CN115615058A - Distributor and air conditioner - Google Patents

Abstract

The invention discloses a distributor and an air conditioner, wherein the distributor comprises a liquid inlet part and a flow dividing part, wherein the liquid inlet part is provided with a main flow channel, the flow dividing part is provided with a plurality of flow dividing channels, a distribution cavity is formed between the flow dividing part and the liquid inlet part, the distribution cavity is provided with a first end and a second end which are opposite, and the plurality of flow dividing channels penetrate through the second end and are communicated with the distribution cavity. The feed liquor portion is equipped with from first end towards the extension that the second end extends, the sprue extends to in the extension, the extension is equipped with all the intercommunication distribution chamber with a plurality of overflow holes of sprue, at least part the overflow hole orientation the perisporium setting of distribution chamber to interval distribution in the circumference of sprue. The technical scheme of the invention can improve the shunting uniformity.

Description

Distributor and air conditioner

Technical Field

The invention relates to the technical field of air conditioners, in particular to a distributor and an air conditioner.

Background

The present invention relates to a multi-flow path heat exchanger, and more particularly to a multi-flow path heat exchanger for an air conditioner, which employs a distributor to distribute a refrigerant to a plurality of flow paths of the heat exchanger, wherein the distributor is installed in a non-vertical manner, when a two-phase refrigerant entering the distributor is an unstable intermittent flow or a spring-like flow, large air bubbles or large air bubbles in the refrigerant enter a distribution cavity from an inlet pipe, and the refrigerant is gathered above the distribution cavity under the action of buoyancy, and a liquid phase is gathered below the distribution cavity under the action of gravity. When two-phase refrigerant flows to each outlet pipe, the outlet pipe at the upper part is mainly occupied by gas phase, and the outlet pipe at the lower part is mainly occupied by liquid phase, so that the flow rate of the refrigerant flowing into the branch of the heat exchanger from each outlet pipe of the distributor is greatly different, and the distribution uniformity is seriously reduced.

Disclosure of Invention

The invention mainly aims to provide a distributor, aiming at improving the distribution uniformity.

To achieve the above object, the present invention provides a dispenser comprising:

a liquid inlet part provided with a main flow passage; and

the distribution part is provided with a plurality of sub-channels, a distribution cavity is formed between the distribution part and the liquid inlet part, the distribution cavity is provided with a first end and a second end which are opposite, and the plurality of sub-channels penetrate through the second end and are communicated with the distribution cavity;

the feed liquor portion is equipped with from first end towards the extension that the second end extends, the sprue extends to in the extension, the extension is equipped with all the intercommunication distribution chamber with a plurality of overflow holes of sprue, at least part the overflow hole orientation the perisporium setting of distribution chamber to interval distribution in the circumference of sprue.

Optionally, the plurality of overflow holes include a first overflow hole and a plurality of second overflow holes, the first overflow hole is disposed on the end surface of the extension portion facing the second end, and the plurality of second overflow holes are disposed facing the peripheral wall of the distribution chamber and are distributed at intervals in the circumferential direction of the main flow channel.

Optionally, a plurality of branch channels in the distribution cavity are provided with a branch protrusion on the cavity wall, and the first overflow hole is arranged towards the branch protrusion.

Optionally, the circumferential dimension of the flow dividing protrusion gradually decreases in a direction towards the first overflow aperture.

Optionally, the extending portion includes an annular peripheral wall and an end wall connected to one end of the annular peripheral wall, which is far away from the end wall, is connected to the liquid inlet portion, the first overflow hole is formed in the end wall, and the plurality of second overflow holes are formed in the annular peripheral wall; alternatively, the first and second electrodes may be,

the outer surface of extension is the cambered surface, just the circumference size of extension is in the orientation reduce gradually in the direction of subchannel, first overflow hole is located the extension is close to the tip of second section, the second overflow hole is located first overflow hole is kept away from one side of second end.

Optionally, the number of the second overflow holes is greater than or equal to the number of the sub-runners, and one second overflow hole is arranged at a position of the extension portion corresponding to each sub-runner in the circumferential direction of the main runner.

