed.

On the other hand, in the above, the ribs are not formed in the partition plates 21a to 21g at the position BB in Fig. 32 or 35, but the ribs ( 26a-26g) was formed, but it is not limited to this.

For example, without forming ribs in the partition plates 21a to 21g at all positions within the range R3 of Fig. 32 or 35, all positions within the range R4 of Fig. 32 or 35 Ribs 26a to 26g may be formed on the partition plates 21a to 21g. Here, the range R3 is an example of the first range, and the range R4 is an example of the second range.

Alternatively, when a large amount of refrigerant is to be introduced into the branch pipe 60 on the upstream side of the refrigerant, ribs 26a to 26g are formed in the partition plates 21a to 21g within the range R3 of Fig. 32 or 35, It is also possible not to form ribs in the partition plates 21a to 21g in the range R4 of FIG. 32 or 35.

Further, in the above, the partition plates 21a to 21g are provided integrally with the inner tube 20, but the present invention is not limited thereto. The partition plates 21a to 21g may be installed integrally with the exterior 10. In this case, the partition plates 21a to 21g may be joined to the inner tube 20 through a heterogeneous material 25a to 25g.

As described above, in the 23rd embodiment, the partition plates 21a to 21g have a portion in which ribs 26a to 26g are formed on the surface, and a portion in which the ribs are not formed on the surface. By forming the ribs 26a to 26g in the distribution passages 22a to 22g, gas-liquid mixing in the distribution passage 22 can be promoted. Accordingly, by uniformly distributing the gas-liquid refrigerant to the plurality of branch pipes 60, it is possible to increase heat exchange capacity.

[24th embodiment]

The overall configuration of the distributor 306 in the 24th embodiment is the same as that in FIG. 32 or 35. The distributor 306 also distributes a refrigerant as an example of a fluid passing through the interior. Further, the distributor 306 includes a cylindrical outer tube 10, an inner tube 20 provided in the outer tube 10, and an orifice plate 40 disposed at an end of the inner tube 20 on the upstream side of the coolant. Here, the outer appearance 10 was made into a cylindrical shape, but it may be a cylindrical shape, and in that sense, the outer appearance 10 is an example of the cylindrical appearance. The inner tube 20 was also made into a cylindrical shape, but the inside may not be a cavity, and in that sense, the inner tube 20 is an example of an inner shaft provided in the exterior. Further, the distributor 306 is provided with a plurality of branch pipes 60 fixed to the downstream side of the refrigerant and connected to a refrigerant pipe of a heat exchanger (not shown).

In addition, a plurality of partition plates 21 are provided in the inner tube 20 or the outer tube 10, thereby forming a plurality of distribution passages 22.

40A and 40B are cross-sectional views of a distributor 306 in the 24th embodiment. However, these are cross-sectional views when a plurality of partition plates 21 are provided in the inner tube 20. Fig. 40A is a B-B cross-sectional view of the distributor 306 in the 24th embodiment, and Fig. 40B is a C-C cross-sectional view of the distributor 306 in the 24th embodiment. As shown, the partition plates 21a to 21g are provided integrally with the inner tube 20, thereby forming distribution passages 22a to 22g. Here, since the partition plate 21 couples the outer side of the inner tube 20 and the center of the inner tube 20, the width between the partition plates 21 in the distribution passage 22 is the outer side of the inner tube 20 It is getting smaller toward the center from. Further, the partition plates 21a to 21g are bonded to the outer surface 10 through different substances 25a to 25g. Here, the heterogeneous substances 25a to 25g may be, for example, adhesives, but are not limited thereto. Any material that is made of a material different from the material of the outer tube 10 and the inner tube 20, that is, a material different from the material of the outer tube 10 and the inner tube 20 may be used. In Fig. 40A, the thickness of the partition plates 21a to 21g is t1, whereas in Fig. 40B, the thickness of the partition plates 21a to 21g is t2 (t1 <t2).

On the other hand, in the above, the thickness of the partition plates 21a to 21g at the position BB of FIG. 32 or 35 is t1, and the thickness of the partition plates 21a to 21g at the position CC of FIG. 32 or 35 Although the plate thickness was set to t2 (t1 <t2), it is not limited to this.

For example, the thickness of the partition plates 21a to 21g at all positions within the range R3 of Fig. 32 or 35 is set to t1, and at all positions within the range R4 of Fig. 32 or 35 The thickness of the partition plates 21a to 21g may be t2 (t1 <t2). In addition, a plurality of ranges respectively corresponding to a plurality of sets of branch pipes 60 are set, and the thickness of the partition plates 21a to 21g in each range may be gradually increased from the upstream side of the coolant to the downstream side of the coolant. It's okay. In addition, the thickness of the partition plates 21a to 21g may be continuously increased from the upstream side of the coolant to the downstream side of the coolant.