Optionally, the total area of the plurality of overflow apertures is less than the cross-sectional area of the primary flow passage.

Optionally, a ratio of a total area of the plurality of overflow holes to a cross-sectional area of the primary flow passage is greater than or equal to 0.5 and less than or equal to 0.8.

Optionally, in an extending direction of the main flow passage, a ratio of a length of the extending portion extending into the distribution chamber to a length of the distribution chamber is greater than or equal to 0.2 and less than or equal to 0.8.

Optionally, the liquid inlet portion includes a first flow channel portion and a first cylinder, the first flow channel portion is provided with the main flow channel and the extension portion, the first cylinder is annularly provided at the periphery of the extension portion, one end of the first cylinder, which is far away from the first flow channel portion, is provided with a first opening, and the flow dividing portion surrounds the first opening to form the distribution cavity; and/or the presence of a gas in the gas,

the reposition of redundant personnel portion includes second runner portion and second barrel, second runner portion is equipped with a plurality ofly the subchannel, the second barrel encircles and locates a plurality ofly the periphery of subchannel, the second barrel is kept away from the two ends of second runner portion are equipped with the second opening, it encloses to close to advance liquid portion the second opening and form the distribution chamber.

The invention also provides a heat exchanger comprising the distributor.

According to the technical scheme, the liquid inlet portion is provided with the extending portion extending from the first end to the second end of the distribution cavity, so that the main flow channel extends into the extending portion, and the extending portion is provided with the plurality of overflow holes which are communicated with the distribution cavity and the main flow channel. Through the perisporium setting of at least part of overflow hole orientation distribution chamber, and interval distribution in the circumference of sprue, so when this part overflow hole flow direction distribution chamber is followed to two-phase refrigerant, can make two-phase refrigerant striking at the perisporium in distribution chamber, can break up the bubble in the two-phase refrigerant, make the gaseous phase and the liquid phase misce bene of two-phase refrigerant in the distribution chamber, and then make the two-phase refrigerant that flows to each subchannel from the distribution chamber all comparatively even, even under the scene of distributor slope installation, also can fully guarantee the reposition of redundant personnel of each subchannel of distributor even, the reposition of redundant personnel homogeneity has been improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a cross-sectional view of one embodiment of a dispenser of the present invention;

FIG. 2 is a schematic view of the liquid inlet portion of FIG. 1;

fig. 3 is a schematic structural view of the flow dividing portion in fig. 1.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the expression "and/or" as used throughout is meant to encompass three juxtaposed aspects, exemplified by "A and/or B", including either the A aspect, or the B aspect, or aspects in which both A and B are satisfied. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides a distributor for an air conditioner, which can be used for an evaporator of the air conditioner and can also be used for a condenser.

In an embodiment of the present invention, referring to fig. 1 to 3, the distributor 10 includes a liquid inlet portion 11 and a flow dividing portion 12, the liquid inlet portion 11 has a main flow channel 110, the flow dividing portion 12 has a plurality of flow dividing channels 120, a distribution cavity 13 is formed between the flow dividing portion 12 and the liquid inlet portion 11, the distribution cavity 13 has a first end and a second end opposite to each other, and the plurality of flow dividing channels 120 penetrate through the second end and are all communicated with the distribution cavity 13. The liquid inlet 11 is provided with an extending portion 111 extending from the first end to the second end, the main flow passage 110 extends into the extending portion 111, the extending portion 111 is provided with a plurality of overflow holes which are communicated with the distribution chamber 13 and the main flow passage 110, and at least part of the overflow holes are arranged toward the peripheral wall 133 of the distribution chamber 13 and are distributed at intervals in the circumferential direction of the main flow passage 110.

In this embodiment, the first end of the distribution chamber 13 is an end into which the refrigerant flows, the second end of the distribution chamber 13 is an end out of which the refrigerant flows, the distribution chamber 13 has a first chamber wall 131 located at the first end and a second chamber wall 132 located at the second end, the first chamber wall 131 and the second chamber wall 132 are disposed opposite to each other, and the liquid inlet portion 11 is disposed on the first chamber wall 131 and extends toward the second chamber wall 132. Peripheral wall 133 of dispensing chamber 13 is positioned between first chamber wall 131 and second chamber wall 132, and peripheral wall 133 of dispensing chamber 13 is connected at one end to the periphery of first chamber wall 131 and at the other end to the periphery of second chamber wall 132, it being understood that peripheral wall 133 of dispensing chamber 13 is annular. It should be noted that the first end of the distribution chamber 13 includes both the first chamber wall 131 and the end of the peripheral wall 133 connected to the first chamber wall 131, and similarly, the second end of the distribution chamber 13 includes both the second chamber wall 132 and the end of the peripheral wall 133 connected to the second chamber wall 132. That is, the plurality of branch channels 120 may penetrate through the second chamber wall 132, may penetrate through one end of the peripheral wall 133 connected to the second chamber wall 132, and may penetrate through a connection between the second chamber wall 132 and the peripheral wall 133.

When at least a part of the overflow holes are arranged towards the peripheral wall 133 of the distribution chamber 13, that is, the outlets of the part of the overflow holes are towards the peripheral wall 133 of the distribution chamber 13, so that when two-phase refrigerants flow from the part of the overflow holes to the distribution chamber 13, the two-phase refrigerants can impact on the peripheral wall 133 of the distribution chamber 13, and mixing of the two-phase refrigerants is facilitated. The number of the branch channels 120 is at least two, and specifically may be two, three, four, five or more, and so on.

The invention adopts the technical scheme that the liquid inlet part 11 is provided with the extension part 111 extending from the first end to the second end of the distribution cavity 13, so that the main flow channel 110 extends into the extension part 111, and the extension part 111 is provided with a plurality of overflow holes which are communicated with the distribution cavity 13 and the main flow channel 110. By arranging at least part of the overflow holes towards the peripheral wall 133 of the distribution cavity 13 and distributing the overflow holes at intervals in the circumferential direction of the main runner 110, when two-phase refrigerants flow to the distribution cavity 13 from the part of the overflow holes, the two-phase refrigerants can collide with the peripheral wall 133 of the distribution cavity 13 and disperse bubbles in the two-phase refrigerants, so that the gas phase and the liquid phase of the two-phase refrigerants in the distribution cavity 13 are uniformly mixed, the two-phase refrigerants flowing to the branch runners 120 from the distribution cavity 13 are uniform, even in a scene that the distributor 10 is obliquely installed, the uniform distribution of the branch runners 120 of the distributor 10 can be fully ensured, and the distribution uniformity is improved.

In an embodiment, the plurality of overflow holes include a first overflow hole 114 and a plurality of second overflow holes 115, the first overflow hole 114 is disposed on an end surface of the extension portion 111 facing the second end, and the plurality of second overflow holes 115 are disposed facing the peripheral wall 133 of the distribution chamber 13 and are distributed at intervals in the circumferential direction of the main flow channel 110. Specifically, the first overflow hole 114 is disposed toward the second chamber wall 132, that is, the axis of the first overflow hole 114 extends along the arrangement direction of the first end and the second end, so that the two-phase refrigerant flowing from the first overflow hole 114 to the distribution chamber 13 can impinge on the second chamber wall 132, and thus bubbles in the two-phase refrigerant can be dispersed. After impacting the second cavity wall 132, the portion of the two-phase refrigerant can flow around along the second cavity wall 132, so that the portion of the two-phase refrigerant is mixed with the two-phase refrigerant flowing to the distribution cavity 13 through the second overflow holes 115, thereby further improving the degree of mixing of the gas phase and the liquid phase of the two-phase refrigerant in the distribution cavity 13, and the two-phase refrigerant flowing around along the second cavity wall 132 after impacting the second cavity wall 132 can guide the two-phase refrigerant flowing out of the second overflow holes 115 to the branch runners 120. Of course, in other embodiments, the first overflow aperture 114 may not be provided.