Alternatively, when a large amount of refrigerant is to be introduced into the branch pipe 60 on the upstream side of the refrigerant, the plate thickness t1 of the partition plates 21a to 21g at the position BB of Fig. 32 or 35, and Fig. 32 or The thickness t2 of the partition plates 21a to 21g at the CC position in Fig. 35 may satisfy the condition of t1>t2. That is, the plate thickness t1 and the plate thickness t2 may be different. Here, if the BB position is an example of the first position in the axial direction of the exterior, the plate thickness t1 is an example of the first thickness, and if the CC position is an example of the second position in the axial direction of the exterior, the plate thickness t2 ) Is an example of the second thickness. In addition, the same applies to this case in that the plate thickness of the partition plates 21a to 21g is changed stepwise between a plurality of plate thicknesses, and the point is continuously changed.

Further, in the above, the partition plates 21a to 21g are provided integrally with the inner tube 20, but the present invention is not limited thereto. The partition plates 21a to 21g may be installed integrally with the exterior 10. In this case, the partition plates 21a to 21g may be joined to the inner tube 20 through a heterogeneous material 25a to 25g.

As described above, in the 24th embodiment, the thickness of the partition plate 21 is made to be different between the upstream side of the coolant and the downstream side of the coolant. For example, the plate thickness of the partition plate 21 was made thinner on the upstream side of the coolant and thicker toward the downstream side of the coolant. The refrigerant flow rate decreases when it reaches the downstream side of the refrigerant in the distribution passage 22, but by reducing the cross-sectional area of the distribution passage 22, the gas-liquid refrigerant can be uniformly distributed to the branch pipe 60 on the downstream side of the refrigerant without lowering the flow velocity. Therefore, it became possible to increase the heat exchange capacity.

[25th embodiment]

The overall configuration of the distributor 307 in the 25th embodiment is the same as in FIG. 32 or 35. The distributor 307 also distributes a refrigerant as an example of a fluid passing through the interior. In addition, the distributor 307 includes a cylindrical outer tube 10, an inner tube 20 provided in the outer tube 10, and an orifice plate 40 disposed at an end of the inner tube 20 on the upstream side of the coolant. Here, the outer appearance 10 was made into a cylindrical shape, but it may be a cylindrical shape, and in that sense, the outer appearance 10 is an example of the cylindrical appearance. The inner tube 20 was also made into a cylindrical shape, but the inside may not be a cavity, and in that sense, the inner tube 20 is an example of an inner shaft provided in the exterior. Further, the distributor 307 is provided with a plurality of branch pipes 60 fixed to the downstream side of the refrigerant and connected to a refrigerant pipe of a heat exchanger (not shown).

In addition, a plurality of partition plates 21 are provided in the inner tube 20 or the outer tube 10, thereby forming a plurality of distribution passages 22.

41 is an A-A cross-sectional view of a distributor 307 in the 25th embodiment. However, this is a cross-sectional view when a plurality of partition plates 21 are provided in the inner tube 20. As shown, the partition plates 21a to 21g are provided integrally with the inner tube 20, thereby forming distribution passages 22a to 22g. Here, since the partition plate 21 couples the outer side of the inner tube 20 and the center of the inner tube 20, the width between the partition plates 21 in the distribution passage 22 is the outer side of the inner tube 20 It is getting smaller toward the center from. Further, the partition plates 21a to 21g are bonded to the outer surface 10 through different substances 25a to 25g. Here, the heterogeneous substances 25a to 25g may be, for example, adhesives, but are not limited thereto. Any material made of a material different from the material of the outer tube 10 and the inner tube 20 may be used. In FIG. 41, the branch pipe 60a fixed in communication with the distribution passage 22a is sandwiched between partition plates 21a and 21g forming the distribution passage 22a. Here, side holes 66a and 67a through which the refrigerant flows are formed in the branch pipe 60a. Further, in the 25th embodiment, the diameters of the side holes 66a and 67a are configured to be different between the plurality of branch pipes 60a (three branch pipes 60a in FIG. 32 or 35). On the other hand, Fig. 41 is an AA cross-sectional view of Fig. 32 or 35, and thus only the branch pipe 60a in communication with the distribution passage 22a is shown, but the branch pipes 60b to 60g in communication with the distribution passages 22b to 22g The same is true for

On the other hand, although the side holes 66a and 67a were formed in the branch pipe 60a in the above, it is not limited to this. For example, a front hole through which the refrigerant flows may be formed on the front surface of the branch pipe 60a in the fitting direction to the distribution passage 22a. This front hole is different from the hole of the axial flow portion 62a in the first embodiment or the second embodiment in that the branch tube 60a is formed without a shaft tube. Do. Here, the side holes 66a and 67a and this front hole are examples of holes formed on either side of a portion inserted into one distribution passage.