In an embodiment, a cavity wall of the distribution cavity 13 where the plurality of branch channels 120 are located is provided with a branch protrusion 121, and the first overflow hole 114 is disposed towards the branch protrusion 121. Specifically, the flow dividing protrusion 121 is disposed on the second cavity wall 132 and is disposed toward the first overflow hole 114, so that when two-phase refrigerants flow to the flow dividing protrusion 121 from the first overflow hole 114, the two-phase refrigerants firstly collide with the flow dividing protrusion 121, bubbles in the two-phase refrigerants can be dispersed in the collision process, the two-phase refrigerants can be better guided to the periphery through the flow dividing protrusion 121, the flow uniformity of the divided two-phase refrigerants towards the periphery is improved, and the two-phase refrigerants flowing from the distribution cavity 13 to the branch runners 120 are more uniform. Of course, in other embodiments, the shunt protrusion 121 may not be provided.

In an embodiment, the circumferential dimension of the flow dividing protrusion 121 gradually decreases in a direction towards the first overflow aperture 114. That is, the circumference of the flow dividing protrusion 121 gradually decreases in the direction toward the first overflow hole 114, that is, the flow dividing protrusion 121 is tapered, and specifically, may be a cylinder, a pyramid, or a cone with a convex arc surface or a concave arc surface. The first overflow hole 114 is substantially coaxial with the tip of the flow dividing protrusion 121. By providing the circumferential dimension of the flow dividing protrusion 121 to gradually decrease in the direction toward the first overflow hole 114, the flow dividing and guiding effects of the flow dividing protrusion 121 can be improved. Of course, in other embodiments, the flow dividing protrusion 121 may be cylindrical, and at this time, an inclined flow guiding groove or an inclined flow guiding rib may be disposed on the outer circumferential surface of the flow dividing protrusion 121.

The shape of the extending portion 111 has various shapes, for example, in an embodiment, the extending portion 111 includes a circular peripheral wall 112 and an end wall 113 connected to one end of the circular peripheral wall 112, one end of the circular peripheral wall 112 away from the end wall 113 is connected to the liquid inlet portion 11, a first overflow hole 114 is provided in the end wall 113, and a plurality of second overflow holes 115 are provided in the circular peripheral wall 112. I.e. the extension 111 is substantially cylindrical or prismatic, the annular peripheral wall 112 has one end connected to the first chamber wall 131 and the other end extending towards the second chamber wall 132, the end wall 113 being arranged towards the second chamber wall 132. The extension 111 is simple in structure and convenient to form.

In an embodiment, the outer surface of the extending portion 111 is a cambered surface, the circumferential dimension of the extending portion 111 gradually decreases in a direction toward the diversion channel 120, the first overflow hole 114 is disposed at an end portion of the extending portion 111 close to the second section, and the second overflow hole 115 is disposed at a side of the first overflow hole 114 away from the second end. Specifically, the outer surface of the extension portion 111 is spherical or ellipsoidal, the second overflow holes 115 are far away from the second end compared to the first overflow holes 114, and the plurality of second overflow holes 115 surround the outer periphery of the first overflow holes 114. Compared with the prismatic extension 111, the outer surface of the extension 111 is in the arc surface arrangement, and under the condition that the protruding height and the radial size of the extension 111 relative to the first cavity wall 131 are not changed, so that the formation of an edge angle on the extension 111 can be avoided, the occupied space of the extension 111 in the distribution cavity 13 can be reduced, the size of the distribution cavity 13 can be larger under the condition that the volume of the distributor 10 is not increased, and the uniform mixing of two phases of refrigerants in the distribution cavity 13 is ensured.

In an embodiment, the number of the second overflow holes 115 is greater than or equal to the number of the branch runners 120, and one second overflow hole 115 is disposed at a position of the extension portion 111 corresponding to each branch runner 120 in the circumferential direction of the main runner 110. In this embodiment, the number of the second overflow holes 115 is the same as that of the branch runners 120, the inlet of the branch runner 120 penetrates through the second chamber wall 132, and when one second overflow hole 115 is disposed at a position of the extension portion 111 corresponding to each branch runner 120, that is, on a connecting line or an extension line of orthographic projections of the inlet of each branch runner 120 and the first overflow hole 114 on the second chamber wall 132, an orthographic projection of the second overflow hole 115 on the second chamber wall 132 is provided. With such an arrangement, the second overflow holes 115 and the inlets of the branch runners 120 are prevented from being dislocated in the circumferential direction of the main runner 110, so that the two-phase refrigerants flowing out of the second overflow holes 115 can correspondingly flow into the branch runners 120 along the direction from the first end to the second end after impacting the circumferential wall 133 of the distribution cavity 13, which is beneficial to increasing the speed of the two-phase refrigerants flowing out of the distribution cavity 13. Of course, in other embodiments, the second overflow holes 115 and the inlets of the sub-runners 120 may be arranged in a staggered manner in the circumferential direction of the main runner 110 (the circumferential direction of the distribution chamber 13), that is, at least one second overflow hole 115 is provided between the inlets of any two adjacent sub-runners 120 in the circumferential direction of the main runner 110 (the circumferential direction of the distribution chamber 13).

In one embodiment, the total area of the plurality of overflow holes is less than the cross-sectional area of the primary flow passage 110. With such an arrangement, the flow rate of the two-phase refrigerant flowing out of the overflow holes in the main flow passage 110 can be increased, so that the two-phase refrigerant can be ejected out of the overflow holes to better impact the peripheral wall 133/the second cavity wall 132 of the distribution cavity 13, bubbles in the two-phase refrigerant can be better dispersed, the gas phase and the liquid phase of the two-phase refrigerant in the distribution cavity 13 are uniformly mixed, and the distribution uniformity of each branch flow passage 120 is further improved. Of course, in other embodiments, the total area of the plurality of overflow apertures is equal to the cross-sectional area of the primary flow passage 110.

When the total area of a plurality of overflow holes is less than the cross-sectional area of sprue 110, the ratio of the total area of a plurality of overflow holes and the cross-sectional area of sprue 110 is less than 1, and if the ratio of the total area of a plurality of overflow holes and the cross-sectional area of sprue 110 is too small, the flow of the refrigerant can be reduced, the refrigerant flowing to the heat exchanger is reduced, and the heat exchange effect is deteriorated. However, if the ratio of the total area of the overflow holes to the cross-sectional area of the main flow channel 110 is too large, the flow velocity of the two-phase refrigerant flowing into the distribution chamber 13 increases less, and it is difficult to ensure that the refrigerant collides with the peripheral wall 133/the second chamber wall 132 of the distribution chamber 13. Therefore, in order to ensure a high flow rate and a high flow rate of the two-phase refrigerant flowing out from the plurality of overflow holes, in an embodiment, a ratio of a total area of the plurality of overflow holes to a cross-sectional area of the main channel 110 is greater than or equal to 0.5 and less than or equal to 0.8. The ratio of the total area of the plurality of overflow holes to the cross-sectional area of the main flow channel 110 may be 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, or 0.8. Of course, in other embodiments, the ratio of the total area of the plurality of overflow apertures to the cross-sectional area of the primary flowpath 110 may also be less than 0.5 or greater than 0.8.

In addition, if extension 111 stretches into the length of distribution chamber 13 too big, can lead to the interval between extension 111 and the entry of subchannel 120 to diminish, can hinder the entry that two-phase refrigerant flowed into subchannel 120, and if extension 111 stretches into the length undersize of distribution chamber 13, the size that is equivalent to extension 111 is less, the quantity that sets up the overflow hole on extension 111 receives the restriction, and can make overflow hole and the entry interval of ingoing subchannel 120 too big, the process of the entry of two-phase refrigerant from overflow hole flow direction income subchannel 120, the risk that the little bubble gathering that is dispersed formed the large bubble in the two-phase refrigerant can be increased. Therefore, to reduce the above risk, in an embodiment, in the extending direction of the main flow channel 110, the ratio of the length of the extending portion 111 extending into the distribution chamber 13 to the length of the distribution chamber 13 is greater than or equal to 0.2 and less than or equal to 0.8. The ratio of the length of the extension 111 extending into the distribution chamber 13 to the length of the distribution chamber 13 may be specifically 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, or 0.8. Of course, in other embodiments, the ratio of the total area of the plurality of overflow apertures to the cross-sectional area of the primary flow passage 110 may also be less than 0.2 or greater than 0.8.