Further, in the above, the partition plates 21a to 21g are provided integrally with the inner tube 20, but the present invention is not limited thereto. The partition plates 21a to 21g may be installed integrally with the exterior 10. In this case, the partition plates 21a to 21g may be bonded to the inner tube 20 through different materials 25a to 25g.

As described above, in the 25th embodiment, a hole through which the refrigerant flows is formed on the surface of the portion inserted into the distribution passage 22 of the branch pipe 60, and the refrigerant upstream side and the refrigerant downstream side of the distribution passage 22 The diameters were made different. Accordingly, it is possible to adjust the refrigerant flow rate, thereby increasing the heat exchange capacity.

[26th embodiment]

42 is a diagram showing the overall configuration of a heat exchanger unit including a distributor 308 and a heat exchanger 8 in the 26th embodiment.

The overall configuration of the distributor 308 included in the heat exchanger unit in the twenty-sixth embodiment is the same as in FIG. 32 or 35. The distributor 308 also distributes a refrigerant as an example of a fluid passing through the interior. In addition, the distributor 308 includes a cylindrical outer tube 10 and an inner tube 20 provided in the outer tube 10. Here, the outer appearance 10 was made into a cylindrical shape, but it may be a cylindrical shape, and in that sense, the outer appearance 10 is an example of the cylindrical appearance. The inner tube 20 was also made into a cylindrical shape, but the inside may not be a cavity, and in that sense, the inner tube 20 is an example of an inner shaft provided in the exterior.

In addition, a plurality of partition plates 21 are provided in the inner tube 20 or the outer tube 10, thereby forming a plurality of distribution passages 22.

On the other hand, the heat exchanger 8 included in the heat exchanger unit in the twenty-sixth embodiment performs heat exchange between a refrigerant as an example of a fluid distributed by the distributor 308 and air. And, a plurality of refrigerant pipes 82 as an example of a plurality of fins 81 arranged side by side at predetermined intervals in the vertical direction, and a plurality of fluid pipes installed in parallel so as to be inserted into the insertion holes of each of the pins 81, A header 83 for joining the refrigerant flowing through the plurality of refrigerant pipes 82 and an external connection pipe 84 for flowing the refrigerant out of the heat exchanger 8 from the header 83 are provided.

Then, the plurality of branch pipes 60 of the distributor 308 are connected to the plurality of refrigerant pipes 82 of the heat exchanger 8, respectively.

As described above, in the twenty-sixth embodiment, in the state in which the plurality of partition plates 21 are integrated with the inner tube 20 or the outer tube 10, the flow resistance of the refrigerant in one distribution passage 22 is changed. Accordingly, it is possible to adjust the flow of the refrigerant while preventing leakage of the refrigerant, thereby increasing the heat exchange capability.

1-7, 101-106, 201-205, 301-308: distributor
8: heat exchanger
10: appearance
11: recess
12: exterior cover
13: Burring hole
20: Introspection
21: partition plate
22: distribution passage
23: step
24: crushed rib
25: heterogeneous substance
26: rib
30: inlet
40, 43: orifice plate
41: protruding orifice plate
42, 52: beeswax sheet
50: cap portion
51: protruding cap portion
60: Branch Hall
62: axial flow section
64: Y branch
65: branch pipe
66, 67: side hole
71: first distributor
72: second distributor

Claims (20)