For example, in an embodiment, the liquid inlet portion 11 includes a first flow channel portion 117 and a first cylinder 116, the first flow channel portion 117 is provided with a main flow channel 110 and an extending portion 111, the first cylinder 116 is disposed around the outer periphery of the extending portion 111, one end of the first cylinder 116 away from the first flow channel portion 117 is provided with a first opening 109, and the flow dividing portion 12 surrounds the first opening 109 to form the distribution chamber 13. That is, the first cylinder 116 forms a peripheral wall 133 of the distribution chamber 13, the surface of the first flow passage 117 provided with the extension 111 forms a first chamber wall 131, and the surface of the flow dividing part 12 opposite to the first flow passage 117 forms a second chamber wall 132. The liquid inlet portion 11 and the flow dividing portion 12 are formed separately and then assembled together to form the distribution chamber 13, so that the liquid inlet portion 11 and the flow dividing portion 12 can be conveniently formed, and the difficulty and cost of forming the distributor 10 can be reduced. The flow divider 12 may cover the first opening 109, or may partially extend into the first cylinder 116 from the first opening 109.

In this embodiment, the first flow channel portion 117 includes a mounting plate 118 and a liquid inlet pipe 119, the liquid inlet pipe 119 and the extension portion 111 are disposed on two opposite sides of the mounting plate 118, the first cylinder 116 is connected to a periphery of the mounting plate 118, the main flow channel 110 is formed in the liquid inlet pipe 119, and the mounting plate 118 forms a first chamber wall 131. Wherein, can be with feed liquor pipe 119 and extension 111 integrated into one piece, feed liquor pipe 119 and extension 111 are integrative tubulose promptly, are equipped with the installation via hole on the mounting panel 118, and feed liquor pipe 119 pegs graft in the installation via hole to make extension 111 stretch into first barrel 116 in, feed liquor pipe 119 and mounting panel 118 weld or pass through threaded construction and be connected. At this time, the first cylinder 116 and the mounting plate 118 are integrally formed or separately formed. The liquid inlet pipe 119, the mounting plate 118, and the first cylinder 116 may be integrally formed, and the extension portion 111 may be welded to the mounting plate 118, or the extension portion 111 may be fixed to the liquid inlet pipe 119 by insertion. Of course, in other embodiments, the first flow channel portion 117 may have a cylindrical shape.

In another embodiment, the flow dividing portion 12 includes a second flow passage portion 122 and a second cylinder 123, the second flow passage portion 122 is provided with a plurality of flow dividing passages 120, the second cylinder 123 is disposed around the peripheries of the plurality of flow dividing passages 120, a second opening 124 is disposed at an end of the second cylinder 123 far from the second flow passage portion 122, and the liquid inlet portion 11 encloses the second opening 124 to form the distribution chamber 13. That is, the second cylinder 123 forms a peripheral wall 133 of the distribution chamber 13, the second flow passage 122 forms a second chamber wall 132, and the surface of the liquid inlet 11 provided with the extension 111 forms a first chamber wall 131. The liquid inlet portion 11 and the flow dividing portion 12 are separately molded and then assembled to form the distribution chamber 13, so that the liquid inlet portion 11 and the flow dividing portion 12 can be conveniently molded, and the difficulty and cost of molding the dispenser 10 can be reduced. The liquid inlet 11 may cover the second opening 124, or may partially extend into the second cylinder 123 from the second opening 124.

In still another embodiment, the liquid inlet portion 11 includes a first flow channel portion 117 and a first cylinder 116, the first flow channel portion 117 is provided with a main flow channel 110 and an extending portion 111, the first cylinder 116 is disposed around the outer periphery of the extending portion 111, one end of the first cylinder 116 away from the first flow channel portion 117 is provided with a first opening 109, the flow dividing portion 12 includes a second flow channel portion 122 and a second cylinder 123, the second flow channel portion 122 is provided with a plurality of flow dividing channels 120, the second cylinder 123 is disposed around the outer periphery of the plurality of flow dividing channels 120, two ends of the second cylinder 123 away from the second flow channel portion 122 are provided with a second opening 124, one of the first cylinder 116 and the second cylinder 123 is inserted into the other one, so as to jointly enclose and form the distribution chamber 13. Therefore, the leakage distance between the first cylinder 116 and the second cylinder 123 can be increased, and the large sealing performance is improved.

The present invention further provides an air conditioner, which includes a heat exchanger and a distributor 10, and the specific structure of the distributor 10 refers to the above embodiments, and since the air conditioner employs all technical solutions of all the above embodiments, the air conditioner at least has all the beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated herein. The heat exchanger has a plurality of flow paths, and an inflow end of each flow path is correspondingly communicated with one of the branch runners 120. The heat exchanger can be an evaporator or a condenser.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (11)

1. A dispenser, comprising:

a liquid inlet part provided with a main flow passage; and

the distribution part is provided with a plurality of sub-channels, a distribution cavity is formed between the distribution part and the liquid inlet part, the distribution cavity is provided with a first end and a second end which are opposite, and the plurality of sub-channels penetrate through the second end and are communicated with the distribution cavity;

the feed liquor portion is equipped with from first end towards the extension that the second end extends, the sprue extends to in the extension, the extension is equipped with all the intercommunication distribution chamber with a plurality of overflow holes of sprue, at least part the overflow hole orientation the perisporium setting of distribution chamber to interval distribution in the circumference of sprue.

2. The distributor of claim 1, wherein the plurality of overflow holes comprises a first overflow hole and a plurality of second overflow holes, the first overflow hole is disposed on an end surface of the extension portion facing the second end, and the plurality of second overflow holes are disposed facing a peripheral wall of the distribution chamber and are spaced apart in a circumferential direction of the main flow channel.

3. The distributor of claim 2, wherein the wall of the distribution chamber where the plurality of branch channels are located is provided with a branch protrusion, and the first overflow hole is arranged towards the branch protrusion.

4. A distributor as set forth in claim 3 wherein said splitter projection tapers in circumferential dimension in a direction toward said first overflow aperture.

5. The dispenser of claim 2, wherein the extension portion includes an annular peripheral wall and an end wall connected to an end of the annular peripheral wall, an end of the annular peripheral wall remote from the end wall being connected to the inlet portion, the first overflow aperture being provided in the end wall, and a plurality of the second overflow apertures being provided in the annular peripheral wall; alternatively, the first and second electrodes may be,

the outer surface of extension is the cambered surface, just the circumference size of extension is in towards the direction of subchannel reduces gradually, first overflow hole is located the extension is close to the tip of second section, the second overflow hole is located first overflow hole is kept away from one side of second end.

6. The distributor according to claim 2, wherein the number of the second overflow holes is greater than or equal to the number of the branch runners, and one second overflow hole is provided at a position of the extension portion corresponding to each branch runner in the circumferential direction of the main runner.

7. The distributor of claim 1 wherein the total area of the plurality of overflow apertures is less than the cross-sectional area of the primary flow passage.

8. The distributor according to claim 7 wherein the ratio of the total area of the plurality of overflow apertures to the cross-sectional area of the primary flow passage is greater than or equal to 0.5 and less than or equal to 0.8.

9. The dispenser of claim 1, wherein a ratio of a length of the extension into the dispensing chamber to a length of the dispensing chamber in an extension direction of the main flow passage is greater than or equal to 0.2 and less than or equal to 0.8.

10. The distributor according to any one of claims 1 to 9, wherein the liquid inlet portion comprises a first flow passage portion and a first cylinder, the first flow passage portion is provided with the main flow passage and the extension portion, the first cylinder is annularly arranged on the periphery of the extension portion, one end of the first cylinder, which is far away from the first flow passage portion, is provided with a first opening, and the flow dividing portion surrounds the first opening to form the distribution cavity; and/or the presence of a gas in the atmosphere,

the reposition of redundant personnel portion includes second runner portion and second barrel, second runner portion is equipped with a plurality ofly the subchannel, the second barrel encircles and locates a plurality ofly the periphery of subchannel, the second barrel is kept away from the two ends of second runner portion are equipped with the second opening, it encloses to close to advance liquid portion the second opening and form the distribution chamber.

11. An air conditioner characterized by comprising the distributor according to any one of claims 1 to 10.

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