A distributor for distributing the fluid passing through the inside; And
And a heat exchanger having a plurality of refrigerant pipes through which the fluid distributed by the distributor flows, and provided to exchange heat with air,
The distributor,
Subjectivity;
A partition part forming a plurality of distribution passages inside the main pipe;
A branch pipe 1a inserted into the main pipe by a first length so as to communicate with the first distribution passages of the plurality of distribution passages and connected to a portion of the heat exchanger; And
And a branch pipe 1b inserted into the main pipe by a second length different from the first length to communicate with the first distribution passage and connected to another portion of the heat exchanger,
The flow rate of air heat-exchanged in the one part of the heat exchanger is higher than the flow rate of air heat-exchanged in the other part of the heat exchanger,
The first length is provided to be shorter than the second length of the air conditioner. The method of claim 1,
The air conditioner is provided such that the size of the opening of the axial flow portion communicating with the first distribution passage of the branch pipe 1a is different from the size of the opening of the axial flow portion communicating with the first distribution passage of the branch pipe 1b. The method of claim 1,
The air conditioner is provided to extend along an inclined direction having a predetermined angle with respect to the axial direction of the main pipe. The method of claim 3,
When the partition part is coupled to the main pipe, the air conditioner is deformed and includes a crushed rib provided to be in close contact with the main pipe. The method of claim 3,
The partition part,
It extends along a direction inclined by a first angle with respect to the axial direction of the main pipe in an upstream portion along the flow direction of the refrigerant,
An air conditioner provided to extend along a direction inclined by a second angle greater than the first angle with respect to the axial direction of the main pipe at a downstream portion along the flow direction of the refrigerant. The method of claim 1,
An orifice plate provided at an upstream end according to a direction in which the refrigerant flows in the main pipe; further comprising,
The orifice plate includes a plurality of orifice holes for guiding the refrigerant to the plurality of distribution passages,
The plurality of orifice holes include a first orifice hole and a second orifice hole having a size different from that of the first orifice hole. The method of claim 1,
The distributor is an air conditioner provided to have a length shorter than the length of the heat exchanger. The method of claim 1,
An orifice plate provided at an upstream end according to a direction in which the refrigerant flows in the main pipe; further comprising,
The orifice plate includes a convex portion,
The air conditioner includes a concave portion formed at a position corresponding to the convex portion so that the partition portion is inserted into the convex portion. The method of claim 1,
An orifice plate provided at an upstream end according to a direction in which the refrigerant flows in the main pipe; further comprising,
The orifice plate includes a plurality of protrusions inserted into the plurality of distribution passages,
An air conditioner in which a beeswax material is provided between the main pipe and the orifice plate. The method of claim 1,
A cap portion coupled to an upstream side and an opposite side end according to a direction in which the refrigerant flows in the main pipe; further includes,
The cap portion includes a plurality of protrusions inserted into the plurality of distribution passages,
An air conditioner in which a beeswax material is provided between the main pipe and the cap part. The method of claim 1,
It further includes; an exterior cover coupled to the outer circumferential surface of the main tube,
The exterior cover includes a plurality of burring holes formed to insert at least one of the 1a branch pipe and the 1b branch pipe. The method of claim 1,
The air conditioner includes a step portion formed to support at least one of the 1a branch pipe and the 1b branch pipe. The method of claim 1,
An air conditioner in which heterogeneous materials are provided between the main pipe and the partition part. The method of claim 1,
The partition is an air conditioner provided such that the size or shape of a cross-section of one part on the upstream side according to the direction in which the refrigerant flows in the main pipe is different from the size or shape of the cross-section of one part on the downstream side according to the direction in which the refrigerant flows in the main pipe . The method of claim 1,
The air conditioner further comprises a branch pipe provided to connect the 1a branch pipe or the 1b branch pipe to at least two refrigerant pipes of the plurality of refrigerant pipes. Subjectivity;
A partition part forming a plurality of distribution passages inside the main pipe;
A branch pipe 1a inserted into the main pipe by a first length so as to communicate with the first distribution passages of the plurality of distribution passages and connectable to a portion of the heat exchanger; And
A branch pipe 1b inserted into the main pipe by a second length different from the first length so as to communicate with the first distribution passage and connected to another portion of the heat exchanger; And
And a second branch pipe coupled to the main pipe so as to communicate with the first distribution passage of the plurality of distribution passages and a second distribution passage partitioned from the plurality of distribution passages,
The flow rate of air heat-exchanged in the one part of the heat exchanger is higher than the flow rate of air heat-exchanged in the other part of the heat exchanger,
The first length is a distributor provided to be shorter than the second length. The method of claim 16,
The plurality of distribution passages include a first distribution passage and a second distribution passage having a different cross-sectional area than the first distribution passage. The method of claim 16,
At least one of the 1a branch pipe, the 1b branch pipe, and the second branch pipe includes an opening of an axial flow portion communicating with the main pipe and a side hole formed on a surface different from the opening. A distributor for distributing the fluid passing through the inside; And
And a heat exchanger having a plurality of refrigerant pipes through which the fluid distributed by the distributor flows, and provided to exchange heat with air,
The distributor,
Subjectivity;
A partition part forming a plurality of distribution passages inside the main pipe;
A branch pipe 1a inserted into the main pipe by a first length so as to communicate with the first distribution passages of the plurality of distribution passages and connected to a portion of the heat exchanger; And
And a branch pipe 1b inserted into the main pipe by a second length different from the first length to communicate with the first distribution passage and connected to another portion of the heat exchanger,
The flow rate of air heat-exchanged in the one part of the heat exchanger is higher than the flow rate of air heat-exchanged in the other part of the heat exchanger,
The first length is a heat exchanger unit provided to be shorter than the second length. The method of claim 19,
The distributor,
A first distributor connected to the heat exchanger;
A second distributor connected to the heat exchanger and provided separately from the first distributor; And
Heat exchanger unit comprising a; a pipe having a branch point to guide the fluid to the first distributor and the second distributor.

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